Release v0.13.0

Disable update/download warnings for stable release
Weblate translations (#6494 )
2025-06-26 11:07:51 +02:00 · 2022-01-31 15:32:08 -05:00 · 2022-01-31 15:28:14 -05:00 · 2022-01-31 15:28:05 -05:00 · 2022-01-31 15:01:01 -05:00 · 2022-01-30 10:51:49 -05:00
1349 changed files with 91640 additions and 39343 deletions
--- a/.gitattributes
+++ b/.gitattributes
@ -0,0 +1,24 @@
+* text=auto
+* text eol=lf
+
+# Windows forced line-endings
+/.idea/* text eol=crlf
+
+# Gradle wrapper
+*.jar binary
+
+# Images
+*.webp binary
+*.png binary
+*.jpg binary
+*.jpeg binary
+*.gif binary
+*.ico binary
+*.gz binary
+*.zip binary
+*.7z binary
+*.ttf binary
+*.eot binary
+*.woff binary
+*.pyc binary
+*.swp binary
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@ -1,33 +0,0 @@
-1. **Before reporting a new issue, take a look at the [FAQ](https://github.com/inorichi/tachiyomi/wiki/FAQ), the [changelog](https://github.com/inorichi/tachiyomi/releases) and the already opened [issues](https://github.com/inorichi/tachiyomi/issues).**
-2. If you are unsure, ask here: [![Discord](https://img.shields.io/discord/349436576037732353.svg)](https://discord.gg/WrBkRk4)
-3. What is your type of issue?
-    * [Catalogue request](#catalogue-requests)
-    * [Bugs](#bugs)
-    * [Feature requests](#feature-requests)
-    * [Translations](https://github.com/inorichi/tachiyomi/wiki/Translation)
-4. After following 1. and 3. you can [open your issue](https://github.com/inorichi/tachiyomi/issues/new)
-
-***
-
-# Catalogue requests
-
-* Catalogue requests should be created at https://github.com/inorichi/tachiyomi-extensions#readme, not here
-
-# Bugs
-* Include version (Setting > About > Version)
- * If not latest, try updating, it may have already been solved
- * Dev version is equal to the number of commits as seen in the main page
-* Include steps to reproduce (if not obvious from description)
-* Include screenshot (if needed)
-* If it could be device-dependent, try reproducing on another device (if possible)
-* For large logs use http://pastebin.com/ (or similar)
-* Don't group unrelated requests into one issue
-
-DO: https://github.com/inorichi/tachiyomi/issues/24 https://github.com/inorichi/tachiyomi/issues/71
-
-DON'T: https://github.com/inorichi/tachiyomi/issues/75
-
-# Feature requests
-
-* Write a detailed issue, explaning what it should do or how. Avoid writing just "like X app does"
-* Include screenshot (if needed)
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@ -0,0 +1 @@
+ko_fi: inorichi
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@ -1 +1,34 @@
-**Please read https://github.com/inorichi/tachiyomi/blob/master/.github/CONTRIBUTING.md before posting**
+**PLEASE READ THIS**
+
+I acknowledge that:
+
+- I have updated:
+  - To the latest version of the app (stable is v0.12.3)
+  - All extensions
+- I have tried the troubleshooting guide: https://tachiyomi.org/help/guides/troubleshooting-problems/
+- If this is an issue with an extension, that I should be opening an issue in https://github.com/tachiyomiorg/tachiyomi-extensions
+- I have searched the existing issues and this is new ticket **NOT** a duplicate or related to another open issue
+- I will fill out the title and the information in this template
+
+Note that the issue will be automatically closed if you do not fill out the title or requested information.
+
+**DELETE THIS SECTION IF YOU HAVE READ AND ACKNOWLEDGED IT**
+
+---
+
+## Device information
+* Tachiyomi version: ?
+* Android version: ?
+* Device: ?
+
+## Steps to reproduce
+1. First step
+2. Second step
+
+## Issue/Request
+?
+
+## Other details
+Additional details and attachments.
+
+If you're experiencing crashes, share the crash logs from More → Settings → Advanced → Dump crash logs.
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -0,0 +1,11 @@
+blank_issues_enabled: false
+contact_links:
+  - name: ⚠️ Extension/source issue
+    url: https://github.com/tachiyomiorg/tachiyomi-extensions/issues/new/choose
+    about: Issues and requests for extensions and sources should be opened in the tachiyomi-extensions repository instead
+  - name: 📦 Tachiyomi extensions
+    url: https://tachiyomi.org/extensions
+    about: List of all available extensions with download links
+  - name: 🖥️ Tachiyomi website
+    url: https://tachiyomi.org/help/
+    about: Guides, troubleshooting, and answers to common questions
--- a/.github/ISSUE_TEMPLATE/report_issue.yml
+++ b/.github/ISSUE_TEMPLATE/report_issue.yml
@ -0,0 +1,106 @@
+name: 🐞 Issue report
+description: Report an issue in Tachiyomi
+labels: [Bug]
+body:
+
+  - type: textarea
+    id: reproduce-steps
+    attributes:
+      label: Steps to reproduce
+      description: Provide an example of the issue.
+      placeholder: |
+        Example:
+          1. First step
+          2. Second step
+          3. Issue here
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected behavior
+      description: Explain what you should expect to happen.
+      placeholder: |
+        Example:
+          "This should happen..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: actual-behavior
+    attributes:
+      label: Actual behavior
+      description: Explain what actually happens.
+      placeholder: |
+        Example:
+          "This happened instead..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: crash-logs
+    attributes:
+      label: Crash logs
+      description: |
+        If you're experiencing crashes, share the crash logs from **More → Settings → Advanced** then press **Dump crash logs**.
+      placeholder: |
+        You can paste the crash logs in pure text or upload it as an attachment.
+
+  - type: input
+    id: tachiyomi-version
+    attributes:
+      label: Tachiyomi version
+      description: You can find your Tachiyomi version in **More → About**.
+      placeholder: |
+        Example: "0.12.3"
+    validations:
+      required: true
+
+  - type: input
+    id: android-version
+    attributes:
+      label: Android version
+      description: You can find this somewhere in your Android settings.
+      placeholder: |
+        Example: "Android 11"
+    validations:
+      required: true
+
+  - type: input
+    id: device
+    attributes:
+      label: Device
+      description: List your device and model.
+      placeholder: |
+        Example: "Google Pixel 5"
+    validations:
+      required: true
+
+  - type: textarea
+    id: other-details
+    attributes:
+      label: Other details
+      placeholder: |
+        Additional details and attachments.
+
+  - type: checkboxes
+    id: acknowledgements
+    attributes:
+      label: Acknowledgements
+      description: Read this carefully, we will close and ignore your issue if you skimmed through this.
+      options:
+        - label: I have searched the existing issues and this is a new ticket, **NOT** a duplicate or related to another open issue.
+          required: true
+        - label: I have written a short but informative title.
+          required: true
+        - label: If this is an issue with an extension, I should be opening an issue in the [extensions repository](https://github.com/tachiyomiorg/tachiyomi-extensions/issues/new/choose).
+          required: true
+        - label: I have tried the [troubleshooting guide](https://tachiyomi.org/help/guides/troubleshooting/).
+          required: true
+        - label: I have updated the app to version **[0.12.3](https://github.com/tachiyomiorg/tachiyomi/releases/latest)**.
+          required: true
+        - label: I have updated all installed extensions.
+          required: true
+        - label: I will fill out all of the requested information in this form.
+          required: true
--- a/.github/ISSUE_TEMPLATE/request_feature.yml
+++ b/.github/ISSUE_TEMPLATE/request_feature.yml
@ -0,0 +1,39 @@
+name: ⭐ Feature request
+description: Suggest a feature to improve Tachiyomi
+labels: [Feature request]
+body:
+
+  - type: textarea
+    id: feature-description
+    attributes:
+      label: Describe your suggested feature
+      description: How can Tachiyomi be improved?
+      placeholder: |
+        Example:
+          "It should work like this..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: other-details
+    attributes:
+      label: Other details
+      placeholder: |
+        Additional details and attachments.
+
+  - type: checkboxes
+    id: acknowledgements
+    attributes:
+      label: Acknowledgements
+      description: Read this carefully, we will close and ignore your issue if you skimmed through this.
+      options:
+        - label: I have searched the existing issues and this is a new ticket, **NOT** a duplicate or related to another open issue.
+          required: true
+        - label: I have written a short but informative title.
+          required: true
+        - label: If this is an issue with an extension, I should be opening an issue in the [extensions repository](https://github.com/tachiyomiorg/tachiyomi-extensions/issues/new/choose).
+          required: true
+        - label: I have updated the app to version **[0.12.3](https://github.com/tachiyomiorg/tachiyomi/releases/latest)**.
+          required: true
+        - label: I will fill out all of the requested information in this form.
+          required: true
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@ -0,0 +1,12 @@
+<!--
+  Please include a summary of the change and which issue is fixed.
+  Also make sure you've tested your code and also done a self-review of it.
+  Don't forget to check all base themes and tablet mode for relevant changes.
+  
+  If your changes are visual, please provide images below:
+
+### Images
+| Image 1 | Image 2 |
+| ------- | ------- |
+| ![](https://github.githubassets.com/images/modules/logos_page/Octocat.png) | ![](https://github.githubassets.com/images/modules/logos_page/Octocat.png) |
+-->
--- a/.github/readme-images/app-icon.png
+++ b/.github/readme-images/app-icon.png
--- a/.github/runner-files/ci-gradle.properties
+++ b/.github/runner-files/ci-gradle.properties
@ -0,0 +1,6 @@
+org.gradle.daemon=false
+org.gradle.jvmargs=-Xmx5120m
+org.gradle.workers.max=2
+
+kotlin.incremental=false
+kotlin.compiler.execution.strategy=in-process
--- a/.github/workflows/build_pull_request.yml
+++ b/.github/workflows/build_pull_request.yml
@ -0,0 +1,33 @@
+name: PR build check
+on:
+  pull_request:
+    paths-ignore:
+      - '**.md'
+      - 'app/src/main/res/**/strings.xml'
+
+jobs:
+  build:
+    name: Build app
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Clone repo
+        uses: actions/checkout@v2
+
+      - name: Validate Gradle Wrapper
+        uses: gradle/wrapper-validation-action@v1
+
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+
+      - name: Copy CI gradle.properties
+        run: |
+          mkdir -p ~/.gradle
+          cp .github/runner-files/ci-gradle.properties ~/.gradle/gradle.properties
+
+      - name: Build app
+        uses: gradle/gradle-command-action@v2
+        with:
+          arguments: assembleStandardRelease
--- a/.github/workflows/build_push.yml
+++ b/.github/workflows/build_push.yml
@ -0,0 +1,106 @@
+name: CI
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - v*
+
+jobs:
+  build:
+    name: Build app
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Cancel previous runs
+        uses: styfle/cancel-workflow-action@0.9.1
+        with:
+          access_token: ${{ github.token }}
+          all_but_latest: true
+
+      - name: Clone repo
+        uses: actions/checkout@v2
+
+      - name: Validate Gradle Wrapper
+        uses: gradle/wrapper-validation-action@v1
+
+      - name: Set up JDK 11
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+
+      - name: Copy CI gradle.properties
+        run: |
+          mkdir -p ~/.gradle
+          cp .github/runner-files/ci-gradle.properties ~/.gradle/gradle.properties
+
+      - name: Build app
+        uses: gradle/gradle-command-action@v2
+        with:
+          arguments: assembleStandardRelease
+
+      # Sign APK and create release for tags
+
+      - name: Get tag name
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'tachiyomiorg/tachiyomi'
+        run: |
+          set -x
+          echo "VERSION_TAG=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
+
+      - name: Sign APK
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'tachiyomiorg/tachiyomi'
+        uses: r0adkll/sign-android-release@v1
+        with:
+          releaseDirectory: app/build/outputs/apk/standard/release
+          signingKeyBase64: ${{ secrets.SIGNING_KEY }}
+          alias: ${{ secrets.ALIAS }}
+          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
+          keyPassword: ${{ secrets.KEY_PASSWORD }}
+
+      - name: Clean up build artifacts
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'tachiyomiorg/tachiyomi'
+        run: |
+          set -e
+
+          mv app/build/outputs/apk/standard/release/app-standard-universal-release-unsigned-signed.apk tachiyomi-${{ env.VERSION_TAG }}.apk
+          sha=`sha256sum tachiyomi-${{ env.VERSION_TAG }}.apk | awk '{ print $1 }'`
+          echo "APK_UNIVERSAL_SHA=$sha" >> $GITHUB_ENV
+
+          cp app/build/outputs/apk/standard/release/app-standard-arm64-v8a-release-unsigned-signed.apk tachiyomi-arm64-v8a-${{ env.VERSION_TAG }}.apk
+          sha=`sha256sum tachiyomi-arm64-v8a-${{ env.VERSION_TAG }}.apk | awk '{ print $1 }'`
+          echo "APK_ARM64_V8A_SHA=$sha" >> $GITHUB_ENV
+
+          cp app/build/outputs/apk/standard/release/app-standard-armeabi-v7a-release-unsigned-signed.apk tachiyomi-armeabi-v7a-${{ env.VERSION_TAG }}.apk
+          sha=`sha256sum tachiyomi-armeabi-v7a-${{ env.VERSION_TAG }}.apk | awk '{ print $1 }'`
+          echo "APK_ARMEABI_V7A_SHA=$sha" >> $GITHUB_ENV
+
+          cp app/build/outputs/apk/standard/release/app-standard-x86-release-unsigned-signed.apk tachiyomi-x86-${{ env.VERSION_TAG }}.apk
+          sha=`sha256sum tachiyomi-x86-${{ env.VERSION_TAG }}.apk | awk '{ print $1 }'`
+          echo "APK_X86_SHA=$sha" >> $GITHUB_ENV
+
+      - name: Create Release
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'tachiyomiorg/tachiyomi'
+        uses: softprops/action-gh-release@v1
+        with:
+          tag_name: ${{ env.VERSION_TAG }}
+          name: Tachiyomi ${{ env.VERSION_TAG }}
+          body: |
+            ---
+
+            ### Checksums
+
+            | Variant | SHA-256 |
+            | ------- | ------- |
+            | Universal | ${{ env.APK_UNIVERSAL_SHA }}
+            | arm64-v8a | ${{ env.APK_ARM64_V8A_SHA }}
+            | armeabi-v7a | ${{ env.APK_ARMEABI_V7A_SHA }}
+            | x86 | ${{ env.APK_X86_SHA }} |
+          files: |
+            tachiyomi-${{ env.VERSION_TAG }}.apk
+            tachiyomi-arm64-v8a-${{ env.VERSION_TAG }}.apk
+            tachiyomi-armeabi-v7a-${{ env.VERSION_TAG }}.apk
+            tachiyomi-x86-${{ env.VERSION_TAG }}.apk
+          draft: true
+          prerelease: false
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/cancel_pull_request.yml
+++ b/.github/workflows/cancel_pull_request.yml
@ -0,0 +1,16 @@
+name: Cancel old pull request workflows
+
+on:
+  workflow_run:
+    workflows: ["PR build check"]
+    types:
+      - requested
+
+jobs:
+  cancel:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: styfle/cancel-workflow-action@0.9.1
+      with:
+        all_but_latest: true
+        workflow_id: ${{ github.event.workflow.id }}
--- a/.github/workflows/issue_closer.yml
+++ b/.github/workflows/issue_closer.yml
@ -0,0 +1,32 @@
+name: Issue closer
+on:
+  issues:
+    types: [opened, edited, reopened]
+
+jobs:
+  autoclose:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Autoclose issues
+        uses: arkon/issue-closer-action@v3.4
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          rules: |
+            [
+              {
+                "type": "body",
+                "regex": ".*DELETE THIS SECTION IF YOU HAVE READ AND ACKNOWLEDGED IT.*",
+                "message": "The acknowledgment section was not removed."
+              },
+              {
+                "type": "body",
+                "regex": ".*\\* (Tachiyomi version|Android version|Device): \\?.*",
+                "message": "Requested information in the template was not filled out."
+              },
+              {
+                "type": "both",
+                "regex": "^(?!.*myanimelist.*).*(aniyomi|anime).*$",
+                "ignoreCase": true,
+                "message": "Tachiyomi does not support anime, and has no plans to support anime. In addition Tachiyomi is not affiliated with Aniyomi https://github.com/jmir1/aniyomi"
+              }
+            ]
--- a/.github/workflows/issue_moderator.yml
+++ b/.github/workflows/issue_moderator.yml
@ -0,0 +1,14 @@
+name: Issue moderator
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  moderate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Moderate issues
+        uses: tachiyomiorg/issue-moderator-action@v1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/lock.yml
+++ b/.github/workflows/lock.yml
@ -0,0 +1,19 @@
+name: Lock threads
+
+on:
+  # Daily
+  schedule:
+    - cron: '0 0 * * *'
+  # Manual trigger
+  workflow_dispatch:
+    inputs:
+
+jobs:
+  lock:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dessant/lock-threads@v3
+        with:
+          github-token: ${{ github.token }}
+          issue-inactive-days: '2'
+          pr-inactive-days: '2'
--- a/.gitignore
+++ b/.gitignore
@ -2,8 +2,15 @@
 /local.properties
 /.idea/workspace.xml
 .DS_Store
-/build
 .idea/
 *iml
 *.iml
-*/build
+
+# Built files
+*/build
+/build
+*.apk
+app/**/output.json
+
+# Hebrew assets are copied on build
+app/src/main/res/values-iw/
--- a/.travis.yml
+++ b/.travis.yml
@ -1,57 +0,0 @@
-language: android
-android:
-  components:
-  - build-tools-27.0.1
-  - android-26
-  - extra-android-m2repository
-  - extra-google-m2repository
-  - extra-android-support
-  - extra-google-google_play_services
-  licenses:
-  - android-sdk-license-.+
-before_install:
- if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then
-    openssl aes-256-cbc -K $encrypted_e56be693d4fd_key -iv $encrypted_e56be693d4fd_iv -in "$PWD/.travis/secrets.tar.enc" -out secrets.tar -d;
-    tar xf secrets.tar;
-    mv debug.keystore "$HOME/.android";
-  fi
- git clone https://github.com/urho3d/android-ndk.git $HOME/android-ndk-root
- export ANDROID_NDK_HOME=$HOME/android-ndk-root
- mkdir "$ANDROID_HOME/licenses" || true
- echo -e "\n8933bad161af4178b1185d1a37fbf41ea5269c55" > "$ANDROID_HOME/licenses/android-sdk-license"
- echo -e "\n84831b9409646a918e30573bab4c9c91346d8abd" > "$ANDROID_HOME/licenses/android-sdk-preview-license"
-script: ".travis/build.sh"
-before_cache:
- rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
- rm -fr $HOME/.gradle/caches/*/plugin-resolution/
-cache:
-  directories:
-  - "$HOME/.gradle/caches/"
-  - "$HOME/.gradle/wrapper/"
-  - "$HOME/.android/build-cache"
-deploy:
- provider: releases
-  api_key:
-    secure: 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
-  file: tachiyomi-v*.apk
-  file_glob: true
-  skip_cleanup: true
-  on:
-    tags: true
-    repo: inorichi/tachiyomi
- provider: script
-  script: ".travis/deploy.sh"
-  skip_cleanup: true
-  on:
-    branch: master
-    condition: "-z $TRAVIS_TAG"
-    repo: inorichi/tachiyomi
-env:
-  global:
-  - secure: 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
-  - secure: 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
-  - secure: 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
-  - secure: mawwBvllvESc/mp+JHvncq1iUhiC7nyokPgXmOehffc0K3byMLs2L25HjNsU6EnXG9Lcae1cfP8S9bWLquU2C3kpAkLBUpjEbdx7K0654uvs7Rrvb5hcTRHwjzaEVmVaBFX4ROcjUhBYny/Wjj/YENCkSWpkfcMd1esFbVsO+fOLyaAPvrb6auKY7H+pUSqlEwaEnrkYeBBZIHa7KqwL4g5DHbq6K368tjmval/wBzwMB0V8V3dt/ik8RMVDtKPrik4Bu0V9UmXZUIo/a06ii/CM82ekFRh3eUb0DKkdkmYbdH6MBMoLTfQtMa6A4luXaA0oycAnTX3OGB5MWIjK39KhWRavh6ybSIt4aHKoolxzH8Zgmk7xMhFSot/laX5q5IzjZu5KU6F2SmdV0kcQugM8oAjANFySetPvY1q7nZ8pM+NO1xKS/mH0w4vChhdJFD1mw7aCoh8FdeUf0Eym2+pp5Q9uAisWMmNn5XN8/fL5q6PzAxkXmkedfrr1N61FmIL6EKx8qiWpOUNlRRTIMJ4GMhCyckCF6cNxDkBItp52c+Hmkbn+ZEInEyX6gpjYVm3xyEi0Z5kLCi/fMX2nBNczc5BuGLzzmJnITv4ovpeYn2/vPvHbaPgPC4LqDK3AjlpVadMZk/M5Egn+hWY7Mni57CmpZD+SpxUbbsItI0c=
-  - secure: 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
-  - secure: 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
-  - secure: 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
--- a/.travis/build.sh
+++ b/.travis/build.sh
@ -1,20 +0,0 @@
-#!/bin/bash
-
-git fetch --unshallow #required for commit count
-
-if [ -z "$TRAVIS_TAG" ]; then
-    ./gradlew clean assembleStandardDebug
-
-    COMMIT_COUNT=$(git rev-list --count HEAD)
-    export ARTIFACT="tachiyomi-r${COMMIT_COUNT}.apk"
-
-    mv app/build/outputs/apk/standard/debug/app-standard-debug.apk $ARTIFACT
-else
-    ./gradlew clean assembleStandardRelease
-
-    TOOLS="$(ls -d ${ANDROID_HOME}/build-tools/* | tail -1)"
-    export ARTIFACT="tachiyomi-${TRAVIS_TAG}.apk"
-
-    ${TOOLS}/zipalign -v -p 4 app/build/outputs/apk/standard/release/app-standard-release-unsigned.apk app-aligned.apk
-    ${TOOLS}/apksigner sign --ks $STORE_PATH --ks-key-alias $STORE_ALIAS --ks-pass env:STORE_PASS --key-pass env:KEY_PASS --out $ARTIFACT app-aligned.apk
-fi
--- a/.travis/deploy.sh
+++ b/.travis/deploy.sh
@ -1,15 +0,0 @@
-#!/bin/bash
-
-pattern="tachiyomi-r*"
-files=( $pattern )
-export ARTIFACT="${files[0]}"
-
-if [ -z "$ARTIFACT" ]; then
-    echo "Artifact not found"
-    exit 1
-fi
-
-export SSHOPTIONS="-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -i ${DEPLOY_KEY}"
-
-scp $SSHOPTIONS $ARTIFACT $DEPLOY_USER@$DEPLOY_HOST:builds/
-ssh $SSHOPTIONS $DEPLOY_USER@$DEPLOY_HOST ln -sf $ARTIFACT builds/latest
--- a/.travis/secrets.tar.enc
+++ b/.travis/secrets.tar.enc
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@ -0,0 +1,126 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, caste, color, religion, or sexual identity
+and orientation.
+
+We pledge to act and interact in ways that contribute to an open, welcoming,
+diverse, inclusive, and healthy community.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment for our
+community include:
+
+* Demonstrating empathy and kindness toward other people
+* Being respectful of differing opinions, viewpoints, and experiences
+* Giving and gracefully accepting constructive feedback
+* Accepting responsibility and apologizing to those affected by our mistakes,
+  and learning from the experience
+* Focusing on what is best not just for us as individuals, but for the
+  overall community
+
+Examples of unacceptable behavior include:
+
+* The use of sexualized language or imagery, and sexual attention or
+  advances of any kind
+* Trolling, insulting or derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or email
+  address, without their explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Enforcement Responsibilities
+
+Community moderators are responsible for clarifying and enforcing our standards of
+acceptable behavior and will take appropriate and fair corrective action in
+response to any behavior that they deem inappropriate, threatening, offensive,
+or harmful.
+
+Community moderators have the right and responsibility to remove, edit, or reject
+comments, commits, code, wiki edits, issues, and other contributions that are
+not aligned to this Code of Conduct, and will communicate reasons for moderation
+decisions when appropriate.
+
+## Scope
+
+This Code of Conduct applies within all community spaces, and also applies when
+an individual is officially representing the community in public spaces.
+Examples of representing our community include using an official e-mail address,
+posting via an official social media account, or acting as an appointed
+representative at an online or offline event.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the community moderators responsible for enforcement at
+the [Tachiyomi Discord server](https://discord.gg/tachiyomi).
+All complaints will be reviewed and investigated promptly and fairly.
+
+All community moderators are obligated to respect the privacy and security of the
+reporter of any incident.
+
+## Enforcement Guidelines
+
+Community moderators will follow these Community Impact Guidelines in determining
+the consequences for any action they deem in violation of this Code of Conduct:
+
+### 1. Correction
+
+**Community Impact**: Use of inappropriate language or other behavior deemed
+unprofessional or unwelcome in the community.
+
+**Consequence**: A private, written warning from community moderators, providing
+clarity around the nature of the violation and an explanation of why the
+behavior was inappropriate. A public apology may be requested.
+
+### 2. Warning
+
+**Community Impact**: A violation through a single incident or series
+of actions.
+
+**Consequence**: A warning with consequences for continued behavior. No
+interaction with the people involved, including unsolicited interaction with
+those enforcing the Code of Conduct, for a specified period of time. This
+includes avoiding interactions in community spaces as well as external channels
+like social media. Violating these terms may lead to a temporary or
+permanent ban.
+
+### 3. Temporary Ban
+
+**Community Impact**: A serious violation of community standards, including
+sustained inappropriate behavior.
+
+**Consequence**: A temporary ban from any sort of interaction or public
+communication with the community for a specified period of time. No public or
+private interaction with the people involved, including unsolicited interaction
+with those enforcing the Code of Conduct, is allowed during this period.
+Violating these terms may lead to a permanent ban.
+
+### 4. Permanent Ban
+
+**Community Impact**: Demonstrating a pattern of violation of community
+standards, including sustained inappropriate behavior,  harassment of an
+individual, or aggression toward or disparagement of classes of individuals.
+
+**Consequence**: A permanent ban from any sort of public interaction within
+the community.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org/),
+version 2.1, available at
+[v2.1](https://www.contributor-covenant.org/version/2/1/code_of_conduct.html).
+
+Community Impact Guidelines were inspired by
+[Mozilla's code of conduct enforcement ladder](https://github.com/mozilla/diversity).
+
+For answers to common questions about this code of conduct, see the FAQ at
+[FAQ](https://www.contributor-covenant.org/faq). Translations are available
+at [translations](https://www.contributor-covenant.org/translations).
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -0,0 +1,35 @@
+Looking to report an issue/bug or make a feature request? Please refer to the [README file](https://github.com/tachiyomiorg/tachiyomi#issues-feature-requests-and-contributing).
+
+---
+
+Thanks for your interest in contributing to Tachiyomi!
+
+
+# Code contributions
+
+Pull requests are welcome!
+
+If you're interested in taking on [an open issue](https://github.com/tachiyomiorg/tachiyomi/issues), please comment on it so others are aware.
+You do not need to ask for permission nor an assignment.
+
+
+# Translations
+
+Translations are done externally via Weblate. See [our website](https://tachiyomi.org/help/contribution/#translation) for more details.
+
+
+# Forks
+
+Forks are allowed so long as they abide by [the project's LICENSE](https://github.com/tachiyomiorg/tachiyomi/blob/master/LICENSE).
+
+When creating a fork, remember to:
+
+- To avoid confusion with the main app:
+    - Change the app name
+    - Change the app icon
+    - Change or disable the [app update checker](https://github.com/tachiyomiorg/tachiyomi/blob/master/app/src/main/java/eu/kanade/tachiyomi/data/updater/GithubUpdateChecker.kt)
+- To avoid installation conflicts:
+    - Change the `applicationId` in [`build.gradle.kts`](https://github.com/tachiyomiorg/tachiyomi/blob/master/app/build.gradle.kts)
+- To avoid having your data polluting the main app's analytics and crash report services:
+    - If you want to use Firebase analytics, replace [`google-services.json`](https://github.com/tachiyomiorg/tachiyomi/blob/master/app/src/standard/google-services.json) with your own
+    - If you want to use ACRA crash reporting, replace the `ACRA_URI` endpoint in [`build.gradle.kts`](https://github.com/tachiyomiorg/tachiyomi/blob/master/app/build.gradle.kts) with your own
--- a/26
+++ b/26
@ -174,29 +174,3 @@
      of your accepting any such warranty or additional liability.

   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "{}"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright {yyyy} {name of copyright owner}
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
--- a/README.md
+++ b/README.md
@ -1,25 +1,77 @@
-| Build | Download | F-Droid | Contribute | Contact |
+| Build | Stable | Weekly Preview | Contribute | Support Server |
 |-------|----------|---------|------------|---------|
-| [![Travis](https://img.shields.io/travis/inorichi/tachiyomi.svg)](https://travis-ci.org/inorichi/tachiyomi) | [![stable release](https://img.shields.io/github/release/inorichi/tachiyomi.svg?maxAge=3600&label=stable)](https://github.com/inorichi/tachiyomi/releases) [![latest dev build](https://img.shields.io/badge/dev-latest%20build-blue.svg)](http://tachiyomi.kanade.eu/latest) | [![fdroid release](https://img.shields.io/badge/stable-f--droid.org-blue.svg)](https://f-droid.org/repository/browse/?fdid=eu.kanade.tachiyomi) [![fdroid dev](https://img.shields.io/badge/dev-wiki-blue.svg)](//github.com/inorichi/tachiyomi/wiki/FDroid-for-dev-versions) | [![Translation status](http://weblate.j2ghz.com/widgets/tachiyomi/-/svg-badge.svg)](https://github.com/inorichi/tachiyomi/wiki/Translation) | [![Discord](https://img.shields.io/discord/349436576037732353.svg)](https://discord.gg/WrBkRk4) |
+| ![CI](https://github.com/tachiyomiorg/tachiyomi/workflows/CI/badge.svg?branch=dev&event=push) | [![stable release](https://img.shields.io/github/release/tachiyomiorg/tachiyomi.svg?maxAge=3600&label=download)](https://github.com/tachiyomiorg/tachiyomi/releases) | [![latest preview build](https://img.shields.io/github/v/release/tachiyomiorg/tachiyomi-preview.svg?maxAge=3600&label=download)](https://github.com/tachiyomiorg/tachiyomi-preview/releases) | [![Translation status](https://hosted.weblate.org/widgets/tachiyomi/-/svg-badge.svg)](https://hosted.weblate.org/engage/tachiyomi/?utm_source=widget) | [![Discord](https://img.shields.io/discord/349436576037732353.svg?label=discord&labelColor=7289da&color=2c2f33&style=flat)](https://discord.gg/tachiyomi) |

-### **Contact us on [Discord](https://discord.gg/WrBkRk4)**
-If you want to open an issue, please read [contributing guidelines](https://github.com/inorichi/tachiyomi/blob/master/.github/CONTRIBUTING.md). Your issue may be closed otherwise.

-***
+# ![app icon](./.github/readme-images/app-icon.png)Tachiyomi
+Tachiyomi is a free and open source manga reader for Android 6.0 and above.

-Tachiyomi is a free and open source manga reader for Android.
+## Features

-Keep in mind it's still a beta, so expect it to crash sometimes.
-
-# Features
-
-* Online and offline reading
-* Configurable reader with multiple viewers and settings
-* MyAnimeList support
-* Resume from the next unread chapter
-* Chapter filtering
-* Schedule searching for updates
+Features include:
+* Online reading from a variety of sources
+* Local reading of downloaded content
+* A configurable reader with multiple viewers, reading directions and other settings.
+* Tracker support: [MyAnimeList](https://myanimelist.net/), [AniList](https://anilist.co/), [Kitsu](https://kitsu.io/), [Shikimori](https://shikimori.one), and [Bangumi](https://bgm.tv/)
 * Categories to organize your library
+* Light and dark themes
+* Schedule updating your library for new chapters
+* Create backups locally to read offline or to your desired cloud service
+
+## Download
+Get the app from our [releases page](https://github.com/tachiyomiorg/tachiyomi/releases).
+
+If you want to try new features before they get to the stable release, you can download the preview version [here](https://github.com/tachiyomiorg/tachiyomi-preview/releases).
+
+## Issues, Feature Requests and Contributing
+
+Please make sure to read the full guidelines. Your issue may be closed without warning if you do not.
+
+<details><summary>Issues</summary>
+
+1. **Before reporting a new issue, take a look at the [FAQ](https://tachiyomi.org/help/faq/), the [changelog](https://github.com/tachiyomiorg/tachiyomi/releases) and the already opened [issues](https://github.com/tachiyomiorg/tachiyomi/issues).**
+2. If you are unsure, ask here: [![Discord](https://img.shields.io/discord/349436576037732353.svg)](https://discord.gg/tachiyomi)
+
+</details>
+
+<details><summary>Bugs</summary>
+
+* Include version (More → About → Version)
+ * If not latest, try updating, it may have already been solved
+ * Preview version is equal to the number of commits as seen in the main page
+* Include steps to reproduce (if not obvious from description)
+* Include screenshot (if needed)
+* If it could be device-dependent, try reproducing on another device (if possible)
+* Don't group unrelated requests into one issue
+
+DO: https://github.com/tachiyomiorg/tachiyomi/issues/24 https://github.com/tachiyomiorg/tachiyomi/issues/71
+
+DON'T: https://github.com/tachiyomiorg/tachiyomi/issues/75
+
+</details>
+
+<details><summary>Feature Requests</summary>
+
+* Write a detailed issue, explaining what it should do or how. Avoid writing just "like X app does"
+* Include screenshot (if needed)
+
+Source requests should be created at https://github.com/tachiyomiorg/tachiyomi-extensions, they do not belong in this repository.
+</details>
+
+<details><summary>Contributing</summary>
+
+See [CONTRIBUTING.md](./CONTRIBUTING.md).
+</details>
+
+<details><summary>Code of Conduct</summary>
+
+See [CODE_OF_CONDUCT.md](./CODE_OF_CONDUCT.md).
+</details>
+
+## FAQ
+
+[See our website.](https://tachiyomi.org/)
+You can also reach out to us on [Discord](https://discord.gg/tachiyomi).

 ## License

--- a/app/.gitignore
+++ b/app/.gitignore
@ -1,4 +1,4 @@
 /build
 *iml
 *.iml
-custom.gradle
+custom.gradle
--- a/app/build.gradle
+++ b/app/build.gradle
@ -1,255 +0,0 @@
-import java.text.SimpleDateFormat
-
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-android-extensions'
-apply plugin: 'kotlin-kapt'
-apply plugin: 'com.github.zellius.shortcut-helper'
-
-shortcutHelper.filePath = './shortcuts.xml'
-
-ext {
-    // Git is needed in your system PATH for these commands to work.
-    // If it's not installed, you can return a random value as a workaround
-    getCommitCount = {
-        return 'git rev-list --count HEAD'.execute().text.trim()
-        // return "1"
-    }
-
-    getGitSha = {
-        return 'git rev-parse --short HEAD'.execute().text.trim()
-        // return "1"
-    }
-
-    getBuildTime = {
-        def df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'")
-        df.setTimeZone(TimeZone.getTimeZone("UTC"))
-        return df.format(new Date())
-    }
-}
-
-android {
-    compileSdkVersion 26
-    buildToolsVersion "27.0.1"
-    publishNonDefault true
-
-    defaultConfig {
-        applicationId "eu.kanade.tachiyomi"
-        minSdkVersion 16
-        targetSdkVersion 26
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
-        versionCode 29
-        versionName "0.6.6"
-
-        buildConfigField "String", "COMMIT_COUNT", "\"${getCommitCount()}\""
-        buildConfigField "String", "COMMIT_SHA", "\"${getGitSha()}\""
-        buildConfigField "String", "BUILD_TIME", "\"${getBuildTime()}\""
-        buildConfigField "boolean", "INCLUDE_UPDATER", "false"
-
-        vectorDrawables.useSupportLibrary = true
-
-        ndk {
-            abiFilters "armeabi-v7a", "arm64-v8a", "x86"
-        }
-    }
-
-    buildTypes {
-        debug {
-            versionNameSuffix "-${getCommitCount()}"
-            applicationIdSuffix ".debug"
-            multiDexEnabled true
-        }
-        release {
-            minifyEnabled true
-            shrinkResources true
-            multiDexEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
-
-    flavorDimensions "default"
-
-    productFlavors {
-        standard {
-            buildConfigField "boolean", "INCLUDE_UPDATER", "true"
-            dimension "default"
-        }
-        fdroid {
-            dimension "default"
-        }
-        dev {
-            minSdkVersion 21
-            resConfigs "en", "xxhdpi"
-            dimension "default"
-        }
-    }
-
-    packagingOptions {
-        exclude 'META-INF/DEPENDENCIES'
-        exclude 'LICENSE.txt'
-        exclude 'META-INF/LICENSE'
-        exclude 'META-INF/LICENSE.txt'
-        exclude 'META-INF/NOTICE'
-    }
-
-    lintOptions {
-        abortOnError false
-        checkReleaseBuilds false
-    }
-
-}
-
-dependencies {
-
-    // Modified dependencies
-    implementation 'com.github.inorichi:subsampling-scale-image-view:c19b883'
-    implementation 'com.github.inorichi:junrar-android:634c1f5'
-
-    // Android support library
-    final support_library_version = '27.0.2'
-    implementation "com.android.support:support-v4:$support_library_version"
-    implementation "com.android.support:appcompat-v7:$support_library_version"
-    implementation "com.android.support:cardview-v7:$support_library_version"
-    implementation "com.android.support:design:$support_library_version"
-    implementation "com.android.support:recyclerview-v7:$support_library_version"
-    implementation "com.android.support:preference-v7:$support_library_version"
-    implementation "com.android.support:support-annotations:$support_library_version"
-    implementation "com.android.support:customtabs:$support_library_version"
-
-    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
-
-    implementation 'com.android.support:multidex:1.0.2'
-
-    // ReactiveX
-    implementation 'io.reactivex:rxandroid:1.2.1'
-    implementation 'io.reactivex:rxjava:1.3.4'
-    implementation 'com.jakewharton.rxrelay:rxrelay:1.2.0'
-    implementation 'com.f2prateek.rx.preferences:rx-preferences:1.0.2'
-    implementation 'com.github.pwittchen:reactivenetwork:0.7.0'
-
-    // Network client
-    implementation "com.squareup.okhttp3:okhttp:3.9.1"
-    implementation 'com.squareup.okio:okio:1.13.0'
-
-    // REST
-    final retrofit_version = '2.3.0'
-    implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
-    implementation "com.squareup.retrofit2:converter-gson:$retrofit_version"
-    implementation "com.squareup.retrofit2:adapter-rxjava:$retrofit_version"
-
-    // JSON
-    implementation 'com.google.code.gson:gson:2.8.2'
-    implementation 'com.github.salomonbrys.kotson:kotson:2.5.0'
-
-    // YAML
-    implementation 'com.github.bmoliveira:snake-yaml:v1.18-android'
-
-    // JavaScript engine
-    implementation 'com.squareup.duktape:duktape-android:1.2.0'
-
-    // Disk
-    implementation 'com.jakewharton:disklrucache:2.0.2'
-    implementation 'com.github.inorichi:unifile:e9ee588'
-
-    // HTML parser
-    implementation 'org.jsoup:jsoup:1.10.2'
-
-    // Job scheduling
-    implementation 'com.evernote:android-job:1.2.1'
-    implementation 'com.google.android.gms:play-services-gcm:11.6.2'
-
-    // Changelog
-    implementation 'com.github.gabrielemariotti.changeloglib:changelog:2.1.0'
-
-    // Database
-    implementation "com.pushtorefresh.storio:sqlite:1.13.0"
-
-    // Model View Presenter
-    final nucleus_version = '3.0.0'
-    implementation "info.android15.nucleus:nucleus:$nucleus_version"
-    implementation "info.android15.nucleus:nucleus-support-v7:$nucleus_version"
-
-    // Dependency injection
-    implementation "uy.kohesive.injekt:injekt-core:1.16.1"
-
-    // Image library
-    final glide_version = '4.3.1'
-    implementation "com.github.bumptech.glide:glide:$glide_version"
-    implementation "com.github.bumptech.glide:okhttp3-integration:$glide_version"
-    kapt "com.github.bumptech.glide:compiler:$glide_version"
-
-    // Transformations
-    implementation 'jp.wasabeef:glide-transformations:3.0.1'
-
-    // Logging
-    implementation 'com.jakewharton.timber:timber:4.6.0'
-
-    // Crash reports
-    implementation 'ch.acra:acra:4.9.2'
-
-    // Sort
-    implementation 'com.github.gpanther:java-nat-sort:natural-comparator-1.1'
-
-    // UI
-    implementation 'com.dmitrymalkovich.android:material-design-dimens:1.4'
-    implementation 'com.github.dmytrodanylyk.android-process-button:library:1.0.4'
-    implementation 'eu.davidea:flexible-adapter:5.0.0-rc3'
-    implementation 'com.nononsenseapps:filepicker:2.5.2'
-    implementation 'com.github.amulyakhare:TextDrawable:558677e'
-    implementation('com.afollestad.material-dialogs:core:0.9.4.7') {
-        exclude group: "com.android.support", module: "support-v13"
-    }
-    implementation 'me.zhanghai.android.systemuihelper:library:1.0.0'
-    implementation 'com.nightlynexus.viewstatepageradapter:viewstatepageradapter:1.0.4'
-    implementation 'com.github.mthli:Slice:v1.2'
-
-    // Conductor
-    implementation "com.bluelinelabs:conductor:2.1.4"
-    implementation 'com.github.inorichi:conductor-support-preference:26.0.2'
-
-    // RxBindings
-    final rxbindings_version = '1.0.1'
-    implementation "com.jakewharton.rxbinding:rxbinding-kotlin:$rxbindings_version"
-    implementation "com.jakewharton.rxbinding:rxbinding-appcompat-v7-kotlin:$rxbindings_version"
-    implementation "com.jakewharton.rxbinding:rxbinding-support-v4-kotlin:$rxbindings_version"
-    implementation "com.jakewharton.rxbinding:rxbinding-recyclerview-v7-kotlin:$rxbindings_version"
-
-    // Tests
-    testImplementation 'junit:junit:4.12'
-    testImplementation 'org.assertj:assertj-core:1.7.1'
-    testImplementation 'org.mockito:mockito-core:1.10.19'
-
-    final robolectric_version = '3.1.4'
-    testImplementation "org.robolectric:robolectric:$robolectric_version"
-    testImplementation "org.robolectric:shadows-multidex:$robolectric_version"
-    testImplementation "org.robolectric:shadows-play-services:$robolectric_version"
-
-    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-
-    final coroutines_version = '0.19.1'
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
-}
-
-buildscript {
-    ext.kotlin_version = '1.2.0'
-    repositories {
-        mavenCentral()
-    }
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-    }
-}
-
-repositories {
-    mavenCentral()
-}
-
-kotlin {
-    experimental {
-        coroutines 'enable'
-    }
-}
-androidExtensions {
-    experimental = true
-}
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@ -0,0 +1,352 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import java.io.ByteArrayOutputStream
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.TimeZone
+
+plugins {
+    id("com.android.application")
+    id("com.mikepenz.aboutlibraries.plugin")
+    kotlin("android")
+    kotlin("plugin.serialization")
+    id("com.github.zellius.shortcut-helper")
+}
+
+if (gradle.startParameter.taskRequests.toString().contains("Standard")) {
+    apply(plugin = "com.google.gms.google-services")
+}
+
+shortcutHelper.setFilePath("./shortcuts.xml")
+
+val SUPPORTED_ABIS = setOf("armeabi-v7a", "arm64-v8a", "x86")
+
+android {
+    compileSdk = AndroidConfig.compileSdk
+    ndkVersion = AndroidConfig.ndk
+
+    defaultConfig {
+        applicationId = "eu.kanade.tachiyomi"
+        minSdk = AndroidConfig.minSdk
+        targetSdk = AndroidConfig.targetSdk
+        versionCode = 73
+        versionName = "0.13.0"
+
+        buildConfigField("String", "COMMIT_COUNT", "\"${getCommitCount()}\"")
+        buildConfigField("String", "COMMIT_SHA", "\"${getGitSha()}\"")
+        buildConfigField("String", "BUILD_TIME", "\"${getBuildTime()}\"")
+        buildConfigField("boolean", "INCLUDE_UPDATER", "false")
+        buildConfigField("boolean", "PREVIEW", "false")
+
+        // Please disable ACRA or use your own instance in forked versions of the project
+        buildConfigField("String", "ACRA_URI", "\"https://tachiyomi.kanade.eu/crash_report\"")
+
+        ndk {
+            abiFilters += SUPPORTED_ABIS
+        }
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    splits {
+        abi {
+            isEnable = true
+            reset()
+            include(*SUPPORTED_ABIS.toTypedArray())
+            isUniversalApk = true
+        }
+    }
+
+    buildTypes {
+        named("debug") {
+            versionNameSuffix = "-${getCommitCount()}"
+            applicationIdSuffix = ".debug"
+        }
+        named("release") {
+            isShrinkResources = true
+            isMinifyEnabled = true
+            proguardFiles("proguard-android-optimize.txt", "proguard-rules.pro")
+        }
+        create("preview") {
+            initWith(getByName("release"))
+            buildConfigField("boolean", "PREVIEW", "true")
+
+            val debugType = getByName("debug")
+            signingConfig = debugType.signingConfig
+            versionNameSuffix = debugType.versionNameSuffix
+            applicationIdSuffix = debugType.applicationIdSuffix
+        }
+    }
+
+    sourceSets {
+        getByName("preview").res.srcDirs("src/debug/res")
+    }
+
+    flavorDimensions.add("default")
+
+    productFlavors {
+        create("standard") {
+            buildConfigField("boolean", "INCLUDE_UPDATER", "true")
+            dimension = "default"
+        }
+        create("dev") {
+            resourceConfigurations.addAll(listOf("en", "xxhdpi"))
+            dimension = "default"
+        }
+    }
+
+    packagingOptions {
+        resources.excludes.addAll(listOf(
+            "META-INF/DEPENDENCIES",
+            "LICENSE.txt",
+            "META-INF/LICENSE",
+            "META-INF/LICENSE.txt",
+            "META-INF/README.md",
+            "META-INF/NOTICE",
+            "META-INF/*.kotlin_module",
+            "META-INF/*.version",
+        ))
+    }
+
+    dependenciesInfo {
+        includeInApk = false
+    }
+
+    buildFeatures {
+        viewBinding = true
+
+        // Disable some unused things
+        aidl = false
+        renderScript = false
+        shaders = false
+    }
+
+    lint {
+        disable.addAll(listOf("MissingTranslation", "ExtraTranslation"))
+        abortOnError = false
+        checkReleaseBuilds = false
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
+}
+
+dependencies {
+    implementation(kotlin("reflect", version = BuildPluginsVersion.KOTLIN))
+
+    val coroutinesVersion = "1.6.0"
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutinesVersion")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutinesVersion")
+
+    // Source models and interfaces from Tachiyomi 1.x
+    implementation("org.tachiyomi:source-api:1.1")
+
+    // AndroidX libraries
+    implementation("androidx.annotation:annotation:1.4.0-alpha01")
+    implementation("androidx.appcompat:appcompat:1.4.1")
+    implementation("androidx.biometric:biometric-ktx:1.2.0-alpha04")
+    implementation("androidx.browser:browser:1.4.0")
+    implementation("androidx.constraintlayout:constraintlayout:2.1.3")
+    implementation("androidx.coordinatorlayout:coordinatorlayout:1.2.0")
+    implementation("androidx.core:core-ktx:1.8.0-alpha02")
+    implementation("androidx.core:core-splashscreen:1.0.0-alpha02")
+    implementation("androidx.recyclerview:recyclerview:1.3.0-alpha01")
+    implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.2.0-alpha01")
+    implementation("androidx.viewpager:viewpager:1.1.0-alpha01")
+
+    val lifecycleVersion = "2.4.0"
+    implementation("androidx.lifecycle:lifecycle-common:$lifecycleVersion")
+    implementation("androidx.lifecycle:lifecycle-process:$lifecycleVersion")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:$lifecycleVersion")
+
+    // Job scheduling
+    implementation("androidx.work:work-runtime-ktx:2.6.0")
+
+    // RX
+    implementation("io.reactivex:rxandroid:1.2.1")
+    implementation("io.reactivex:rxjava:1.3.8")
+    implementation("com.jakewharton.rxrelay:rxrelay:1.2.0")
+    implementation("ru.beryukhov:flowreactivenetwork:1.0.4")
+
+    // Network client
+    val okhttpVersion = "4.9.1"
+    implementation("com.squareup.okhttp3:okhttp:$okhttpVersion")
+    implementation("com.squareup.okhttp3:logging-interceptor:$okhttpVersion")
+    implementation("com.squareup.okhttp3:okhttp-dnsoverhttps:$okhttpVersion")
+    implementation("com.squareup.okio:okio:3.0.0")
+
+    // TLS 1.3 support for Android < 10
+    implementation("org.conscrypt:conscrypt-android:2.5.2")
+
+    // Data serialization (JSON, protobuf)
+    val kotlinSerializationVersion = "1.3.2"
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:$kotlinSerializationVersion")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-protobuf:$kotlinSerializationVersion")
+
+    // JavaScript engine
+    implementation("app.cash.quickjs:quickjs-android:0.9.2")
+    // TODO: remove Duktape once all extensions are using QuickJS
+    implementation("com.squareup.duktape:duktape-android:1.4.0")
+
+    // HTML parser
+    implementation("org.jsoup:jsoup:1.14.3")
+
+    // Disk
+    implementation("com.jakewharton:disklrucache:2.0.2")
+    implementation("com.github.tachiyomiorg:unifile:17bec43")
+    implementation("com.github.junrar:junrar:7.4.0")
+
+    // Database
+    implementation("androidx.sqlite:sqlite-ktx:2.2.0")
+    implementation("com.github.inorichi.storio:storio-common:8be19de@aar")
+    implementation("com.github.inorichi.storio:storio-sqlite:8be19de@aar")
+    implementation("com.github.requery:sqlite-android:3.36.0")
+
+    // Preferences
+    implementation("androidx.preference:preference-ktx:1.2.0-rc01")
+    implementation("com.github.tfcporciuncula.flow-preferences:flow-preferences:1.4.0")
+
+    // Model View Presenter
+    val nucleusVersion = "3.0.0"
+    implementation("info.android15.nucleus:nucleus:$nucleusVersion")
+    implementation("info.android15.nucleus:nucleus-support-v7:$nucleusVersion")
+
+    // Dependency injection
+    implementation("com.github.inorichi.injekt:injekt-core:65b0440")
+
+    // Image loading
+    val coilVersion = "1.4.0"
+    implementation("io.coil-kt:coil:$coilVersion")
+    implementation("io.coil-kt:coil-gif:$coilVersion")
+
+    implementation("com.github.tachiyomiorg:subsampling-scale-image-view:846abe0") {
+        exclude(module = "image-decoder")
+    }
+    implementation("com.github.tachiyomiorg:image-decoder:7481a4a")
+
+    // Sort
+    implementation("com.github.gpanther:java-nat-sort:natural-comparator-1.1")
+
+    // UI libraries
+    implementation("com.google.android.material:material:1.6.0-alpha02")
+    implementation("com.github.dmytrodanylyk.android-process-button:library:1.0.4")
+    implementation("com.github.arkon.FlexibleAdapter:flexible-adapter:c8013533")
+    implementation("com.github.arkon.FlexibleAdapter:flexible-adapter-ui:c8013533")
+    implementation("com.nightlynexus.viewstatepageradapter:viewstatepageradapter:1.1.0")
+    implementation("com.github.chrisbanes:PhotoView:2.3.0")
+    implementation("com.github.tachiyomiorg:DirectionalViewPager:1.0.0") {
+        exclude(group = "androidx.viewpager", module = "viewpager")
+    }
+    implementation("dev.chrisbanes.insetter:insetter:0.6.1")
+
+    // Conductor
+    val conductorVersion = "3.1.2"
+    implementation("com.bluelinelabs:conductor:$conductorVersion")
+    implementation("com.bluelinelabs:conductor-viewpager:$conductorVersion")
+    implementation("com.github.tachiyomiorg:conductor-support-preference:$conductorVersion")
+
+    // FlowBinding
+    val flowbindingVersion = "1.2.0"
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-android:$flowbindingVersion")
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-appcompat:$flowbindingVersion")
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-recyclerview:$flowbindingVersion")
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-swiperefreshlayout:$flowbindingVersion")
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-viewpager:$flowbindingVersion")
+
+    // Logging
+    implementation("com.squareup.logcat:logcat:0.1")
+
+    // Crash reports/analytics
+    implementation("ch.acra:acra-http:5.8.4")
+    "standardImplementation"("com.google.firebase:firebase-analytics-ktx:20.0.2")
+
+    // Licenses
+    implementation("com.mikepenz:aboutlibraries-core:${BuildPluginsVersion.ABOUTLIB_PLUGIN}")
+
+    // Shizuku
+    val shizukuVersion = "12.1.0"
+    implementation("dev.rikka.shizuku:api:$shizukuVersion")
+    implementation("dev.rikka.shizuku:provider:$shizukuVersion")
+
+    // Tests
+    testImplementation("junit:junit:4.13.2")
+    testImplementation("org.assertj:assertj-core:3.16.1")
+    testImplementation("org.mockito:mockito-core:1.10.19")
+
+    val robolectricVersion = "3.1.4"
+    testImplementation("org.robolectric:robolectric:$robolectricVersion")
+    testImplementation("org.robolectric:shadows-play-services:$robolectricVersion")
+
+    // For detecting memory leaks; see https://square.github.io/leakcanary/
+    // debugImplementation("com.squareup.leakcanary:leakcanary-android:2.7")
+}
+
+tasks {
+    // See https://kotlinlang.org/docs/reference/experimental.html#experimental-status-of-experimental-api(-markers)
+    withType<KotlinCompile> {
+        kotlinOptions.freeCompilerArgs += listOf(
+            "-Xopt-in=kotlin.Experimental",
+            "-Xopt-in=kotlin.RequiresOptIn",
+            "-Xopt-in=kotlin.ExperimentalStdlibApi",
+            "-Xopt-in=kotlinx.coroutines.FlowPreview",
+            "-Xopt-in=kotlinx.coroutines.ExperimentalCoroutinesApi",
+            "-Xopt-in=kotlinx.coroutines.InternalCoroutinesApi",
+            "-Xopt-in=kotlinx.serialization.ExperimentalSerializationApi",
+            "-Xopt-in=coil.annotation.ExperimentalCoilApi",
+        )
+    }
+
+    // Duplicating Hebrew string assets due to some locale code issues on different devices
+    val copyHebrewStrings = task("copyHebrewStrings", type = Copy::class) {
+        from("./src/main/res/values-he")
+        into("./src/main/res/values-iw")
+        include("**/*")
+    }
+
+    preBuild {
+        dependsOn(formatKotlin, copyHebrewStrings)
+    }
+}
+
+
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath(kotlin("gradle-plugin", version = BuildPluginsVersion.KOTLIN))
+    }
+}
+
+
+// Git is needed in your system PATH for these commands to work.
+// If it's not installed, you can return a random value as a workaround
+fun getCommitCount(): String {
+    return runCommand("git rev-list --count HEAD")
+    // return "1"
+}
+
+fun getGitSha(): String {
+    return runCommand("git rev-parse --short HEAD")
+    // return "1"
+}
+
+fun getBuildTime(): String {
+    val df = SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'")
+    df.timeZone = TimeZone.getTimeZone("UTC")
+    return df.format(Date())
+}
+
+fun runCommand(command: String): String {
+    val byteOut = ByteArrayOutputStream()
+    project.exec {
+        commandLine = command.split(" ")
+        standardOutput = byteOut
+    }
+    return String(byteOut.toByteArray()).trim()
+}
--- a/app/proguard-android-optimize.txt
+++ b/app/proguard-android-optimize.txt
@ -0,0 +1,34 @@
+-allowaccessmodification
+-dontusemixedcaseclassnames
+-verbose
+
+-keepattributes *Annotation*
+
+-keepclasseswithmembernames,includedescriptorclasses class * {
+    native <methods>;
+}
+
+-keepclassmembers enum * {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
+
+-keepclassmembers class * implements android.os.Parcelable {
+  public static final ** CREATOR;
+}
+
+-keep class androidx.annotation.Keep
+
+-keep @androidx.annotation.Keep class * {*;}
+
+-keepclasseswithmembers class * {
+    @androidx.annotation.Keep <methods>;
+}
+
+-keepclasseswithmembers class * {
+    @androidx.annotation.Keep <fields>;
+}
+
+-keepclasseswithmembers class * {
+    @androidx.annotation.Keep <init>(...);
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@ -1,36 +1,21 @@
 -dontobfuscate

-dontwarn eu.kanade.tachiyomi.**
-keep class eu.kanade.tachiyomi.**
-keep class eu.kanade.tachiyomi.source.model.** { *; }
+# Keep extension's common dependencies
+-keep,allowoptimization class eu.kanade.tachiyomi.** { public protected *; }
+-keep,allowoptimization class androidx.preference.** { *; }
+-keep,allowoptimization class kotlin.** { public protected *; }
+-keep,allowoptimization class kotlinx.coroutines.** { public protected *; }
+-keep,allowoptimization class okhttp3.** { public protected *; }
+-keep,allowoptimization class okio.** { public protected *; }
+-keep,allowoptimization class rx.** { public protected *; }
+-keep,allowoptimization class org.jsoup.** { public protected *; }
+-keep,allowoptimization class com.google.gson.** { public protected *; }
+-keep,allowoptimization class com.github.salomonbrys.kotson.** { public protected *; }
+-keep,allowoptimization class com.squareup.duktape.** { public protected *; }
+-keep,allowoptimization class app.cash.quickjs.** { public protected *; }
+-keep,allowoptimization class uy.kohesive.injekt.** { public protected *; }

-keep class com.hippo.image.** { *; }
-keep interface com.hippo.image.** { *; }
-dontwarn nucleus.view.NucleusActionBarActivity
-
-# Extensions may require methods unused in the core app
-keep class org.jsoup.** { *; }
-keep class kotlin.** { *; }
-keep class okhttp3.** { *; }
-keep class com.google.gson.** { *; }
-keep class com.github.salomonbrys.kotson.** { *; }
-
-# OkHttp
-dontwarn okhttp3.**
-dontwarn okio.**
-dontwarn javax.annotation.**
-dontwarn retrofit2.Platform$Java8
-
-# Glide specific rules #
-# https://github.com/bumptech/glide
-keep public class * implements com.bumptech.glide.module.GlideModule
-keep public class * extends com.bumptech.glide.AppGlideModule
-keep public enum com.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** {
-    **[] $VALUES;
-    public *;
-}
-
-# RxJava 1.1.0
+##---------------Begin: proguard configuration for RxJava 1.x  ----------
 -dontwarn sun.misc.**

 -keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* {
@ -46,47 +31,55 @@
    rx.internal.util.atomic.LinkedQueueNode consumerNode;
 }

-### Support v7, Design
-# http://stackoverflow.com/questions/29679177/cardview-shadow-not-appearing-in-lollipop-after-obfuscate-with-proguard/29698051
-keep class android.support.v7.widget.RoundRectDrawable { *; }
-
-keep public class android.support.v7.widget.** { *; }
-keep public class android.support.v7.internal.widget.** { *; }
-keep public class android.support.v7.internal.view.menu.** { *; }
-keep public class android.support.v7.graphics.drawable.** { *; }
-
-keep public class * extends android.support.v4.view.ActionProvider {
-    public <init>(android.content.Context);
-}
-
-dontwarn android.support.**
-dontwarn android.support.design.**
-keep class android.support.design.** { *; }
-keep interface android.support.design.** { *; }
-keep public class android.support.design.R$* { *; }
-
-
-# ReactiveNetwork
-dontwarn com.github.pwittchen.reactivenetwork.**
-
-## GSON ##
+-dontnote rx.internal.util.PlatformDependent
+##---------------End: proguard configuration for RxJava 1.x  ----------

+##---------------Begin: proguard configuration for Gson  ----------
 # Gson uses generic type information stored in a class file when working with fields. Proguard
 # removes such information by default, so configure it to keep all of it.
 -keepattributes Signature

-# Gson specific classes
-keep class sun.misc.Unsafe { *; }
+# For using GSON @Expose annotation
+-keepattributes *Annotation*

-# Prevent proguard from stripping interface information from TypeAdapterFactory,
+# Gson specific classes
+-dontwarn sun.misc.**
+
+# Prevent proguard from stripping interface information from TypeAdapter, TypeAdapterFactory,
 # JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
+-keep class * extends com.google.gson.TypeAdapter
 -keep class * implements com.google.gson.TypeAdapterFactory
 -keep class * implements com.google.gson.JsonSerializer
 -keep class * implements com.google.gson.JsonDeserializer

-# SnakeYaml
-keep class org.yaml.snakeyaml.** { public protected private *; }
-dontwarn org.yaml.snakeyaml.**
+# Prevent R8 from leaving Data object members always null
+-keepclassmembers,allowobfuscation class * {
+  @com.google.gson.annotations.SerializedName <fields>;
+}
+##---------------End: proguard configuration for Gson  ----------

-# Duktape
-keep class com.squareup.duktape.** { *; }
+##---------------Begin: proguard configuration for kotlinx.serialization  ----------
+-keepattributes *Annotation*, InnerClasses
+-dontnote kotlinx.serialization.AnnotationsKt # core serialization annotations
+
+# kotlinx-serialization-json specific. Add this if you have java.lang.NoClassDefFoundError kotlinx.serialization.json.JsonObjectSerializer
+-keepclassmembers class kotlinx.serialization.json.** {
+    *** Companion;
+}
+-keepclasseswithmembers class kotlinx.serialization.json.** {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+-keep,includedescriptorclasses class eu.kanade.tachiyomi.**$$serializer { *; }
+-keepclassmembers class eu.kanade.tachiyomi.** {
+    *** Companion;
+}
+-keepclasseswithmembers class eu.kanade.tachiyomi.** {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+-keep class kotlinx.serialization.**
+-keepclassmembers class kotlinx.serialization.** {
+    <methods>;
+}
+##---------------End: proguard configuration for kotlinx.serialization  ----------
--- a/app/shortcuts.xml
+++ b/app/shortcuts.xml
@ -2,7 +2,7 @@

    <shortcut
        android:enabled="true"
-        android:icon="@drawable/sc_book_48dp"
+        android:icon="@drawable/sc_collections_bookmark_48dp"
        android:shortcutDisabledMessage="@string/app_not_available"
        android:shortcutId="show_library"
        android:shortcutLongLabel="@string/label_library"
@ -13,18 +13,18 @@
    </shortcut>
    <shortcut
        android:enabled="true"
-        android:icon="@drawable/sc_update_48dp"
+        android:icon="@drawable/sc_new_releases_48dp"
        android:shortcutDisabledMessage="@string/app_not_available"
        android:shortcutId="show_recently_updated"
        android:shortcutLongLabel="@string/label_recent_updates"
-        android:shortcutShortLabel="@string/short_recent_updates">
+        android:shortcutShortLabel="@string/label_recent_updates">
        <intent
            android:action="eu.kanade.tachiyomi.SHOW_RECENTLY_UPDATED"
            android:targetClass="eu.kanade.tachiyomi.ui.main.MainActivity" />
    </shortcut>
    <shortcut
        android:enabled="true"
-        android:icon="@drawable/sc_glasses_48dp"
+        android:icon="@drawable/sc_history_48dp"
        android:shortcutDisabledMessage="@string/app_not_available"
        android:shortcutId="show_recently_read"
        android:shortcutLongLabel="@string/label_recent_manga"
@ -38,8 +38,8 @@
        android:icon="@drawable/sc_explore_48dp"
        android:shortcutDisabledMessage="@string/app_not_available"
        android:shortcutId="show_catalogues"
-        android:shortcutLongLabel="@string/label_catalogues"
-        android:shortcutShortLabel="@string/label_catalogues">
+        android:shortcutLongLabel="@string/browse"
+        android:shortcutShortLabel="@string/browse">
        <intent
            android:action="eu.kanade.tachiyomi.SHOW_CATALOGUES"
            android:targetClass="eu.kanade.tachiyomi.ui.main.MainActivity" />
--- a/app/src/debug/res/drawable/ic_launcher_foreground.xml
+++ b/app/src/debug/res/drawable/ic_launcher_foreground.xml
@ -0,0 +1,27 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108.0"
+    android:viewportHeight="108.0">
+    <path
+        android:pathData="M14.5,7L86.5,7A7,7 0,0 1,93.5 14L93.5,95A7,7 0,0 1,86.5 102L14.5,102A7,7 0,0 1,7.5 95L7.5,14A7,7 0,0 1,14.5 7z"
+        android:fillColor="#000"/>
+    <path
+        android:pathData="M14.5,7L86.5,7A7,7 0,0 1,93.5 14L93.5,95A7,7 0,0 1,86.5 102L14.5,102A7,7 0,0 1,7.5 95L7.5,14A7,7 0,0 1,14.5 7z"
+        android:fillColor="#455A64"/>
+    <path
+        android:pathData="M7.5,12.01C7.5,9.24 9.74,7 12.5,7L17.5,7L17.5,102L12.5,102C9.74,102 7.5,99.77 7.5,96.99L7.5,12.01Z"
+        android:fillColor="#607D8B"/>
+    <path
+        android:pathData="M54,54.5m-25.5,0a25.5,25.5 0,1 1,51 0a25.5,25.5 0,1 1,-51 0"
+        android:fillColor="#000"/>
+    <path
+        android:pathData="M54,54.5m-25.5,0a25.5,25.5 0,1 1,51 0a25.5,25.5 0,1 1,-51 0"
+        android:fillColor="#CE2828"/>
+    <path
+        android:pathData="M54,54.5m-19.94,0a19.94,19.94 0,1 1,39.87 0a19.94,19.94 0,1 1,-39.87 0"
+        android:fillColor="#FFF"/>
+    <path
+        android:pathData="M52.04,46.3L47.42,46.3C46.14,46.3 44.93,46.23 44.2,46.14L44.2,49.76C45,49.65 46.16,49.6 47.42,49.6L60.58,49.6C61.86,49.6 63.02,49.65 63.82,49.76L63.82,46.14C63.09,46.23 61.86,46.3 60.58,46.3L55.69,46.3L55.69,45.07C55.69,44.43 55.73,43.95 55.82,43.45L51.9,43.45C51.99,44 52.04,44.43 52.04,45.07L52.04,46.3ZM46.78,60.68C45.46,60.68 44.29,60.63 43.45,60.52L43.45,64.14C44.34,64.03 45.46,63.98 46.78,63.98L61.29,63.98C62.57,63.98 63.71,64.03 64.57,64.14L64.57,60.52C63.73,60.63 62.57,60.68 61.29,60.68L58.24,60.68C59.33,58.06 59.99,56.23 60.7,53.91C61.34,51.81 61.34,51.81 61.56,51.13L57.58,50.06C57.51,50.93 57.37,51.52 56.89,53.41C56.19,56.14 55.32,58.74 54.5,60.68L46.78,60.68ZM46.48,51.36C47.55,54.02 48.28,56.53 49.03,60.15L52.66,58.9C51.65,54.98 50.92,52.66 49.94,50.11L46.48,51.36Z"
+        android:fillColor="#000"/>
+</vector>
--- a/app/src/debug/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/debug/res/mipmap-anydpi-v26/ic_launcher.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@android:color/transparent"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>
--- a/app/src/debug/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/debug/res/mipmap-anydpi-v26/ic_launcher_round.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@android:color/transparent"/>
+    <foreground android:drawable="@drawable/ic_launcher_foreground"/>
+</adaptive-icon>
--- a/app/src/debug/res/mipmap-hdpi/ic_launcher.png
+++ b/app/src/debug/res/mipmap-hdpi/ic_launcher.png
--- a/app/src/debug/res/mipmap-hdpi/ic_launcher_round.png
+++ b/app/src/debug/res/mipmap-hdpi/ic_launcher_round.png
--- a/app/src/debug/res/mipmap-mdpi/ic_launcher.png
+++ b/app/src/debug/res/mipmap-mdpi/ic_launcher.png
--- a/app/src/debug/res/mipmap-mdpi/ic_launcher_round.png
+++ b/app/src/debug/res/mipmap-mdpi/ic_launcher_round.png
--- a/app/src/debug/res/mipmap-xhdpi/ic_launcher.png
+++ b/app/src/debug/res/mipmap-xhdpi/ic_launcher.png
--- a/app/src/debug/res/mipmap-xhdpi/ic_launcher_round.png
+++ b/app/src/debug/res/mipmap-xhdpi/ic_launcher_round.png
--- a/app/src/debug/res/mipmap-xxhdpi/ic_launcher.png
+++ b/app/src/debug/res/mipmap-xxhdpi/ic_launcher.png
--- a/app/src/debug/res/mipmap-xxhdpi/ic_launcher_round.png
+++ b/app/src/debug/res/mipmap-xxhdpi/ic_launcher_round.png
--- a/app/src/debug/res/mipmap-xxxhdpi/ic_launcher.png
+++ b/app/src/debug/res/mipmap-xxxhdpi/ic_launcher.png
--- a/app/src/debug/res/mipmap-xxxhdpi/ic_launcher_round.png
+++ b/app/src/debug/res/mipmap-xxxhdpi/ic_launcher_round.png
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -2,45 +2,112 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="eu.kanade.tachiyomi">

+    <!-- Internet -->
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+
+    <!-- Storage -->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+    <!-- For background jobs -->
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
-    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS" />
+
+    <!-- For managing extensions -->
    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
-    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
+    <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />
+    <uses-permission android:name="android.permission.UPDATE_PACKAGES_WITHOUT_USER_ACTION" />
+    <!-- To view extension packages in API 30+ -->
+    <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES" />

    <application
        android:name=".App"
-        android:allowBackup="true"
+        android:allowBackup="false"
        android:hardwareAccelerated="true"
+        android:hasFragileUserData="true"
        android:icon="@mipmap/ic_launcher"
-        android:roundIcon="@mipmap/ic_launcher_round"
        android:label="@string/app_name"
        android:largeHeap="true"
-        android:theme="@style/Theme.Tachiyomi">
+        android:requestLegacyExternalStorage="true"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:theme="@style/Theme.Tachiyomi"
+        android:supportsRtl="true"
+        android:networkSecurityConfig="@xml/network_security_config">
+
        <activity
            android:name=".ui.main.MainActivity"
-            android:launchMode="singleTop">
+            android:launchMode="singleTop"
+            android:theme="@style/Theme.Tachiyomi.SplashScreen"
+            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
-
            <!--suppress AndroidDomInspection -->
-            <meta-data android:name="android.app.shortcuts" android:resource="@xml/shortcuts"/>
+            <meta-data
+                android:name="android.app.shortcuts"
+                android:resource="@xml/shortcuts" />
        </activity>
+        <activity
+            android:name=".ui.main.DeepLinkActivity"
+            android:launchMode="singleTask"
+            android:theme="@android:style/Theme.NoDisplay"
+            android:label="@string/action_global_search"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.SEARCH" />
+                <action android:name="com.google.android.gms.actions.SEARCH_ACTION" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="eu.kanade.tachiyomi.SEARCH" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.SEND" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="text/plain" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.app.searchable"
+                android:resource="@xml/searchable" />
+        </activity>
+
        <activity
            android:name=".ui.reader.ReaderActivity"
-            android:theme="@style/Theme.Reader" />
+            android:launchMode="singleTask"
+            android:exported="false">
+            <intent-filter>
+                <action android:name="com.samsung.android.support.REMOTE_ACTION" />
+            </intent-filter>
+
+            <meta-data android:name="com.samsung.android.support.REMOTE_ACTION"
+                android:resource="@xml/s_pen_actions"/>
+        </activity>
+
        <activity
-            android:name=".widget.CustomLayoutPickerActivity"
-            android:label="@string/app_name"
-            android:theme="@style/FilePickerTheme" />
+            android:name=".ui.security.UnlockActivity"
+            android:theme="@style/Theme.Tachiyomi"
+            android:exported="false" />
+
        <activity
-            android:name=".ui.setting.AnilistLoginActivity"
-            android:label="Anilist">
+            android:name=".ui.webview.WebViewActivity"
+            android:configChanges="uiMode|orientation|screenSize"
+            android:exported="false" />
+
+        <activity
+            android:name=".extension.util.ExtensionInstallActivity"
+            android:theme="@android:style/Theme.Translucent.NoTitleBar"
+            android:exported="false" />
+
+        <activity
+            android:name=".ui.setting.track.AnilistLoginActivity"
+            android:label="Anilist"
+            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

@ -52,26 +119,51 @@
                    android:scheme="tachiyomi" />
            </intent-filter>
        </activity>
+        <activity
+            android:name=".ui.setting.track.MyAnimeListLoginActivity"
+            android:label="MyAnimeList"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />

-        <provider
-            android:name="android.support.v4.content.FileProvider"
-            android:authorities="${applicationId}.provider"
-            android:exported="false"
-            android:grantUriPermissions="true">
-            <meta-data
-                android:name="android.support.FILE_PROVIDER_PATHS"
-                android:resource="@xml/provider_paths" />
-        </provider>
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />

-        <provider
-            android:name="eu.kanade.tachiyomi.util.ZipContentProvider"
-            android:authorities="${applicationId}.zip-provider"
-            android:exported="false" />
+                <data
+                    android:host="myanimelist-auth"
+                    android:scheme="tachiyomi" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".ui.setting.track.ShikimoriLoginActivity"
+            android:label="Shikimori"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />

-        <provider
-            android:name="eu.kanade.tachiyomi.util.RarContentProvider"
-            android:authorities="${applicationId}.rar-provider"
-            android:exported="false" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="shikimori-auth"
+                    android:scheme="tachiyomi" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".ui.setting.track.BangumiLoginActivity"
+            android:label="Bangumi"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="bangumi-auth"
+                    android:scheme="tachiyomi" />
+            </intent-filter>
+        </activity>

        <receiver
            android:name=".data.notification.NotificationReceiver"
@ -86,16 +178,42 @@
            android:exported="false" />

        <service
-            android:name=".data.updater.UpdateDownloaderService"
+            android:name=".data.updater.AppUpdateService"
            android:exported="false" />

        <service
            android:name=".data.backup.BackupCreateService"
-            android:exported="false"/>
+            android:exported="false" />

        <service
            android:name=".data.backup.BackupRestoreService"
-            android:exported="false"/>
+            android:exported="false" />
+
+        <service android:name=".extension.util.ExtensionInstallService"
+            android:exported="false" />
+
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.provider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/provider_paths" />
+        </provider>
+
+        <provider
+            android:name="rikka.shizuku.ShizukuProvider"
+            android:authorities="${applicationId}.shizuku"
+            android:multiprocess="false"
+            android:enabled="true"
+            android:exported="true"
+            android:permission="android.permission.INTERACT_ACROSS_USERS_FULL" />
+
+        <meta-data android:name="android.webkit.WebView.EnableSafeBrowsing"
+            android:value="false" />
+        <meta-data android:name="android.webkit.WebView.MetricsOptOut"
+            android:value="true" />

    </application>

--- a/app/src/main/assets/fonts/PTSans-Narrow.ttf
+++ b/app/src/main/assets/fonts/PTSans-Narrow.ttf
--- a/app/src/main/assets/fonts/PTSans-NarrowBold.ttf
+++ b/app/src/main/assets/fonts/PTSans-NarrowBold.ttf
--- a/app/src/main/ic_launcher-web.png
+++ b/app/src/main/ic_launcher-web.png
--- a/app/src/main/java/eu/kanade/tachiyomi/App.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/App.kt
@ -1,74 +1,192 @@
 package eu.kanade.tachiyomi

+import android.app.ActivityManager
 import android.app.Application
+import android.app.PendingIntent
+import android.content.BroadcastReceiver
 import android.content.Context
-import android.content.res.Configuration
-import android.support.multidex.MultiDex
-import com.evernote.android.job.JobManager
-import eu.kanade.tachiyomi.data.backup.BackupCreatorJob
-import eu.kanade.tachiyomi.data.library.LibraryUpdateJob
+import android.content.Intent
+import android.content.IntentFilter
+import android.os.Build
+import android.webkit.WebView
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.core.app.NotificationManagerCompat
+import androidx.core.content.getSystemService
+import androidx.lifecycle.DefaultLifecycleObserver
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.ProcessLifecycleOwner
+import androidx.lifecycle.lifecycleScope
+import coil.ImageLoader
+import coil.ImageLoaderFactory
+import coil.decode.GifDecoder
+import coil.decode.ImageDecoderDecoder
+import coil.util.DebugLogger
+import eu.kanade.tachiyomi.data.coil.ByteBufferFetcher
+import eu.kanade.tachiyomi.data.coil.MangaCoverFetcher
+import eu.kanade.tachiyomi.data.coil.TachiyomiImageDecoder
 import eu.kanade.tachiyomi.data.notification.Notifications
-import eu.kanade.tachiyomi.data.updater.UpdateCheckerJob
-import eu.kanade.tachiyomi.util.LocaleHelper
-import org.acra.ACRA
-import org.acra.annotation.ReportsCrashes
-import timber.log.Timber
+import eu.kanade.tachiyomi.data.preference.PreferenceValues
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.network.NetworkHelper
+import eu.kanade.tachiyomi.ui.security.SecureActivityDelegate
+import eu.kanade.tachiyomi.util.preference.asImmediateFlow
+import eu.kanade.tachiyomi.util.system.AuthenticatorUtil
+import eu.kanade.tachiyomi.util.system.animatorDurationScale
+import eu.kanade.tachiyomi.util.system.logcat
+import eu.kanade.tachiyomi.util.system.notification
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import logcat.AndroidLogcatLogger
+import logcat.LogPriority
+import logcat.LogcatLogger
+import org.acra.config.httpSender
+import org.acra.ktx.initAcra
+import org.acra.sender.HttpSender
+import org.conscrypt.Conscrypt
 import uy.kohesive.injekt.Injekt
-import uy.kohesive.injekt.api.InjektScope
-import uy.kohesive.injekt.registry.default.DefaultRegistrar
+import uy.kohesive.injekt.api.get
+import uy.kohesive.injekt.injectLazy
+import java.security.Security

-@ReportsCrashes(
-        formUri = "http://tachiyomi.kanade.eu/crash_report",
-        reportType = org.acra.sender.HttpSender.Type.JSON,
-        httpMethod = org.acra.sender.HttpSender.Method.PUT,
-        buildConfigClass = BuildConfig::class,
-        excludeMatchingSharedPreferencesKeys = arrayOf(".*username.*", ".*password.*", ".*token.*")
-)
-open class App : Application() {
+open class App : Application(), DefaultLifecycleObserver, ImageLoaderFactory {
+
+    private val preferences: PreferencesHelper by injectLazy()
+
+    private val disableIncognitoReceiver = DisableIncognitoReceiver()

    override fun onCreate() {
-        super.onCreate()
-        Injekt = InjektScope(DefaultRegistrar())
+        super<Application>.onCreate()
+
+        // TLS 1.3 support for Android < 10
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
+            Security.insertProviderAt(Conscrypt.newProvider(), 1)
+        }
+
+        // Avoid potential crashes
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+            val process = getProcessName()
+            if (packageName != process) WebView.setDataDirectorySuffix(process)
+        }
+
        Injekt.importModule(AppModule(this))

-        if (BuildConfig.DEBUG) Timber.plant(Timber.DebugTree())
-
        setupAcra()
-        setupJobManager()
        setupNotificationChannels()

-        LocaleHelper.updateConfiguration(this, resources.configuration)
-    }
+        ProcessLifecycleOwner.get().lifecycle.addObserver(this)

-    override fun attachBaseContext(base: Context) {
-        super.attachBaseContext(base)
-        if (BuildConfig.DEBUG) {
-            MultiDex.install(this)
+        // Show notification to disable Incognito Mode when it's enabled
+        preferences.incognitoMode().asFlow()
+            .onEach { enabled ->
+                val notificationManager = NotificationManagerCompat.from(this)
+                if (enabled) {
+                    disableIncognitoReceiver.register()
+                    val notification = notification(Notifications.CHANNEL_INCOGNITO_MODE) {
+                        setContentTitle(getString(R.string.pref_incognito_mode))
+                        setContentText(getString(R.string.notification_incognito_text))
+                        setSmallIcon(R.drawable.ic_glasses_24dp)
+                        setOngoing(true)
+
+                        val pendingIntent = PendingIntent.getBroadcast(
+                            this@App,
+                            0,
+                            Intent(ACTION_DISABLE_INCOGNITO_MODE),
+                            PendingIntent.FLAG_ONE_SHOT
+                        )
+                        setContentIntent(pendingIntent)
+                    }
+                    notificationManager.notify(Notifications.ID_INCOGNITO_MODE, notification)
+                } else {
+                    disableIncognitoReceiver.unregister()
+                    notificationManager.cancel(Notifications.ID_INCOGNITO_MODE)
+                }
+            }
+            .launchIn(ProcessLifecycleOwner.get().lifecycleScope)
+
+        preferences.themeMode()
+            .asImmediateFlow {
+                AppCompatDelegate.setDefaultNightMode(
+                    when (it) {
+                        PreferenceValues.ThemeMode.light -> AppCompatDelegate.MODE_NIGHT_NO
+                        PreferenceValues.ThemeMode.dark -> AppCompatDelegate.MODE_NIGHT_YES
+                        PreferenceValues.ThemeMode.system -> AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
+                    }
+                )
+            }.launchIn(ProcessLifecycleOwner.get().lifecycleScope)
+
+        if (!LogcatLogger.isInstalled && preferences.verboseLogging()) {
+            LogcatLogger.install(AndroidLogcatLogger(LogPriority.VERBOSE))
        }
    }

-    override fun onConfigurationChanged(newConfig: Configuration) {
-        super.onConfigurationChanged(newConfig)
-        LocaleHelper.updateConfiguration(this, newConfig, true)
+    override fun newImageLoader(): ImageLoader {
+        return ImageLoader.Builder(this).apply {
+            componentRegistry {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+                    add(ImageDecoderDecoder(this@App))
+                } else {
+                    add(GifDecoder())
+                }
+                add(TachiyomiImageDecoder(this@App.resources))
+                add(ByteBufferFetcher())
+                add(MangaCoverFetcher())
+            }
+            okHttpClient(Injekt.get<NetworkHelper>().coilClient)
+            crossfade((300 * this@App.animatorDurationScale).toInt())
+            allowRgb565(getSystemService<ActivityManager>()!!.isLowRamDevice)
+            if (preferences.verboseLogging()) logger(DebugLogger())
+        }.build()
+    }
+
+    override fun onStop(owner: LifecycleOwner) {
+        if (!AuthenticatorUtil.isAuthenticating && preferences.lockAppAfter().get() >= 0) {
+            SecureActivityDelegate.locked = true
+        }
    }

    protected open fun setupAcra() {
-        ACRA.init(this)
-    }
+        if (BuildConfig.FLAVOR != "dev") {
+            initAcra {
+                buildConfigClass = BuildConfig::class.java
+                excludeMatchingSharedPreferencesKeys = arrayOf(".*username.*", ".*password.*", ".*token.*")

-    protected open fun setupJobManager() {
-        JobManager.create(this).addJobCreator { tag ->
-            when (tag) {
-                LibraryUpdateJob.TAG -> LibraryUpdateJob()
-                UpdateCheckerJob.TAG -> UpdateCheckerJob()
-                BackupCreatorJob.TAG -> BackupCreatorJob()
-                else -> null
+                httpSender {
+                    uri = BuildConfig.ACRA_URI
+                    httpMethod = HttpSender.Method.PUT
+                }
            }
        }
    }

    protected open fun setupNotificationChannels() {
-        Notifications.createChannels(this)
+        try {
+            Notifications.createChannels(this)
+        } catch (e: Exception) {
+            logcat(LogPriority.ERROR, e) { "Failed to modify notification channels" }
+        }
    }

+    private inner class DisableIncognitoReceiver : BroadcastReceiver() {
+        private var registered = false
+
+        override fun onReceive(context: Context, intent: Intent) {
+            preferences.incognitoMode().set(false)
+        }
+
+        fun register() {
+            if (!registered) {
+                registerReceiver(this, IntentFilter(ACTION_DISABLE_INCOGNITO_MODE))
+                registered = true
+            }
+        }
+
+        fun unregister() {
+            if (registered) {
+                unregisterReceiver(this)
+                registered = false
+            }
+        }
+    }
 }
+
+private const val ACTION_DISABLE_INCOGNITO_MODE = "tachi.action.DISABLE_INCOGNITO_MODE"
--- a/app/src/main/java/eu/kanade/tachiyomi/AppInfo.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/AppInfo.kt
@ -0,0 +1,11 @@
+package eu.kanade.tachiyomi
+
+/**
+ * Used by extensions.
+ *
+ * @since extension-lib 1.3
+ */
+object AppInfo {
+    fun getVersionCode() = BuildConfig.VERSION_CODE
+    fun getVersionName() = BuildConfig.VERSION_NAME
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/AppModule.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/AppModule.kt
@ -1,41 +1,62 @@
 package eu.kanade.tachiyomi

 import android.app.Application
-import com.google.gson.Gson
+import androidx.core.content.ContextCompat
 import eu.kanade.tachiyomi.data.cache.ChapterCache
 import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.download.DownloadManager
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.data.track.TrackManager
+import eu.kanade.tachiyomi.data.track.job.DelayedTrackingStore
+import eu.kanade.tachiyomi.extension.ExtensionManager
 import eu.kanade.tachiyomi.network.NetworkHelper
 import eu.kanade.tachiyomi.source.SourceManager
+import kotlinx.serialization.json.Json
 import uy.kohesive.injekt.api.InjektModule
 import uy.kohesive.injekt.api.InjektRegistrar
+import uy.kohesive.injekt.api.addSingleton
 import uy.kohesive.injekt.api.addSingletonFactory
+import uy.kohesive.injekt.api.get

 class AppModule(val app: Application) : InjektModule {

    override fun InjektRegistrar.registerInjectables() {
+        addSingleton(app)

-            addSingletonFactory { PreferencesHelper(app) }
+        addSingletonFactory { Json { ignoreUnknownKeys = true } }

-            addSingletonFactory { DatabaseHelper(app) }
+        addSingletonFactory { PreferencesHelper(app) }

-            addSingletonFactory { ChapterCache(app) }
+        addSingletonFactory { DatabaseHelper(app) }

-            addSingletonFactory { CoverCache(app) }
+        addSingletonFactory { ChapterCache(app) }

-            addSingletonFactory { NetworkHelper(app) }
+        addSingletonFactory { CoverCache(app) }

-            addSingletonFactory { SourceManager(app) }
+        addSingletonFactory { NetworkHelper(app) }

-            addSingletonFactory { DownloadManager(app) }
+        addSingletonFactory { SourceManager(app).also { get<ExtensionManager>().init(it) } }

-            addSingletonFactory { TrackManager(app) }
+        addSingletonFactory { ExtensionManager(app) }

-            addSingletonFactory { Gson() }
+        addSingletonFactory { DownloadManager(app) }

+        addSingletonFactory { TrackManager(app) }
+
+        addSingletonFactory { DelayedTrackingStore(app) }
+
+        // Asynchronously init expensive components for a faster cold start
+        ContextCompat.getMainExecutor(app).execute {
+            get<PreferencesHelper>()
+
+            get<NetworkHelper>()
+
+            get<SourceManager>()
+
+            get<DatabaseHelper>()
+
+            get<DownloadManager>()
+        }
    }
-
-}
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/Migrations.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/Migrations.kt
@ -1,9 +1,27 @@
 package eu.kanade.tachiyomi

+import android.os.Build
+import androidx.core.content.edit
+import androidx.preference.PreferenceManager
+import eu.kanade.tachiyomi.data.backup.BackupCreatorJob
 import eu.kanade.tachiyomi.data.library.LibraryUpdateJob
+import eu.kanade.tachiyomi.data.preference.MANGA_ONGOING
+import eu.kanade.tachiyomi.data.preference.PreferenceKeys
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
-import eu.kanade.tachiyomi.data.preference.getOrDefault
-import eu.kanade.tachiyomi.data.updater.UpdateCheckerJob
+import eu.kanade.tachiyomi.data.track.TrackManager
+import eu.kanade.tachiyomi.data.updater.AppUpdateJob
+import eu.kanade.tachiyomi.extension.ExtensionUpdateJob
+import eu.kanade.tachiyomi.network.PREF_DOH_CLOUDFLARE
+import eu.kanade.tachiyomi.ui.library.LibrarySort
+import eu.kanade.tachiyomi.ui.library.setting.SortDirectionSetting
+import eu.kanade.tachiyomi.ui.library.setting.SortModeSetting
+import eu.kanade.tachiyomi.ui.reader.setting.OrientationType
+import eu.kanade.tachiyomi.util.preference.minusAssign
+import eu.kanade.tachiyomi.util.preference.plusAssign
+import eu.kanade.tachiyomi.util.system.toast
+import eu.kanade.tachiyomi.widget.ExtendedNavigationView
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
 import java.io.File

 object Migrations {
@ -16,18 +34,32 @@ object Migrations {
     */
    fun upgrade(preferences: PreferencesHelper): Boolean {
        val context = preferences.context
-        val oldVersion = preferences.lastVersionCode().getOrDefault()
+
+        val oldVersion = preferences.lastVersionCode().get()
        if (oldVersion < BuildConfig.VERSION_CODE) {
            preferences.lastVersionCode().set(BuildConfig.VERSION_CODE)

-            if (oldVersion == 0) return false
+            // Always set up background tasks to ensure they're running
+            if (BuildConfig.INCLUDE_UPDATER) {
+                AppUpdateJob.setupTask(context)
+            }
+            ExtensionUpdateJob.setupTask(context)
+            LibraryUpdateJob.setupTask(context)
+            BackupCreatorJob.setupTask(context)
+
+            // Fresh install
+            if (oldVersion == 0) {
+                return false
+            }
+
+            val prefs = PreferenceManager.getDefaultSharedPreferences(context)

            if (oldVersion < 14) {
-                // Restore jobs after upgrading to evernote's job scheduler.
-                if (BuildConfig.INCLUDE_UPDATER && preferences.automaticUpdates()) {
-                    UpdateCheckerJob.setupTask()
+                // Restore jobs after upgrading to Evernote's job scheduler.
+                if (BuildConfig.INCLUDE_UPDATER) {
+                    AppUpdateJob.setupTask(context)
                }
-                LibraryUpdateJob.setupTask()
+                LibraryUpdateJob.setupTask(context)
            }
            if (oldVersion < 15) {
                // Delete internal chapter cache dir.
@ -39,7 +71,7 @@ object Migrations {
                if (oldDir.exists()) {
                    val destDir = context.getExternalFilesDir("covers")
                    if (destDir != null) {
-                        oldDir.listFiles().forEach {
+                        oldDir.listFiles()?.forEach {
                            it.renameTo(File(destDir, it.name))
                        }
                    }
@ -55,9 +87,168 @@ object Migrations {
                    }
                }
            }
+            if (oldVersion < 43) {
+                // Restore jobs after migrating from Evernote's job scheduler to WorkManager.
+                if (BuildConfig.INCLUDE_UPDATER) {
+                    AppUpdateJob.setupTask(context)
+                }
+                LibraryUpdateJob.setupTask(context)
+                BackupCreatorJob.setupTask(context)
+
+                // New extension update check job
+                ExtensionUpdateJob.setupTask(context)
+            }
+            if (oldVersion < 44) {
+                // Reset sorting preference if using removed sort by source
+                val oldSortingMode = prefs.getInt(PreferenceKeys.librarySortingMode, 0)
+
+                @Suppress("DEPRECATION")
+                if (oldSortingMode == LibrarySort.SOURCE) {
+                    prefs.edit {
+                        putInt(PreferenceKeys.librarySortingMode, LibrarySort.ALPHA)
+                    }
+                }
+            }
+            if (oldVersion < 52) {
+                // Migrate library filters to tri-state versions
+                fun convertBooleanPrefToTriState(key: String): Int {
+                    val oldPrefValue = prefs.getBoolean(key, false)
+                    return if (oldPrefValue) ExtendedNavigationView.Item.TriStateGroup.State.INCLUDE.value
+                    else ExtendedNavigationView.Item.TriStateGroup.State.IGNORE.value
+                }
+                prefs.edit {
+                    putInt(PreferenceKeys.filterDownloaded, convertBooleanPrefToTriState("pref_filter_downloaded_key"))
+                    remove("pref_filter_downloaded_key")
+
+                    putInt(PreferenceKeys.filterUnread, convertBooleanPrefToTriState("pref_filter_unread_key"))
+                    remove("pref_filter_unread_key")
+
+                    putInt(PreferenceKeys.filterCompleted, convertBooleanPrefToTriState("pref_filter_completed_key"))
+                    remove("pref_filter_completed_key")
+                }
+            }
+            if (oldVersion < 54) {
+                // Force MAL log out due to login flow change
+                // v52: switched from scraping to WebView
+                // v53: switched from WebView to OAuth
+                val trackManager = Injekt.get<TrackManager>()
+                if (trackManager.myAnimeList.isLogged) {
+                    trackManager.myAnimeList.logout()
+                    context.toast(R.string.myanimelist_relogin)
+                }
+            }
+            if (oldVersion < 57) {
+                // Migrate DNS over HTTPS setting
+                val wasDohEnabled = prefs.getBoolean("enable_doh", false)
+                if (wasDohEnabled) {
+                    prefs.edit {
+                        putInt(PreferenceKeys.dohProvider, PREF_DOH_CLOUDFLARE)
+                        remove("enable_doh")
+                    }
+                }
+            }
+            if (oldVersion < 59) {
+                // Reset rotation to Free after replacing Lock
+                if (prefs.contains("pref_rotation_type_key")) {
+                    prefs.edit {
+                        putInt("pref_rotation_type_key", 1)
+                    }
+                }
+
+                // Disable update check for Android 5.x users
+                if (BuildConfig.INCLUDE_UPDATER && Build.VERSION.SDK_INT <= Build.VERSION_CODES.M) {
+                    AppUpdateJob.cancelTask(context)
+                }
+            }
+            if (oldVersion < 60) {
+                // Re-enable update check that was prevously accidentally disabled for M
+                if (BuildConfig.INCLUDE_UPDATER && Build.VERSION.SDK_INT == Build.VERSION_CODES.M) {
+                    AppUpdateJob.setupTask(context)
+                }
+
+                // Migrate Rotation and Viewer values to default values for viewer_flags
+                val newOrientation = when (prefs.getInt("pref_rotation_type_key", 1)) {
+                    1 -> OrientationType.FREE.flagValue
+                    2 -> OrientationType.PORTRAIT.flagValue
+                    3 -> OrientationType.LANDSCAPE.flagValue
+                    4 -> OrientationType.LOCKED_PORTRAIT.flagValue
+                    5 -> OrientationType.LOCKED_LANDSCAPE.flagValue
+                    else -> OrientationType.FREE.flagValue
+                }
+
+                // Reading mode flag and prefValue is the same value
+                val newReadingMode = prefs.getInt("pref_default_viewer_key", 1)
+
+                prefs.edit {
+                    putInt("pref_default_orientation_type_key", newOrientation)
+                    remove("pref_rotation_type_key")
+                    putInt("pref_default_reading_mode_key", newReadingMode)
+                    remove("pref_default_viewer_key")
+                }
+            }
+            if (oldVersion < 61) {
+                // Handle removed every 1 or 2 hour library updates
+                val updateInterval = preferences.libraryUpdateInterval().get()
+                if (updateInterval == 1 || updateInterval == 2) {
+                    preferences.libraryUpdateInterval().set(3)
+                    LibraryUpdateJob.setupTask(context, 3)
+                }
+            }
+            if (oldVersion < 64) {
+                val oldSortingMode = prefs.getInt(PreferenceKeys.librarySortingMode, 0)
+                val oldSortingDirection = prefs.getBoolean(PreferenceKeys.librarySortingDirection, true)
+
+                @Suppress("DEPRECATION")
+                val newSortingMode = when (oldSortingMode) {
+                    LibrarySort.ALPHA -> SortModeSetting.ALPHABETICAL
+                    LibrarySort.LAST_READ -> SortModeSetting.LAST_READ
+                    LibrarySort.LAST_CHECKED -> SortModeSetting.LAST_CHECKED
+                    LibrarySort.UNREAD -> SortModeSetting.UNREAD
+                    LibrarySort.TOTAL -> SortModeSetting.TOTAL_CHAPTERS
+                    LibrarySort.LATEST_CHAPTER -> SortModeSetting.LATEST_CHAPTER
+                    LibrarySort.CHAPTER_FETCH_DATE -> SortModeSetting.DATE_FETCHED
+                    LibrarySort.DATE_ADDED -> SortModeSetting.DATE_ADDED
+                    else -> SortModeSetting.ALPHABETICAL
+                }
+
+                val newSortingDirection = when (oldSortingDirection) {
+                    true -> SortDirectionSetting.ASCENDING
+                    else -> SortDirectionSetting.DESCENDING
+                }
+
+                prefs.edit(commit = true) {
+                    remove(PreferenceKeys.librarySortingMode)
+                    remove(PreferenceKeys.librarySortingDirection)
+                }
+
+                prefs.edit {
+                    putString(PreferenceKeys.librarySortingMode, newSortingMode.name)
+                    putString(PreferenceKeys.librarySortingDirection, newSortingDirection.name)
+                }
+            }
+            if (oldVersion < 70) {
+                if (preferences.enabledLanguages().isSet()) {
+                    preferences.enabledLanguages() += "all"
+                }
+            }
+            if (oldVersion < 71) {
+                // Handle removed every 3, 4, 6, and 8 hour library updates
+                val updateInterval = preferences.libraryUpdateInterval().get()
+                if (updateInterval in listOf(3, 4, 6, 8)) {
+                    preferences.libraryUpdateInterval().set(12)
+                    LibraryUpdateJob.setupTask(context, 12)
+                }
+            }
+            if (oldVersion < 72) {
+                val oldUpdateOngoingOnly = prefs.getBoolean("pref_update_only_non_completed_key", true)
+                if (!oldUpdateOngoingOnly) {
+                    preferences.libraryUpdateMangaRestriction() -= MANGA_ONGOING
+                }
+            }
+
            return true
        }
+
        return false
    }
-
-}
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupManager.kt
@ -0,0 +1,96 @@
+package eu.kanade.tachiyomi.data.backup
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.data.database.DatabaseHelper
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.toMangaInfo
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.track.TrackManager
+import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.source.SourceManager
+import eu.kanade.tachiyomi.source.model.toSChapter
+import eu.kanade.tachiyomi.util.chapter.syncChaptersWithSource
+import uy.kohesive.injekt.injectLazy
+
+abstract class AbstractBackupManager(protected val context: Context) {
+
+    internal val databaseHelper: DatabaseHelper by injectLazy()
+    internal val sourceManager: SourceManager by injectLazy()
+    internal val trackManager: TrackManager by injectLazy()
+    protected val preferences: PreferencesHelper by injectLazy()
+
+    abstract fun createBackup(uri: Uri, flags: Int, isJob: Boolean): String
+
+    /**
+     * Returns manga
+     *
+     * @return [Manga], null if not found
+     */
+    internal fun getMangaFromDatabase(manga: Manga): Manga? =
+        databaseHelper.getManga(manga.url, manga.source).executeAsBlocking()
+
+    /**
+     * Fetches chapter information.
+     *
+     * @param source source of manga
+     * @param manga manga that needs updating
+     * @param chapters list of chapters in the backup
+     * @return Updated manga chapters.
+     */
+    internal suspend fun restoreChapters(source: Source, manga: Manga, chapters: List<Chapter>): Pair<List<Chapter>, List<Chapter>> {
+        val fetchedChapters = source.getChapterList(manga.toMangaInfo())
+            .map { it.toSChapter() }
+        val syncedChapters = syncChaptersWithSource(databaseHelper, fetchedChapters, manga, source)
+        if (syncedChapters.first.isNotEmpty()) {
+            chapters.forEach { it.manga_id = manga.id }
+            updateChapters(chapters)
+        }
+        return syncedChapters
+    }
+
+    /**
+     * Returns list containing manga from library
+     *
+     * @return [Manga] from library
+     */
+    protected fun getFavoriteManga(): List<Manga> =
+        databaseHelper.getFavoriteMangas().executeAsBlocking()
+
+    /**
+     * Inserts manga and returns id
+     *
+     * @return id of [Manga], null if not found
+     */
+    internal fun insertManga(manga: Manga): Long? =
+        databaseHelper.insertManga(manga).executeAsBlocking().insertedId()
+
+    /**
+     * Inserts list of chapters
+     */
+    protected fun insertChapters(chapters: List<Chapter>) {
+        databaseHelper.insertChapters(chapters).executeAsBlocking()
+    }
+
+    /**
+     * Updates a list of chapters
+     */
+    protected fun updateChapters(chapters: List<Chapter>) {
+        databaseHelper.updateChaptersBackup(chapters).executeAsBlocking()
+    }
+
+    /**
+     * Updates a list of chapters with known database ids
+     */
+    protected fun updateKnownChapters(chapters: List<Chapter>) {
+        databaseHelper.updateKnownChaptersBackup(chapters).executeAsBlocking()
+    }
+
+    /**
+     * Return number of backups.
+     *
+     * @return number of backups selected by user
+     */
+    protected fun numberOfBackups(): Int = preferences.numberOfBackups().get()
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupRestore.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupRestore.kt
@ -0,0 +1,138 @@
+package eu.kanade.tachiyomi.data.backup
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.database.DatabaseHelper
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.data.track.TrackManager
+import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.util.chapter.NoChaptersException
+import eu.kanade.tachiyomi.util.system.createFileInCacheDir
+import kotlinx.coroutines.Job
+import uy.kohesive.injekt.injectLazy
+import java.io.File
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+abstract class AbstractBackupRestore<T : AbstractBackupManager>(protected val context: Context, protected val notifier: BackupNotifier) {
+
+    protected val db: DatabaseHelper by injectLazy()
+    protected val trackManager: TrackManager by injectLazy()
+
+    var job: Job? = null
+
+    protected lateinit var backupManager: T
+
+    protected var restoreAmount = 0
+    protected var restoreProgress = 0
+
+    /**
+     * Mapping of source ID to source name from backup data
+     */
+    protected var sourceMapping: Map<Long, String> = emptyMap()
+
+    protected val errors = mutableListOf<Pair<Date, String>>()
+
+    abstract suspend fun performRestore(uri: Uri): Boolean
+
+    suspend fun restoreBackup(uri: Uri): Boolean {
+        val startTime = System.currentTimeMillis()
+        restoreProgress = 0
+        errors.clear()
+
+        if (!performRestore(uri)) {
+            return false
+        }
+
+        val endTime = System.currentTimeMillis()
+        val time = endTime - startTime
+
+        val logFile = writeErrorLog()
+
+        notifier.showRestoreComplete(time, errors.size, logFile.parent, logFile.name)
+        return true
+    }
+
+    /**
+     * Fetches chapter information.
+     *
+     * @param source source of manga
+     * @param manga manga that needs updating
+     * @return Updated manga chapters.
+     */
+    internal suspend fun updateChapters(source: Source, manga: Manga, chapters: List<Chapter>): Pair<List<Chapter>, List<Chapter>> {
+        return try {
+            backupManager.restoreChapters(source, manga, chapters)
+        } catch (e: Exception) {
+            // If there's any error, return empty update and continue.
+            val errorMessage = if (e is NoChaptersException) {
+                context.getString(R.string.no_chapters_error)
+            } else {
+                e.message
+            }
+            errors.add(Date() to "${manga.title} - $errorMessage")
+            Pair(emptyList(), emptyList())
+        }
+    }
+
+    /**
+     * Refreshes tracking information.
+     *
+     * @param manga manga that needs updating.
+     * @param tracks list containing tracks from restore file.
+     */
+    internal suspend fun updateTracking(manga: Manga, tracks: List<Track>) {
+        tracks.forEach { track ->
+            val service = trackManager.getService(track.sync_id)
+            if (service != null && service.isLogged) {
+                try {
+                    val updatedTrack = service.refresh(track)
+                    db.insertTrack(updatedTrack).executeAsBlocking()
+                } catch (e: Exception) {
+                    errors.add(Date() to "${manga.title} - ${e.message}")
+                }
+            } else {
+                val serviceName = service?.nameRes()?.let { context.getString(it) }
+                errors.add(Date() to "${manga.title} - ${context.getString(R.string.tracker_not_logged_in, serviceName)}")
+            }
+        }
+    }
+
+    /**
+     * Called to update dialog in [BackupConst]
+     *
+     * @param progress restore progress
+     * @param amount total restoreAmount of manga
+     * @param title title of restored manga
+     */
+    internal fun showRestoreProgress(
+        progress: Int,
+        amount: Int,
+        title: String
+    ) {
+        notifier.showRestoreProgress(title, progress, amount)
+    }
+
+    internal fun writeErrorLog(): File {
+        try {
+            if (errors.isNotEmpty()) {
+                val file = context.createFileInCacheDir("tachiyomi_restore.txt")
+                val sdf = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault())
+
+                file.bufferedWriter().use { out ->
+                    errors.forEach { (date, message) ->
+                        out.write("[${sdf.format(date)}] $message\n")
+                    }
+                }
+                return file
+            }
+        } catch (e: Exception) {
+            // Empty
+        }
+        return File("")
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupRestoreValidator.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupRestoreValidator.kt
@ -0,0 +1,18 @@
+package eu.kanade.tachiyomi.data.backup
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.data.track.TrackManager
+import eu.kanade.tachiyomi.source.SourceManager
+import uy.kohesive.injekt.injectLazy
+
+abstract class AbstractBackupRestoreValidator {
+    protected val sourceManager: SourceManager by injectLazy()
+    protected val trackManager: TrackManager by injectLazy()
+
+    abstract fun validate(context: Context, uri: Uri): Results
+
+    data class Results(val missingSources: List<String>, val missingTrackers: List<String>)
+}
+
+class ValidatorParseException(e: Exception) : RuntimeException(e)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupConst.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupConst.kt
@ -1,23 +1,14 @@
 package eu.kanade.tachiyomi.data.backup
-import eu.kanade.tachiyomi.BuildConfig.APPLICATION_ID as ID

+import eu.kanade.tachiyomi.BuildConfig.APPLICATION_ID as ID

 object BackupConst {

-    const val INTENT_FILTER = "SettingsBackupFragment"
-    const val ACTION_BACKUP_COMPLETED_DIALOG = "$ID.$INTENT_FILTER.ACTION_BACKUP_COMPLETED_DIALOG"
-    const val ACTION_SET_PROGRESS_DIALOG = "$ID.$INTENT_FILTER.ACTION_SET_PROGRESS_DIALOG"
-    const val ACTION_ERROR_BACKUP_DIALOG = "$ID.$INTENT_FILTER.ACTION_ERROR_BACKUP_DIALOG"
-    const val ACTION_ERROR_RESTORE_DIALOG = "$ID.$INTENT_FILTER.ACTION_ERROR_RESTORE_DIALOG"
-    const val ACTION_RESTORE_COMPLETED_DIALOG = "$ID.$INTENT_FILTER.ACTION_RESTORE_COMPLETED_DIALOG"
-    const val ACTION = "$ID.$INTENT_FILTER.ACTION"
-    const val EXTRA_PROGRESS = "$ID.$INTENT_FILTER.EXTRA_PROGRESS"
-    const val EXTRA_AMOUNT = "$ID.$INTENT_FILTER.EXTRA_AMOUNT"
-    const val EXTRA_ERRORS = "$ID.$INTENT_FILTER.EXTRA_ERRORS"
-    const val EXTRA_CONTENT = "$ID.$INTENT_FILTER.EXTRA_CONTENT"
-    const val EXTRA_ERROR_MESSAGE = "$ID.$INTENT_FILTER.EXTRA_ERROR_MESSAGE"
-    const val EXTRA_URI = "$ID.$INTENT_FILTER.EXTRA_URI"
-    const val EXTRA_TIME = "$ID.$INTENT_FILTER.EXTRA_TIME"
-    const val EXTRA_ERROR_FILE_PATH = "$ID.$INTENT_FILTER.EXTRA_ERROR_FILE_PATH"
-    const val EXTRA_ERROR_FILE = "$ID.$INTENT_FILTER.EXTRA_ERROR_FILE"
-}
+    private const val NAME = "BackupRestoreServices"
+    const val EXTRA_URI = "$ID.$NAME.EXTRA_URI"
+    const val EXTRA_FLAGS = "$ID.$NAME.EXTRA_FLAGS"
+    const val EXTRA_MODE = "$ID.$NAME.EXTRA_MODE"
+
+    const val BACKUP_TYPE_LEGACY = 0
+    const val BACKUP_TYPE_FULL = 1
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreateService.kt
@ -1,36 +1,25 @@
 package eu.kanade.tachiyomi.data.backup

-import android.app.IntentService
+import android.app.Service
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
-import com.github.salomonbrys.kotson.set
-import com.google.gson.JsonArray
-import com.google.gson.JsonObject
+import android.os.IBinder
+import android.os.PowerManager
+import androidx.core.content.ContextCompat
+import androidx.core.net.toUri
 import com.hippo.unifile.UniFile
-import eu.kanade.tachiyomi.data.backup.models.Backup
-import eu.kanade.tachiyomi.data.backup.models.Backup.CATEGORIES
-import eu.kanade.tachiyomi.data.backup.models.Backup.MANGAS
-import eu.kanade.tachiyomi.data.backup.models.Backup.VERSION
-import eu.kanade.tachiyomi.data.database.models.Manga
-import eu.kanade.tachiyomi.util.sendLocalBroadcast
-import timber.log.Timber
-import eu.kanade.tachiyomi.BuildConfig.APPLICATION_ID as ID
+import eu.kanade.tachiyomi.data.backup.full.FullBackupManager
+import eu.kanade.tachiyomi.data.notification.Notifications
+import eu.kanade.tachiyomi.util.system.acquireWakeLock
+import eu.kanade.tachiyomi.util.system.isServiceRunning

 /**
- * [IntentService] used to backup [Manga] information to [JsonArray]
+ * Service for backing up library information to a JSON file.
 */
-class BackupCreateService : IntentService(NAME) {
+class BackupCreateService : Service() {

    companion object {
-        // Name of class
-        private const val NAME = "BackupCreateService"
-
-        // Backup called from job
-        private const val EXTRA_IS_JOB = "$ID.$NAME.EXTRA_IS_JOB"
-        // Options for backup
-        private const val EXTRA_FLAGS = "$ID.$NAME.EXTRA_FLAGS"
-
        // Filter options
        internal const val BACKUP_CATEGORY = 0x1
        internal const val BACKUP_CATEGORY_MASK = 0x1
@ -42,121 +31,84 @@ class BackupCreateService : IntentService(NAME) {
        internal const val BACKUP_TRACK_MASK = 0x8
        internal const val BACKUP_ALL = 0xF

+        /**
+         * Returns the status of the service.
+         *
+         * @param context the application context.
+         * @return true if the service is running, false otherwise.
+         */
+        fun isRunning(context: Context): Boolean =
+            context.isServiceRunning(BackupCreateService::class.java)
+
        /**
         * Make a backup from library
         *
         * @param context context of application
         * @param uri path of Uri
         * @param flags determines what to backup
-         * @param isJob backup called from job
         */
-        fun makeBackup(context: Context, uri: Uri, flags: Int, isJob: Boolean = false) {
-            val intent = Intent(context, BackupCreateService::class.java).apply {
-                putExtra(BackupConst.EXTRA_URI, uri)
-                putExtra(EXTRA_IS_JOB, isJob)
-                putExtra(EXTRA_FLAGS, flags)
+        fun start(context: Context, uri: Uri, flags: Int) {
+            if (!isRunning(context)) {
+                val intent = Intent(context, BackupCreateService::class.java).apply {
+                    putExtra(BackupConst.EXTRA_URI, uri)
+                    putExtra(BackupConst.EXTRA_FLAGS, flags)
+                }
+                ContextCompat.startForegroundService(context, intent)
            }
-            context.startService(intent)
        }
-
-    }
-
-    private val backupManager by lazy { BackupManager(this) }
-
-    override fun onHandleIntent(intent: Intent?) {
-        if (intent == null) return
-
-        // Get values
-        val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)
-        val isJob = intent.getBooleanExtra(EXTRA_IS_JOB, false)
-        val flags = intent.getIntExtra(EXTRA_FLAGS, 0)
-        // Create backup
-        createBackupFromApp(uri, flags, isJob)
    }

    /**
-     * Create backup Json file from database
-     *
-     * @param uri path of Uri
-     * @param isJob backup called from job
+     * Wake lock that will be held until the service is destroyed.
     */
-    private fun createBackupFromApp(uri: Uri, flags: Int, isJob: Boolean) {
-        // Create root object
-        val root = JsonObject()
+    private lateinit var wakeLock: PowerManager.WakeLock

-        // Create manga array
-        val mangaEntries = JsonArray()
+    private lateinit var notifier: BackupNotifier

-        // Create category array
-        val categoryEntries = JsonArray()
+    override fun onCreate() {
+        super.onCreate()

-        // Add value's to root
-        root[VERSION] = Backup.CURRENT_VERSION
-        root[MANGAS] = mangaEntries
-        root[CATEGORIES] = categoryEntries
+        notifier = BackupNotifier(this)
+        wakeLock = acquireWakeLock(javaClass.name)

-        backupManager.databaseHelper.inTransaction {
-            // Get manga from database
-            val mangas = backupManager.getFavoriteManga()
+        startForeground(Notifications.ID_BACKUP_PROGRESS, notifier.showBackupProgress().build())
+    }

-            // Backup library manga and its dependencies
-            mangas.forEach { manga ->
-                mangaEntries.add(backupManager.backupMangaObject(manga, flags))
-            }
+    override fun stopService(name: Intent?): Boolean {
+        destroyJob()
+        return super.stopService(name)
+    }

-            // Backup categories
-            if ((flags and BACKUP_CATEGORY_MASK) == BACKUP_CATEGORY) {
-                backupManager.backupCategories(categoryEntries)
-            }
-        }
+    override fun onDestroy() {
+        destroyJob()
+        super.onDestroy()
+    }

-        try {
-            // When BackupCreatorJob
-            if (isJob) {
-                // Get dir of file and create
-                var dir = UniFile.fromUri(this, uri)
-                dir = dir.createDirectory("automatic")
-
-                // Delete older backups
-                val numberOfBackups = backupManager.numberOfBackups()
-                val backupRegex = Regex("""tachiyomi_\d+-\d+-\d+_\d+-\d+.json""")
-                dir.listFiles { _, filename -> backupRegex.matches(filename) }
-                        .orEmpty()
-                        .sortedByDescending { it.name }
-                        .drop(numberOfBackups - 1)
-                        .forEach { it.delete() }
-
-                // Create new file to place backup
-                val newFile = dir.createFile(Backup.getDefaultFilename())
-                        ?: throw Exception("Couldn't create backup file")
-
-                newFile.openOutputStream().bufferedWriter().use {
-                    backupManager.parser.toJson(root, it)
-                }
-            } else {
-                val file = UniFile.fromUri(this, uri)
-                        ?: throw Exception("Couldn't create backup file")
-                file.openOutputStream().bufferedWriter().use {
-                    backupManager.parser.toJson(root, it)
-                }
-
-                // Show completed dialog
-                val intent = Intent(BackupConst.INTENT_FILTER).apply {
-                    putExtra(BackupConst.ACTION, BackupConst.ACTION_BACKUP_COMPLETED_DIALOG)
-                    putExtra(BackupConst.EXTRA_URI, file.uri.toString())
-                }
-                sendLocalBroadcast(intent)
-            }
-        } catch (e: Exception) {
-            Timber.e(e)
-            if (!isJob) {
-                // Show error dialog
-                val intent = Intent(BackupConst.INTENT_FILTER).apply {
-                    putExtra(BackupConst.ACTION, BackupConst.ACTION_ERROR_BACKUP_DIALOG)
-                    putExtra(BackupConst.EXTRA_ERROR_MESSAGE, e.message)
-                }
-                sendLocalBroadcast(intent)
-            }
+    private fun destroyJob() {
+        if (wakeLock.isHeld) {
+            wakeLock.release()
        }
    }
-}
+
+    /**
+     * This method needs to be implemented, but it's not used/needed.
+     */
+    override fun onBind(intent: Intent): IBinder? = null
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        if (intent == null) return START_NOT_STICKY
+
+        try {
+            val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)!!
+            val backupFlags = intent.getIntExtra(BackupConst.EXTRA_FLAGS, 0)
+            val backupFileUri = FullBackupManager(this).createBackup(uri, backupFlags, false)?.toUri()
+            val unifile = UniFile.fromUri(this, backupFileUri)
+            notifier.showBackupComplete(unifile)
+        } catch (e: Exception) {
+            notifier.showBackupError(e.message)
+        }
+
+        stopSelf(startId)
+        return START_NOT_STICKY
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreatorJob.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreatorJob.kt
@ -1,41 +1,56 @@
 package eu.kanade.tachiyomi.data.backup

-import android.net.Uri
-import com.evernote.android.job.Job
-import com.evernote.android.job.JobManager
-import com.evernote.android.job.JobRequest
+import android.content.Context
+import androidx.core.net.toUri
+import androidx.work.ExistingPeriodicWorkPolicy
+import androidx.work.PeriodicWorkRequestBuilder
+import androidx.work.WorkManager
+import androidx.work.Worker
+import androidx.work.WorkerParameters
+import eu.kanade.tachiyomi.data.backup.full.FullBackupManager
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
-import eu.kanade.tachiyomi.data.preference.getOrDefault
+import eu.kanade.tachiyomi.util.system.logcat
+import logcat.LogPriority
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
+import java.util.concurrent.TimeUnit

-class BackupCreatorJob : Job() {
+class BackupCreatorJob(private val context: Context, workerParams: WorkerParameters) :
+    Worker(context, workerParams) {

-    override fun onRunJob(params: Params): Result {
+    override fun doWork(): Result {
        val preferences = Injekt.get<PreferencesHelper>()
-        val uri = Uri.parse(preferences.backupsDirectory().getOrDefault())
+        val uri = preferences.backupsDirectory().get().toUri()
        val flags = BackupCreateService.BACKUP_ALL
-        BackupCreateService.makeBackup(context, uri, flags, true)
-        return Result.SUCCESS
+        return try {
+            FullBackupManager(context).createBackup(uri, flags, true)
+            Result.success()
+        } catch (e: Exception) {
+            logcat(LogPriority.ERROR, e)
+            Result.failure()
+        }
    }

    companion object {
-        const val TAG = "BackupCreator"
+        private const val TAG = "BackupCreator"

-        fun setupTask(prefInterval: Int? = null) {
+        fun setupTask(context: Context, prefInterval: Int? = null) {
            val preferences = Injekt.get<PreferencesHelper>()
-            val interval = prefInterval ?: preferences.backupInterval().getOrDefault()
+            val interval = prefInterval ?: preferences.backupInterval().get()
            if (interval > 0) {
-                JobRequest.Builder(TAG)
-                        .setPeriodic(interval * 60 * 60 * 1000L, 10 * 60 * 1000)
-                        .setUpdateCurrent(true)
-                        .build()
-                        .schedule()
+                val request = PeriodicWorkRequestBuilder<BackupCreatorJob>(
+                    interval.toLong(),
+                    TimeUnit.HOURS,
+                    10,
+                    TimeUnit.MINUTES
+                )
+                    .addTag(TAG)
+                    .build()
+
+                WorkManager.getInstance(context).enqueueUniquePeriodicWork(TAG, ExistingPeriodicWorkPolicy.REPLACE, request)
+            } else {
+                WorkManager.getInstance(context).cancelAllWorkByTag(TAG)
            }
        }
-
-        fun cancelTask() {
-            JobManager.instance().cancelAllForTag(TAG)
-        }
    }
-}
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupManager.kt
@ -1,403 +0,0 @@
-package eu.kanade.tachiyomi.data.backup
-
-import android.content.Context
-import com.github.salomonbrys.kotson.*
-import com.google.gson.*
-import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CATEGORY
-import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CATEGORY_MASK
-import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CHAPTER
-import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CHAPTER_MASK
-import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_HISTORY
-import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_HISTORY_MASK
-import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_TRACK
-import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_TRACK_MASK
-import eu.kanade.tachiyomi.data.backup.models.Backup.CATEGORIES
-import eu.kanade.tachiyomi.data.backup.models.Backup.CHAPTERS
-import eu.kanade.tachiyomi.data.backup.models.Backup.CURRENT_VERSION
-import eu.kanade.tachiyomi.data.backup.models.Backup.HISTORY
-import eu.kanade.tachiyomi.data.backup.models.Backup.MANGA
-import eu.kanade.tachiyomi.data.backup.models.Backup.TRACK
-import eu.kanade.tachiyomi.data.backup.models.DHistory
-import eu.kanade.tachiyomi.data.backup.serializer.*
-import eu.kanade.tachiyomi.data.database.DatabaseHelper
-import eu.kanade.tachiyomi.data.database.models.*
-import eu.kanade.tachiyomi.data.preference.PreferencesHelper
-import eu.kanade.tachiyomi.data.preference.getOrDefault
-import eu.kanade.tachiyomi.data.track.TrackManager
-import eu.kanade.tachiyomi.source.Source
-import eu.kanade.tachiyomi.source.SourceManager
-import eu.kanade.tachiyomi.util.syncChaptersWithSource
-import rx.Observable
-import uy.kohesive.injekt.injectLazy
-
-class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
-
-    /**
-     * Database.
-     */
-    internal val databaseHelper: DatabaseHelper by injectLazy()
-
-    /**
-     * Source manager.
-     */
-    internal val sourceManager: SourceManager by injectLazy()
-
-    /**
-     * Tracking manager
-     */
-    internal val trackManager: TrackManager by injectLazy()
-
-    /**
-     * Version of parser
-     */
-    var version: Int = version
-        private set
-
-    /**
-     * Json Parser
-     */
-    var parser: Gson = initParser()
-
-    /**
-     * Preferences
-     */
-    private val preferences: PreferencesHelper by injectLazy()
-
-    /**
-     * Set version of parser
-     *
-     * @param version version of parser
-     */
-    internal fun setVersion(version: Int) {
-        this.version = version
-        parser = initParser()
-    }
-
-    private fun initParser(): Gson = when (version) {
-        1 -> GsonBuilder().create()
-        2 -> GsonBuilder()
-                .registerTypeAdapter<MangaImpl>(MangaTypeAdapter.build())
-                .registerTypeHierarchyAdapter<ChapterImpl>(ChapterTypeAdapter.build())
-                .registerTypeAdapter<CategoryImpl>(CategoryTypeAdapter.build())
-                .registerTypeAdapter<DHistory>(HistoryTypeAdapter.build())
-                .registerTypeHierarchyAdapter<TrackImpl>(TrackTypeAdapter.build())
-                .create()
-        else -> throw Exception("Json version unknown")
-    }
-
-    /**
-     * Backup the categories of library
-     *
-     * @param root root of categories json
-     */
-    internal fun backupCategories(root: JsonArray) {
-        val categories = databaseHelper.getCategories().executeAsBlocking()
-        categories.forEach { root.add(parser.toJsonTree(it)) }
-    }
-
-    /**
-     * Convert a manga to Json
-     *
-     * @param manga manga that gets converted
-     * @return [JsonElement] containing manga information
-     */
-    internal fun backupMangaObject(manga: Manga, options: Int): JsonElement {
-        // Entry for this manga
-        val entry = JsonObject()
-
-        // Backup manga fields
-        entry[MANGA] = parser.toJsonTree(manga)
-
-        // Check if user wants chapter information in backup
-        if (options and BACKUP_CHAPTER_MASK == BACKUP_CHAPTER) {
-            // Backup all the chapters
-            val chapters = databaseHelper.getChapters(manga).executeAsBlocking()
-            if (!chapters.isEmpty()) {
-                val chaptersJson = parser.toJsonTree(chapters)
-                if (chaptersJson.asJsonArray.size() > 0) {
-                    entry[CHAPTERS] = chaptersJson
-                }
-            }
-        }
-
-        // Check if user wants category information in backup
-        if (options and BACKUP_CATEGORY_MASK == BACKUP_CATEGORY) {
-            // Backup categories for this manga
-            val categoriesForManga = databaseHelper.getCategoriesForManga(manga).executeAsBlocking()
-            if (!categoriesForManga.isEmpty()) {
-                val categoriesNames = categoriesForManga.map { it.name }
-                entry[CATEGORIES] = parser.toJsonTree(categoriesNames)
-            }
-        }
-
-        // Check if user wants track information in backup
-        if (options and BACKUP_TRACK_MASK == BACKUP_TRACK) {
-            val tracks = databaseHelper.getTracks(manga).executeAsBlocking()
-            if (!tracks.isEmpty()) {
-                entry[TRACK] = parser.toJsonTree(tracks)
-            }
-        }
-
-        // Check if user wants history information in backup
-        if (options and BACKUP_HISTORY_MASK == BACKUP_HISTORY) {
-            val historyForManga = databaseHelper.getHistoryByMangaId(manga.id!!).executeAsBlocking()
-            if (!historyForManga.isEmpty()) {
-                val historyData = historyForManga.mapNotNull { history ->
-                    val url = databaseHelper.getChapter(history.chapter_id).executeAsBlocking()?.url
-                    url?.let { DHistory(url, history.last_read) }
-                }
-                val historyJson = parser.toJsonTree(historyData)
-                if (historyJson.asJsonArray.size() > 0) {
-                    entry[HISTORY] = historyJson
-                }
-            }
-        }
-
-        return entry
-    }
-
-    fun restoreMangaNoFetch(manga: Manga, dbManga: Manga) {
-        manga.id = dbManga.id
-        manga.copyFrom(dbManga)
-        manga.favorite = true
-        insertManga(manga)
-    }
-
-    /**
-     * [Observable] that fetches manga information
-     *
-     * @param source source of manga
-     * @param manga manga that needs updating
-     * @return [Observable] that contains manga
-     */
-    fun restoreMangaFetchObservable(source: Source, manga: Manga): Observable<Manga> {
-        return source.fetchMangaDetails(manga)
-                .map { networkManga ->
-                    manga.copyFrom(networkManga)
-                    manga.favorite = true
-                    manga.initialized = true
-                    manga.id = insertManga(manga)
-                    manga
-                }
-    }
-
-    /**
-     * [Observable] that fetches chapter information
-     *
-     * @param source source of manga
-     * @param manga manga that needs updating
-     * @return [Observable] that contains manga
-     */
-    fun restoreChapterFetchObservable(source: Source, manga: Manga, chapters: List<Chapter>): Observable<Pair<List<Chapter>, List<Chapter>>> {
-        return source.fetchChapterList(manga)
-                .map { syncChaptersWithSource(databaseHelper, it, manga, source) }
-                .doOnNext {
-                    if (it.first.isNotEmpty()) {
-                        chapters.forEach { it.manga_id = manga.id }
-                        insertChapters(chapters)
-                    }
-                }
-    }
-
-    /**
-     * Restore the categories from Json
-     *
-     * @param jsonCategories array containing categories
-     */
-    internal fun restoreCategories(jsonCategories: JsonArray) {
-        // Get categories from file and from db
-        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
-        val backupCategories = parser.fromJson<List<CategoryImpl>>(jsonCategories)
-
-        // Iterate over them
-        backupCategories.forEach { category ->
-            // Used to know if the category is already in the db
-            var found = false
-            for (dbCategory in dbCategories) {
-                // If the category is already in the db, assign the id to the file's category
-                // and do nothing
-                if (category.nameLower == dbCategory.nameLower) {
-                    category.id = dbCategory.id
-                    found = true
-                    break
-                }
-            }
-            // If the category isn't in the db, remove the id and insert a new category
-            // Store the inserted id in the category
-            if (!found) {
-                // Let the db assign the id
-                category.id = null
-                val result = databaseHelper.insertCategory(category).executeAsBlocking()
-                category.id = result.insertedId()?.toInt()
-            }
-        }
-    }
-
-    /**
-     * Restores the categories a manga is in.
-     *
-     * @param manga the manga whose categories have to be restored.
-     * @param categories the categories to restore.
-     */
-    internal fun restoreCategoriesForManga(manga: Manga, categories: List<String>) {
-        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
-        val mangaCategoriesToUpdate = ArrayList<MangaCategory>()
-        for (backupCategoryStr in categories) {
-            for (dbCategory in dbCategories) {
-                if (backupCategoryStr.toLowerCase() == dbCategory.nameLower) {
-                    mangaCategoriesToUpdate.add(MangaCategory.create(manga, dbCategory))
-                    break
-                }
-            }
-        }
-
-        // Update database
-        if (!mangaCategoriesToUpdate.isEmpty()) {
-            val mangaAsList = ArrayList<Manga>()
-            mangaAsList.add(manga)
-            databaseHelper.deleteOldMangasCategories(mangaAsList).executeAsBlocking()
-            databaseHelper.insertMangasCategories(mangaCategoriesToUpdate).executeAsBlocking()
-        }
-    }
-
-    /**
-     * Restore history from Json
-     *
-     * @param history list containing history to be restored
-     */
-    internal fun restoreHistoryForManga(history: List<DHistory>) {
-        // List containing history to be updated
-        val historyToBeUpdated = ArrayList<History>()
-        for ((url, lastRead) in history) {
-            val dbHistory = databaseHelper.getHistoryByChapterUrl(url).executeAsBlocking()
-            // Check if history already in database and update
-            if (dbHistory != null) {
-                dbHistory.apply {
-                    last_read = Math.max(lastRead, dbHistory.last_read)
-                }
-                historyToBeUpdated.add(dbHistory)
-            } else {
-                // If not in database create
-                databaseHelper.getChapter(url).executeAsBlocking()?.let {
-                    val historyToAdd = History.create(it).apply {
-                        last_read = lastRead
-                    }
-                    historyToBeUpdated.add(historyToAdd)
-                }
-            }
-        }
-        databaseHelper.updateHistoryLastRead(historyToBeUpdated).executeAsBlocking()
-    }
-
-    /**
-     * Restores the sync of a manga.
-     *
-     * @param manga the manga whose sync have to be restored.
-     * @param tracks the track list to restore.
-     */
-    internal fun restoreTrackForManga(manga: Manga, tracks: List<Track>) {
-        // Fix foreign keys with the current manga id
-        tracks.map { it.manga_id = manga.id!! }
-
-        // Get tracks from database
-        val dbTracks = databaseHelper.getTracks(manga).executeAsBlocking()
-        val trackToUpdate = ArrayList<Track>()
-
-        for (track in tracks) {
-            val service = trackManager.getService(track.sync_id)
-            if (service != null && service.isLogged) {
-                var isInDatabase = false
-                for (dbTrack in dbTracks) {
-                    if (track.sync_id == dbTrack.sync_id) {
-                        // The sync is already in the db, only update its fields
-                        if (track.remote_id != dbTrack.remote_id) {
-                            dbTrack.remote_id = track.remote_id
-                        }
-                        dbTrack.last_chapter_read = Math.max(dbTrack.last_chapter_read, track.last_chapter_read)
-                        isInDatabase = true
-                        trackToUpdate.add(dbTrack)
-                        break
-                    }
-                }
-                if (!isInDatabase) {
-                    // Insert new sync. Let the db assign the id
-                    track.id = null
-                    trackToUpdate.add(track)
-                }
-            }
-        }
-        // Update database
-        if (!trackToUpdate.isEmpty()) {
-            databaseHelper.insertTracks(trackToUpdate).executeAsBlocking()
-        }
-    }
-
-    /**
-     * Restore the chapters for manga if chapters already in database
-     *
-     * @param manga manga of chapters
-     * @param chapters list containing chapters that get restored
-     * @return boolean answering if chapter fetch is not needed
-     */
-    internal fun restoreChaptersForManga(manga: Manga, chapters: List<Chapter>): Boolean {
-        val dbChapters = databaseHelper.getChapters(manga).executeAsBlocking()
-
-        // Return if fetch is needed
-        if (dbChapters.isEmpty() || dbChapters.size < chapters.size)
-            return false
-
-        for (chapter in chapters) {
-            val pos = dbChapters.indexOf(chapter)
-            if (pos != -1) {
-                val dbChapter = dbChapters[pos]
-                chapter.id = dbChapter.id
-                chapter.copyFrom(dbChapter)
-                break
-            }
-        }
-        // Filter the chapters that couldn't be found.
-        chapters.filter { it.id != null }
-        chapters.map { it.manga_id = manga.id }
-
-        insertChapters(chapters)
-        return true
-    }
-
-    /**
-     * Returns manga
-     *
-     * @return [Manga], null if not found
-     */
-    internal fun getMangaFromDatabase(manga: Manga): Manga? =
-            databaseHelper.getManga(manga.url, manga.source).executeAsBlocking()
-
-    /**
-     * Returns list containing manga from library
-     *
-     * @return [Manga] from library
-     */
-    internal fun getFavoriteManga(): List<Manga> =
-            databaseHelper.getFavoriteMangas().executeAsBlocking()
-
-    /**
-     * Inserts manga and returns id
-     *
-     * @return id of [Manga], null if not found
-     */
-    internal fun insertManga(manga: Manga): Long? =
-            databaseHelper.insertManga(manga).executeAsBlocking().insertedId()
-
-    /**
-     * Inserts list of chapters
-     */
-    private fun insertChapters(chapters: List<Chapter>) {
-        databaseHelper.updateChaptersBackup(chapters).executeAsBlocking()
-    }
-
-    /**
-     * Return number of backups.
-     *
-     * @return number of backups selected by user
-     */
-    fun numberOfBackups(): Int = preferences.numberOfBackups().getOrDefault()
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupNotifier.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupNotifier.kt
@ -0,0 +1,154 @@
+package eu.kanade.tachiyomi.data.backup
+
+import android.content.Context
+import android.graphics.BitmapFactory
+import androidx.core.app.NotificationCompat
+import com.hippo.unifile.UniFile
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.notification.NotificationReceiver
+import eu.kanade.tachiyomi.data.notification.Notifications
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.util.storage.getUriCompat
+import eu.kanade.tachiyomi.util.system.notificationBuilder
+import eu.kanade.tachiyomi.util.system.notificationManager
+import uy.kohesive.injekt.injectLazy
+import java.io.File
+import java.util.concurrent.TimeUnit
+
+class BackupNotifier(private val context: Context) {
+
+    private val preferences: PreferencesHelper by injectLazy()
+
+    private val progressNotificationBuilder = context.notificationBuilder(Notifications.CHANNEL_BACKUP_RESTORE_PROGRESS) {
+        setLargeIcon(BitmapFactory.decodeResource(context.resources, R.mipmap.ic_launcher))
+        setSmallIcon(R.drawable.ic_tachi)
+        setAutoCancel(false)
+        setOngoing(true)
+        setOnlyAlertOnce(true)
+    }
+
+    private val completeNotificationBuilder = context.notificationBuilder(Notifications.CHANNEL_BACKUP_RESTORE_COMPLETE) {
+        setLargeIcon(BitmapFactory.decodeResource(context.resources, R.mipmap.ic_launcher))
+        setSmallIcon(R.drawable.ic_tachi)
+        setAutoCancel(false)
+    }
+
+    private fun NotificationCompat.Builder.show(id: Int) {
+        context.notificationManager.notify(id, build())
+    }
+
+    fun showBackupProgress(): NotificationCompat.Builder {
+        val builder = with(progressNotificationBuilder) {
+            setContentTitle(context.getString(R.string.creating_backup))
+
+            setProgress(0, 0, true)
+        }
+
+        builder.show(Notifications.ID_BACKUP_PROGRESS)
+
+        return builder
+    }
+
+    fun showBackupError(error: String?) {
+        context.notificationManager.cancel(Notifications.ID_BACKUP_PROGRESS)
+
+        with(completeNotificationBuilder) {
+            setContentTitle(context.getString(R.string.creating_backup_error))
+            setContentText(error)
+
+            show(Notifications.ID_BACKUP_COMPLETE)
+        }
+    }
+
+    fun showBackupComplete(unifile: UniFile) {
+        context.notificationManager.cancel(Notifications.ID_BACKUP_PROGRESS)
+
+        with(completeNotificationBuilder) {
+            setContentTitle(context.getString(R.string.backup_created))
+            setContentText(unifile.filePath ?: unifile.name)
+
+            // Clear old actions if they exist
+            clearActions()
+
+            addAction(
+                R.drawable.ic_share_24dp,
+                context.getString(R.string.action_share),
+                NotificationReceiver.shareBackupPendingBroadcast(context, unifile.uri, Notifications.ID_BACKUP_COMPLETE)
+            )
+
+            show(Notifications.ID_BACKUP_COMPLETE)
+        }
+    }
+
+    fun showRestoreProgress(content: String = "", progress: Int = 0, maxAmount: Int = 100): NotificationCompat.Builder {
+        val builder = with(progressNotificationBuilder) {
+            setContentTitle(context.getString(R.string.restoring_backup))
+
+            if (!preferences.hideNotificationContent()) {
+                setContentText(content)
+            }
+
+            setProgress(maxAmount, progress, false)
+            setOnlyAlertOnce(true)
+
+            // Clear old actions if they exist
+            clearActions()
+
+            addAction(
+                R.drawable.ic_close_24dp,
+                context.getString(R.string.action_stop),
+                NotificationReceiver.cancelRestorePendingBroadcast(context, Notifications.ID_RESTORE_PROGRESS)
+            )
+        }
+
+        builder.show(Notifications.ID_RESTORE_PROGRESS)
+
+        return builder
+    }
+
+    fun showRestoreError(error: String?) {
+        context.notificationManager.cancel(Notifications.ID_RESTORE_PROGRESS)
+
+        with(completeNotificationBuilder) {
+            setContentTitle(context.getString(R.string.restoring_backup_error))
+            setContentText(error)
+
+            show(Notifications.ID_RESTORE_COMPLETE)
+        }
+    }
+
+    fun showRestoreComplete(time: Long, errorCount: Int, path: String?, file: String?) {
+        context.notificationManager.cancel(Notifications.ID_RESTORE_PROGRESS)
+
+        val timeString = context.getString(
+            R.string.restore_duration,
+            TimeUnit.MILLISECONDS.toMinutes(time),
+            TimeUnit.MILLISECONDS.toSeconds(time) - TimeUnit.MINUTES.toSeconds(
+                TimeUnit.MILLISECONDS.toMinutes(time)
+            )
+        )
+
+        with(completeNotificationBuilder) {
+            setContentTitle(context.getString(R.string.restore_completed))
+            setContentText(context.resources.getQuantityString(R.plurals.restore_completed_message, errorCount, timeString, errorCount))
+
+            // Clear old actions if they exist
+            clearActions()
+
+            if (errorCount > 0 && !path.isNullOrEmpty() && !file.isNullOrEmpty()) {
+                val destFile = File(path, file)
+                val uri = destFile.getUriCompat(context)
+
+                val errorLogIntent = NotificationReceiver.openErrorLogPendingActivity(context, uri)
+                setContentIntent(errorLogIntent)
+                addAction(
+                    R.drawable.ic_folder_24dp,
+                    context.getString(R.string.action_show_errors),
+                    errorLogIntent,
+                )
+            }
+
+            show(Notifications.ID_RESTORE_COMPLETE)
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
@ -6,39 +6,24 @@ import android.content.Intent
 import android.net.Uri
 import android.os.IBinder
 import android.os.PowerManager
-import com.github.salomonbrys.kotson.fromJson
-import com.google.gson.JsonArray
-import com.google.gson.JsonParser
-import com.google.gson.stream.JsonReader
+import androidx.core.content.ContextCompat
 import eu.kanade.tachiyomi.R
-import eu.kanade.tachiyomi.data.backup.models.Backup.CATEGORIES
-import eu.kanade.tachiyomi.data.backup.models.Backup.CHAPTERS
-import eu.kanade.tachiyomi.data.backup.models.Backup.HISTORY
-import eu.kanade.tachiyomi.data.backup.models.Backup.MANGA
-import eu.kanade.tachiyomi.data.backup.models.Backup.MANGAS
-import eu.kanade.tachiyomi.data.backup.models.Backup.TRACK
-import eu.kanade.tachiyomi.data.backup.models.Backup.VERSION
-import eu.kanade.tachiyomi.data.backup.models.DHistory
-import eu.kanade.tachiyomi.data.database.DatabaseHelper
-import eu.kanade.tachiyomi.data.database.models.*
-import eu.kanade.tachiyomi.data.track.TrackManager
-import eu.kanade.tachiyomi.source.Source
-import eu.kanade.tachiyomi.util.chop
-import eu.kanade.tachiyomi.util.isServiceRunning
-import eu.kanade.tachiyomi.util.sendLocalBroadcast
-import rx.Observable
-import rx.Subscription
-import rx.schedulers.Schedulers
-import timber.log.Timber
-import uy.kohesive.injekt.injectLazy
-import java.io.File
-import java.text.SimpleDateFormat
-import java.util.*
-import java.util.concurrent.ExecutorService
-import java.util.concurrent.Executors
+import eu.kanade.tachiyomi.data.backup.full.FullBackupRestore
+import eu.kanade.tachiyomi.data.backup.legacy.LegacyBackupRestore
+import eu.kanade.tachiyomi.data.notification.Notifications
+import eu.kanade.tachiyomi.util.system.acquireWakeLock
+import eu.kanade.tachiyomi.util.system.isServiceRunning
+import eu.kanade.tachiyomi.util.system.logcat
+import kotlinx.coroutines.CoroutineExceptionHandler
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import logcat.LogPriority

 /**
- * Restores backup from json file
+ * Restores backup.
 */
 class BackupRestoreService : Service() {

@ -50,8 +35,8 @@ class BackupRestoreService : Service() {
         * @param context the application context.
         * @return true if the service is running, false otherwise.
         */
-        private fun isRunning(context: Context): Boolean =
-                context.isServiceRunning(BackupRestoreService::class.java)
+        fun isRunning(context: Context): Boolean =
+            context.isServiceRunning(BackupRestoreService::class.java)

        /**
         * Starts a service to restore a backup from Json
@ -59,12 +44,13 @@ class BackupRestoreService : Service() {
         * @param context context of application
         * @param uri path of Uri
         */
-        fun start(context: Context, uri: Uri) {
+        fun start(context: Context, uri: Uri, mode: Int) {
            if (!isRunning(context)) {
                val intent = Intent(context, BackupRestoreService::class.java).apply {
                    putExtra(BackupConst.EXTRA_URI, uri)
+                    putExtra(BackupConst.EXTRA_MODE, mode)
                }
-                context.startService(intent)
+                ContextCompat.startForegroundService(context, intent)
            }
        }

@ -75,6 +61,8 @@ class BackupRestoreService : Service() {
         */
        fun stop(context: Context) {
            context.stopService(Intent(context, BackupRestoreService::class.java))
+
+            BackupNotifier(context).showRestoreError(context.getString(R.string.restoring_backup_canceled))
        }
    }

@ -83,66 +71,36 @@ class BackupRestoreService : Service() {
     */
    private lateinit var wakeLock: PowerManager.WakeLock

-    /**
-     * Subscription where the update is done.
-     */
-    private var subscription: Subscription? = null
+    private lateinit var ioScope: CoroutineScope
+    private var backupRestore: AbstractBackupRestore<*>? = null
+    private lateinit var notifier: BackupNotifier

-    /**
-     * The progress of a backup restore
-     */
-    private var restoreProgress = 0
-
-    /**
-     * Amount of manga in Json file (needed for restore)
-     */
-    private var restoreAmount = 0
-
-    /**
-     * List containing errors
-     */
-    private val errors = mutableListOf<Pair<Date, String>>()
-
-    /**
-     * Backup manager
-     */
-    private lateinit var backupManager: BackupManager
-
-    /**
-     * Database
-     */
-    private val db: DatabaseHelper by injectLazy()
-
-    /**
-     * Tracking manager
-     */
-    internal val trackManager: TrackManager by injectLazy()
-
-
-    private lateinit var executor: ExecutorService
-
-    /**
-     * Method called when the service is created. It injects dependencies and acquire the wake lock.
-     */
    override fun onCreate() {
        super.onCreate()
-        wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).newWakeLock(
-                PowerManager.PARTIAL_WAKE_LOCK, "BackupRestoreService:WakeLock")
-        wakeLock.acquire()
-        executor = Executors.newSingleThreadExecutor()
+
+        ioScope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+        notifier = BackupNotifier(this)
+        wakeLock = acquireWakeLock(javaClass.name)
+
+        startForeground(Notifications.ID_RESTORE_PROGRESS, notifier.showRestoreProgress().build())
+    }
+
+    override fun stopService(name: Intent?): Boolean {
+        destroyJob()
+        return super.stopService(name)
    }

-    /**
-     * Method called when the service is destroyed. It destroys the running subscription and
-     * releases the wake lock.
-     */
    override fun onDestroy() {
-        subscription?.unsubscribe()
-        executor.shutdown() // must be called after unsubscribe
+        destroyJob()
+        super.onDestroy()
+    }
+
+    private fun destroyJob() {
+        backupRestore?.job?.cancel()
+        ioScope.cancel()
        if (wakeLock.isHeld) {
            wakeLock.release()
        }
-        super.onDestroy()
    }

    /**
@ -159,286 +117,34 @@ class BackupRestoreService : Service() {
     * @return the start value of the command.
     */
    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
-        if (intent == null) return Service.START_NOT_STICKY
+        val uri = intent?.getParcelableExtra<Uri>(BackupConst.EXTRA_URI) ?: return START_NOT_STICKY
+        val mode = intent.getIntExtra(BackupConst.EXTRA_MODE, BackupConst.BACKUP_TYPE_FULL)

-        val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)
+        // Cancel any previous job if needed.
+        backupRestore?.job?.cancel()

-        // Unsubscribe from any previous subscription if needed.
-        subscription?.unsubscribe()
+        backupRestore = when (mode) {
+            BackupConst.BACKUP_TYPE_FULL -> FullBackupRestore(this, notifier)
+            else -> LegacyBackupRestore(this, notifier)
+        }

-        subscription = Observable.using(
-                { db.lowLevel().beginTransaction() },
-                { getRestoreObservable(uri).doOnNext { db.lowLevel().setTransactionSuccessful() } },
-                { executor.execute { db.lowLevel().endTransaction() } })
-                .doAfterTerminate { stopSelf(startId) }
-                .subscribeOn(Schedulers.from(executor))
-                .subscribe()
+        val handler = CoroutineExceptionHandler { _, exception ->
+            logcat(LogPriority.ERROR, exception)
+            backupRestore?.writeErrorLog()

-        return Service.START_NOT_STICKY
-    }
-
-    /**
-     * Returns an [Observable] containing restore process.
-     *
-     * @param uri restore file
-     * @return [Observable<Manga>]
-     */
-    private fun getRestoreObservable(uri: Uri): Observable<List<Manga>> {
-        val startTime = System.currentTimeMillis()
-
-        return Observable.just(Unit)
-                .map {
-                    val reader = JsonReader(contentResolver.openInputStream(uri).bufferedReader())
-                    val json = JsonParser().parse(reader).asJsonObject
-
-                    // Get parser version
-                    val version = json.get(VERSION)?.asInt ?: 1
-
-                    // Initialize manager
-                    backupManager = BackupManager(this, version)
-
-                    val mangasJson = json.get(MANGAS).asJsonArray
-
-                    restoreAmount = mangasJson.size() + 1 // +1 for categories
-                    restoreProgress = 0
-                    errors.clear()
-
-                    // Restore categories
-                    json.get(CATEGORIES)?.let {
-                        backupManager.restoreCategories(it.asJsonArray)
-                        restoreProgress += 1
-                        showRestoreProgress(restoreProgress, restoreAmount, "Categories added", errors.size)
-                    }
-
-                    mangasJson
-                }
-                .flatMap { Observable.from(it) }
-                .concatMap {
-                    val obj = it.asJsonObject
-                    val manga = backupManager.parser.fromJson<MangaImpl>(obj.get(MANGA))
-                    val chapters = backupManager.parser.fromJson<List<ChapterImpl>>(obj.get(CHAPTERS) ?: JsonArray())
-                    val categories = backupManager.parser.fromJson<List<String>>(obj.get(CATEGORIES) ?: JsonArray())
-                    val history = backupManager.parser.fromJson<List<DHistory>>(obj.get(HISTORY) ?: JsonArray())
-                    val tracks = backupManager.parser.fromJson<List<TrackImpl>>(obj.get(TRACK) ?: JsonArray())
-
-                    val observable = getMangaRestoreObservable(manga, chapters, categories, history, tracks)
-                    if (observable != null) {
-                        observable
-                    } else {
-                        errors.add(Date() to "${manga.title} - ${getString(R.string.source_not_found)}")
-                        restoreProgress += 1
-                        val content = getString(R.string.dialog_restoring_source_not_found, manga.title.chop(15))
-                        showRestoreProgress(restoreProgress, restoreAmount, manga.title, errors.size, content)
-                        Observable.just(manga)
-                    }
-                }
-                .toList()
-                .doOnNext {
-                    val endTime = System.currentTimeMillis()
-                    val time = endTime - startTime
-                    val logFile = writeErrorLog()
-                    val completeIntent = Intent(BackupConst.INTENT_FILTER).apply {
-                        putExtra(BackupConst.EXTRA_TIME, time)
-                        putExtra(BackupConst.EXTRA_ERRORS, errors.size)
-                        putExtra(BackupConst.EXTRA_ERROR_FILE_PATH, logFile.parent)
-                        putExtra(BackupConst.EXTRA_ERROR_FILE, logFile.name)
-                        putExtra(BackupConst.ACTION, BackupConst.ACTION_RESTORE_COMPLETED_DIALOG)
-                    }
-                    sendLocalBroadcast(completeIntent)
-
-                }
-                .doOnError { error ->
-                    Timber.e(error)
-                    writeErrorLog()
-                    val errorIntent = Intent(BackupConst.INTENT_FILTER).apply {
-                        putExtra(BackupConst.ACTION, BackupConst.ACTION_ERROR_RESTORE_DIALOG)
-                        putExtra(BackupConst.EXTRA_ERROR_MESSAGE, error.message)
-                    }
-                    sendLocalBroadcast(errorIntent)
-                }
-                .onErrorReturn { emptyList() }
-    }
-
-    /**
-     * Write errors to error log
-     */
-    private fun writeErrorLog(): File {
-        try {
-            if (errors.isNotEmpty()) {
-                val destFile = File(externalCacheDir, "tachiyomi_restore.log")
-                val sdf = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault())
-
-                destFile.bufferedWriter().use { out ->
-                    errors.forEach { (date, message) ->
-                        out.write("[${sdf.format(date)}] $message\n")
-                    }
-                }
-                return destFile
+            notifier.showRestoreError(exception.message)
+            stopSelf(startId)
+        }
+        val job = ioScope.launch(handler) {
+            if (backupRestore?.restoreBackup(uri) == false) {
+                notifier.showRestoreError(getString(R.string.restoring_backup_canceled))
            }
-        } catch (e: Exception) {
-            // Empty
        }
-        return File("")
-    }
-
-    /**
-     * Returns a manga restore observable
-     *
-     * @param manga manga data from json
-     * @param chapters chapters data from json
-     * @param categories categories data from json
-     * @param history history data from json
-     * @param tracks tracking data from json
-     * @return [Observable] containing manga restore information
-     */
-    private fun getMangaRestoreObservable(manga: Manga, chapters: List<Chapter>,
-                                          categories: List<String>, history: List<DHistory>,
-                                          tracks: List<Track>): Observable<Manga>? {
-        // Get source
-        val source = backupManager.sourceManager.get(manga.source) ?: return null
-        val dbManga = backupManager.getMangaFromDatabase(manga)
-
-        return if (dbManga == null) {
-            // Manga not in database
-            mangaFetchObservable(source, manga, chapters, categories, history, tracks)
-        } else { // Manga in database
-            // Copy information from manga already in database
-            backupManager.restoreMangaNoFetch(manga, dbManga)
-            // Fetch rest of manga information
-            mangaNoFetchObservable(source, manga, chapters, categories, history, tracks)
+        job.invokeOnCompletion {
+            stopSelf(startId)
        }
+        backupRestore?.job = job
+
+        return START_NOT_STICKY
    }
-
-    /**
-     * [Observable] that fetches manga information
-     *
-     * @param manga manga that needs updating
-     * @param chapters chapters of manga that needs updating
-     * @param categories categories that need updating
-     */
-    private fun mangaFetchObservable(source: Source, manga: Manga, chapters: List<Chapter>,
-                                     categories: List<String>, history: List<DHistory>,
-                                     tracks: List<Track>): Observable<Manga> {
-        return backupManager.restoreMangaFetchObservable(source, manga)
-                .onErrorReturn {
-                    errors.add(Date() to "${manga.title} - ${it.message}")
-                    manga
-                }
-                .filter { it.id != null }
-                .flatMap {
-                    chapterFetchObservable(source, it, chapters)
-                            // Convert to the manga that contains new chapters.
-                            .map { manga }
-                }
-                .doOnNext {
-                    restoreExtraForManga(it, categories, history, tracks)
-                }
-                .flatMap {
-                    trackingFetchObservable(it, tracks)
-                            // Convert to the manga that contains new chapters.
-                            .map { manga }
-                }
-                .doOnCompleted {
-                    restoreProgress += 1
-                    showRestoreProgress(restoreProgress, restoreAmount, manga.title, errors.size)
-                }
-    }
-
-    private fun mangaNoFetchObservable(source: Source, backupManga: Manga, chapters: List<Chapter>,
-                                       categories: List<String>, history: List<DHistory>,
-                                       tracks: List<Track>): Observable<Manga> {
-
-        return Observable.just(backupManga)
-                .flatMap { manga ->
-                    if (!backupManager.restoreChaptersForManga(manga, chapters)) {
-                        chapterFetchObservable(source, manga, chapters)
-                                .map { manga }
-                    } else {
-                        Observable.just(manga)
-                    }
-                }
-                .doOnNext {
-                    restoreExtraForManga(it, categories, history, tracks)
-                }
-                .flatMap { manga ->
-                    trackingFetchObservable(manga, tracks)
-                            // Convert to the manga that contains new chapters.
-                            .map { manga }
-                }
-                .doOnCompleted {
-                    restoreProgress += 1
-                    showRestoreProgress(restoreProgress, restoreAmount, backupManga.title, errors.size)
-                }
-    }
-
-    private fun restoreExtraForManga(manga: Manga, categories: List<String>, history: List<DHistory>, tracks: List<Track>) {
-        // Restore categories
-        backupManager.restoreCategoriesForManga(manga, categories)
-
-        // Restore history
-        backupManager.restoreHistoryForManga(history)
-
-        // Restore tracking
-        backupManager.restoreTrackForManga(manga, tracks)
-    }
-
-    /**
-     * [Observable] that fetches chapter information
-     *
-     * @param source source of manga
-     * @param manga manga that needs updating
-     * @return [Observable] that contains manga
-     */
-    private fun chapterFetchObservable(source: Source, manga: Manga, chapters: List<Chapter>): Observable<Pair<List<Chapter>, List<Chapter>>> {
-        return backupManager.restoreChapterFetchObservable(source, manga, chapters)
-                // If there's any error, return empty update and continue.
-                .onErrorReturn {
-                    errors.add(Date() to "${manga.title} - ${it.message}")
-                    Pair(emptyList(), emptyList())
-                }
-    }
-
-    /**
-     * [Observable] that refreshes tracking information
-     * @param manga manga that needs updating.
-     * @param tracks list containing tracks from restore file.
-     * @return [Observable] that contains updated track item
-     */
-    private fun trackingFetchObservable(manga: Manga, tracks: List<Track>): Observable<Track> {
-        return Observable.from(tracks)
-                .concatMap { track ->
-                    val service = trackManager.getService(track.sync_id)
-                    if (service != null && service.isLogged) {
-                        service.refresh(track)
-                                .doOnNext { db.insertTrack(it).executeAsBlocking() }
-                                .onErrorReturn {
-                                    errors.add(Date() to "${manga.title} - ${it.message}")
-                                    track
-                                }
-                    } else {
-                        errors.add(Date() to "${manga.title} - ${service?.name} not logged in")
-                        Observable.empty()
-                    }
-                }
-    }
-
-    /**
-     * Called to update dialog in [BackupConst]
-     *
-     * @param progress restore progress
-     * @param amount total restoreAmount of manga
-     * @param title title of restored manga
-     */
-    private fun showRestoreProgress(progress: Int, amount: Int, title: String, errors: Int,
-                                    content: String = getString(R.string.dialog_restoring_backup, title.chop(15))) {
-        val intent = Intent(BackupConst.INTENT_FILTER).apply {
-            putExtra(BackupConst.EXTRA_PROGRESS, progress)
-            putExtra(BackupConst.EXTRA_AMOUNT, amount)
-            putExtra(BackupConst.EXTRA_CONTENT, content)
-            putExtra(BackupConst.EXTRA_ERRORS, errors)
-            putExtra(BackupConst.ACTION, BackupConst.ACTION_SET_PROGRESS_DIALOG)
-        }
-        sendLocalBroadcast(intent)
-    }
-
-}
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/FullBackupManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/FullBackupManager.kt
@ -0,0 +1,361 @@
+package eu.kanade.tachiyomi.data.backup.full
+
+import android.content.Context
+import android.net.Uri
+import com.hippo.unifile.UniFile
+import eu.kanade.tachiyomi.data.backup.AbstractBackupManager
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CATEGORY
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CATEGORY_MASK
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CHAPTER
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_CHAPTER_MASK
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_HISTORY
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_HISTORY_MASK
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_TRACK
+import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_TRACK_MASK
+import eu.kanade.tachiyomi.data.backup.full.models.Backup
+import eu.kanade.tachiyomi.data.backup.full.models.BackupCategory
+import eu.kanade.tachiyomi.data.backup.full.models.BackupChapter
+import eu.kanade.tachiyomi.data.backup.full.models.BackupFull
+import eu.kanade.tachiyomi.data.backup.full.models.BackupHistory
+import eu.kanade.tachiyomi.data.backup.full.models.BackupManga
+import eu.kanade.tachiyomi.data.backup.full.models.BackupSerializer
+import eu.kanade.tachiyomi.data.backup.full.models.BackupSource
+import eu.kanade.tachiyomi.data.backup.full.models.BackupTracking
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.History
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.MangaCategory
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.util.system.logcat
+import kotlinx.serialization.protobuf.ProtoBuf
+import logcat.LogPriority
+import okio.buffer
+import okio.gzip
+import okio.sink
+import kotlin.math.max
+
+class FullBackupManager(context: Context) : AbstractBackupManager(context) {
+
+    val parser = ProtoBuf
+
+    /**
+     * Create backup Json file from database
+     *
+     * @param uri path of Uri
+     * @param isJob backup called from job
+     */
+    override fun createBackup(uri: Uri, flags: Int, isJob: Boolean): String {
+        // Create root object
+        var backup: Backup? = null
+
+        databaseHelper.inTransaction {
+            val databaseManga = getFavoriteManga()
+
+            backup = Backup(
+                backupManga(databaseManga, flags),
+                backupCategories(),
+                emptyList(),
+                backupExtensionInfo(databaseManga)
+            )
+        }
+
+        var file: UniFile? = null
+        try {
+            file = (
+                if (isJob) {
+                    // Get dir of file and create
+                    var dir = UniFile.fromUri(context, uri)
+                    dir = dir.createDirectory("automatic")
+
+                    // Delete older backups
+                    val numberOfBackups = numberOfBackups()
+                    val backupRegex = Regex("""tachiyomi_\d+-\d+-\d+_\d+-\d+.proto.gz""")
+                    dir.listFiles { _, filename -> backupRegex.matches(filename) }
+                        .orEmpty()
+                        .sortedByDescending { it.name }
+                        .drop(numberOfBackups - 1)
+                        .forEach { it.delete() }
+
+                    // Create new file to place backup
+                    dir.createFile(BackupFull.getDefaultFilename())
+                } else {
+                    UniFile.fromUri(context, uri)
+                }
+                )
+                ?: throw Exception("Couldn't create backup file")
+
+            val byteArray = parser.encodeToByteArray(BackupSerializer, backup!!)
+            file.openOutputStream().sink().gzip().buffer().use { it.write(byteArray) }
+            val fileUri = file.uri
+
+            // Make sure it's a valid backup file
+            FullBackupRestoreValidator().validate(context, fileUri)
+
+            return fileUri.toString()
+        } catch (e: Exception) {
+            logcat(LogPriority.ERROR, e)
+            file?.delete()
+            throw e
+        }
+    }
+
+    private fun backupManga(mangas: List<Manga>, flags: Int): List<BackupManga> {
+        return mangas.map {
+            backupMangaObject(it, flags)
+        }
+    }
+
+    private fun backupExtensionInfo(mangas: List<Manga>): List<BackupSource> {
+        return mangas
+            .asSequence()
+            .map { it.source }
+            .distinct()
+            .map { sourceManager.getOrStub(it) }
+            .map { BackupSource.copyFrom(it) }
+            .toList()
+    }
+
+    /**
+     * Backup the categories of library
+     *
+     * @return list of [BackupCategory] to be backed up
+     */
+    private fun backupCategories(): List<BackupCategory> {
+        return databaseHelper.getCategories()
+            .executeAsBlocking()
+            .map { BackupCategory.copyFrom(it) }
+    }
+
+    /**
+     * Convert a manga to Json
+     *
+     * @param manga manga that gets converted
+     * @param options options for the backup
+     * @return [BackupManga] containing manga in a serializable form
+     */
+    private fun backupMangaObject(manga: Manga, options: Int): BackupManga {
+        // Entry for this manga
+        val mangaObject = BackupManga.copyFrom(manga)
+
+        // Check if user wants chapter information in backup
+        if (options and BACKUP_CHAPTER_MASK == BACKUP_CHAPTER) {
+            // Backup all the chapters
+            val chapters = databaseHelper.getChapters(manga).executeAsBlocking()
+            if (chapters.isNotEmpty()) {
+                mangaObject.chapters = chapters.map { BackupChapter.copyFrom(it) }
+            }
+        }
+
+        // Check if user wants category information in backup
+        if (options and BACKUP_CATEGORY_MASK == BACKUP_CATEGORY) {
+            // Backup categories for this manga
+            val categoriesForManga = databaseHelper.getCategoriesForManga(manga).executeAsBlocking()
+            if (categoriesForManga.isNotEmpty()) {
+                mangaObject.categories = categoriesForManga.mapNotNull { it.order }
+            }
+        }
+
+        // Check if user wants track information in backup
+        if (options and BACKUP_TRACK_MASK == BACKUP_TRACK) {
+            val tracks = databaseHelper.getTracks(manga).executeAsBlocking()
+            if (tracks.isNotEmpty()) {
+                mangaObject.tracking = tracks.map { BackupTracking.copyFrom(it) }
+            }
+        }
+
+        // Check if user wants history information in backup
+        if (options and BACKUP_HISTORY_MASK == BACKUP_HISTORY) {
+            val historyForManga = databaseHelper.getHistoryByMangaId(manga.id!!).executeAsBlocking()
+            if (historyForManga.isNotEmpty()) {
+                val history = historyForManga.mapNotNull { history ->
+                    val url = databaseHelper.getChapter(history.chapter_id).executeAsBlocking()?.url
+                    url?.let { BackupHistory(url, history.last_read) }
+                }
+                if (history.isNotEmpty()) {
+                    mangaObject.history = history
+                }
+            }
+        }
+
+        return mangaObject
+    }
+
+    fun restoreMangaNoFetch(manga: Manga, dbManga: Manga) {
+        manga.id = dbManga.id
+        manga.copyFrom(dbManga)
+        insertManga(manga)
+    }
+
+    /**
+     * Fetches manga information
+     *
+     * @param manga manga that needs updating
+     * @return Updated manga info.
+     */
+    fun restoreManga(manga: Manga): Manga {
+        return manga.also {
+            it.initialized = it.description != null
+            it.id = insertManga(it)
+        }
+    }
+
+    /**
+     * Restore the categories from Json
+     *
+     * @param backupCategories list containing categories
+     */
+    internal fun restoreCategories(backupCategories: List<BackupCategory>) {
+        // Get categories from file and from db
+        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
+
+        // Iterate over them
+        backupCategories.map { it.getCategoryImpl() }.forEach { category ->
+            // Used to know if the category is already in the db
+            var found = false
+            for (dbCategory in dbCategories) {
+                // If the category is already in the db, assign the id to the file's category
+                // and do nothing
+                if (category.name == dbCategory.name) {
+                    category.id = dbCategory.id
+                    found = true
+                    break
+                }
+            }
+            // If the category isn't in the db, remove the id and insert a new category
+            // Store the inserted id in the category
+            if (!found) {
+                // Let the db assign the id
+                category.id = null
+                val result = databaseHelper.insertCategory(category).executeAsBlocking()
+                category.id = result.insertedId()?.toInt()
+            }
+        }
+    }
+
+    /**
+     * Restores the categories a manga is in.
+     *
+     * @param manga the manga whose categories have to be restored.
+     * @param categories the categories to restore.
+     */
+    internal fun restoreCategoriesForManga(manga: Manga, categories: List<Int>, backupCategories: List<BackupCategory>) {
+        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
+        val mangaCategoriesToUpdate = ArrayList<MangaCategory>(categories.size)
+        categories.forEach { backupCategoryOrder ->
+            backupCategories.firstOrNull {
+                it.order == backupCategoryOrder
+            }?.let { backupCategory ->
+                dbCategories.firstOrNull { dbCategory ->
+                    dbCategory.name == backupCategory.name
+                }?.let { dbCategory ->
+                    mangaCategoriesToUpdate += MangaCategory.create(manga, dbCategory)
+                }
+            }
+        }
+
+        // Update database
+        if (mangaCategoriesToUpdate.isNotEmpty()) {
+            databaseHelper.deleteOldMangasCategories(listOf(manga)).executeAsBlocking()
+            databaseHelper.insertMangasCategories(mangaCategoriesToUpdate).executeAsBlocking()
+        }
+    }
+
+    /**
+     * Restore history from Json
+     *
+     * @param history list containing history to be restored
+     */
+    internal fun restoreHistoryForManga(history: List<BackupHistory>) {
+        // List containing history to be updated
+        val historyToBeUpdated = ArrayList<History>(history.size)
+        for ((url, lastRead) in history) {
+            val dbHistory = databaseHelper.getHistoryByChapterUrl(url).executeAsBlocking()
+            // Check if history already in database and update
+            if (dbHistory != null) {
+                dbHistory.apply {
+                    last_read = max(lastRead, dbHistory.last_read)
+                }
+                historyToBeUpdated.add(dbHistory)
+            } else {
+                // If not in database create
+                databaseHelper.getChapter(url).executeAsBlocking()?.let {
+                    val historyToAdd = History.create(it).apply {
+                        last_read = lastRead
+                    }
+                    historyToBeUpdated.add(historyToAdd)
+                }
+            }
+        }
+        databaseHelper.updateHistoryLastRead(historyToBeUpdated).executeAsBlocking()
+    }
+
+    /**
+     * Restores the sync of a manga.
+     *
+     * @param manga the manga whose sync have to be restored.
+     * @param tracks the track list to restore.
+     */
+    internal fun restoreTrackForManga(manga: Manga, tracks: List<Track>) {
+        // Fix foreign keys with the current manga id
+        tracks.map { it.manga_id = manga.id!! }
+
+        // Get tracks from database
+        val dbTracks = databaseHelper.getTracks(manga).executeAsBlocking()
+        val trackToUpdate = mutableListOf<Track>()
+
+        tracks.forEach { track ->
+            var isInDatabase = false
+            for (dbTrack in dbTracks) {
+                if (track.sync_id == dbTrack.sync_id) {
+                    // The sync is already in the db, only update its fields
+                    if (track.media_id != dbTrack.media_id) {
+                        dbTrack.media_id = track.media_id
+                    }
+                    if (track.library_id != dbTrack.library_id) {
+                        dbTrack.library_id = track.library_id
+                    }
+                    dbTrack.last_chapter_read = max(dbTrack.last_chapter_read, track.last_chapter_read)
+                    isInDatabase = true
+                    trackToUpdate.add(dbTrack)
+                    break
+                }
+            }
+            if (!isInDatabase) {
+                // Insert new sync. Let the db assign the id
+                track.id = null
+                trackToUpdate.add(track)
+            }
+        }
+        // Update database
+        if (trackToUpdate.isNotEmpty()) {
+            databaseHelper.insertTracks(trackToUpdate).executeAsBlocking()
+        }
+    }
+
+    internal fun restoreChaptersForManga(manga: Manga, chapters: List<Chapter>) {
+        val dbChapters = databaseHelper.getChapters(manga).executeAsBlocking()
+
+        chapters.forEach { chapter ->
+            val dbChapter = dbChapters.find { it.url == chapter.url }
+            if (dbChapter != null) {
+                chapter.id = dbChapter.id
+                chapter.copyFrom(dbChapter)
+                if (dbChapter.read && !chapter.read) {
+                    chapter.read = dbChapter.read
+                    chapter.last_page_read = dbChapter.last_page_read
+                } else if (chapter.last_page_read == 0 && dbChapter.last_page_read != 0) {
+                    chapter.last_page_read = dbChapter.last_page_read
+                }
+                if (!chapter.bookmark && dbChapter.bookmark) {
+                    chapter.bookmark = dbChapter.bookmark
+                }
+            }
+
+            chapter.manga_id = manga.id
+        }
+
+        val newChapters = chapters.groupBy { it.id != null }
+        newChapters[true]?.let { updateKnownChapters(it) }
+        newChapters[false]?.let { insertChapters(it) }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/FullBackupRestore.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/FullBackupRestore.kt
@ -0,0 +1,163 @@
+package eu.kanade.tachiyomi.data.backup.full
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.backup.AbstractBackupRestore
+import eu.kanade.tachiyomi.data.backup.BackupNotifier
+import eu.kanade.tachiyomi.data.backup.full.models.BackupCategory
+import eu.kanade.tachiyomi.data.backup.full.models.BackupHistory
+import eu.kanade.tachiyomi.data.backup.full.models.BackupManga
+import eu.kanade.tachiyomi.data.backup.full.models.BackupSerializer
+import eu.kanade.tachiyomi.data.backup.full.models.BackupSource
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.Track
+import okio.buffer
+import okio.gzip
+import okio.source
+import java.util.Date
+
+class FullBackupRestore(context: Context, notifier: BackupNotifier) : AbstractBackupRestore<FullBackupManager>(context, notifier) {
+
+    override suspend fun performRestore(uri: Uri): Boolean {
+        backupManager = FullBackupManager(context)
+
+        val backupString = context.contentResolver.openInputStream(uri)!!.source().gzip().buffer().use { it.readByteArray() }
+        val backup = backupManager.parser.decodeFromByteArray(BackupSerializer, backupString)
+
+        restoreAmount = backup.backupManga.size + 1 // +1 for categories
+
+        // Restore categories
+        if (backup.backupCategories.isNotEmpty()) {
+            restoreCategories(backup.backupCategories)
+        }
+
+        // Store source mapping for error messages
+        var backupMaps = backup.backupBrokenSources.map { BackupSource(it.name, it.sourceId) } + backup.backupSources
+        sourceMapping = backupMaps.map { it.sourceId to it.name }.toMap()
+
+        // Restore individual manga
+        backup.backupManga.forEach {
+            if (job?.isActive != true) {
+                return false
+            }
+
+            restoreManga(it, backup.backupCategories)
+        }
+
+        // TODO: optionally trigger online library + tracker update
+
+        return true
+    }
+
+    private fun restoreCategories(backupCategories: List<BackupCategory>) {
+        db.inTransaction {
+            backupManager.restoreCategories(backupCategories)
+        }
+
+        restoreProgress += 1
+        showRestoreProgress(restoreProgress, restoreAmount, context.getString(R.string.categories))
+    }
+
+    private fun restoreManga(backupManga: BackupManga, backupCategories: List<BackupCategory>) {
+        val manga = backupManga.getMangaImpl()
+        val chapters = backupManga.getChaptersImpl()
+        val categories = backupManga.categories
+        val history = backupManga.brokenHistory.map { BackupHistory(it.url, it.lastRead) } + backupManga.history
+        val tracks = backupManga.getTrackingImpl()
+
+        try {
+            restoreMangaData(manga, chapters, categories, history, tracks, backupCategories)
+        } catch (e: Exception) {
+            val sourceName = sourceMapping[manga.source] ?: manga.source.toString()
+            errors.add(Date() to "${manga.title} [$sourceName]: ${e.message}")
+        }
+
+        restoreProgress += 1
+        showRestoreProgress(restoreProgress, restoreAmount, manga.title)
+    }
+
+    /**
+     * Returns a manga restore observable
+     *
+     * @param manga manga data from json
+     * @param chapters chapters data from json
+     * @param categories categories data from json
+     * @param history history data from json
+     * @param tracks tracking data from json
+     */
+    private fun restoreMangaData(
+        manga: Manga,
+        chapters: List<Chapter>,
+        categories: List<Int>,
+        history: List<BackupHistory>,
+        tracks: List<Track>,
+        backupCategories: List<BackupCategory>
+    ) {
+        db.inTransaction {
+            val dbManga = backupManager.getMangaFromDatabase(manga)
+            if (dbManga == null) {
+                // Manga not in database
+                restoreMangaFetch(manga, chapters, categories, history, tracks, backupCategories)
+            } else {
+                // Manga in database
+                // Copy information from manga already in database
+                backupManager.restoreMangaNoFetch(manga, dbManga)
+                // Fetch rest of manga information
+                restoreMangaNoFetch(manga, chapters, categories, history, tracks, backupCategories)
+            }
+        }
+    }
+
+    /**
+     * Fetches manga information
+     *
+     * @param manga manga that needs updating
+     * @param chapters chapters of manga that needs updating
+     * @param categories categories that need updating
+     */
+    private fun restoreMangaFetch(
+        manga: Manga,
+        chapters: List<Chapter>,
+        categories: List<Int>,
+        history: List<BackupHistory>,
+        tracks: List<Track>,
+        backupCategories: List<BackupCategory>
+    ) {
+        try {
+            val fetchedManga = backupManager.restoreManga(manga)
+            fetchedManga.id ?: return
+
+            backupManager.restoreChaptersForManga(fetchedManga, chapters)
+
+            restoreExtraForManga(fetchedManga, categories, history, tracks, backupCategories)
+        } catch (e: Exception) {
+            errors.add(Date() to "${manga.title} - ${e.message}")
+        }
+    }
+
+    private fun restoreMangaNoFetch(
+        backupManga: Manga,
+        chapters: List<Chapter>,
+        categories: List<Int>,
+        history: List<BackupHistory>,
+        tracks: List<Track>,
+        backupCategories: List<BackupCategory>
+    ) {
+        backupManager.restoreChaptersForManga(backupManga, chapters)
+
+        restoreExtraForManga(backupManga, categories, history, tracks, backupCategories)
+    }
+
+    private fun restoreExtraForManga(manga: Manga, categories: List<Int>, history: List<BackupHistory>, tracks: List<Track>, backupCategories: List<BackupCategory>) {
+        // Restore categories
+        backupManager.restoreCategoriesForManga(manga, categories, backupCategories)
+
+        // Restore history
+        backupManager.restoreHistoryForManga(history)
+
+        // Restore tracking
+        backupManager.restoreTrackForManga(manga, tracks)
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/FullBackupRestoreValidator.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/FullBackupRestoreValidator.kt
@ -0,0 +1,55 @@
+package eu.kanade.tachiyomi.data.backup.full
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.backup.AbstractBackupRestoreValidator
+import eu.kanade.tachiyomi.data.backup.ValidatorParseException
+import eu.kanade.tachiyomi.data.backup.full.models.BackupSerializer
+import okio.buffer
+import okio.gzip
+import okio.source
+
+class FullBackupRestoreValidator : AbstractBackupRestoreValidator() {
+
+    /**
+     * Checks for critical backup file data.
+     *
+     * @throws Exception if manga cannot be found.
+     * @return List of missing sources or missing trackers.
+     */
+    override fun validate(context: Context, uri: Uri): Results {
+        val backupManager = FullBackupManager(context)
+
+        val backup = try {
+            val backupString =
+                context.contentResolver.openInputStream(uri)!!.source().gzip().buffer()
+                    .use { it.readByteArray() }
+            backupManager.parser.decodeFromByteArray(BackupSerializer, backupString)
+        } catch (e: Exception) {
+            throw ValidatorParseException(e)
+        }
+
+        if (backup.backupManga.isEmpty()) {
+            throw Exception(context.getString(R.string.invalid_backup_file_missing_manga))
+        }
+
+        val sources = backup.backupSources.associate { it.sourceId to it.name }
+        val missingSources = sources
+            .filter { sourceManager.get(it.key) == null }
+            .values
+            .sorted()
+
+        val trackers = backup.backupManga
+            .flatMap { it.tracking }
+            .map { it.syncId }
+            .distinct()
+        val missingTrackers = trackers
+            .mapNotNull { trackManager.getService(it) }
+            .filter { !it.isLogged }
+            .map { context.getString(it.nameRes()) }
+            .sorted()
+
+        return Results(missingSources, missingTrackers)
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/Backup.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/Backup.kt
@ -0,0 +1,13 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@Serializable
+data class Backup(
+    @ProtoNumber(1) val backupManga: List<BackupManga>,
+    @ProtoNumber(2) var backupCategories: List<BackupCategory> = emptyList(),
+    // Bump by 100 to specify this is a 0.x value
+    @ProtoNumber(100) var backupBrokenSources: List<BrokenBackupSource> = emptyList(),
+    @ProtoNumber(101) var backupSources: List<BackupSource> = emptyList()
+)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupCategory.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupCategory.kt
@ -0,0 +1,33 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.CategoryImpl
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@Serializable
+class BackupCategory(
+    @ProtoNumber(1) var name: String,
+    @ProtoNumber(2) var order: Int = 0,
+    // @ProtoNumber(3) val updateInterval: Int = 0, 1.x value not used in 0.x
+    // Bump by 100 to specify this is a 0.x value
+    @ProtoNumber(100) var flags: Int = 0,
+) {
+    fun getCategoryImpl(): CategoryImpl {
+        return CategoryImpl().apply {
+            name = this@BackupCategory.name
+            flags = this@BackupCategory.flags
+            order = this@BackupCategory.order
+        }
+    }
+
+    companion object {
+        fun copyFrom(category: Category): BackupCategory {
+            return BackupCategory(
+                name = category.name,
+                order = category.order,
+                flags = category.flags
+            )
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupChapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupChapter.kt
@ -0,0 +1,56 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.ChapterImpl
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@Serializable
+data class BackupChapter(
+    // in 1.x some of these values have different names
+    // url is called key in 1.x
+    @ProtoNumber(1) var url: String,
+    @ProtoNumber(2) var name: String,
+    @ProtoNumber(3) var scanlator: String? = null,
+    @ProtoNumber(4) var read: Boolean = false,
+    @ProtoNumber(5) var bookmark: Boolean = false,
+    // lastPageRead is called progress in 1.x
+    @ProtoNumber(6) var lastPageRead: Int = 0,
+    @ProtoNumber(7) var dateFetch: Long = 0,
+    @ProtoNumber(8) var dateUpload: Long = 0,
+    // chapterNumber is called number is 1.x
+    @ProtoNumber(9) var chapterNumber: Float = 0F,
+    @ProtoNumber(10) var sourceOrder: Int = 0,
+) {
+    fun toChapterImpl(): ChapterImpl {
+        return ChapterImpl().apply {
+            url = this@BackupChapter.url
+            name = this@BackupChapter.name
+            chapter_number = this@BackupChapter.chapterNumber
+            scanlator = this@BackupChapter.scanlator
+            read = this@BackupChapter.read
+            bookmark = this@BackupChapter.bookmark
+            last_page_read = this@BackupChapter.lastPageRead
+            date_fetch = this@BackupChapter.dateFetch
+            date_upload = this@BackupChapter.dateUpload
+            source_order = this@BackupChapter.sourceOrder
+        }
+    }
+
+    companion object {
+        fun copyFrom(chapter: Chapter): BackupChapter {
+            return BackupChapter(
+                url = chapter.url,
+                name = chapter.name,
+                chapterNumber = chapter.chapter_number,
+                scanlator = chapter.scanlator,
+                read = chapter.read,
+                bookmark = chapter.bookmark,
+                lastPageRead = chapter.last_page_read,
+                dateFetch = chapter.date_fetch,
+                dateUpload = chapter.date_upload,
+                sourceOrder = chapter.source_order
+            )
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupFull.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupFull.kt
@ -0,0 +1,12 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+object BackupFull {
+    fun getDefaultFilename(): String {
+        val date = SimpleDateFormat("yyyy-MM-dd_HH-mm", Locale.getDefault()).format(Date())
+        return "tachiyomi_$date.proto.gz"
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupHistory.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupHistory.kt
@ -0,0 +1,16 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@Serializable
+data class BrokenBackupHistory(
+    @ProtoNumber(0) var url: String,
+    @ProtoNumber(1) var lastRead: Long
+)
+
+@Serializable
+data class BackupHistory(
+    @ProtoNumber(1) var url: String,
+    @ProtoNumber(2) var lastRead: Long
+)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupManga.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupManga.kt
@ -0,0 +1,90 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import eu.kanade.tachiyomi.data.database.models.ChapterImpl
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.MangaImpl
+import eu.kanade.tachiyomi.data.database.models.TrackImpl
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@Serializable
+data class BackupManga(
+    // in 1.x some of these values have different names
+    @ProtoNumber(1) var source: Long,
+    // url is called key in 1.x
+    @ProtoNumber(2) var url: String,
+    @ProtoNumber(3) var title: String = "",
+    @ProtoNumber(4) var artist: String? = null,
+    @ProtoNumber(5) var author: String? = null,
+    @ProtoNumber(6) var description: String? = null,
+    @ProtoNumber(7) var genre: List<String> = emptyList(),
+    @ProtoNumber(8) var status: Int = 0,
+    // thumbnailUrl is called cover in 1.x
+    @ProtoNumber(9) var thumbnailUrl: String? = null,
+    // @ProtoNumber(10) val customCover: String = "", 1.x value, not used in 0.x
+    // @ProtoNumber(11) val lastUpdate: Long = 0, 1.x value, not used in 0.x
+    // @ProtoNumber(12) val lastInit: Long = 0, 1.x value, not used in 0.x
+    @ProtoNumber(13) var dateAdded: Long = 0,
+    @ProtoNumber(14) var viewer: Int = 0, // Replaced by viewer_flags
+    // @ProtoNumber(15) val flags: Int = 0, 1.x value, not used in 0.x
+    @ProtoNumber(16) var chapters: List<BackupChapter> = emptyList(),
+    @ProtoNumber(17) var categories: List<Int> = emptyList(),
+    @ProtoNumber(18) var tracking: List<BackupTracking> = emptyList(),
+    // Bump by 100 for values that are not saved/implemented in 1.x but are used in 0.x
+    @ProtoNumber(100) var favorite: Boolean = true,
+    @ProtoNumber(101) var chapterFlags: Int = 0,
+    @ProtoNumber(102) var brokenHistory: List<BrokenBackupHistory> = emptyList(),
+    @ProtoNumber(103) var viewer_flags: Int? = null,
+    @ProtoNumber(104) var history: List<BackupHistory> = emptyList()
+) {
+    fun getMangaImpl(): MangaImpl {
+        return MangaImpl().apply {
+            url = this@BackupManga.url
+            title = this@BackupManga.title
+            artist = this@BackupManga.artist
+            author = this@BackupManga.author
+            description = this@BackupManga.description
+            genre = this@BackupManga.genre.joinToString()
+            status = this@BackupManga.status
+            thumbnail_url = this@BackupManga.thumbnailUrl
+            favorite = this@BackupManga.favorite
+            source = this@BackupManga.source
+            date_added = this@BackupManga.dateAdded
+            viewer_flags = this@BackupManga.viewer_flags ?: this@BackupManga.viewer
+            chapter_flags = this@BackupManga.chapterFlags
+        }
+    }
+
+    fun getChaptersImpl(): List<ChapterImpl> {
+        return chapters.map {
+            it.toChapterImpl()
+        }
+    }
+
+    fun getTrackingImpl(): List<TrackImpl> {
+        return tracking.map {
+            it.getTrackingImpl()
+        }
+    }
+
+    companion object {
+        fun copyFrom(manga: Manga): BackupManga {
+            return BackupManga(
+                url = manga.url,
+                title = manga.title,
+                artist = manga.artist,
+                author = manga.author,
+                description = manga.description,
+                genre = manga.getGenres() ?: emptyList(),
+                status = manga.status,
+                thumbnailUrl = manga.thumbnail_url,
+                favorite = manga.favorite,
+                source = manga.source,
+                dateAdded = manga.date_added,
+                viewer = manga.readingModeType,
+                viewer_flags = manga.viewer_flags,
+                chapterFlags = manga.chapter_flags
+            )
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupSerializer.kt
@ -0,0 +1,6 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import kotlinx.serialization.Serializer
+
+@Serializer(forClass = Backup::class)
+object BackupSerializer
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupSource.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupSource.kt
@ -0,0 +1,26 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import eu.kanade.tachiyomi.source.Source
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@Serializable
+data class BrokenBackupSource(
+    @ProtoNumber(0) var name: String = "",
+    @ProtoNumber(1) var sourceId: Long
+)
+
+@Serializable
+data class BackupSource(
+    @ProtoNumber(1) var name: String = "",
+    @ProtoNumber(2) var sourceId: Long
+) {
+    companion object {
+        fun copyFrom(source: Source): BackupSource {
+            return BackupSource(
+                name = source.name,
+                sourceId = source.id
+            )
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupTracking.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/models/BackupTracking.kt
@ -0,0 +1,63 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.data.database.models.TrackImpl
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@Serializable
+data class BackupTracking(
+    // in 1.x some of these values have different types or names
+    // syncId is called siteId in 1,x
+    @ProtoNumber(1) var syncId: Int,
+    // LibraryId is not null in 1.x
+    @ProtoNumber(2) var libraryId: Long,
+    @ProtoNumber(3) var mediaId: Int = 0,
+    // trackingUrl is called mediaUrl in 1.x
+    @ProtoNumber(4) var trackingUrl: String = "",
+    @ProtoNumber(5) var title: String = "",
+    // lastChapterRead is called last read, and it has been changed to a float in 1.x
+    @ProtoNumber(6) var lastChapterRead: Float = 0F,
+    @ProtoNumber(7) var totalChapters: Int = 0,
+    @ProtoNumber(8) var score: Float = 0F,
+    @ProtoNumber(9) var status: Int = 0,
+    // startedReadingDate is called startReadTime in 1.x
+    @ProtoNumber(10) var startedReadingDate: Long = 0,
+    // finishedReadingDate is called endReadTime in 1.x
+    @ProtoNumber(11) var finishedReadingDate: Long = 0,
+) {
+    fun getTrackingImpl(): TrackImpl {
+        return TrackImpl().apply {
+            sync_id = this@BackupTracking.syncId
+            media_id = this@BackupTracking.mediaId
+            library_id = this@BackupTracking.libraryId
+            title = this@BackupTracking.title
+            last_chapter_read = this@BackupTracking.lastChapterRead
+            total_chapters = this@BackupTracking.totalChapters
+            score = this@BackupTracking.score
+            status = this@BackupTracking.status
+            started_reading_date = this@BackupTracking.startedReadingDate
+            finished_reading_date = this@BackupTracking.finishedReadingDate
+            tracking_url = this@BackupTracking.trackingUrl
+        }
+    }
+
+    companion object {
+        fun copyFrom(track: Track): BackupTracking {
+            return BackupTracking(
+                syncId = track.sync_id,
+                mediaId = track.media_id,
+                // forced not null so its compatible with 1.x backup system
+                libraryId = track.library_id!!,
+                title = track.title,
+                lastChapterRead = track.last_chapter_read,
+                totalChapters = track.total_chapters,
+                score = track.score,
+                status = track.status,
+                startedReadingDate = track.started_reading_date,
+                finishedReadingDate = track.finished_reading_date,
+                trackingUrl = track.tracking_url
+            )
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/LegacyBackupManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/LegacyBackupManager.kt
@ -0,0 +1,252 @@
+package eu.kanade.tachiyomi.data.backup.legacy
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.data.backup.AbstractBackupManager
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup.Companion.CURRENT_VERSION
+import eu.kanade.tachiyomi.data.backup.legacy.models.DHistory
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.CategoryImplTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.CategoryTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.ChapterImplTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.ChapterTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.HistoryTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.MangaImplTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.MangaTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.TrackImplTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.TrackTypeSerializer
+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.History
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.MangaCategory
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.data.database.models.toMangaInfo
+import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.source.model.toSManga
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.modules.SerializersModule
+import kotlinx.serialization.modules.contextual
+import kotlin.math.max
+
+class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : AbstractBackupManager(context) {
+
+    val parser: Json = when (version) {
+        2 -> Json {
+            // Forks may have added items to backup
+            ignoreUnknownKeys = true
+
+            // Register custom serializers
+            serializersModule = SerializersModule {
+                contextual(MangaTypeSerializer)
+                contextual(MangaImplTypeSerializer)
+                contextual(ChapterTypeSerializer)
+                contextual(ChapterImplTypeSerializer)
+                contextual(CategoryTypeSerializer)
+                contextual(CategoryImplTypeSerializer)
+                contextual(TrackTypeSerializer)
+                contextual(TrackImplTypeSerializer)
+                contextual(HistoryTypeSerializer)
+            }
+        }
+        else -> throw Exception("Unknown backup version")
+    }
+
+    /**
+     * Create backup Json file from database
+     *
+     * @param uri path of Uri
+     * @param isJob backup called from job
+     */
+    override fun createBackup(uri: Uri, flags: Int, isJob: Boolean) =
+        throw IllegalStateException("Legacy backup creation is not supported")
+
+    fun restoreMangaNoFetch(manga: Manga, dbManga: Manga) {
+        manga.id = dbManga.id
+        manga.copyFrom(dbManga)
+        manga.favorite = true
+        insertManga(manga)
+    }
+
+    /**
+     * Fetches manga information
+     *
+     * @param source source of manga
+     * @param manga manga that needs updating
+     * @return Updated manga.
+     */
+    suspend fun fetchManga(source: Source, manga: Manga): Manga {
+        val networkManga = source.getMangaDetails(manga.toMangaInfo())
+        return manga.also {
+            it.copyFrom(networkManga.toSManga())
+            it.favorite = true
+            it.initialized = true
+            it.id = insertManga(manga)
+        }
+    }
+
+    /**
+     * Restore the categories from Json
+     *
+     * @param backupCategories array containing categories
+     */
+    internal fun restoreCategories(backupCategories: List<Category>) {
+        // Get categories from file and from db
+        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
+
+        // Iterate over them
+        backupCategories.forEach { category ->
+            // Used to know if the category is already in the db
+            var found = false
+            for (dbCategory in dbCategories) {
+                // If the category is already in the db, assign the id to the file's category
+                // and do nothing
+                if (category.name == dbCategory.name) {
+                    category.id = dbCategory.id
+                    found = true
+                    break
+                }
+            }
+            // If the category isn't in the db, remove the id and insert a new category
+            // Store the inserted id in the category
+            if (!found) {
+                // Let the db assign the id
+                category.id = null
+                val result = databaseHelper.insertCategory(category).executeAsBlocking()
+                category.id = result.insertedId()?.toInt()
+            }
+        }
+    }
+
+    /**
+     * Restores the categories a manga is in.
+     *
+     * @param manga the manga whose categories have to be restored.
+     * @param categories the categories to restore.
+     */
+    internal fun restoreCategoriesForManga(manga: Manga, categories: List<String>) {
+        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
+        val mangaCategoriesToUpdate = ArrayList<MangaCategory>(categories.size)
+        for (backupCategoryStr in categories) {
+            for (dbCategory in dbCategories) {
+                if (backupCategoryStr == dbCategory.name) {
+                    mangaCategoriesToUpdate.add(MangaCategory.create(manga, dbCategory))
+                    break
+                }
+            }
+        }
+
+        // Update database
+        if (mangaCategoriesToUpdate.isNotEmpty()) {
+            databaseHelper.deleteOldMangasCategories(listOf(manga)).executeAsBlocking()
+            databaseHelper.insertMangasCategories(mangaCategoriesToUpdate).executeAsBlocking()
+        }
+    }
+
+    /**
+     * Restore history from Json
+     *
+     * @param history list containing history to be restored
+     */
+    internal fun restoreHistoryForManga(history: List<DHistory>) {
+        // List containing history to be updated
+        val historyToBeUpdated = ArrayList<History>(history.size)
+        for ((url, lastRead) in history) {
+            val dbHistory = databaseHelper.getHistoryByChapterUrl(url).executeAsBlocking()
+            // Check if history already in database and update
+            if (dbHistory != null) {
+                dbHistory.apply {
+                    last_read = max(lastRead, dbHistory.last_read)
+                }
+                historyToBeUpdated.add(dbHistory)
+            } else {
+                // If not in database create
+                databaseHelper.getChapter(url).executeAsBlocking()?.let {
+                    val historyToAdd = History.create(it).apply {
+                        last_read = lastRead
+                    }
+                    historyToBeUpdated.add(historyToAdd)
+                }
+            }
+        }
+        databaseHelper.updateHistoryLastRead(historyToBeUpdated).executeAsBlocking()
+    }
+
+    /**
+     * Restores the sync of a manga.
+     *
+     * @param manga the manga whose sync have to be restored.
+     * @param tracks the track list to restore.
+     */
+    internal fun restoreTrackForManga(manga: Manga, tracks: List<Track>) {
+        // Get tracks from database
+        val dbTracks = databaseHelper.getTracks(manga).executeAsBlocking()
+        val trackToUpdate = ArrayList<Track>(tracks.size)
+
+        tracks.forEach { track ->
+            // Fix foreign keys with the current manga id
+            track.manga_id = manga.id!!
+
+            val service = trackManager.getService(track.sync_id)
+            if (service != null && service.isLogged) {
+                var isInDatabase = false
+                for (dbTrack in dbTracks) {
+                    if (track.sync_id == dbTrack.sync_id) {
+                        // The sync is already in the db, only update its fields
+                        if (track.media_id != dbTrack.media_id) {
+                            dbTrack.media_id = track.media_id
+                        }
+                        if (track.library_id != dbTrack.library_id) {
+                            dbTrack.library_id = track.library_id
+                        }
+                        dbTrack.last_chapter_read = max(dbTrack.last_chapter_read, track.last_chapter_read)
+                        isInDatabase = true
+                        trackToUpdate.add(dbTrack)
+                        break
+                    }
+                }
+                if (!isInDatabase) {
+                    // Insert new sync. Let the db assign the id
+                    track.id = null
+                    trackToUpdate.add(track)
+                }
+            }
+        }
+        // Update database
+        if (trackToUpdate.isNotEmpty()) {
+            databaseHelper.insertTracks(trackToUpdate).executeAsBlocking()
+        }
+    }
+
+    /**
+     * Restore the chapters for manga if chapters already in database
+     *
+     * @param manga manga of chapters
+     * @param chapters list containing chapters that get restored
+     * @return boolean answering if chapter fetch is not needed
+     */
+    internal fun restoreChaptersForManga(manga: Manga, chapters: List<Chapter>): Boolean {
+        val dbChapters = databaseHelper.getChapters(manga).executeAsBlocking()
+
+        // Return if fetch is needed
+        if (dbChapters.isEmpty() || dbChapters.size < chapters.size) {
+            return false
+        }
+
+        for (chapter in chapters) {
+            val pos = dbChapters.indexOf(chapter)
+            if (pos != -1) {
+                val dbChapter = dbChapters[pos]
+                chapter.id = dbChapter.id
+                chapter.copyFrom(dbChapter)
+                break
+            }
+
+            chapter.manga_id = manga.id
+        }
+
+        // Filter the chapters that couldn't be found.
+        updateChapters(chapters.filter { it.id != null })
+
+        return true
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/LegacyBackupRestore.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/LegacyBackupRestore.kt
@ -0,0 +1,185 @@
+package eu.kanade.tachiyomi.data.backup.legacy
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.backup.AbstractBackupRestore
+import eu.kanade.tachiyomi.data.backup.BackupNotifier
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup
+import eu.kanade.tachiyomi.data.backup.legacy.models.DHistory
+import eu.kanade.tachiyomi.data.backup.legacy.models.MangaObject
+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.source.Source
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.JsonObject
+import kotlinx.serialization.json.decodeFromJsonElement
+import kotlinx.serialization.json.decodeFromStream
+import kotlinx.serialization.json.intOrNull
+import kotlinx.serialization.json.jsonPrimitive
+import okio.source
+import java.util.Date
+
+class LegacyBackupRestore(context: Context, notifier: BackupNotifier) : AbstractBackupRestore<LegacyBackupManager>(context, notifier) {
+
+    override suspend fun performRestore(uri: Uri): Boolean {
+        // Read the json and create a Json Object,
+        // cannot use the backupManager json deserializer one because its not initialized yet
+        val backupObject = Json.decodeFromStream<JsonObject>(
+            context.contentResolver.openInputStream(uri)!!
+        )
+
+        // Get parser version
+        val version = backupObject["version"]?.jsonPrimitive?.intOrNull ?: 1
+
+        // Initialize manager
+        backupManager = LegacyBackupManager(context, version)
+
+        // Decode the json object to a Backup object
+        val backup = backupManager.parser.decodeFromJsonElement<Backup>(backupObject)
+
+        restoreAmount = backup.mangas.size + 1 // +1 for categories
+
+        // Restore categories
+        backup.categories?.let { restoreCategories(it) }
+
+        // Store source mapping for error messages
+        sourceMapping = LegacyBackupRestoreValidator.getSourceMapping(backup.extensions ?: emptyList())
+
+        // Restore individual manga
+        backup.mangas.forEach {
+            if (job?.isActive != true) {
+                return false
+            }
+
+            restoreManga(it)
+        }
+
+        return true
+    }
+
+    private fun restoreCategories(categoriesJson: List<Category>) {
+        db.inTransaction {
+            backupManager.restoreCategories(categoriesJson)
+        }
+
+        restoreProgress += 1
+        showRestoreProgress(restoreProgress, restoreAmount, context.getString(R.string.categories))
+    }
+
+    private suspend fun restoreManga(mangaJson: MangaObject) {
+        val manga = mangaJson.manga
+        val chapters = mangaJson.chapters ?: emptyList()
+        val categories = mangaJson.categories ?: emptyList()
+        val history = mangaJson.history ?: emptyList()
+        val tracks = mangaJson.track ?: emptyList()
+
+        val source = backupManager.sourceManager.get(manga.source)
+        val sourceName = sourceMapping[manga.source] ?: manga.source.toString()
+
+        try {
+            if (source != null) {
+                restoreMangaData(manga, source, chapters, categories, history, tracks)
+            } else {
+                errors.add(Date() to "${manga.title} [$sourceName]: ${context.getString(R.string.source_not_found_name, sourceName)}")
+            }
+        } catch (e: Exception) {
+            errors.add(Date() to "${manga.title} [$sourceName]: ${e.message}")
+        }
+
+        restoreProgress += 1
+        showRestoreProgress(restoreProgress, restoreAmount, manga.title)
+    }
+
+    /**
+     * Returns a manga restore observable
+     *
+     * @param manga manga data from json
+     * @param source source to get manga data from
+     * @param chapters chapters data from json
+     * @param categories categories data from json
+     * @param history history data from json
+     * @param tracks tracking data from json
+     */
+    private suspend fun restoreMangaData(
+        manga: Manga,
+        source: Source,
+        chapters: List<Chapter>,
+        categories: List<String>,
+        history: List<DHistory>,
+        tracks: List<Track>
+    ) {
+        val dbManga = backupManager.getMangaFromDatabase(manga)
+
+        db.inTransaction {
+            if (dbManga == null) {
+                // Manga not in database
+                restoreMangaFetch(source, manga, chapters, categories, history, tracks)
+            } else { // Manga in database
+                // Copy information from manga already in database
+                backupManager.restoreMangaNoFetch(manga, dbManga)
+                // Fetch rest of manga information
+                restoreMangaNoFetch(source, manga, chapters, categories, history, tracks)
+            }
+        }
+    }
+
+    /**
+     * Fetches manga information.
+     *
+     * @param manga manga that needs updating
+     * @param chapters chapters of manga that needs updating
+     * @param categories categories that need updating
+     */
+    private suspend fun restoreMangaFetch(
+        source: Source,
+        manga: Manga,
+        chapters: List<Chapter>,
+        categories: List<String>,
+        history: List<DHistory>,
+        tracks: List<Track>
+    ) {
+        try {
+            val fetchedManga = backupManager.fetchManga(source, manga)
+            fetchedManga.id ?: return
+
+            updateChapters(source, fetchedManga, chapters)
+
+            restoreExtraForManga(fetchedManga, categories, history, tracks)
+
+            updateTracking(fetchedManga, tracks)
+        } catch (e: Exception) {
+            errors.add(Date() to "${manga.title} - ${e.message}")
+        }
+    }
+
+    private suspend fun restoreMangaNoFetch(
+        source: Source,
+        backupManga: Manga,
+        chapters: List<Chapter>,
+        categories: List<String>,
+        history: List<DHistory>,
+        tracks: List<Track>
+    ) {
+        if (!backupManager.restoreChaptersForManga(backupManga, chapters)) {
+            updateChapters(source, backupManga, chapters)
+        }
+
+        restoreExtraForManga(backupManga, categories, history, tracks)
+
+        updateTracking(backupManga, tracks)
+    }
+
+    private fun restoreExtraForManga(manga: Manga, categories: List<String>, history: List<DHistory>, tracks: List<Track>) {
+        // Restore categories
+        backupManager.restoreCategoriesForManga(manga, categories)
+
+        // Restore history
+        backupManager.restoreHistoryForManga(history)
+
+        // Restore tracking
+        backupManager.restoreTrackForManga(manga, tracks)
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/LegacyBackupRestoreValidator.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/LegacyBackupRestoreValidator.kt
@ -0,0 +1,66 @@
+package eu.kanade.tachiyomi.data.backup.legacy
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.backup.AbstractBackupRestoreValidator
+import eu.kanade.tachiyomi.data.backup.ValidatorParseException
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup
+import kotlinx.serialization.json.decodeFromStream
+
+class LegacyBackupRestoreValidator : AbstractBackupRestoreValidator() {
+
+    /**
+     * Checks for critical backup file data.
+     *
+     * @throws Exception if version or manga cannot be found.
+     * @return List of missing sources or missing trackers.
+     */
+    override fun validate(context: Context, uri: Uri): Results {
+        val backupManager = LegacyBackupManager(context)
+
+        val backup = try {
+            backupManager.parser.decodeFromStream<Backup>(
+                context.contentResolver.openInputStream(uri)!!
+            )
+        } catch (e: Exception) {
+            throw ValidatorParseException(e)
+        }
+
+        if (backup.version == null) {
+            throw Exception(context.getString(R.string.invalid_backup_file_missing_data))
+        }
+
+        if (backup.mangas.isEmpty()) {
+            throw Exception(context.getString(R.string.invalid_backup_file_missing_manga))
+        }
+
+        val sources = getSourceMapping(backup.extensions ?: emptyList())
+        val missingSources = sources
+            .filter { sourceManager.get(it.key) == null }
+            .values
+            .sorted()
+
+        val trackers = backup.mangas
+            .filterNot { it.track.isNullOrEmpty() }
+            .flatMap { it.track ?: emptyList() }
+            .map { it.sync_id }
+            .distinct()
+        val missingTrackers = trackers
+            .mapNotNull { trackManager.getService(it) }
+            .filter { !it.isLogged }
+            .map { context.getString(it.nameRes()) }
+            .sorted()
+
+        return Results(missingSources, missingTrackers)
+    }
+
+    companion object {
+        fun getSourceMapping(extensionsMapping: List<String>): Map<Long, String> {
+            return extensionsMapping.associate {
+                val items = it.split(":")
+                items[0].toLong() to items[1]
+            }
+        }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/models/Backup.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/models/Backup.kt
@ -0,0 +1,37 @@
+package eu.kanade.tachiyomi.data.backup.legacy.models
+
+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.Track
+import kotlinx.serialization.Contextual
+import kotlinx.serialization.Serializable
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+
+@Serializable
+data class Backup(
+    val version: Int? = null,
+    var mangas: MutableList<MangaObject> = mutableListOf(),
+    var categories: List<@Contextual Category>? = null,
+    var extensions: List<String>? = null
+) {
+    companion object {
+        const val CURRENT_VERSION = 2
+
+        fun getDefaultFilename(): String {
+            val date = SimpleDateFormat("yyyy-MM-dd_HH-mm", Locale.getDefault()).format(Date())
+            return "tachiyomi_$date.json"
+        }
+    }
+}
+
+@Serializable
+data class MangaObject(
+    var manga: @Contextual Manga,
+    var chapters: List<@Contextual Chapter>? = null,
+    var categories: List<String>? = null,
+    var track: List<@Contextual Track>? = null,
+    var history: List<@Contextual DHistory>? = null
+)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/models/DHistory.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/models/DHistory.kt
@ -0,0 +1,3 @@
+package eu.kanade.tachiyomi.data.backup.legacy.models
+
+data class DHistory(val url: String, val lastRead: Long)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/CategoryTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/CategoryTypeSerializer.kt
@ -0,0 +1,49 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.CategoryImpl
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.add
+import kotlinx.serialization.json.buildJsonArray
+import kotlinx.serialization.json.int
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonPrimitive
+
+/**
+ * JSON Serializer used to write / read [CategoryImpl] to / from json
+ */
+open class CategoryBaseSerializer<T : Category> : KSerializer<T> {
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("Category")
+
+    override fun serialize(encoder: Encoder, value: T) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonArray {
+                add(value.name)
+                add(value.order)
+            }
+        )
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun deserialize(decoder: Decoder): T {
+        // make a category impl and cast as T so that the serializer accepts it
+        return CategoryImpl().apply {
+            decoder as JsonDecoder
+            val array = decoder.decodeJsonElement().jsonArray
+            name = array[0].jsonPrimitive.content
+            order = array[1].jsonPrimitive.int
+        } as T
+    }
+}
+
+// Allow for serialization of a category and category impl
+object CategoryTypeSerializer : CategoryBaseSerializer<Category>()
+
+object CategoryImplTypeSerializer : CategoryBaseSerializer<CategoryImpl>()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/ChapterTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/ChapterTypeSerializer.kt
@ -0,0 +1,66 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.ChapterImpl
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.buildJsonObject
+import kotlinx.serialization.json.intOrNull
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.put
+
+/**
+ * JSON Serializer used to write / read [ChapterImpl] to / from json
+ */
+open class ChapterBaseSerializer<T : Chapter> : KSerializer<T> {
+
+    override val descriptor = buildClassSerialDescriptor("Chapter")
+
+    override fun serialize(encoder: Encoder, value: T) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonObject {
+                put(URL, value.url)
+                if (value.read) {
+                    put(READ, 1)
+                }
+                if (value.bookmark) {
+                    put(BOOKMARK, 1)
+                }
+                if (value.last_page_read != 0) {
+                    put(LAST_READ, value.last_page_read)
+                }
+            }
+        )
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun deserialize(decoder: Decoder): T {
+        // make a chapter impl and cast as T so that the serializer accepts it
+        return ChapterImpl().apply {
+            decoder as JsonDecoder
+            val jsonObject = decoder.decodeJsonElement().jsonObject
+            url = jsonObject[URL]!!.jsonPrimitive.content
+            read = jsonObject[READ]?.jsonPrimitive?.intOrNull == 1
+            bookmark = jsonObject[BOOKMARK]?.jsonPrimitive?.intOrNull == 1
+            last_page_read = jsonObject[LAST_READ]?.jsonPrimitive?.intOrNull ?: last_page_read
+        } as T
+    }
+
+    companion object {
+        private const val URL = "u"
+        private const val READ = "r"
+        private const val BOOKMARK = "b"
+        private const val LAST_READ = "l"
+    }
+}
+
+// Allow for serialization of a chapter and chapter impl
+object ChapterTypeSerializer : ChapterBaseSerializer<Chapter>()
+
+object ChapterImplTypeSerializer : ChapterBaseSerializer<ChapterImpl>()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/HistoryTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/HistoryTypeSerializer.kt
@ -0,0 +1,41 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.backup.legacy.models.DHistory
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.add
+import kotlinx.serialization.json.buildJsonArray
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.long
+
+/**
+ * JSON Serializer used to write / read [DHistory] to / from json
+ */
+object HistoryTypeSerializer : KSerializer<DHistory> {
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("History")
+
+    override fun serialize(encoder: Encoder, value: DHistory) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonArray {
+                add(value.url)
+                add(value.lastRead)
+            }
+        )
+    }
+
+    override fun deserialize(decoder: Decoder): DHistory {
+        decoder as JsonDecoder
+        val array = decoder.decodeJsonElement().jsonArray
+        return DHistory(
+            url = array[0].jsonPrimitive.content,
+            lastRead = array[1].jsonPrimitive.long
+        )
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/MangaTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/MangaTypeSerializer.kt
@ -0,0 +1,56 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.MangaImpl
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.add
+import kotlinx.serialization.json.buildJsonArray
+import kotlinx.serialization.json.int
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.long
+
+/**
+ * JSON Serializer used to write / read [MangaImpl] to / from json
+ */
+open class MangaBaseSerializer<T : Manga> : KSerializer<T> {
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("Manga")
+
+    override fun serialize(encoder: Encoder, value: T) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonArray {
+                add(value.url)
+                add(value.title)
+                add(value.source)
+                add(value.viewer_flags)
+                add(value.chapter_flags)
+            }
+        )
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun deserialize(decoder: Decoder): T {
+        // make a manga impl and cast as T so that the serializer accepts it
+        return MangaImpl().apply {
+            decoder as JsonDecoder
+            val array = decoder.decodeJsonElement().jsonArray
+            url = array[0].jsonPrimitive.content
+            title = array[1].jsonPrimitive.content
+            source = array[2].jsonPrimitive.long
+            viewer_flags = array[3].jsonPrimitive.int
+            chapter_flags = array[4].jsonPrimitive.int
+        } as T
+    }
+}
+
+// Allow for serialization of a manga and manga impl
+object MangaTypeSerializer : MangaBaseSerializer<Manga>()
+
+object MangaImplTypeSerializer : MangaBaseSerializer<MangaImpl>()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/TrackTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/TrackTypeSerializer.kt
@ -0,0 +1,68 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.data.database.models.TrackImpl
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.buildJsonObject
+import kotlinx.serialization.json.float
+import kotlinx.serialization.json.int
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.long
+import kotlinx.serialization.json.put
+
+/**
+ * JSON Serializer used to write / read [TrackImpl] to / from json
+ */
+open class TrackBaseSerializer<T : Track> : KSerializer<T> {
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("Track")
+
+    override fun serialize(encoder: Encoder, value: T) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonObject {
+                put(TITLE, value.title)
+                put(SYNC, value.sync_id)
+                put(MEDIA, value.media_id)
+                put(LIBRARY, value.library_id)
+                put(LAST_READ, value.last_chapter_read)
+                put(TRACKING_URL, value.tracking_url)
+            }
+        )
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun deserialize(decoder: Decoder): T {
+        // make a track impl and cast as T so that the serializer accepts it
+        return TrackImpl().apply {
+            decoder as JsonDecoder
+            val jsonObject = decoder.decodeJsonElement().jsonObject
+            title = jsonObject[TITLE]!!.jsonPrimitive.content
+            sync_id = jsonObject[SYNC]!!.jsonPrimitive.int
+            media_id = jsonObject[MEDIA]!!.jsonPrimitive.int
+            library_id = jsonObject[LIBRARY]!!.jsonPrimitive.long
+            last_chapter_read = jsonObject[LAST_READ]!!.jsonPrimitive.float
+            tracking_url = jsonObject[TRACKING_URL]!!.jsonPrimitive.content
+        } as T
+    }
+
+    companion object {
+        private const val SYNC = "s"
+        private const val MEDIA = "r"
+        private const val LIBRARY = "ml"
+        private const val TITLE = "t"
+        private const val LAST_READ = "l"
+        private const val TRACKING_URL = "u"
+    }
+}
+
+// Allow for serialization of a track and track impl
+object TrackTypeSerializer : TrackBaseSerializer<Track>()
+
+object TrackImplTypeSerializer : TrackBaseSerializer<TrackImpl>()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/models/Backup.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/models/Backup.kt
@ -1,23 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.models
-
-import java.text.SimpleDateFormat
-import java.util.*
-
-/**
- * Json values
- */
-object Backup {
-    const val CURRENT_VERSION = 2
-    const val MANGA = "manga"
-    const val MANGAS = "mangas"
-    const val TRACK = "track"
-    const val CHAPTERS = "chapters"
-    const val CATEGORIES = "categories"
-    const val HISTORY = "history"
-    const val VERSION = "version"
-
-    fun getDefaultFilename(): String {
-        val date = SimpleDateFormat("yyyy-MM-dd_HH-mm", Locale.getDefault()).format(Date())
-        return "tachiyomi_$date.json"
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/models/DHistory.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/models/DHistory.kt
@ -1,3 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.models
-
-data class DHistory(val url: String,val lastRead: Long)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/CategoryTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/CategoryTypeAdapter.kt
@ -1,31 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import eu.kanade.tachiyomi.data.database.models.CategoryImpl
-
-/**
- * JSON Serializer used to write / read [CategoryImpl] to / from json
- */
-object CategoryTypeAdapter {
-
-    fun build(): TypeAdapter<CategoryImpl> {
-        return typeAdapter {
-            write {
-                beginArray()
-                value(it.name)
-                value(it.order)
-                endArray()
-            }
-
-            read {
-                beginArray()
-                val category = CategoryImpl()
-                category.name = nextString()
-                category.order = nextInt()
-                endArray()
-                category
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/ChapterTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/ChapterTypeAdapter.kt
@ -1,61 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import com.google.gson.stream.JsonToken
-import eu.kanade.tachiyomi.data.database.models.ChapterImpl
-
-/**
- * JSON Serializer used to write / read [ChapterImpl] to / from json
- */
-object ChapterTypeAdapter {
-
-    private const val URL = "u"
-    private const val READ = "r"
-    private const val BOOKMARK = "b"
-    private const val LAST_READ = "l"
-
-    fun build(): TypeAdapter<ChapterImpl> {
-        return typeAdapter {
-            write {
-                if (it.read || it.bookmark || it.last_page_read != 0) {
-                    beginObject()
-                    name(URL)
-                    value(it.url)
-                    if (it.read) {
-                        name(READ)
-                        value(1)
-                    }
-                    if (it.bookmark) {
-                        name(BOOKMARK)
-                        value(1)
-                    }
-                    if (it.last_page_read != 0) {
-                        name(LAST_READ)
-                        value(it.last_page_read)
-                    }
-                    endObject()
-                }
-            }
-
-            read {
-                val chapter = ChapterImpl()
-                beginObject()
-                while (hasNext()) {
-                    if (peek() == JsonToken.NAME) {
-                        val name = nextName()
-
-                        when (name) {
-                            URL -> chapter.url = nextString()
-                            READ -> chapter.read = nextInt() == 1
-                            BOOKMARK -> chapter.bookmark = nextInt() == 1
-                            LAST_READ -> chapter.last_page_read = nextInt()
-                        }
-                    }
-                }
-                endObject()
-                chapter
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/HistoryTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/HistoryTypeAdapter.kt
@ -1,32 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import eu.kanade.tachiyomi.data.backup.models.DHistory
-
-/**
- * JSON Serializer used to write / read [DHistory] to / from json
- */
-object HistoryTypeAdapter {
-
-    fun build(): TypeAdapter<DHistory> {
-        return typeAdapter {
-            write {
-                if (it.lastRead != 0L) {
-                    beginArray()
-                    value(it.url)
-                    value(it.lastRead)
-                    endArray()
-                }
-            }
-
-            read {
-                beginArray()
-                val url = nextString()
-                val lastRead = nextLong()
-                endArray()
-                DHistory(url, lastRead)
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/MangaTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/MangaTypeAdapter.kt
@ -1,37 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import eu.kanade.tachiyomi.data.database.models.MangaImpl
-
-/**
- * JSON Serializer used to write / read [MangaImpl] to / from json
- */
-object MangaTypeAdapter {
-
-    fun build(): TypeAdapter<MangaImpl> {
-        return typeAdapter {
-            write {
-                beginArray()
-                value(it.url)
-                value(it.title)
-                value(it.source)
-                value(it.viewer)
-                value(it.chapter_flags)
-                endArray()
-            }
-
-            read {
-                beginArray()
-                val manga = MangaImpl()
-                manga.url = nextString()
-                manga.title = nextString()
-                manga.source = nextLong()
-                manga.viewer = nextInt()
-                manga.chapter_flags = nextInt()
-                endArray()
-                manga
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/TrackTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/serializer/TrackTypeAdapter.kt
@ -1,53 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import com.google.gson.stream.JsonToken
-import eu.kanade.tachiyomi.data.database.models.TrackImpl
-
-/**
- * JSON Serializer used to write / read [TrackImpl] to / from json
- */
-object TrackTypeAdapter {
-
-    private const val SYNC = "s"
-    private const val REMOTE = "r"
-    private const val TITLE = "t"
-    private const val LAST_READ = "l"
-
-    fun build(): TypeAdapter<TrackImpl> {
-        return typeAdapter {
-            write {
-                beginObject()
-                name(TITLE)
-                value(it.title)
-                name(SYNC)
-                value(it.sync_id)
-                name(REMOTE)
-                value(it.remote_id)
-                name(LAST_READ)
-                value(it.last_chapter_read)
-                endObject()
-            }
-
-            read {
-                val track = TrackImpl()
-                beginObject()
-                while (hasNext()) {
-                    if (peek() == JsonToken.NAME) {
-                        val name = nextName()
-
-                        when (name) {
-                            TITLE -> track.title = nextString()
-                            SYNC -> track.sync_id = nextInt()
-                            REMOTE -> track.remote_id = nextInt()
-                            LAST_READ -> track.last_chapter_read = nextInt()
-                        }
-                    }
-                }
-                endObject()
-                track
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
@ -2,16 +2,17 @@ package eu.kanade.tachiyomi.data.cache

 import android.content.Context
 import android.text.format.Formatter
-import com.github.salomonbrys.kotson.fromJson
-import com.google.gson.Gson
 import com.jakewharton.disklrucache.DiskLruCache
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.source.model.Page
-import eu.kanade.tachiyomi.util.DiskUtil
-import eu.kanade.tachiyomi.util.saveTo
+import eu.kanade.tachiyomi.util.storage.DiskUtil
+import eu.kanade.tachiyomi.util.storage.saveTo
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import okhttp3.Response
-import okio.Okio
-import rx.Observable
+import okio.buffer
+import okio.sink
 import uy.kohesive.injekt.injectLazy
 import java.io.File
 import java.io.IOException
@ -38,22 +39,23 @@ class ChapterCache(private val context: Context) {
        const val PARAMETER_VALUE_COUNT = 1

        /** The maximum number of bytes this cache should use to store.  */
-        const val PARAMETER_CACHE_SIZE = 75L * 1024 * 1024
+        const val PARAMETER_CACHE_SIZE = 100L * 1024 * 1024
    }

-    /** Google Json class used for parsing JSON files.  */
-    private val gson: Gson by injectLazy()
+    private val json: Json by injectLazy()

    /** Cache class used for cache management.  */
-    private val diskCache = DiskLruCache.open(File(context.cacheDir, PARAMETER_CACHE_DIRECTORY),
-            PARAMETER_APP_VERSION,
-            PARAMETER_VALUE_COUNT,
-            PARAMETER_CACHE_SIZE)
+    private val diskCache = DiskLruCache.open(
+        File(context.cacheDir, PARAMETER_CACHE_DIRECTORY),
+        PARAMETER_APP_VERSION,
+        PARAMETER_VALUE_COUNT,
+        PARAMETER_CACHE_SIZE
+    )

    /**
     * Returns directory of cache.
     */
-    val cacheDir: File
+    private val cacheDir: File
        get() = diskCache.directory

    /**
@ -68,42 +70,19 @@ class ChapterCache(private val context: Context) {
    val readableSize: String
        get() = Formatter.formatFileSize(context, realSize)

-    /**
-     * Remove file from cache.
-     *
-     * @param file name of file "md5.0".
-     * @return status of deletion for the file.
-     */
-    fun removeFileFromCache(file: String): Boolean {
-        // Make sure we don't delete the journal file (keeps track of cache).
-        if (file == "journal" || file.startsWith("journal."))
-            return false
-
-        try {
-            // Remove the extension from the file to get the key of the cache
-            val key = file.substringBeforeLast(".")
-            // Remove file from cache.
-            return diskCache.remove(key)
-        } catch (e: Exception) {
-            return false
-        }
-    }
-
    /**
     * Get page list from cache.
     *
     * @param chapter the chapter.
-     * @return an observable of the list of pages.
+     * @return the list of pages.
     */
-    fun getPageListFromCache(chapter: Chapter): Observable<List<Page>> {
-        return Observable.fromCallable {
-            // Get the key for the chapter.
-            val key = DiskUtil.hashKeyForDisk(getKey(chapter))
+    fun getPageListFromCache(chapter: Chapter): List<Page> {
+        // Get the key for the chapter.
+        val key = DiskUtil.hashKeyForDisk(getKey(chapter))

-            // Convert JSON string to list of objects. Throws an exception if snapshot is null
-            diskCache.get(key).use {
-                gson.fromJson<List<Page>>(it.getString(0))
-            }
+        // Convert JSON string to list of objects. Throws an exception if snapshot is null
+        return diskCache.get(key).use {
+            json.decodeFromString(it.getString(0))
        }
    }

@ -115,7 +94,7 @@ class ChapterCache(private val context: Context) {
     */
    fun putPageListToCache(chapter: Chapter, pages: List<Page>) {
        // Convert list of pages to json string.
-        val cachedValue = gson.toJson(pages)
+        val cachedValue = json.encodeToString(pages)

        // Initialize the editor (edits the values for an entry).
        var editor: DiskLruCache.Editor? = null
@ -126,7 +105,7 @@ class ChapterCache(private val context: Context) {
            editor = diskCache.edit(key) ?: return

            // Write chapter urls to cache.
-            Okio.buffer(Okio.sink(editor.newOutputStream(0))).use {
+            editor.newOutputStream(0).sink().buffer().use {
                it.write(cachedValue.toByteArray())
                it.flush()
            }
@ -134,7 +113,6 @@ class ChapterCache(private val context: Context) {
            diskCache.flush()
            editor.commit()
            editor.abortUnlessCommitted()
-
        } catch (e: Exception) {
            // Ignore.
        } finally {
@ -149,10 +127,10 @@ class ChapterCache(private val context: Context) {
     * @return true if in cache otherwise false.
     */
    fun isImageInCache(imageUrl: String): Boolean {
-        try {
-            return diskCache.get(DiskUtil.hashKeyForDisk(imageUrl)) != null
+        return try {
+            diskCache.get(DiskUtil.hashKeyForDisk(imageUrl)) != null
        } catch (e: IOException) {
-            return false
+            false
        }
    }

@ -170,7 +148,7 @@ class ChapterCache(private val context: Context) {

    /**
     * Add image to cache.
-     * 
+     *
     * @param imageUrl url of image.
     * @param response http response from page.
     * @throws IOException image error.
@ -186,18 +164,49 @@ class ChapterCache(private val context: Context) {
            editor = diskCache.edit(key) ?: throw IOException("Unable to edit key")

            // Get OutputStream and write image with Okio.
-            response.body()!!.source().saveTo(editor.newOutputStream(0))
+            response.body!!.source().saveTo(editor.newOutputStream(0))

            diskCache.flush()
            editor.commit()
        } finally {
-            response.body()?.close()
+            response.body?.close()
            editor?.abortUnlessCommitted()
        }
    }

+    fun clear(): Int {
+        var deletedFiles = 0
+        cacheDir.listFiles()?.forEach {
+            if (removeFileFromCache(it.name)) {
+                deletedFiles++
+            }
+        }
+        return deletedFiles
+    }
+
+    /**
+     * Remove file from cache.
+     *
+     * @param file name of file "md5.0".
+     * @return status of deletion for the file.
+     */
+    private fun removeFileFromCache(file: String): Boolean {
+        // Make sure we don't delete the journal file (keeps track of cache).
+        if (file == "journal" || file.startsWith("journal.")) {
+            return false
+        }
+
+        return try {
+            // Remove the extension from the file to get the key of the cache
+            val key = file.substringBeforeLast(".")
+            // Remove file from cache.
+            diskCache.remove(key)
+        } catch (e: Exception) {
+            false
+        }
+    }
+
    private fun getKey(chapter: Chapter): String {
        return "${chapter.manga_id}${chapter.url}"
    }
 }
-
--- a/app/src/main/java/eu/kanade/tachiyomi/data/cache/CoverCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/cache/CoverCache.kt
@ -1,7 +1,9 @@
 package eu.kanade.tachiyomi.data.cache

 import android.content.Context
-import eu.kanade.tachiyomi.util.DiskUtil
+import coil.imageLoader
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.util.storage.DiskUtil
 import java.io.File
 import java.io.IOException
 import java.io.InputStream
@ -17,51 +19,96 @@ import java.io.InputStream
 */
 class CoverCache(private val context: Context) {

+    companion object {
+        private const val COVERS_DIR = "covers"
+        private const val CUSTOM_COVERS_DIR = "covers/custom"
+    }
+
    /**
     * Cache directory used for cache management.
     */
-    private val cacheDir = context.getExternalFilesDir("covers") ?:
-            File(context.filesDir, "covers").also { it.mkdirs() }
+    private val cacheDir = getCacheDir(COVERS_DIR)
+
+    private val customCoverCacheDir = getCacheDir(CUSTOM_COVERS_DIR)

    /**
     * Returns the cover from cache.
     *
-     * @param thumbnailUrl the thumbnail url.
+     * @param manga the manga.
     * @return cover image.
     */
-    fun getCoverFile(thumbnailUrl: String): File {
-        return File(cacheDir, DiskUtil.hashKeyForDisk(thumbnailUrl))
+    fun getCoverFile(manga: Manga): File? {
+        return manga.thumbnail_url?.let {
+            File(cacheDir, DiskUtil.hashKeyForDisk(it))
+        }
    }

    /**
-     * Copy the given stream to this cache.
+     * Returns the custom cover from cache.
     *
-     * @param thumbnailUrl url of the thumbnail.
-     * @param inputStream  the stream to copy.
+     * @param manga the manga.
+     * @return cover image.
+     */
+    fun getCustomCoverFile(manga: Manga): File {
+        return File(customCoverCacheDir, DiskUtil.hashKeyForDisk(manga.id.toString()))
+    }
+
+    /**
+     * Saves the given stream as the manga's custom cover to cache.
+     *
+     * @param manga the manga.
+     * @param inputStream the stream to copy.
     * @throws IOException if there's any error.
     */
    @Throws(IOException::class)
-    fun copyToCache(thumbnailUrl: String, inputStream: InputStream) {
-        // Get destination file.
-        val destFile = getCoverFile(thumbnailUrl)
-
-        destFile.outputStream().use { inputStream.copyTo(it) }
+    fun setCustomCoverToCache(manga: Manga, inputStream: InputStream) {
+        getCustomCoverFile(manga).outputStream().use {
+            inputStream.copyTo(it)
+        }
    }

    /**
-     * Delete the cover file from the cache.
+     * Delete the cover files of the manga from the cache.
     *
-     * @param thumbnailUrl the thumbnail url.
-     * @return status of deletion.
+     * @param manga the manga.
+     * @param deleteCustomCover whether the custom cover should be deleted.
+     * @return number of files that were deleted.
     */
-    fun deleteFromCache(thumbnailUrl: String?): Boolean {
-        // Check if url is empty.
-        if (thumbnailUrl.isNullOrEmpty())
-            return false
+    fun deleteFromCache(manga: Manga, deleteCustomCover: Boolean = false): Int {
+        var deleted = 0

-        // Remove file.
-        val file = getCoverFile(thumbnailUrl!!)
-        return file.exists() && file.delete()
+        getCoverFile(manga)?.let {
+            if (it.exists() && it.delete()) ++deleted
+        }
+
+        if (deleteCustomCover) {
+            if (deleteCustomCover(manga)) ++deleted
+        }
+
+        return deleted
    }

+    /**
+     * Delete custom cover of the manga from the cache
+     *
+     * @param manga the manga.
+     * @return whether the cover was deleted.
+     */
+    fun deleteCustomCover(manga: Manga): Boolean {
+        return getCustomCoverFile(manga).let {
+            it.exists() && it.delete()
+        }
+    }
+
+    /**
+     * Clear coil's memory cache.
+     */
+    fun clearMemoryCache() {
+        context.imageLoader.memoryCache.clear()
+    }
+
+    private fun getCacheDir(dir: String): File {
+        return context.getExternalFilesDir(dir)
+            ?: File(context.filesDir, dir).also { it.mkdirs() }
+    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/coil/ByteBufferFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/coil/ByteBufferFetcher.kt
@ -0,0 +1,25 @@
+package eu.kanade.tachiyomi.data.coil
+
+import coil.bitmap.BitmapPool
+import coil.decode.DataSource
+import coil.decode.Options
+import coil.fetch.FetchResult
+import coil.fetch.Fetcher
+import coil.fetch.SourceResult
+import coil.size.Size
+import okio.buffer
+import okio.source
+import java.io.ByteArrayInputStream
+import java.nio.ByteBuffer
+
+class ByteBufferFetcher : Fetcher<ByteBuffer> {
+    override suspend fun fetch(pool: BitmapPool, data: ByteBuffer, size: Size, options: Options): FetchResult {
+        return SourceResult(
+            source = ByteArrayInputStream(data.array()).source().buffer(),
+            mimeType = null,
+            dataSource = DataSource.MEMORY
+        )
+    }
+
+    override fun key(data: ByteBuffer): String? = null
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/coil/MangaCoverFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/coil/MangaCoverFetcher.kt
@ -0,0 +1,168 @@
+package eu.kanade.tachiyomi.data.coil
+
+import coil.bitmap.BitmapPool
+import coil.decode.DataSource
+import coil.decode.Options
+import coil.fetch.FetchResult
+import coil.fetch.Fetcher
+import coil.fetch.SourceResult
+import coil.network.HttpException
+import coil.request.get
+import coil.size.Size
+import eu.kanade.tachiyomi.data.cache.CoverCache
+import eu.kanade.tachiyomi.data.coil.MangaCoverFetcher.Companion.USE_CUSTOM_COVER
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.network.NetworkHelper
+import eu.kanade.tachiyomi.network.await
+import eu.kanade.tachiyomi.source.SourceManager
+import eu.kanade.tachiyomi.source.online.HttpSource
+import okhttp3.CacheControl
+import okhttp3.Call
+import okhttp3.Request
+import okhttp3.Response
+import okhttp3.ResponseBody
+import okio.buffer
+import okio.sink
+import okio.source
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+import uy.kohesive.injekt.injectLazy
+import java.io.File
+
+/**
+ * Coil component that fetches [Manga] cover while using the cached file in disk when available.
+ *
+ * Available request parameter:
+ * - [USE_CUSTOM_COVER]: Use custom cover if set by user, default is true
+ */
+class MangaCoverFetcher : Fetcher<Manga> {
+    private val coverCache: CoverCache by injectLazy()
+    private val sourceManager: SourceManager by injectLazy()
+    private val defaultClient = Injekt.get<NetworkHelper>().coilClient
+
+    override fun key(data: Manga): String? {
+        if (data.thumbnail_url.isNullOrBlank()) return null
+        return data.thumbnail_url!!
+    }
+
+    override suspend fun fetch(pool: BitmapPool, data: Manga, size: Size, options: Options): FetchResult {
+        // Use custom cover if exists
+        val useCustomCover = options.parameters[USE_CUSTOM_COVER] as? Boolean ?: true
+        val customCoverFile = coverCache.getCustomCoverFile(data)
+        if (useCustomCover && customCoverFile.exists()) {
+            return fileLoader(customCoverFile)
+        }
+
+        val cover = data.thumbnail_url
+        return when (getResourceType(cover)) {
+            Type.URL -> httpLoader(data, options)
+            Type.File -> fileLoader(data)
+            null -> error("Invalid image")
+        }
+    }
+
+    private suspend fun httpLoader(manga: Manga, options: Options): FetchResult {
+        // Only cache separately if it's a library item
+        val coverCacheFile = if (manga.favorite) {
+            coverCache.getCoverFile(manga) ?: error("No cover specified")
+        } else {
+            null
+        }
+
+        if (coverCacheFile?.exists() == true && options.diskCachePolicy.readEnabled) {
+            return fileLoader(coverCacheFile)
+        }
+
+        val (response, body) = awaitGetCall(manga, options)
+        if (!response.isSuccessful) {
+            body.close()
+            throw HttpException(response)
+        }
+
+        if (coverCacheFile != null && options.diskCachePolicy.writeEnabled) {
+            @Suppress("BlockingMethodInNonBlockingContext")
+            response.peekBody(Long.MAX_VALUE).source().use { input ->
+                coverCacheFile.parentFile?.mkdirs()
+                if (coverCacheFile.exists()) {
+                    coverCacheFile.delete()
+                }
+                coverCacheFile.sink().buffer().use { output ->
+                    output.writeAll(input)
+                }
+            }
+        }
+
+        return SourceResult(
+            source = body.source(),
+            mimeType = "image/*",
+            dataSource = if (response.cacheResponse != null) DataSource.DISK else DataSource.NETWORK
+        )
+    }
+
+    private suspend fun awaitGetCall(manga: Manga, options: Options): Pair<Response, ResponseBody> {
+        val call = getCall(manga, options)
+        val response = call.await()
+        return response to checkNotNull(response.body) { "Null response source" }
+    }
+
+    private fun getCall(manga: Manga, options: Options): Call {
+        val source = sourceManager.get(manga.source) as? HttpSource
+        val request = Request.Builder().url(manga.thumbnail_url!!).also {
+            if (source != null) {
+                it.headers(source.headers)
+            }
+
+            val networkRead = options.networkCachePolicy.readEnabled
+            val diskRead = options.diskCachePolicy.readEnabled
+            when {
+                !networkRead && diskRead -> {
+                    it.cacheControl(CacheControl.FORCE_CACHE)
+                }
+                networkRead && !diskRead -> if (options.diskCachePolicy.writeEnabled) {
+                    it.cacheControl(CacheControl.FORCE_NETWORK)
+                } else {
+                    it.cacheControl(CACHE_CONTROL_FORCE_NETWORK_NO_CACHE)
+                }
+                !networkRead && !diskRead -> {
+                    // This causes the request to fail with a 504 Unsatisfiable Request.
+                    it.cacheControl(CACHE_CONTROL_NO_NETWORK_NO_CACHE)
+                }
+            }
+        }.build()
+
+        val client = source?.client?.newBuilder()?.cache(defaultClient.cache)?.build() ?: defaultClient
+        return client.newCall(request)
+    }
+
+    private fun fileLoader(manga: Manga): FetchResult {
+        return fileLoader(File(manga.thumbnail_url!!.substringAfter("file://")))
+    }
+
+    private fun fileLoader(file: File): FetchResult {
+        return SourceResult(
+            source = file.source().buffer(),
+            mimeType = "image/*",
+            dataSource = DataSource.DISK
+        )
+    }
+
+    private fun getResourceType(cover: String?): Type? {
+        return when {
+            cover.isNullOrEmpty() -> null
+            cover.startsWith("http", true) || cover.startsWith("Custom-", true) -> Type.URL
+            cover.startsWith("/") || cover.startsWith("file://") -> Type.File
+            else -> null
+        }
+    }
+
+    private enum class Type {
+        File, URL
+    }
+
+    companion object {
+        const val USE_CUSTOM_COVER = "use_custom_cover"
+
+        private val CACHE_CONTROL_FORCE_NETWORK_NO_CACHE = CacheControl.Builder().noCache().noStore().build()
+        private val CACHE_CONTROL_NO_NETWORK_NO_CACHE = CacheControl.Builder().noCache().onlyIfCached().build()
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/coil/TachiyomiImageDecoder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/coil/TachiyomiImageDecoder.kt
@ -0,0 +1,53 @@
+package eu.kanade.tachiyomi.data.coil
+
+import android.content.res.Resources
+import android.os.Build
+import androidx.core.graphics.drawable.toDrawable
+import coil.bitmap.BitmapPool
+import coil.decode.DecodeResult
+import coil.decode.Decoder
+import coil.decode.Options
+import coil.size.Size
+import eu.kanade.tachiyomi.util.system.ImageUtil
+import okio.BufferedSource
+import tachiyomi.decoder.ImageDecoder
+
+/**
+ * A [Decoder] that uses built-in [ImageDecoder] to decode images that is not supported by the system.
+ */
+class TachiyomiImageDecoder(private val resources: Resources) : Decoder {
+
+    override fun handles(source: BufferedSource, mimeType: String?): Boolean {
+        val type = source.peek().inputStream().use {
+            ImageUtil.findImageType(it)
+        }
+        return when (type) {
+            ImageUtil.ImageType.AVIF, ImageUtil.ImageType.JXL -> true
+            ImageUtil.ImageType.HEIF -> Build.VERSION.SDK_INT < Build.VERSION_CODES.O
+            else -> false
+        }
+    }
+
+    override suspend fun decode(
+        pool: BitmapPool,
+        source: BufferedSource,
+        size: Size,
+        options: Options
+    ): DecodeResult {
+        val decoder = source.use {
+            ImageDecoder.newInstance(it.inputStream())
+        }
+
+        check(decoder != null && decoder.width > 0 && decoder.height > 0) { "Failed to initialize decoder." }
+
+        val bitmap = decoder.decode(rgb565 = options.allowRgb565)
+        decoder.recycle()
+
+        check(bitmap != null) { "Failed to decode image." }
+
+        return DecodeResult(
+            drawable = bitmap.toDrawable(resources),
+            isSampled = false
+        )
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/DatabaseHelper.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/DatabaseHelper.kt
@ -1,29 +1,48 @@
 package eu.kanade.tachiyomi.data.database

 import android.content.Context
+import androidx.sqlite.db.SupportSQLiteOpenHelper
 import com.pushtorefresh.storio.sqlite.impl.DefaultStorIOSQLite
-import eu.kanade.tachiyomi.data.database.mappers.*
-import eu.kanade.tachiyomi.data.database.models.*
-import eu.kanade.tachiyomi.data.database.queries.*
+import eu.kanade.tachiyomi.data.database.mappers.CategoryTypeMapping
+import eu.kanade.tachiyomi.data.database.mappers.ChapterTypeMapping
+import eu.kanade.tachiyomi.data.database.mappers.HistoryTypeMapping
+import eu.kanade.tachiyomi.data.database.mappers.MangaCategoryTypeMapping
+import eu.kanade.tachiyomi.data.database.mappers.MangaTypeMapping
+import eu.kanade.tachiyomi.data.database.mappers.TrackTypeMapping
+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.History
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.MangaCategory
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.data.database.queries.CategoryQueries
+import eu.kanade.tachiyomi.data.database.queries.ChapterQueries
+import eu.kanade.tachiyomi.data.database.queries.HistoryQueries
+import eu.kanade.tachiyomi.data.database.queries.MangaCategoryQueries
+import eu.kanade.tachiyomi.data.database.queries.MangaQueries
+import eu.kanade.tachiyomi.data.database.queries.TrackQueries
+import io.requery.android.database.sqlite.RequerySQLiteOpenHelperFactory

 /**
 * This class provides operations to manage the database through its interfaces.
 */
-open class DatabaseHelper(context: Context)
-: MangaQueries, ChapterQueries, TrackQueries, CategoryQueries, MangaCategoryQueries, HistoryQueries {
+open class DatabaseHelper(context: Context) :
+    MangaQueries, ChapterQueries, TrackQueries, CategoryQueries, MangaCategoryQueries, HistoryQueries {
+
+    private val configuration = SupportSQLiteOpenHelper.Configuration.builder(context)
+        .name(DbOpenCallback.DATABASE_NAME)
+        .callback(DbOpenCallback())
+        .build()

    override val db = DefaultStorIOSQLite.builder()
-            .sqliteOpenHelper(DbOpenHelper(context))
-            .addTypeMapping(Manga::class.java, MangaTypeMapping())
-            .addTypeMapping(Chapter::class.java, ChapterTypeMapping())
-            .addTypeMapping(Track::class.java, TrackTypeMapping())
-            .addTypeMapping(Category::class.java, CategoryTypeMapping())
-            .addTypeMapping(MangaCategory::class.java, MangaCategoryTypeMapping())
-            .addTypeMapping(History::class.java, HistoryTypeMapping())
-            .build()
+        .sqliteOpenHelper(RequerySQLiteOpenHelperFactory().create(configuration))
+        .addTypeMapping(Manga::class.java, MangaTypeMapping())
+        .addTypeMapping(Chapter::class.java, ChapterTypeMapping())
+        .addTypeMapping(Track::class.java, TrackTypeMapping())
+        .addTypeMapping(Category::class.java, CategoryTypeMapping())
+        .addTypeMapping(MangaCategory::class.java, MangaCategoryTypeMapping())
+        .addTypeMapping(History::class.java, HistoryTypeMapping())
+        .build()

    inline fun inTransaction(block: () -> Unit) = db.inTransaction(block)
-
-    fun lowLevel() = db.lowLevel()
-
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/DbExtensions.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/DbExtensions.kt
@ -22,4 +22,3 @@ inline fun <T> StorIOSQLite.inTransactionReturn(block: () -> T): T {
        lowLevel().endTransaction()
    }
 }
-
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/DbOpenCallback.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/DbOpenCallback.kt
@ -0,0 +1,102 @@
+package eu.kanade.tachiyomi.data.database
+
+import androidx.sqlite.db.SupportSQLiteDatabase
+import androidx.sqlite.db.SupportSQLiteOpenHelper
+import eu.kanade.tachiyomi.data.database.tables.CategoryTable
+import eu.kanade.tachiyomi.data.database.tables.ChapterTable
+import eu.kanade.tachiyomi.data.database.tables.HistoryTable
+import eu.kanade.tachiyomi.data.database.tables.MangaCategoryTable
+import eu.kanade.tachiyomi.data.database.tables.MangaTable
+import eu.kanade.tachiyomi.data.database.tables.TrackTable
+
+class DbOpenCallback : SupportSQLiteOpenHelper.Callback(DATABASE_VERSION) {
+
+    companion object {
+        /**
+         * Name of the database file.
+         */
+        const val DATABASE_NAME = "tachiyomi.db"
+
+        /**
+         * Version of the database.
+         */
+        const val DATABASE_VERSION = 14
+    }
+
+    override fun onCreate(db: SupportSQLiteDatabase) = with(db) {
+        execSQL(MangaTable.createTableQuery)
+        execSQL(ChapterTable.createTableQuery)
+        execSQL(TrackTable.createTableQuery)
+        execSQL(CategoryTable.createTableQuery)
+        execSQL(MangaCategoryTable.createTableQuery)
+        execSQL(HistoryTable.createTableQuery)
+
+        // DB indexes
+        execSQL(MangaTable.createUrlIndexQuery)
+        execSQL(MangaTable.createLibraryIndexQuery)
+        execSQL(ChapterTable.createMangaIdIndexQuery)
+        execSQL(ChapterTable.createUnreadChaptersIndexQuery)
+        execSQL(HistoryTable.createChapterIdIndexQuery)
+    }
+
+    override fun onUpgrade(db: SupportSQLiteDatabase, oldVersion: Int, newVersion: Int) {
+        if (oldVersion < 2) {
+            db.execSQL(ChapterTable.sourceOrderUpdateQuery)
+
+            // Fix kissmanga covers after supporting cloudflare
+            db.execSQL(
+                """UPDATE mangas SET thumbnail_url =
+                    REPLACE(thumbnail_url, '93.174.95.110', 'kissmanga.com') WHERE source = 4"""
+            )
+        }
+        if (oldVersion < 3) {
+            // Initialize history tables
+            db.execSQL(HistoryTable.createTableQuery)
+            db.execSQL(HistoryTable.createChapterIdIndexQuery)
+        }
+        if (oldVersion < 4) {
+            db.execSQL(ChapterTable.bookmarkUpdateQuery)
+        }
+        if (oldVersion < 5) {
+            db.execSQL(ChapterTable.addScanlator)
+        }
+        if (oldVersion < 6) {
+            db.execSQL(TrackTable.addTrackingUrl)
+        }
+        if (oldVersion < 7) {
+            db.execSQL(TrackTable.addLibraryId)
+        }
+        if (oldVersion < 8) {
+            db.execSQL("DROP INDEX IF EXISTS mangas_favorite_index")
+            db.execSQL(MangaTable.createLibraryIndexQuery)
+            db.execSQL(ChapterTable.createUnreadChaptersIndexQuery)
+        }
+        if (oldVersion < 9) {
+            db.execSQL(TrackTable.addStartDate)
+            db.execSQL(TrackTable.addFinishDate)
+        }
+        if (oldVersion < 10) {
+            db.execSQL(MangaTable.addCoverLastModified)
+        }
+        if (oldVersion < 11) {
+            db.execSQL(MangaTable.addDateAdded)
+            db.execSQL(MangaTable.backfillDateAdded)
+        }
+        if (oldVersion < 12) {
+            db.execSQL(MangaTable.addNextUpdateCol)
+        }
+        if (oldVersion < 13) {
+            db.execSQL(TrackTable.renameTableToTemp)
+            db.execSQL(TrackTable.createTableQuery)
+            db.execSQL(TrackTable.insertFromTempTable)
+            db.execSQL(TrackTable.dropTempTable)
+        }
+        if (oldVersion < 14) {
+            db.execSQL(ChapterTable.fixDateUploadIfNeeded)
+        }
+    }
+
+    override fun onConfigure(db: SupportSQLiteDatabase) {
+        db.setForeignKeyConstraintsEnabled(true)
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/DbOpenHelper.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/DbOpenHelper.kt
@ -1,63 +0,0 @@
-package eu.kanade.tachiyomi.data.database
-
-import android.content.Context
-import android.database.sqlite.SQLiteDatabase
-import android.database.sqlite.SQLiteOpenHelper
-import eu.kanade.tachiyomi.data.database.tables.*
-
-class DbOpenHelper(context: Context)
-: SQLiteOpenHelper(context, DATABASE_NAME, null, DATABASE_VERSION) {
-
-    companion object {
-        /**
-         * Name of the database file.
-         */
-        const val DATABASE_NAME = "tachiyomi.db"
-
-        /**
-         * Version of the database.
-         */
-        const val DATABASE_VERSION = 5
-    }
-
-    override fun onCreate(db: SQLiteDatabase) = with(db) {
-        execSQL(MangaTable.createTableQuery)
-        execSQL(ChapterTable.createTableQuery)
-        execSQL(TrackTable.createTableQuery)
-        execSQL(CategoryTable.createTableQuery)
-        execSQL(MangaCategoryTable.createTableQuery)
-        execSQL(HistoryTable.createTableQuery)
-
-        // DB indexes
-        execSQL(MangaTable.createUrlIndexQuery)
-        execSQL(MangaTable.createFavoriteIndexQuery)
-        execSQL(ChapterTable.createMangaIdIndexQuery)
-        execSQL(HistoryTable.createChapterIdIndexQuery)
-    }
-
-    override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
-        if (oldVersion < 2) {
-            db.execSQL(ChapterTable.sourceOrderUpdateQuery)
-
-            // Fix kissmanga covers after supporting cloudflare
-            db.execSQL("""UPDATE mangas SET thumbnail_url =
-                    REPLACE(thumbnail_url, '93.174.95.110', 'kissmanga.com') WHERE source = 4""")
-        }
-        if (oldVersion < 3) {
-            // Initialize history tables
-            db.execSQL(HistoryTable.createTableQuery)
-            db.execSQL(HistoryTable.createChapterIdIndexQuery)
-        }
-        if (oldVersion < 4) {
-            db.execSQL(ChapterTable.bookmarkUpdateQuery)
-        }
-        if (oldVersion < 5) {
-            db.execSQL(ChapterTable.addScanlator)
-        }
-    }
-
-    override fun onConfigure(db: SQLiteDatabase) {
-        db.setForeignKeyConstraintsEnabled(true)
-    }
-
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/DbProvider.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/DbProvider.kt
@ -5,5 +5,4 @@ import com.pushtorefresh.storio.sqlite.impl.DefaultStorIOSQLite
 interface DbProvider {

    val db: DefaultStorIOSQLite
-
-}
+}
--- a/Show More
+++ b/Show More