Release 0.10.6

Hide incomplete NSFW source labelling settings
Force MAL logout on update
2025-06-26 11:07:51 +02:00 · 2020-12-12 11:29:21 -05:00 · 2020-12-12 11:28:50 -05:00 · 2020-12-12 11:26:42 -05:00 · 2020-12-12 11:26:29 -05:00 · 2020-12-12 10:53:04 -05:00
564 changed files with 26680 additions and 12814 deletions
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@ -1,10 +1,10 @@
-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).**
+1. **Before reporting a new issue, take a look at the [FAQ](https://tachiyomi.org/help/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/tachiyomi)
 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)
+    * [Translations](https://tachiyomi.org/help/contribution/#translation)
 4. After following 1. and 3. you can [open your issue](https://github.com/inorichi/tachiyomi/issues/new)

 ***
@ -14,9 +14,9 @@
 * Catalogue requests should be created at https://github.com/inorichi/tachiyomi-extensions#readme, not here

 # Bugs
-* Include version (Setting > About > Version)
+* Include version (More > 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
+ * 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)
@ -29,5 +29,5 @@ 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"
+* Write a detailed issue, explaining what it should do or how. Avoid writing just "like X app does"
 * Include screenshot (if needed)
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@ -2,7 +2,7 @@

 I acknowledge that:

- I have updated to the latest version of the app (stable is v0.8.5)
+- I have updated to the latest version of the app (stable is v0.10.5)
 - I have updated all extensions
 - If this is an issue with an extension, that I should be opening an issue in https://github.com/inorichi/tachiyomi-extensions

@ -10,7 +10,7 @@ I acknowledge that:

 ---

-### Device information
+## Device information
 * Tachiyomi version: ?
 * Android version: ?
 * Device: ?
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -1,7 +1,7 @@
 ---
 name: "🐞 Bug report"
 about: Report a bug
-title: "[Bug] Write short description here"
+title: "[Bug] <Write short description here>"
 labels: "bug"
 ---

@ -9,7 +9,7 @@ labels: "bug"

 I acknowledge that:

- I have updated to the latest version of the app (stable is v0.8.5)
+- I have updated to the latest version of the app (stable is v0.10.5)
 - I have updated all extensions
 - If this is an issue with an extension, that I should be opening an issue in https://github.com/inorichi/tachiyomi-extensions

@ -17,7 +17,7 @@ I acknowledge that:

 ---

-### Device information
+## Device information
 * Tachiyomi version: ?
 * Android version: ?
 * Device: ?
@ -32,5 +32,5 @@ This should happen.
 ### Actual behavior
 This happened instead.

-### Other details
+## Other details
 Additional details and attachments.
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -0,0 +1,8 @@
+blank_issues_enabled: false
+contact_links:
+  - name: Tachiyomi help website
+    url: https://tachiyomi.org/help/
+    about: Common questions are answered here.
+  - name: Tachiyomi extensions GitHub repository
+    url: https://github.com/inorichi/tachiyomi-extensions
+    about: Issues about an extension/source/catalogue should be opened here instead.
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@ -1,7 +1,7 @@
 ---
 name: "🌟 Feature request"
 about: Suggest a feature to improve Tachiyomi
-title: "[Feature Request] Write short description here"
+title: "[Feature Request] <Write short description here>"
 labels: "feature"
 ---

@ -9,7 +9,7 @@ labels: "feature"

 I acknowledge that:

- I have updated to the latest version of the app (stable is v0.8.5)
+- I have updated to the latest version of the app (stable is v0.10.5)
 - I have updated all extensions
 - If this is an issue with an extension, that I should be opening an issue in https://github.com/inorichi/tachiyomi-extensions

@ -17,8 +17,8 @@ I acknowledge that:

 ---

-### Why/User Benefit/User Problem
+## Why/User Benefit/User Problem
 (explain why this feature should be added)

-### What/Requirements
+## What/Requirements
 (explain how this feature would behave)
--- a/.github/ISSUE_TEMPLATE/source_issue.md
+++ b/.github/ISSUE_TEMPLATE/source_issue.md
@ -2,7 +2,7 @@
 name: "Extension/source/catalogue issue"
 about: "Do not open an issue here. See https://github.com/inorichi/tachiyomi-extensions"
 title: "THIS ISSUE IS IN THE WRONG REPO; SEE https://github.com/inorichi/tachiyomi-extensions"
-labels: "catalog"
+labels: "catalog, invalid"
 ---

-DO NOT OPEN AN ISSUE IN THIS REPO. SEE https://github.com/inorichi/tachiyomi-extensions
+DO NOT OPEN AN ISSUE IN THIS REPO. SEE https://github.com/inorichi/tachiyomi-extensions
--- a/.github/readme-images/app-icon.png
+++ b/.github/readme-images/app-icon.png
--- a/.github/readme-images/screens.png
+++ b/.github/readme-images/screens.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.yml
+++ b/.github/workflows/build.yml
@ -0,0 +1,95 @@
+name: CI
+on:
+  push:
+    branches:
+      - dev
+    tags:
+      - v*
+  pull_request:
+
+jobs:
+  check_wrapper:
+    name: Validate Gradle Wrapper
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Clone repo
+        uses: actions/checkout@v2
+
+      - name: Validate Gradle Wrapper
+        uses: gradle/wrapper-validation-action@v1
+
+  build:
+    name: Build app
+    needs: check_wrapper
+    if: "!startsWith(github.event.head_commit.message, '[SKIP CI]')"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Cancel previous runs
+        uses: styfle/cancel-workflow-action@0.5.0
+        with:
+          access_token: ${{ github.token }}
+
+      - name: Clone repo
+        uses: actions/checkout@v2
+
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v1
+        with:
+          java-version: 1.8
+
+      - name: Copy CI gradle.properties
+        run: |
+          mkdir -p ~/.gradle
+          cp .github/runner-files/ci-gradle.properties ~/.gradle/gradle.properties
+
+      - name: Build app
+        uses: eskatos/gradle-command-action@v1
+        with:
+          arguments: assembleStandardRelease
+          wrapper-cache-enabled: true
+          dependencies-cache-enabled: true
+          configuration-cache-enabled: true
+
+      # Sign APK and create release for tags
+
+      - name: Get tag name
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'inorichi/tachiyomi'
+        id: get_tag_name
+        run: |
+          set -x
+          echo "VERSION_TAG=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
+
+      - name: Sign APK
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'inorichi/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: Create release
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'inorichi/tachiyomi'
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ env.VERSION_TAG }}
+          release_name: Tachiyomi ${{ env.VERSION_TAG }}
+          draft: true
+          prerelease: false
+
+      - name: Upload APK to release
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'inorichi/tachiyomi'
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ${{ env.SIGNED_RELEASE_FILE }}
+          asset_name: tachiyomi-${{ env.VERSION_TAG }}.apk
+          asset_content_type: application/vnd.android.package-archive
--- a/.github/workflows/issue_closer.yml
+++ b/.github/workflows/issue_closer.yml
@ -1,13 +1,37 @@
 name: Issue closer
-on: [issues]
+on:
+  issues:
+    types: [opened, edited, reopened]
+
 jobs:
  autoclose:
    runs-on: ubuntu-latest
    steps:
-    - name: Autoclose issue
-      uses: arkon/issue-closer-action@v1.0
+    - name: Autoclose when created in wrong repo
+      uses: arkon/issue-closer-action@v1.1
      with:
        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        issue-close-message: "@${issue.user.login} this issue was automatically closed because it was not filled in correctly or the acknowledgment section was not removed."
-        issue-title-pattern: ".*THIS ISSUE IS IN THE WRONG REPO.*"
-        issue-body-pattern: ".*DELETE THIS SECTION IF YOU HAVE READ AND ACKNOWLEDGED IT.*"
+        type: title
+        regex: ".*THIS ISSUE IS IN THE WRONG REPO.*"
+        message: "@${issue.user.login} this issue was automatically closed because it was not opened in the correct repo, as the template mentioned."
+    - name: Autoclose when no short description provided
+      uses: arkon/issue-closer-action@v1.1
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        type: title
+        regex: ".*<Write short description here>*"
+        message: "@${issue.user.login} this issue was automatically closed because you did not fill out the description in the title."
+    - name: Autoclose when body acknowledgement section not removed
+      uses: arkon/issue-closer-action@v1.1
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        type: body
+        regex: ".*DELETE THIS SECTION IF YOU HAVE READ AND ACKNOWLEDGED IT.*"
+        message: "@${issue.user.login} this issue was automatically closed because the acknowledgment section was not removed."
+    - name: Autoclose when body requested information not filled out
+      uses: arkon/issue-closer-action@v1.1
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        type: body
+        regex: ".*\\* (Tachiyomi version|Android version|Device): \\?.*"
+        message: "@${issue.user.login} this issue was automatically closed because the requested information was not filled out."
--- a/.travis.yml
+++ b/.travis.yml
@ -1,74 +0,0 @@
-dist: trusty
-language: android
-
-android:
-  components:
-    - tools
-    - platform-tools
-    - build-tools-29.0.3
-    - android-29
-    - extra-android-m2repository
-    - extra-google-m2repository
-    - extra-android-support
-    - extra-google-google_play_services
-
-  licenses:
-    - 'android-sdk-license-.+'
-    - 'android-sdk-preview-license-.+'
-
-before_install:
-  - yes | sdkmanager "platforms;android-29" # workaround for accepting the license
-  - 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 "$HOME/.android";
-    fi
-  - mkdir "$ANDROID_HOME/licenses" || true
-  - echo -e "\n24333f8a63b6825ea9c5514f83c2829b004d1fee" > "$ANDROID_HOME/licenses/android-sdk-license"
-  - echo -e "\n84831b9409646a918e30573bab4c9c91346d8abd" > "$ANDROID_HOME/licenses/android-sdk-preview-license"
-
-install:
-  - echo y | sdkmanager "ndk-bundle"
-
-before_script:
-  - export ANDROID_NDK_HOME=$ANDROID_HOME/ndk-bundle
-
-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 $TRAVIS_TAG"
-      repo: inorichi/tachiyomi
-
-env:
-  global:
-    - secure: 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
-    - secure: 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
-    - secure: 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
-    - secure: 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
-    - secure: PJPDkUg1zc57brxUvNpSh+Q3ZEaGpBqZzwDavqslkn0WmjBTLrE6/OG7TFHKNmO+P56qFl+pMEKqThxqR3+4bWEeEx8ykkixDVzxNJMmws+7A7ImJ75iQyB6giMW/4tykVMMHgIPNAdcnI8VOWn0LGHnpFWUd70yoyAGX8s6cspHCKgcuWMA3GS410KJfHpyd0B9/QS7ZyWzSETW7zSPyLPa81SBO95EhOF3TOGZYLt/mBhdtU3YGFs4k9fZ8jDDcm9XmBfqVlUhb8HiZcxJiZDdRvxODERfNnwc47uaJk6+kxGDzIW2uAxrMXXVKkG04GeMOokXoR9kW1Hl2JmoyySLKLZmB7I/XEtVWdzZw16mWi+4zmhjLhfB0phSW+/5I+0VtZZ6jO031J5FL/JqVrcq1ws/aw4QlaOdPUco/x2u4LNHyYYgOi5arD9xSyu6IRy0jCC4Xa1zuqM5adGJX+rZyVfKZ0TxOW661HTxlo8COtkB2i0WR2deZGVN75ooCAEO8DauQoUcFH1OelahmPtzVs1/6ZczuxGdp9ED7ZQq9NHEOsOdUGCj/D79Dm1hWFQsIsslnnGYWitAycNCgEwmlt2Q6fbrv2CJrmLqZ9a9r3AhzxoHn9Qx1GyuyfhZJzm/6Ff2kcOjma2kcz13KUwTxdW+2G5dDCotK3f7aiI=
-    - secure: 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
-    - secure: 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
--- a/.travis/build.sh
+++ b/.travis/build.sh
@ -1,20 +0,0 @@
-#!/bin/bash
-
-git fetch --unshallow #required for commit count
-
-if [ -z "$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/PREVIEW_RELEASE_NOTES.md
+++ b/PREVIEW_RELEASE_NOTES.md
@ -0,0 +1,28 @@
+### r1810
+- Background jobs were migrated to a new system. You may need to toggle the settings to ensure they
+run properly. This includes app updates, library updates, and automatic backups.
+
+### r1340
+- A new screen for managing extensions was added. If you previously installed extensions from FDroid,
+you will have to uninstall all of them first (tap on the extension then uninstall), otherwise you won't be able
+to update them due to signature mismatch. You won't lose anything in this process as the extensions themselves
+don't store anything.
+
+### r959
+- The download manager has been rewritten and it's possible some of your downloads
+aren't recognized anymore. You may have to check your downloads folder and manually delete those.
+- You can now download to any folder in your SD card.
+- The download directory setting has been reset.
+
+### r857
+- **Important!** Delete after read has been updated.
+This means the value has been reset set to disabled.
+This can be changed in Settings > Downloads
+
+### r736
+- **Important!** Now chapters follow the order of the sources. **It's required that you update your entire library
+before reading in order for them to be synced.** Old behavior can be restored for a manga in the overflow menu of the chapters tab.
+
+### r724
+- Kissmanga covers may not load anymore. The only workaround is to update the details of the manga
+from the info tab, or clearing the database (the latter won't fix covers from library manga).
--- a/README.md
+++ b/README.md
@ -1,6 +1,6 @@
 | 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=download)](https://github.com/inorichi/tachiyomi/releases) | [![latest weekly build](https://img.shields.io/badge/download-latest%20build-blue.svg)](http://tachiyomi.kanade.eu/latest) | [![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)](https://discord.gg/tachiyomi) |
+| ![CI](https://github.com/inorichi/tachiyomi/workflows/CI/badge.svg?branch=dev&event=push) | [![stable release](https://img.shields.io/github/release/inorichi/tachiyomi.svg?maxAge=3600&label=download)](https://github.com/inorichi/tachiyomi/releases) | [![latest weekly build](https://img.shields.io/github/v/release/tachiyomiorg/android-app-preview.svg?maxAge=3600&label=download)](https://github.com/tachiyomiorg/android-app-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)](https://discord.gg/tachiyomi) |


 # ![app icon](./.github/readme-images/app-icon.png)Tachiyomi
@ -23,7 +23,7 @@ Features include:
 ## Download
 Get the app from our [releases page](https://github.com/inorichi/tachiyomi/releases).

-If you want to try new features before they get to the stable release, you can download the preview version [here](http://tachiyomi.kanade.eu/latest).
+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/android-app-preview/releases).

 ## Issues, Feature Requests and Contributing

@ -31,14 +31,14 @@ Please make sure to read the full guidelines. Your issue may be closed without w

 <details><summary>Issues</summary>

-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).**
+1. **Before reporting a new issue, take a look at the [FAQ](https://tachiyomi.org/help/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/tachiyomi)

 </details>

 <details><summary>Bugs</summary>

-* Include version (Setting > About > Version)
+* 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)
--- a/app/build.gradle
+++ b/app/build.gradle
@ -1,10 +1,13 @@
+import org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile
+
 import java.text.SimpleDateFormat

 apply plugin: 'com.android.application'
-apply plugin: 'com.google.android.gms.oss-licenses-plugin'
+apply plugin: 'com.mikepenz.aboutlibraries.plugin'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'
+apply plugin: 'kotlinx-serialization'
 apply plugin: 'com.github.zellius.shortcut-helper'

 shortcutHelper.filePath = './shortcuts.xml'
@ -30,16 +33,17 @@ ext {
 }

 android {
-    compileSdkVersion 29
-    buildToolsVersion '29.0.3'
+    compileSdkVersion AndroidConfig.compileSdk
+    buildToolsVersion AndroidConfig.buildTools
+    ndkVersion AndroidConfig.ndk

    defaultConfig {
        applicationId "eu.kanade.tachiyomi"
-        minSdkVersion 21
-        targetSdkVersion 29
+        minSdkVersion AndroidConfig.minSdk
+        targetSdkVersion AndroidConfig.targetSdk
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-        versionCode 43
-        versionName "0.9.0"
+        versionCode 52
+        versionName "0.10.6"

        buildConfigField "String", "COMMIT_COUNT", "\"${getCommitCount()}\""
        buildConfigField "String", "COMMIT_SHA", "\"${getGitSha()}\""
@ -53,8 +57,8 @@ android {
        }
    }

-    viewBinding {
-        enabled = true
+    buildFeatures {
+        viewBinding = true
    }

    buildTypes {
@ -63,9 +67,13 @@ android {
            applicationIdSuffix ".debug"
        }
        release {
-            minifyEnabled true
-            shrinkResources true
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            postprocessing {
+                obfuscate false
+                optimizeCode true
+                removeUnusedCode false
+                removeUnusedResources true
+                proguardFiles 'proguard-rules.pro'
+            }
        }
    }

@ -93,18 +101,25 @@ android {
        exclude 'META-INF/NOTICE'
    }

+    dependenciesInfo {
+        includeInApk = false
+    }
+
    lintOptions {
+        disable 'MissingTranslation'
+        disable 'ExtraTranslation'
+
        abortOnError false
        checkReleaseBuilds false
    }

    compileOptions {
-        sourceCompatibility = 1.8
-        targetCompatibility = 1.8
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
    }

    kotlinOptions {
-        jvmTarget = "1.8"
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
    }
 }

@ -114,30 +129,35 @@ androidExtensions {

 dependencies {

-    // Modified dependencies
-    implementation 'com.github.inorichi:subsampling-scale-image-view:ac0dae7'
-    implementation 'com.github.inorichi:junrar-android:634c1f5'
+    // Source models and interfaces from Tachiyomi 1.x
+    implementation 'tachiyomi.sourceapi:source-api:1.1'

-    // Android support library
-    implementation 'androidx.appcompat:appcompat:1.1.0'
+    // AndroidX libraries
+    implementation 'androidx.annotation:annotation:1.2.0-alpha01'
+    implementation 'androidx.appcompat:appcompat:1.3.0-alpha02'
+    implementation 'androidx.biometric:biometric-ktx:1.2.0-alpha01'
+    implementation 'androidx.browser:browser:1.3.0'
    implementation 'androidx.cardview:cardview:1.0.0'
-    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
-    implementation 'androidx.recyclerview:recyclerview:1.1.0'
-    implementation 'androidx.preference:preference:1.1.1'
-    implementation 'androidx.annotation:annotation:1.1.0'
-    implementation 'androidx.browser:browser:1.2.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.0-alpha1'
+    implementation 'androidx.coordinatorlayout:coordinatorlayout:1.1.0'
+    implementation 'androidx.core:core-ktx:1.5.0-alpha05'
    implementation 'androidx.multidex:multidex:2.0.1'
-    implementation 'androidx.biometric:biometric:1.0.1'
+    implementation 'androidx.preference:preference-ktx:1.1.1'
+    implementation 'androidx.recyclerview:recyclerview:1.2.0-beta01'
+    implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.2.0-alpha01'

-    final lifecycle_version = '2.2.0'
+    final lifecycle_version = '2.3.0-beta01'
    implementation "androidx.lifecycle:lifecycle-common-java8:$lifecycle_version"
-    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
+    implementation "androidx.lifecycle:lifecycle-process:$lifecycle_version"
    implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"

-    // UI library
-    implementation 'com.google.android.material:material:1.1.0'
+    // Job scheduling
+    implementation "androidx.work:work-runtime-ktx:2.5.0-beta02"

-    standardImplementation 'com.google.firebase:firebase-core:17.4.0'
+    // UI library
+    implementation 'com.google.android.material:material:1.3.0-alpha04'
+
+    standardImplementation 'com.google.firebase:firebase-core:18.0.0'

    // ReactiveX
    implementation 'io.reactivex:rxandroid:1.2.1'
@ -146,18 +166,26 @@ dependencies {
    implementation 'com.github.pwittchen:reactivenetwork:0.13.0'

    // Network client
-    final okhttp_version = '4.5.0'
+    final okhttp_version = '4.10.0-RC1'
    implementation "com.squareup.okhttp3:okhttp:$okhttp_version"
    implementation "com.squareup.okhttp3:logging-interceptor:$okhttp_version"
-    implementation 'com.squareup.okio:okio:2.6.0'
+    implementation "com.squareup.okhttp3:okhttp-dnsoverhttps:$okhttp_version"
+    implementation 'com.squareup.okio:okio:2.9.0'
+
+    // TLS 1.3 support for Android < 10
+    implementation 'org.conscrypt:conscrypt-android:2.5.1'

    // REST
-    final retrofit_version = '2.8.1'
+    final retrofit_version = '2.9.0'
    implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
+    implementation "com.jakewharton.retrofit:retrofit2-kotlinx-serialization-converter:0.8.0"
    implementation "com.squareup.retrofit2:converter-gson:$retrofit_version"
    implementation "com.squareup.retrofit2:adapter-rxjava:$retrofit_version"

    // JSON
+    final kotlin_serialization_version = '1.0.1'
+    implementation "org.jetbrains.kotlinx:kotlinx-serialization-json:$kotlin_serialization_version"
+    implementation "org.jetbrains.kotlinx:kotlinx-serialization-protobuf:$kotlin_serialization_version"
    implementation 'com.google.code.gson:gson:2.8.6'
    implementation 'com.github.salomonbrys.kotson:kotson:2.5.0'

@ -167,30 +195,22 @@ dependencies {
    // Disk
    implementation 'com.jakewharton:disklrucache:2.0.2'
    implementation 'com.github.inorichi:unifile:e9ee588'
+    implementation 'com.github.junrar:junrar:7.4.0'

    // HTML parser
    implementation 'org.jsoup:jsoup:1.13.1'

-    // Job scheduling
-    final work_version = '2.3.4'
-    implementation "androidx.work:work-runtime:$work_version"
-    implementation "androidx.work:work-runtime-ktx:$work_version"
-
-    // Changelog
-    implementation 'com.github.gabrielemariotti.changeloglib:changelog:2.1.0'
-
    // Database
-    implementation 'androidx.sqlite:sqlite:2.1.0'
+    implementation 'androidx.sqlite:sqlite-ktx:2.1.0'
    implementation 'com.github.inorichi.storio:storio-common:8be19de@aar'
    implementation 'com.github.inorichi.storio:storio-sqlite:8be19de@aar'
-    implementation 'io.requery:sqlite-android:3.31.0'
+    implementation 'io.requery:sqlite-android:3.33.0'

    // Preferences
-    implementation 'com.f2prateek.rx.preferences:rx-preferences:1.0.2'
-    implementation 'com.github.tfcporciuncula:flow-preferences:1.1.1'
+    implementation 'com.github.tfcporciuncula.flow-preferences:flow-preferences:1.3.3'

    // Model View Presenter
-    final nucleus_version = '6.0.0'
+    final nucleus_version = '3.0.0'
    implementation "info.android15.nucleus:nucleus:$nucleus_version"
    implementation "info.android15.nucleus:nucleus-support-v7:$nucleus_version"

@ -203,12 +223,16 @@ dependencies {
    implementation "com.github.bumptech.glide:okhttp3-integration:$glide_version"
    kapt "com.github.bumptech.glide:compiler:$glide_version"

+    implementation 'com.github.tachiyomiorg:subsampling-scale-image-view:6caf219'
+
    // Logging
    implementation 'com.jakewharton.timber:timber:4.7.1'

    // Crash reports
-    final acra_version = '5.5.0'
-    implementation "ch.acra:acra-http:$acra_version"
+    implementation 'ch.acra:acra-http:5.7.0'
+
+    // Sort
+    implementation 'com.github.gpanther:java-nat-sort:natural-comparator-1.1'

    // UI
    implementation 'com.dmitrymalkovich.android:material-design-dimens:1.4'
@ -217,7 +241,6 @@ dependencies {
    implementation 'eu.davidea:flexible-adapter-ui:1.0.0'
    implementation 'com.nononsenseapps:filepicker:2.5.2'
    implementation 'com.nightlynexus.viewstatepageradapter:viewstatepageradapter:1.1.0'
-    implementation 'com.github.mthli:Slice:v1.3'
    implementation 'com.github.chrisbanes:PhotoView:2.3.0'
    implementation 'com.github.carlosesco:DirectionalViewPager:a844dbca0a'

@ -232,19 +255,22 @@ dependencies {
    implementation("com.bluelinelabs:conductor-support:2.1.5") {
        exclude group: "com.android.support"
    }
-    implementation 'com.github.inorichi:conductor-support-preference:a32c357'
+    implementation 'com.github.tachiyomiorg:conductor-support-preference:1.1.1'

    // FlowBinding
-    final flowbinding_version = '0.11.1'
+    final flowbinding_version = '0.12.0'
    implementation "io.github.reactivecircus.flowbinding:flowbinding-android:$flowbinding_version"
    implementation "io.github.reactivecircus.flowbinding:flowbinding-appcompat:$flowbinding_version"
    implementation "io.github.reactivecircus.flowbinding:flowbinding-recyclerview:$flowbinding_version"
    implementation "io.github.reactivecircus.flowbinding:flowbinding-swiperefreshlayout:$flowbinding_version"
    implementation "io.github.reactivecircus.flowbinding:flowbinding-viewpager:$flowbinding_version"

+    // Licenses
+    implementation "com.mikepenz:aboutlibraries:$BuildPluginsVersion.ABOUTLIB_PLUGIN"
+
    // Tests
    testImplementation 'junit:junit:4.13'
-    testImplementation 'org.assertj:assertj-core:3.12.2'
+    testImplementation 'org.assertj:assertj-core:3.16.1'
    testImplementation 'org.mockito:mockito-core:1.10.19'

    final robolectric_version = '3.1.4'
@ -252,45 +278,50 @@ dependencies {
    testImplementation "org.robolectric:shadows-multidex:$robolectric_version"
    testImplementation "org.robolectric:shadows-play-services:$robolectric_version"

-    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-reflect:$BuildPluginsVersion.KOTLIN"

-    final coroutines_version = '1.3.5'
+    final coroutines_version = '1.4.1'
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"

-    implementation 'com.google.android.gms:play-services-oss-licenses:17.0.0'
-
    // For detecting memory leaks; see https://square.github.io/leakcanary/
-//    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.2'
+//    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.4'
 }

 buildscript {
-    ext.kotlin_version = '1.3.72'
    repositories {
        mavenCentral()
    }
    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$BuildPluginsVersion.KOTLIN"
    }
 }

 repositories {
    mavenCentral()
+    jcenter()
 }

 // See https://kotlinlang.org/docs/reference/experimental.html#experimental-status-of-experimental-api-markers
-tasks.withType(org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile).all {
-    kotlinOptions.freeCompilerArgs += ["-Xopt-in=kotlin.Experimental"]
+tasks.withType(AbstractKotlinCompile).all {
+    kotlinOptions.freeCompilerArgs += [
+            "-Xopt-in=kotlin.Experimental",
+            "-Xopt-in=kotlin.RequiresOptIn",
+            "-Xuse-experimental=kotlin.ExperimentalStdlibApi",
+            "-Xuse-experimental=kotlinx.coroutines.FlowPreview",
+            "-Xuse-experimental=kotlinx.coroutines.ExperimentalCoroutinesApi",
+            "-Xuse-experimental=kotlinx.serialization.ExperimentalSerializationApi",
+    ]
 }

 // Duplicating Hebrew string assets due to some locale code issues on different devices
-task copyResources(type: Copy) {
+task copyHebrewStrings(type: Copy) {
    from './src/main/res/values-he'
    into './src/main/res/values-iw'
    include '**/*'
 }

-preBuild.dependsOn(ktlintFormat, copyResources)
+preBuild.dependsOn(formatKotlin, copyHebrewStrings)

 if (getGradle().getStartParameter().getTaskRequests().toString().contains("Standard")) {
    apply plugin: 'com.google.gms.google-services'
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@ -23,21 +23,6 @@
    <init>();
 }

-# 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
 -dontwarn sun.misc.**

@ -71,3 +56,24 @@
 -keep class * implements com.google.gson.TypeAdapterFactory
 -keep class * implements com.google.gson.JsonSerializer
 -keep class * implements com.google.gson.JsonDeserializer
+
+
+## kotlinx.serialization ##
+
+-keepattributes *Annotation*, InnerClasses
+-dontnote kotlinx.serialization.AnnotationsKt # core serialization annotations
+
+-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(...);
+}
--- 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
@ -12,7 +12,6 @@
    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
    <uses-permission android:name="android.permission.REQUEST_DELETE_PACKAGES" />
    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
-    <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />

    <application
        android:name=".App"
@ -26,7 +25,7 @@
        android:requestLegacyExternalStorage="true"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:theme="@style/Theme.Tachiyomi.Light"
-        android:usesCleartextTraffic="true">
+        android:networkSecurityConfig="@xml/network_security_config">
        <activity
            android:name=".ui.main.MainActivity"
            android:launchMode="singleTop"
@ -43,7 +42,8 @@
        <activity
            android:name=".ui.main.DeepLinkActivity"
            android:launchMode="singleTask"
-            android:theme="@android:style/Theme.NoDisplay">
+            android:theme="@android:style/Theme.NoDisplay"
+            android:label="@string/process_text_action_name">
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
                <action android:name="com.google.android.gms.actions.SEARCH_ACTION" />
@ -54,6 +54,11 @@
                <action android:name="eu.kanade.tachiyomi.SEARCH" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
+            <intent-filter>
+                <action android:name="android.intent.action.PROCESS_TEXT" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="text/plain" />
+            </intent-filter>

            <meta-data
                android:name="android.app.searchable"
@ -61,7 +66,14 @@
        </activity>
        <activity
            android:name=".ui.reader.ReaderActivity"
-            android:launchMode="singleTask" />
+            android:launchMode="singleTask">
+            <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=".ui.security.BiometricUnlockActivity"
            android:theme="@style/Theme.Splash" />
@ -86,6 +98,9 @@
                    android:scheme="tachiyomi" />
            </intent-filter>
        </activity>
+        <activity
+            android:name=".ui.setting.track.MyAnimeListLoginActivity"
+            android:configChanges="uiMode|orientation|screenSize" />
        <activity
            android:name=".ui.setting.track.ShikimoriLoginActivity"
            android:label="Shikimori">
@ -119,13 +134,6 @@
            android:name=".extension.util.ExtensionInstallActivity"
            android:theme="@android:style/Theme.Translucent.NoTitleBar" />

-        <activity
-            android:name="com.google.android.gms.oss.licenses.OssLicensesMenuActivity"
-            android:theme="@style/Theme.MaterialComponents" />
-        <activity
-            android:name="com.google.android.gms.oss.licenses.OssLicensesActivity"
-            android:theme="@style/Theme.MaterialComponents" />
-
        <provider
            android:name="androidx.core.content.FileProvider"
            android:authorities="${applicationId}.provider"
--- a/app/src/main/java/eu/kanade/tachiyomi/App.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/App.kt
@ -3,6 +3,7 @@ package eu.kanade.tachiyomi
 import android.app.Application
 import android.content.Context
 import android.content.res.Configuration
+import android.os.Build
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleObserver
 import androidx.lifecycle.OnLifecycleEvent
@ -16,11 +17,13 @@ import org.acra.ACRA
 import org.acra.annotation.AcraCore
 import org.acra.annotation.AcraHttpSender
 import org.acra.sender.HttpSender
+import org.conscrypt.Conscrypt
 import timber.log.Timber
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.InjektScope
 import uy.kohesive.injekt.injectLazy
 import uy.kohesive.injekt.registry.default.DefaultRegistrar
+import java.security.Security

@AcraCore(
    buildConfigClass = BuildConfig::class,
@ -36,6 +39,20 @@ open class App : Application(), LifecycleObserver {
        super.onCreate()
        if (BuildConfig.DEBUG) Timber.plant(Timber.DebugTree())

+        // Debug tool; see https://fbflipper.com/
+        // SoLoader.init(this, false)
+        // if (BuildConfig.DEBUG && FlipperUtils.shouldEnableFlipper(this)) {
+        //     val client = AndroidFlipperClient.getInstance(this)
+        //     client.addPlugin(InspectorFlipperPlugin(this, DescriptorMapping.withDefaults()))
+        //     client.addPlugin(DatabasesFlipperPlugin(this))
+        //     client.start()
+        // }
+
+        // TLS 1.3 support for Android < 10
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) {
+            Security.insertProviderAt(Conscrypt.newProvider(), 1)
+        }
+
        Injekt = InjektScope(DefaultRegistrar())
        Injekt.importModule(AppModule(this))

--- a/app/src/main/java/eu/kanade/tachiyomi/AppModule.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/AppModule.kt
@ -13,6 +13,7 @@ import eu.kanade.tachiyomi.network.NetworkHelper
 import eu.kanade.tachiyomi.source.SourceManager
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
+import kotlinx.serialization.json.Json
 import uy.kohesive.injekt.api.InjektModule
 import uy.kohesive.injekt.api.InjektRegistrar
 import uy.kohesive.injekt.api.addSingleton
@ -44,6 +45,8 @@ class AppModule(val app: Application) : InjektModule {

        addSingletonFactory { Gson() }

+        addSingletonFactory { Json { ignoreUnknownKeys = true } }
+
        // Asynchronously init expensive components for a faster cold start

        GlobalScope.launch { get<PreferencesHelper>() }
--- a/app/src/main/java/eu/kanade/tachiyomi/Migrations.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/Migrations.kt
@ -1,10 +1,18 @@
 package eu.kanade.tachiyomi

+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.PreferenceKeys
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.data.updater.UpdaterJob
 import eu.kanade.tachiyomi.extension.ExtensionUpdateJob
+import eu.kanade.tachiyomi.ui.library.LibrarySort
+import eu.kanade.tachiyomi.widget.ExtendedNavigationView
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
 import java.io.File

 object Migrations {
@ -17,13 +25,13 @@ object Migrations {
     */
    fun upgrade(preferences: PreferencesHelper): Boolean {
        val context = preferences.context
-        val oldVersion = preferences.lastVersionCode().get()

        // Cancel app updater job for debug builds that don't include it
        if (BuildConfig.DEBUG && !BuildConfig.INCLUDE_UPDATER) {
            UpdaterJob.cancelTask(context)
        }

+        val oldVersion = preferences.lastVersionCode().get()
        if (oldVersion < BuildConfig.VERSION_CODE) {
            preferences.lastVersionCode().set(BuildConfig.VERSION_CODE)

@ -82,8 +90,38 @@ object Migrations {
                // New extension update check job
                ExtensionUpdateJob.setupTask(context)
            }
+            if (oldVersion < 44) {
+                // Reset sorting preference if using removed sort by source
+                if (preferences.librarySortingMode().get() == LibrarySort.SOURCE) {
+                    preferences.librarySortingMode().set(LibrarySort.ALPHA)
+                }
+            }
+            if (oldVersion < 52) {
+                // Migrate library filters to tri-state versions
+                val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+                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")
+                }
+
+                // Force MAL log out due to login flow change
+                val trackManager = Injekt.get<TrackManager>()
+                trackManager.myAnimeList.logout()
+            }
            return true
        }
+
        return false
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/annotations/Nsfw.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/annotations/Nsfw.kt
@ -0,0 +1,5 @@
+package eu.kanade.tachiyomi.annotations
+
+@Retention(AnnotationRetention.RUNTIME)
+@Target(AnnotationTarget.CLASS)
+annotation class Nsfw
--- 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 +1,88 @@
+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.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.util.chapter.syncChaptersWithSource
+import rx.Observable
+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()
+
+    /**
+     * [Observable] that fetches chapter information
+     *
+     * @param source source of manga
+     * @param manga manga that needs updating
+     * @param chapters list of chapters in the backup
+     * @return [Observable] that contains manga
+     */
+    internal 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 { (first) ->
+                if (first.isNotEmpty()) {
+                    chapters.forEach { it.manga_id = manga.id }
+                    updateChapters(chapters)
+                }
+            }
+    }
+
+    /**
+     * 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()
+    }
+
+    /**
+     * 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 kotlinx.coroutines.Job
+import rx.Observable
+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 fun performRestore(uri: Uri): Boolean
+
+    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
+    }
+
+    /**
+     * [Observable] that fetches chapter information
+     *
+     * @param source source of manga
+     * @param manga manga that needs updating
+     * @return [Observable] that contains manga
+     */
+    internal 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 {
+                val errorMessage = if (it is NoChaptersException) {
+                    context.getString(R.string.no_chapters_error)
+                } else {
+                    it.message
+                }
+                errors.add(Date() to "${manga.title} - $errorMessage")
+                Pair(emptyList(), emptyList())
+            }
+    }
+
+    /**
+     * [Observable] that refreshes tracking information
+     * @param manga manga that needs updating.
+     * @param tracks list containing tracks from restore file.
+     * @return [Observable] that contains updated track item
+     */
+    internal fun trackingFetchObservable(manga: Manga, tracks: List<Track>): Observable<Track> {
+        return Observable.from(tracks)
+            .flatMap { track ->
+                val service = trackManager.getService(track.sync_id)
+                if (service != null && service.isLogged) {
+                    service.refresh(track)
+                        .doOnNext { db.insertTrack(it).executeAsBlocking() }
+                        .onErrorReturn {
+                            errors.add(Date() to "${manga.title} - ${it.message}")
+                            track
+                        }
+                } else {
+                    errors.add(Date() to "${manga.title} - ${context.getString(R.string.tracker_not_logged_in, service?.name)}")
+                    Observable.empty()
+                }
+            }
+    }
+
+    /**
+     * Called to update dialog in [BackupConst]
+     *
+     * @param progress restore progress
+     * @param amount total restoreAmount of manga
+     * @param title title of restored manga
+     */
+    internal fun showRestoreProgress(
+        progress: Int,
+        amount: Int,
+        title: String
+    ) {
+        notifier.showRestoreProgress(title, progress, amount)
+    }
+
+    internal fun writeErrorLog(): File {
+        try {
+            if (errors.isNotEmpty()) {
+                val destFile = File(context.externalCacheDir, "tachiyomi_restore.txt")
+                val sdf = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault())
+
+                destFile.bufferedWriter().use { out ->
+                    errors.forEach { (date, message) ->
+                        out.write("[${sdf.format(date)}] $message\n")
+                    }
+                }
+                return destFile
+            }
+        } catch (e: Exception) {
+            // Empty
+        }
+        return File("")
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupRestoreValidator.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupRestoreValidator.kt
@ -0,0 +1,16 @@
+package eu.kanade.tachiyomi.data.backup
+
+import android.content.Context
+import android.net.Uri
+import eu.kanade.tachiyomi.data.track.TrackManager
+import eu.kanade.tachiyomi.source.SourceManager
+import uy.kohesive.injekt.injectLazy
+
+abstract class AbstractBackupRestoreValidator {
+    protected val sourceManager: SourceManager by injectLazy()
+    protected val trackManager: TrackManager by injectLazy()
+
+    abstract fun validate(context: Context, uri: Uri): Results
+
+    data class Results(val missingSources: List<String>, val missingTrackers: List<String>)
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupConst.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupConst.kt
@ -7,4 +7,9 @@ object BackupConst {
    private const val NAME = "BackupRestoreServices"
    const val EXTRA_URI = "$ID.$NAME.EXTRA_URI"
    const val EXTRA_FLAGS = "$ID.$NAME.EXTRA_FLAGS"
+    const val EXTRA_MODE = "$ID.$NAME.EXTRA_MODE"
+    const val EXTRA_TYPE = "$ID.$NAME.EXTRA_TYPE"
+
+    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
@ -4,11 +4,15 @@ import android.app.Service
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
-import android.os.Build
 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.full.FullBackupManager
+import eu.kanade.tachiyomi.data.backup.legacy.LegacyBackupManager
 import eu.kanade.tachiyomi.data.notification.Notifications
+import eu.kanade.tachiyomi.util.system.acquireWakeLock
 import eu.kanade.tachiyomi.util.system.isServiceRunning

 /**
@ -44,17 +48,14 @@ class BackupCreateService : Service() {
         * @param uri path of Uri
         * @param flags determines what to backup
         */
-        fun start(context: Context, uri: Uri, flags: Int) {
+        fun start(context: Context, uri: Uri, flags: Int, type: Int) {
            if (!isRunning(context)) {
                val intent = Intent(context, BackupCreateService::class.java).apply {
                    putExtra(BackupConst.EXTRA_URI, uri)
                    putExtra(BackupConst.EXTRA_FLAGS, flags)
+                    putExtra(BackupConst.EXTRA_TYPE, type)
                }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    context.startService(intent)
-                } else {
-                    context.startForegroundService(intent)
-                }
+                ContextCompat.startForegroundService(context, intent)
            }
        }
    }
@ -64,19 +65,15 @@ class BackupCreateService : Service() {
     */
    private lateinit var wakeLock: PowerManager.WakeLock

-    private lateinit var backupManager: BackupManager
    private lateinit var notifier: BackupNotifier

    override fun onCreate() {
        super.onCreate()
+
        notifier = BackupNotifier(this)
+        wakeLock = acquireWakeLock(javaClass.name)

        startForeground(Notifications.ID_BACKUP_PROGRESS, notifier.showBackupProgress().build())
-
-        wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).newWakeLock(
-            PowerManager.PARTIAL_WAKE_LOCK, "${javaClass.name}:WakeLock"
-        )
-        wakeLock.acquire()
    }

    override fun stopService(name: Intent?): Boolean {
@ -106,9 +103,13 @@ class BackupCreateService : Service() {
        try {
            val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)
            val backupFlags = intent.getIntExtra(BackupConst.EXTRA_FLAGS, 0)
-            backupManager = BackupManager(this)
+            val backupType = intent.getIntExtra(BackupConst.EXTRA_TYPE, BackupConst.BACKUP_TYPE_LEGACY)
+            val backupManager = when (backupType) {
+                BackupConst.BACKUP_TYPE_FULL -> FullBackupManager(this)
+                else -> LegacyBackupManager(this)
+            }

-            val backupFileUri = Uri.parse(backupManager.createBackup(uri, backupFlags, false))
+            val backupFileUri = backupManager.createBackup(uri, backupFlags, false)?.toUri()
            val unifile = UniFile.fromUri(this, backupFileUri)
            notifier.showBackupComplete(unifile)
        } catch (e: Exception) {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreatorJob.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupCreatorJob.kt
@ -1,27 +1,31 @@
 package eu.kanade.tachiyomi.data.backup

 import android.content.Context
-import android.net.Uri
+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.backup.legacy.LegacyBackupManager
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
-import java.util.concurrent.TimeUnit
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
+import java.util.concurrent.TimeUnit

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

    override fun doWork(): Result {
        val preferences = Injekt.get<PreferencesHelper>()
-        val backupManager = BackupManager(context)
-        val uri = Uri.parse(preferences.backupsDirectory().get())
+        val uri = preferences.backupsDirectory().get().toUri()
        val flags = BackupCreateService.BACKUP_ALL
        return try {
-            backupManager.createBackup(uri, flags, true)
+            FullBackupManager(context).createBackup(uri, flags, true)
+            if (preferences.createLegacyBackup().get()) {
+                LegacyBackupManager(context).createBackup(uri, flags, true)
+            }
            Result.success()
        } catch (e: Exception) {
            Result.failure()
@ -36,8 +40,10 @@ class BackupCreatorJob(private val context: Context, workerParams: WorkerParamet
            val interval = prefInterval ?: preferences.backupInterval().get()
            if (interval > 0) {
                val request = PeriodicWorkRequestBuilder<BackupCreatorJob>(
-                    interval.toLong(), TimeUnit.HOURS,
-                    10, TimeUnit.MINUTES
+                    interval.toLong(),
+                    TimeUnit.HOURS,
+                    10,
+                    TimeUnit.MINUTES
                )
                    .addTag(TAG)
                    .build()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupNotifier.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupNotifier.kt
@ -11,11 +11,11 @@ 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
-import uy.kohesive.injekt.injectLazy

-internal class BackupNotifier(private val context: Context) {
+class BackupNotifier(private val context: Context) {

    private val preferences: PreferencesHelper by injectLazy()

@ -41,6 +41,7 @@ internal class BackupNotifier(private val context: Context) {
            setContentTitle(context.getString(R.string.creating_backup))

            setProgress(0, 0, true)
+            setOnlyAlertOnce(true)
        }

        builder.show(Notifications.ID_BACKUP_PROGRESS)
@ -64,10 +65,7 @@ internal class BackupNotifier(private val context: Context) {

        with(completeNotificationBuilder) {
            setContentTitle(context.getString(R.string.backup_created))
-
-            if (unifile.filePath != null) {
-                setContentText(unifile.filePath)
-            }
+            setContentText(unifile.filePath ?: unifile.name)

            // Clear old actions if they exist
            if (mActions.isNotEmpty()) {
@ -93,6 +91,7 @@ internal class BackupNotifier(private val context: Context) {
            }

            setProgress(maxAmount, progress, false)
+            setOnlyAlertOnce(true)

            // Clear old actions if they exist
            if (mActions.isNotEmpty()) {
@ -135,7 +134,7 @@ internal class BackupNotifier(private val context: Context) {

        with(completeNotificationBuilder) {
            setContentTitle(context.getString(R.string.restore_completed))
-            setContentText(context.getString(R.string.restore_completed_content, timeString, errorCount))
+            setContentText(context.resources.getQuantityString(R.plurals.restore_completed_message, errorCount, timeString, errorCount))

            // Clear old actions if they exist
            if (mActions.isNotEmpty()) {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
@ -4,49 +4,22 @@ import android.app.Service
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
-import com.github.salomonbrys.kotson.fromJson
-import com.google.gson.JsonArray
-import com.google.gson.JsonElement
-import com.google.gson.JsonObject
-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.Chapter
-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.Track
-import eu.kanade.tachiyomi.data.database.models.TrackImpl
+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.data.track.TrackManager
-import eu.kanade.tachiyomi.source.Source
+import eu.kanade.tachiyomi.util.system.acquireWakeLock
 import eu.kanade.tachiyomi.util.system.isServiceRunning
-import java.io.File
-import java.text.SimpleDateFormat
-import java.util.Date
-import java.util.Locale
 import kotlinx.coroutines.CoroutineExceptionHandler
 import kotlinx.coroutines.GlobalScope
-import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
-import rx.Observable
 import timber.log.Timber
-import uy.kohesive.injekt.injectLazy

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

@ -67,16 +40,14 @@ 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, online: Boolean?) {
            if (!isRunning(context)) {
                val intent = Intent(context, BackupRestoreService::class.java).apply {
                    putExtra(BackupConst.EXTRA_URI, uri)
+                    putExtra(BackupConst.EXTRA_MODE, mode)
+                    online?.let { putExtra(BackupConst.EXTRA_TYPE, it) }
                }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    context.startService(intent)
-                } else {
-                    context.startForegroundService(intent)
-                }
+                ContextCompat.startForegroundService(context, intent)
            }
        }

@ -97,40 +68,16 @@ class BackupRestoreService : Service() {
     */
    private lateinit var wakeLock: PowerManager.WakeLock

-    private var job: Job? = null
-
-    /**
-     * 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>>()
-
-    private lateinit var backupManager: BackupManager
+    private var backupRestore: AbstractBackupRestore<*>? = null
    private lateinit var notifier: BackupNotifier

-    private val db: DatabaseHelper by injectLazy()
-
-    private val trackManager: TrackManager by injectLazy()
-
    override fun onCreate() {
        super.onCreate()
+
        notifier = BackupNotifier(this)
+        wakeLock = acquireWakeLock(javaClass.name)

        startForeground(Notifications.ID_RESTORE_PROGRESS, notifier.showRestoreProgress().build())
-
-        wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).newWakeLock(
-            PowerManager.PARTIAL_WAKE_LOCK, "${javaClass.name}:WakeLock"
-        )
-        wakeLock.acquire()
    }

    override fun stopService(name: Intent?): Boolean {
@ -144,7 +91,7 @@ class BackupRestoreService : Service() {
    }

    private fun destroyJob() {
-        job?.cancel()
+        backupRestore?.job?.cancel()
        if (wakeLock.isHeld) {
            wakeLock.release()
        }
@ -165,287 +112,32 @@ class BackupRestoreService : Service() {
     */
    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        val uri = intent?.getParcelableExtra<Uri>(BackupConst.EXTRA_URI) ?: return START_NOT_STICKY
+        val mode = intent.getIntExtra(BackupConst.EXTRA_MODE, BackupConst.BACKUP_TYPE_FULL)
+        val online = intent.getBooleanExtra(BackupConst.EXTRA_TYPE, true)

        // Cancel any previous job if needed.
-        job?.cancel()
+        backupRestore?.job?.cancel()
+
+        backupRestore = when (mode) {
+            BackupConst.BACKUP_TYPE_FULL -> FullBackupRestore(this, notifier, online)
+            else -> LegacyBackupRestore(this, notifier)
+        }
        val handler = CoroutineExceptionHandler { _, exception ->
            Timber.e(exception)
-            writeErrorLog()
+            backupRestore?.writeErrorLog()

            notifier.showRestoreError(exception.message)
-
            stopSelf(startId)
        }
-        job = GlobalScope.launch(handler) {
-            restoreBackup(uri)
+        backupRestore?.job = GlobalScope.launch(handler) {
+            if (backupRestore?.restoreBackup(uri) == false) {
+                notifier.showRestoreError(getString(R.string.restoring_backup_canceled))
+            }
        }
-        job?.invokeOnCompletion {
+        backupRestore?.job?.invokeOnCompletion {
            stopSelf(startId)
        }

        return START_NOT_STICKY
    }
-
-    /**
-     * Restores data from backup file.
-     *
-     * @param uri backup file to restore
-     */
-    private fun restoreBackup(uri: Uri) {
-        val startTime = System.currentTimeMillis()
-
-        val reader = JsonReader(contentResolver.openInputStream(uri)!!.bufferedReader())
-        val json = JsonParser.parseReader(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
-        restoreCategories(json.get(CATEGORIES))
-
-        // Restore individual manga
-        mangasJson.forEach {
-            restoreManga(it.asJsonObject)
-        }
-
-        val endTime = System.currentTimeMillis()
-        val time = endTime - startTime
-
-        val logFile = writeErrorLog()
-
-        notifier.showRestoreComplete(time, errors.size, logFile.parent, logFile.name)
-    }
-
-    private fun restoreCategories(categoriesJson: JsonElement) {
-        db.inTransaction {
-            backupManager.restoreCategories(categoriesJson.asJsonArray)
-
-            restoreProgress += 1
-            showRestoreProgress(restoreProgress, restoreAmount, getString(R.string.categories))
-        }
-    }
-
-    private fun restoreManga(mangaJson: JsonObject) {
-        db.inTransaction {
-            val manga = backupManager.parser.fromJson<MangaImpl>(mangaJson.get(MANGA))
-            val chapters = backupManager.parser.fromJson<List<ChapterImpl>>(
-                mangaJson.get(CHAPTERS)
-                    ?: JsonArray()
-            )
-            val categories = backupManager.parser.fromJson<List<String>>(
-                mangaJson.get(CATEGORIES)
-                    ?: JsonArray()
-            )
-            val history = backupManager.parser.fromJson<List<DHistory>>(
-                mangaJson.get(HISTORY)
-                    ?: JsonArray()
-            )
-            val tracks = backupManager.parser.fromJson<List<TrackImpl>>(
-                mangaJson.get(TRACK)
-                    ?: JsonArray()
-            )
-
-            if (job?.isActive != true) {
-                throw Exception(getString(R.string.restoring_backup_canceled))
-            }
-
-            try {
-                restoreMangaData(manga, chapters, categories, history, tracks)
-            } catch (e: Exception) {
-                errors.add(Date() to "${manga.title} - ${getString(R.string.source_not_found)}")
-            }
-
-            restoreProgress += 1
-            showRestoreProgress(restoreProgress, restoreAmount, manga.title)
-        }
-    }
-
-    /**
-     * Returns a manga restore observable
-     *
-     * @param manga manga data from json
-     * @param chapters chapters data from json
-     * @param categories categories data from json
-     * @param history history data from json
-     * @param tracks tracking data from json
-     */
-    private fun restoreMangaData(
-        manga: Manga,
-        chapters: List<Chapter>,
-        categories: List<String>,
-        history: List<DHistory>,
-        tracks: List<Track>
-    ) {
-        // Get source
-        val source = backupManager.sourceManager.getOrStub(manga.source)
-        val dbManga = backupManager.getMangaFromDatabase(manga)
-
-        if (dbManga == null) {
-            // Manga not in database
-            restoreMangaFetch(source, manga, chapters, categories, history, tracks)
-        } else { // Manga in database
-            // Copy information from manga already in database
-            backupManager.restoreMangaNoFetch(manga, dbManga)
-            // Fetch rest of manga information
-            restoreMangaNoFetch(source, manga, chapters, categories, history, tracks)
-        }
-    }
-
-    /**
-     * [Observable] that fetches manga information
-     *
-     * @param manga manga that needs updating
-     * @param chapters chapters of manga that needs updating
-     * @param categories categories that need updating
-     */
-    private fun restoreMangaFetch(
-        source: Source,
-        manga: Manga,
-        chapters: List<Chapter>,
-        categories: List<String>,
-        history: List<DHistory>,
-        tracks: List<Track>
-    ) {
-        backupManager.restoreMangaFetchObservable(source, manga)
-            .onErrorReturn {
-                errors.add(Date() to "${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)
-            }
-            .subscribe()
-    }
-
-    private fun restoreMangaNoFetch(
-        source: Source,
-        backupManga: Manga,
-        chapters: List<Chapter>,
-        categories: List<String>,
-        history: List<DHistory>,
-        tracks: List<Track>
-    ) {
-        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)
-            }
-            .subscribe()
-    }
-
-    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} - ${service?.name} not logged in")
-                    Observable.empty()
-                }
-            }
-    }
-
-    /**
-     * Called to update dialog in [BackupConst]
-     *
-     * @param progress restore progress
-     * @param amount total restoreAmount of manga
-     * @param title title of restored manga
-     */
-    private fun showRestoreProgress(
-        progress: Int,
-        amount: Int,
-        title: String
-    ) {
-        notifier.showRestoreProgress(title, progress, amount)
-    }
-
-    /**
-     * Write errors to error log
-     */
-    private fun writeErrorLog(): File {
-        try {
-            if (errors.isNotEmpty()) {
-                val destFile = File(externalCacheDir, "tachiyomi_restore.txt")
-                val sdf = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault())
-
-                destFile.bufferedWriter().use { out ->
-                    errors.forEach { (date, message) ->
-                        out.write("[${sdf.format(date)}] $message\n")
-                    }
-                }
-                return destFile
-            }
-        } catch (e: Exception) {
-            // Empty
-        }
-        return File("")
-    }
 }
--- 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 +1,412 @@
+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.source.Source
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.protobuf.ProtoBuf
+import okio.buffer
+import okio.gzip
+import okio.sink
+import rx.Observable
+import timber.log.Timber
+import kotlin.math.max
+
+@OptIn(ExperimentalSerializationApi::class)
+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(),
+                backupExtensionInfo(databaseManga)
+            )
+        }
+
+        try {
+            val file: UniFile = (
+                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) }
+            return file.uri.toString()
+        } catch (e: Exception) {
+            Timber.e(e)
+            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)
+    }
+
+    /**
+     * [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, online: Boolean): Observable<Manga> {
+        return if (online && source != null) {
+            source.fetchMangaDetails(manga)
+                .map { networkManga ->
+                    manga.copyFrom(networkManga)
+                    manga.favorite = manga.favorite
+                    manga.initialized = true
+                    manga.id = insertManga(manga)
+                    manga
+                }
+        } else {
+            Observable.just(manga)
+                .map {
+                    it.initialized = it.description != null
+                    it.id = insertManga(it)
+                    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 = mutableListOf<MangaCategory>()
+        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 = mutableListOf<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 = 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 ->
+            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
+        }
+
+        chapters.forEach { chapter ->
+            val pos = dbChapters.indexOfFirst { it.url == chapter.url }
+            if (pos != -1) {
+                val dbChapter = dbChapters[pos]
+                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
+                }
+            }
+        }
+        // Filter the chapters that couldn't be found.
+        chapters.filter { it.id != null }
+        chapters.map { it.manga_id = manga.id }
+
+        updateChapters(chapters)
+        return true
+    }
+
+    internal fun restoreChaptersForMangaOffline(manga: Manga, chapters: List<Chapter>) {
+        val dbChapters = databaseHelper.getChapters(manga).executeAsBlocking()
+
+        chapters.forEach { chapter ->
+            val pos = dbChapters.indexOfFirst { it.url == chapter.url }
+            if (pos != -1) {
+                val dbChapter = dbChapters[pos]
+                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
+                }
+            }
+        }
+        chapters.map { it.manga_id = manga.id }
+
+        updateChapters(chapters.filter { it.id != null })
+        insertChapters(chapters.filter { it.id == null })
+    }
+}
--- 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 +1,205 @@
+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.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.ExperimentalSerializationApi
+import okio.buffer
+import okio.gzip
+import okio.source
+import rx.Observable
+import java.util.Date
+
+@OptIn(ExperimentalSerializationApi::class)
+class FullBackupRestore(context: Context, notifier: BackupNotifier, private val online: Boolean) : AbstractBackupRestore<FullBackupManager>(context, notifier) {
+
+    override 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
+        sourceMapping = backup.backupSources.map { it.sourceId to it.name }.toMap()
+
+        // Restore individual manga
+        backup.backupManga.forEach {
+            if (job?.isActive != true) {
+                return false
+            }
+
+            restoreManga(it, backup.backupCategories, online)
+        }
+
+        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>, online: Boolean) {
+        val manga = backupManga.getMangaImpl()
+        val chapters = backupManga.getChaptersImpl()
+        val categories = backupManga.categories
+        val history = backupManga.history
+        val tracks = backupManga.getTrackingImpl()
+
+        try {
+            val source = backupManager.sourceManager.get(manga.source)
+            if (source != null || !online) {
+                restoreMangaData(manga, source, chapters, categories, history, tracks, backupCategories, online)
+            } else {
+                val sourceName = sourceMapping[manga.source] ?: manga.source.toString()
+                errors.add(Date() to "${manga.title} - ${context.getString(R.string.source_not_found_name, sourceName)}")
+            }
+        } catch (e: Exception) {
+            errors.add(Date() to "${manga.title} - ${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 fun restoreMangaData(
+        manga: Manga,
+        source: Source?,
+        chapters: List<Chapter>,
+        categories: List<Int>,
+        history: List<BackupHistory>,
+        tracks: List<Track>,
+        backupCategories: List<BackupCategory>,
+        online: Boolean
+    ) {
+        val dbManga = backupManager.getMangaFromDatabase(manga)
+
+        db.inTransaction {
+            if (dbManga == null) {
+                // Manga not in database
+                restoreMangaFetch(source, manga, chapters, categories, history, tracks, backupCategories, online)
+            } 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, backupCategories, online)
+            }
+        }
+    }
+
+    /**
+     * [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 restoreMangaFetch(
+        source: Source?,
+        manga: Manga,
+        chapters: List<Chapter>,
+        categories: List<Int>,
+        history: List<BackupHistory>,
+        tracks: List<Track>,
+        backupCategories: List<BackupCategory>,
+        online: Boolean
+    ) {
+        backupManager.restoreMangaFetchObservable(source, manga, online)
+            .doOnError {
+                errors.add(Date() to "${manga.title} - ${it.message}")
+            }
+            .filter { it.id != null }
+            .flatMap {
+                if (online && source != null) {
+                    chapterFetchObservable(source, it, chapters)
+                        // Convert to the manga that contains new chapters.
+                        .map { manga }
+                } else {
+                    backupManager.restoreChaptersForMangaOffline(it, chapters)
+                    Observable.just(manga)
+                }
+            }
+            .doOnNext {
+                restoreExtraForManga(it, categories, history, tracks, backupCategories)
+            }
+            .flatMap {
+                trackingFetchObservable(it, tracks)
+            }
+            .subscribe()
+    }
+
+    private fun restoreMangaNoFetch(
+        source: Source?,
+        backupManga: Manga,
+        chapters: List<Chapter>,
+        categories: List<Int>,
+        history: List<BackupHistory>,
+        tracks: List<Track>,
+        backupCategories: List<BackupCategory>,
+        online: Boolean
+    ) {
+        Observable.just(backupManga)
+            .flatMap { manga ->
+                if (online && source != null) {
+                    if (!backupManager.restoreChaptersForManga(manga, chapters)) {
+                        chapterFetchObservable(source, manga, chapters)
+                            .map { manga }
+                    } else {
+                        Observable.just(manga)
+                    }
+                } else {
+                    backupManager.restoreChaptersForMangaOffline(manga, chapters)
+                    Observable.just(manga)
+                }
+            }
+            .doOnNext {
+                restoreExtraForManga(it, categories, history, tracks, backupCategories)
+            }
+            .flatMap { manga ->
+                trackingFetchObservable(manga, tracks)
+            }
+            .subscribe()
+    }
+
+    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 +1,49 @@
+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.full.models.BackupSerializer
+import kotlinx.serialization.ExperimentalSerializationApi
+import okio.buffer
+import okio.gzip
+import okio.source
+
+@OptIn(ExperimentalSerializationApi::class)
+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 backupString = context.contentResolver.openInputStream(uri)!!.source().gzip().buffer().use { it.readByteArray() }
+        val backup = backupManager.parser.decodeFromByteArray(BackupSerializer, backupString)
+
+        if (backup.backupManga.isEmpty()) {
+            throw Exception(context.getString(R.string.invalid_backup_file_missing_manga))
+        }
+
+        val sources = backup.backupSources.map { it.sourceId to it.name }.toMap()
+        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 { it.name }
+            .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 +1,12 @@
+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 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 +1,10 @@
+package eu.kanade.tachiyomi.data.backup.full.models
+
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.protobuf.ProtoNumber
+
+@Serializable
+data class BackupHistory(
+    @ProtoNumber(0) var url: String,
+    @ProtoNumber(1) 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 +1,87 @@
+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,
+    // @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 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 = 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.viewer,
+                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 +1,20 @@
+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 BackupSource(
+    @ProtoNumber(0) var name: String = "",
+    @ProtoNumber(1) 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 +1,65 @@
+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
+            // convert from float to int because of 1.x types
+            last_chapter_read = this@BackupTracking.lastChapterRead.toInt()
+            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,
+                // convert to float for 1.x
+                lastChapterRead = track.last_chapter_read.toFloat(),
+                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
@ -1,4 +1,4 @@
-package eu.kanade.tachiyomi.data.backup
+package eu.kanade.tachiyomi.data.backup.legacy

 import android.content.Context
 import android.net.Uri
@ -12,6 +12,7 @@ import com.google.gson.JsonArray
 import com.google.gson.JsonElement
 import com.google.gson.JsonObject
 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
@ -20,20 +21,20 @@ import eu.kanade.tachiyomi.data.backup.BackupCreateService.Companion.BACKUP_HIST
 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
-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.CategoryTypeAdapter
-import eu.kanade.tachiyomi.data.backup.serializer.ChapterTypeAdapter
-import eu.kanade.tachiyomi.data.backup.serializer.HistoryTypeAdapter
-import eu.kanade.tachiyomi.data.backup.serializer.MangaTypeAdapter
-import eu.kanade.tachiyomi.data.backup.serializer.TrackTypeAdapter
-import eu.kanade.tachiyomi.data.database.DatabaseHelper
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup.CATEGORIES
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup.CHAPTERS
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup.CURRENT_VERSION
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup.EXTENSIONS
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup.HISTORY
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup.MANGA
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup.TRACK
+import eu.kanade.tachiyomi.data.backup.legacy.models.DHistory
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.CategoryTypeAdapter
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.ChapterTypeAdapter
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.HistoryTypeAdapter
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.MangaTypeAdapter
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.TrackTypeAdapter
 import eu.kanade.tachiyomi.data.database.models.CategoryImpl
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.ChapterImpl
@ -43,32 +44,17 @@ import eu.kanade.tachiyomi.data.database.models.MangaCategory
 import eu.kanade.tachiyomi.data.database.models.MangaImpl
 import eu.kanade.tachiyomi.data.database.models.Track
 import eu.kanade.tachiyomi.data.database.models.TrackImpl
-import eu.kanade.tachiyomi.data.preference.PreferencesHelper
-import eu.kanade.tachiyomi.data.track.TrackManager
+import eu.kanade.tachiyomi.source.LocalSource
 import eu.kanade.tachiyomi.source.Source
-import eu.kanade.tachiyomi.source.SourceManager
-import eu.kanade.tachiyomi.util.chapter.syncChaptersWithSource
-import kotlin.math.max
 import rx.Observable
 import timber.log.Timber
-import uy.kohesive.injekt.injectLazy
+import kotlin.math.max

-class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
+class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : AbstractBackupManager(context) {

-    internal val databaseHelper: DatabaseHelper by injectLazy()
-    internal val sourceManager: SourceManager by injectLazy()
-    internal val trackManager: TrackManager by injectLazy()
-    private val preferences: PreferencesHelper by injectLazy()
-
-    /**
-     * Version of parser
-     */
-    var version: Int = version
+    var parserVersion: Int = version
        private set

-    /**
-     * Json Parser
-     */
    var parser: Gson = initParser()

    /**
@ -77,12 +63,11 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
     * @param version version of parser
     */
    internal fun setVersion(version: Int) {
-        this.version = version
+        this.parserVersion = version
        parser = initParser()
    }

-    private fun initParser(): Gson = when (version) {
-        1 -> GsonBuilder().create()
+    private fun initParser(): Gson = when (parserVersion) {
        2 ->
            GsonBuilder()
                .registerTypeAdapter<MangaImpl>(MangaTypeAdapter.build())
@ -91,7 +76,7 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
                .registerTypeAdapter<DHistory>(HistoryTypeAdapter.build())
                .registerTypeHierarchyAdapter<TrackImpl>(TrackTypeAdapter.build())
                .create()
-        else -> throw Exception("Json version unknown")
+        else -> throw Exception("Unknown backup version")
    }

    /**
@ -100,7 +85,7 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
     * @param uri path of Uri
     * @param isJob backup called from job
     */
-    fun createBackup(uri: Uri, flags: Int, isJob: Boolean): String? {
+    override fun createBackup(uri: Uri, flags: Int, isJob: Boolean): String? {
        // Create root object
        val root = JsonObject()

@ -110,66 +95,81 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
        // Create category array
        val categoryEntries = JsonArray()

+        // Create extension ID/name mapping
+        val extensionEntries = JsonArray()
+
        // Add value's to root
        root[Backup.VERSION] = CURRENT_VERSION
        root[Backup.MANGAS] = mangaEntries
        root[CATEGORIES] = categoryEntries
+        root[EXTENSIONS] = extensionEntries

        databaseHelper.inTransaction {
-            // Get manga from database
            val mangas = getFavoriteManga()

+            val extensions: MutableSet<String> = mutableSetOf()
+
            // Backup library manga and its dependencies
            mangas.forEach { manga ->
                mangaEntries.add(backupMangaObject(manga, flags))
+
+                // Maintain set of extensions/sources used (excludes local source)
+                if (manga.source != LocalSource.ID) {
+                    sourceManager.get(manga.source)?.let {
+                        extensions.add("${manga.source}:${it.name}")
+                    }
+                }
            }

            // Backup categories
            if ((flags and BACKUP_CATEGORY_MASK) == BACKUP_CATEGORY) {
                backupCategories(categoryEntries)
            }
+
+            // Backup extension ID/name mapping
+            backupExtensionInfo(extensionEntries, extensions)
        }

        try {
-            // When BackupCreatorJob
-            if (isJob) {
-                // Get dir of file and create
-                var dir = UniFile.fromUri(context, uri)
-                dir = dir.createDirectory("automatic")
+            val file: UniFile = (
+                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+.json""")
-                dir.listFiles { _, filename -> backupRegex.matches(filename) }
-                    .orEmpty()
-                    .sortedByDescending { it.name }
-                    .drop(numberOfBackups - 1)
-                    .forEach { it.delete() }
+                    // Delete older backups
+                    val numberOfBackups = 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 {
-                    parser.toJson(root, it)
+                    // Create new file to place backup
+                    dir.createFile(Backup.getDefaultFilename())
+                } else {
+                    UniFile.fromUri(context, uri)
                }
+                )
+                ?: throw Exception("Couldn't create backup file")

-                return newFile.uri.toString()
-            } else {
-                val file = UniFile.fromUri(context, uri)
-                    ?: throw Exception("Couldn't create backup file")
-                file.openOutputStream().bufferedWriter().use {
-                    parser.toJson(root, it)
-                }
-
-                return file.uri.toString()
+            file.openOutputStream().bufferedWriter().use {
+                parser.toJson(root, it)
            }
+            return file.uri.toString()
        } catch (e: Exception) {
            Timber.e(e)
            throw e
        }
    }

+    private fun backupExtensionInfo(root: JsonArray, extensions: Set<String>) {
+        extensions.sorted().forEach {
+            root.add(it)
+        }
+    }
+
    /**
     * Backup the categories of library
     *
@ -266,24 +266,6 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
            }
    }

-    /**
-     * [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 { pair ->
-                if (pair.first.isNotEmpty()) {
-                    chapters.forEach { it.manga_id = manga.id }
-                    insertChapters(chapters)
-                }
-            }
-    }
-
    /**
     * Restore the categories from Json
     *
@ -301,7 +283,7 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
            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) {
+                if (category.name == dbCategory.name) {
                    category.id = dbCategory.id
                    found = true
                    break
@ -326,10 +308,10 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
     */
    internal fun restoreCategoriesForManga(manga: Manga, categories: List<String>) {
        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
-        val mangaCategoriesToUpdate = ArrayList<MangaCategory>()
+        val mangaCategoriesToUpdate = mutableListOf<MangaCategory>()
        for (backupCategoryStr in categories) {
            for (dbCategory in dbCategories) {
-                if (backupCategoryStr.toLowerCase() == dbCategory.nameLower) {
+                if (backupCategoryStr == dbCategory.name) {
                    mangaCategoriesToUpdate.add(MangaCategory.create(manga, dbCategory))
                    break
                }
@ -338,9 +320,7 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {

        // Update database
        if (mangaCategoriesToUpdate.isNotEmpty()) {
-            val mangaAsList = ArrayList<Manga>()
-            mangaAsList.add(manga)
-            databaseHelper.deleteOldMangasCategories(mangaAsList).executeAsBlocking()
+            databaseHelper.deleteOldMangasCategories(listOf(manga)).executeAsBlocking()
            databaseHelper.insertMangasCategories(mangaCategoriesToUpdate).executeAsBlocking()
        }
    }
@ -352,7 +332,7 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
     */
    internal fun restoreHistoryForManga(history: List<DHistory>) {
        // List containing history to be updated
-        val historyToBeUpdated = ArrayList<History>()
+        val historyToBeUpdated = mutableListOf<History>()
        for ((url, lastRead) in history) {
            val dbHistory = databaseHelper.getHistoryByChapterUrl(url).executeAsBlocking()
            // Check if history already in database and update
@ -386,9 +366,9 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {

        // Get tracks from database
        val dbTracks = databaseHelper.getTracks(manga).executeAsBlocking()
-        val trackToUpdate = ArrayList<Track>()
+        val trackToUpdate = mutableListOf<Track>()

-        for (track in tracks) {
+        tracks.forEach { track ->
            val service = trackManager.getService(track.sync_id)
            if (service != null && service.isLogged) {
                var isInDatabase = false
@ -448,45 +428,7 @@ class BackupManager(val context: Context, version: Int = CURRENT_VERSION) {
        chapters.filter { it.id != null }
        chapters.map { it.manga_id = manga.id }

-        insertChapters(chapters)
+        updateChapters(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().get()
 }
--- 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 +1,209 @@
+package eu.kanade.tachiyomi.data.backup.legacy
+
+import android.content.Context
+import android.net.Uri
+import com.github.salomonbrys.kotson.fromJson
+import com.google.gson.JsonArray
+import com.google.gson.JsonElement
+import com.google.gson.JsonObject
+import com.google.gson.JsonParser
+import com.google.gson.stream.JsonReader
+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.Backup.MANGAS
+import eu.kanade.tachiyomi.data.backup.legacy.models.DHistory
+import eu.kanade.tachiyomi.data.database.models.Chapter
+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.Track
+import eu.kanade.tachiyomi.data.database.models.TrackImpl
+import eu.kanade.tachiyomi.source.Source
+import rx.Observable
+import java.util.Date
+
+class LegacyBackupRestore(context: Context, notifier: BackupNotifier) : AbstractBackupRestore<LegacyBackupManager>(context, notifier) {
+
+    override fun performRestore(uri: Uri): Boolean {
+        val reader = JsonReader(context.contentResolver.openInputStream(uri)!!.bufferedReader())
+        val json = JsonParser.parseReader(reader).asJsonObject
+
+        val version = json.get(Backup.VERSION)?.asInt ?: 1
+        backupManager = LegacyBackupManager(context, version)
+
+        val mangasJson = json.get(MANGAS).asJsonArray
+        restoreAmount = mangasJson.size() + 1 // +1 for categories
+
+        // Restore categories
+        json.get(Backup.CATEGORIES)?.let { restoreCategories(it) }
+
+        // Store source mapping for error messages
+        sourceMapping = LegacyBackupRestoreValidator.getSourceMapping(json)
+
+        // Restore individual manga
+        mangasJson.forEach {
+            if (job?.isActive != true) {
+                return false
+            }
+
+            restoreManga(it.asJsonObject)
+        }
+
+        return true
+    }
+
+    private fun restoreCategories(categoriesJson: JsonElement) {
+        db.inTransaction {
+            backupManager.restoreCategories(categoriesJson.asJsonArray)
+        }
+
+        restoreProgress += 1
+        showRestoreProgress(restoreProgress, restoreAmount, context.getString(R.string.categories))
+    }
+
+    private fun restoreManga(mangaJson: JsonObject) {
+        val manga = backupManager.parser.fromJson<MangaImpl>(
+            mangaJson.get(
+                Backup.MANGA
+            )
+        )
+        val chapters = backupManager.parser.fromJson<List<ChapterImpl>>(
+            mangaJson.get(Backup.CHAPTERS)
+                ?: JsonArray()
+        )
+        val categories = backupManager.parser.fromJson<List<String>>(
+            mangaJson.get(Backup.CATEGORIES)
+                ?: JsonArray()
+        )
+        val history = backupManager.parser.fromJson<List<DHistory>>(
+            mangaJson.get(Backup.HISTORY)
+                ?: JsonArray()
+        )
+        val tracks = backupManager.parser.fromJson<List<TrackImpl>>(
+            mangaJson.get(Backup.TRACK)
+                ?: JsonArray()
+        )
+
+        try {
+            val source = backupManager.sourceManager.get(manga.source)
+            if (source != null) {
+                restoreMangaData(manga, source, chapters, categories, history, tracks)
+            } else {
+                val sourceName = sourceMapping[manga.source] ?: manga.source.toString()
+                errors.add(Date() to "${manga.title} - ${context.getString(R.string.source_not_found_name, sourceName)}")
+            }
+        } catch (e: Exception) {
+            errors.add(Date() to "${manga.title} - ${e.message}")
+        }
+
+        restoreProgress += 1
+        showRestoreProgress(restoreProgress, restoreAmount, manga.title)
+    }
+
+    /**
+     * Returns a manga restore observable
+     *
+     * @param manga manga data from json
+     * @param source source to get manga data from
+     * @param chapters chapters data from json
+     * @param categories categories data from json
+     * @param history history data from json
+     * @param tracks tracking data from json
+     */
+    private fun restoreMangaData(
+        manga: Manga,
+        source: Source,
+        chapters: List<Chapter>,
+        categories: List<String>,
+        history: List<DHistory>,
+        tracks: List<Track>
+    ) {
+        val dbManga = backupManager.getMangaFromDatabase(manga)
+
+        db.inTransaction {
+            if (dbManga == null) {
+                // Manga not in database
+                restoreMangaFetch(source, manga, chapters, categories, history, tracks)
+            } else { // Manga in database
+                // Copy information from manga already in database
+                backupManager.restoreMangaNoFetch(manga, dbManga)
+                // Fetch rest of manga information
+                restoreMangaNoFetch(source, manga, chapters, categories, history, tracks)
+            }
+        }
+    }
+
+    /**
+     * [Observable] that fetches manga information
+     *
+     * @param manga manga that needs updating
+     * @param chapters chapters of manga that needs updating
+     * @param categories categories that need updating
+     */
+    private fun restoreMangaFetch(
+        source: Source,
+        manga: Manga,
+        chapters: List<Chapter>,
+        categories: List<String>,
+        history: List<DHistory>,
+        tracks: List<Track>
+    ) {
+        backupManager.restoreMangaFetchObservable(source, manga)
+            .onErrorReturn {
+                errors.add(Date() to "${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)
+            }
+            .subscribe()
+    }
+
+    private fun restoreMangaNoFetch(
+        source: Source,
+        backupManga: Manga,
+        chapters: List<Chapter>,
+        categories: List<String>,
+        history: List<DHistory>,
+        tracks: List<Track>
+    ) {
+        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)
+            }
+            .subscribe()
+    }
+
+    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 com.google.gson.JsonObject
+import com.google.gson.JsonParser
+import com.google.gson.stream.JsonReader
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.backup.AbstractBackupRestoreValidator
+import eu.kanade.tachiyomi.data.backup.legacy.models.Backup
+
+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 reader = JsonReader(context.contentResolver.openInputStream(uri)!!.bufferedReader())
+        val json = JsonParser.parseReader(reader).asJsonObject
+
+        val version = json.get(Backup.VERSION)
+        val mangasJson = json.get(Backup.MANGAS)
+        if (version == null || mangasJson == null) {
+            throw Exception(context.getString(R.string.invalid_backup_file_missing_data))
+        }
+
+        val mangas = mangasJson.asJsonArray
+        if (mangas.size() == 0) {
+            throw Exception(context.getString(R.string.invalid_backup_file_missing_manga))
+        }
+
+        val sources = getSourceMapping(json)
+        val missingSources = sources
+            .filter { sourceManager.get(it.key) == null }
+            .values
+            .sorted()
+
+        val trackers = mangas
+            .filter { it.asJsonObject.has("track") }
+            .flatMap { it.asJsonObject["track"].asJsonArray }
+            .map { it.asJsonObject["s"].asInt }
+            .distinct()
+        val missingTrackers = trackers
+            .mapNotNull { trackManager.getService(it) }
+            .filter { !it.isLogged }
+            .map { it.name }
+            .sorted()
+
+        return Results(missingSources, missingTrackers)
+    }
+
+    companion object {
+        fun getSourceMapping(json: JsonObject): Map<Long, String> {
+            val extensionsMapping = json.get(Backup.EXTENSIONS) ?: return emptyMap()
+
+            return extensionsMapping.asJsonArray
+                .map {
+                    val items = it.asString.split(":")
+                    items[0].toLong() to items[1]
+                }
+                .toMap()
+        }
+    }
+}
--- 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
@ -1,4 +1,4 @@
-package eu.kanade.tachiyomi.data.backup.models
+package eu.kanade.tachiyomi.data.backup.legacy.models

 import java.text.SimpleDateFormat
 import java.util.Date
@ -14,6 +14,7 @@ object Backup {
    const val TRACK = "track"
    const val CHAPTERS = "chapters"
    const val CATEGORIES = "categories"
+    const val EXTENSIONS = "extensions"
    const val HISTORY = "history"
    const val VERSION = "version"

--- 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
@ -1,3 +1,3 @@
-package eu.kanade.tachiyomi.data.backup.models
+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/CategoryTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/CategoryTypeAdapter.kt
@ -1,4 +1,4 @@
-package eu.kanade.tachiyomi.data.backup.serializer
+package eu.kanade.tachiyomi.data.backup.legacy.serializer

 import com.github.salomonbrys.kotson.typeAdapter
 import com.google.gson.TypeAdapter
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/ChapterTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/ChapterTypeAdapter.kt
@ -1,4 +1,4 @@
-package eu.kanade.tachiyomi.data.backup.serializer
+package eu.kanade.tachiyomi.data.backup.legacy.serializer

 import com.github.salomonbrys.kotson.typeAdapter
 import com.google.gson.TypeAdapter
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/HistoryTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/HistoryTypeAdapter.kt
@ -1,8 +1,8 @@
-package eu.kanade.tachiyomi.data.backup.serializer
+package eu.kanade.tachiyomi.data.backup.legacy.serializer

 import com.github.salomonbrys.kotson.typeAdapter
 import com.google.gson.TypeAdapter
-import eu.kanade.tachiyomi.data.backup.models.DHistory
+import eu.kanade.tachiyomi.data.backup.legacy.models.DHistory

 /**
 * JSON Serializer used to write / read [DHistory] to / from json
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/MangaTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/MangaTypeAdapter.kt
@ -1,4 +1,4 @@
-package eu.kanade.tachiyomi.data.backup.serializer
+package eu.kanade.tachiyomi.data.backup.legacy.serializer

 import com.github.salomonbrys.kotson.typeAdapter
 import com.google.gson.TypeAdapter
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/TrackTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/TrackTypeAdapter.kt
@ -1,4 +1,4 @@
-package eu.kanade.tachiyomi.data.backup.serializer
+package eu.kanade.tachiyomi.data.backup.legacy.serializer

 import com.github.salomonbrys.kotson.typeAdapter
 import com.google.gson.TypeAdapter
--- a/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
@ -9,13 +9,13 @@ import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.source.model.Page
 import eu.kanade.tachiyomi.util.storage.DiskUtil
 import eu.kanade.tachiyomi.util.storage.saveTo
-import java.io.File
-import java.io.IOException
 import okhttp3.Response
 import okio.buffer
 import okio.sink
 import rx.Observable
 import uy.kohesive.injekt.injectLazy
+import java.io.File
+import java.io.IOException

 /**
 * Class used to create chapter cache
--- a/app/src/main/java/eu/kanade/tachiyomi/data/cache/CoverCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/cache/CoverCache.kt
@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.data.cache

 import android.content.Context
+import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.util.storage.DiskUtil
 import java.io.File
 import java.io.IOException
@ -17,51 +18,89 @@ 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 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
+
+        getCoverFile(manga)?.let {
+            if (it.exists() && it.delete()) ++deleted
        }

-        // Remove file.
-        val file = getCoverFile(thumbnailUrl)
-        return file.exists() && file.delete()
+        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()
+        }
+    }
+
+    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/database/DbOpenCallback.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/DbOpenCallback.kt
@ -20,7 +20,7 @@ class DbOpenCallback : SupportSQLiteOpenHelper.Callback(DATABASE_VERSION) {
        /**
         * Version of the database.
         */
-        const val DATABASE_VERSION = 9
+        const val DATABASE_VERSION = 11
    }

    override fun onCreate(db: SupportSQLiteDatabase) = with(db) {
@ -75,6 +75,13 @@ class DbOpenCallback : SupportSQLiteOpenHelper.Callback(DATABASE_VERSION) {
            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)
+        }
    }

    override fun onConfigure(db: SupportSQLiteDatabase) {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/MangaTypeMapping.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/MangaTypeMapping.kt
@ -14,6 +14,8 @@ import eu.kanade.tachiyomi.data.database.models.MangaImpl
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_ARTIST
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_AUTHOR
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_CHAPTER_FLAGS
+import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_COVER_LAST_MODIFIED
+import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_DATE_ADDED
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_DESCRIPTION
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_FAVORITE
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_GENRE
@ -46,7 +48,7 @@ class MangaPutResolver : DefaultPutResolver<Manga>() {
        .whereArgs(obj.id)
        .build()

-    override fun mapToContentValues(obj: Manga) = ContentValues(15).apply {
+    override fun mapToContentValues(obj: Manga) = ContentValues(17).apply {
        put(COL_ID, obj.id)
        put(COL_SOURCE, obj.source)
        put(COL_URL, obj.url)
@ -62,6 +64,8 @@ class MangaPutResolver : DefaultPutResolver<Manga>() {
        put(COL_INITIALIZED, obj.initialized)
        put(COL_VIEWER, obj.viewer)
        put(COL_CHAPTER_FLAGS, obj.chapter_flags)
+        put(COL_COVER_LAST_MODIFIED, obj.cover_last_modified)
+        put(COL_DATE_ADDED, obj.date_added)
    }
 }

@ -82,6 +86,8 @@ interface BaseMangaGetResolver {
        initialized = cursor.getInt(cursor.getColumnIndex(COL_INITIALIZED)) == 1
        viewer = cursor.getInt(cursor.getColumnIndex(COL_VIEWER))
        chapter_flags = cursor.getInt(cursor.getColumnIndex(COL_CHAPTER_FLAGS))
+        cover_last_modified = cursor.getLong(cursor.getColumnIndex(COL_COVER_LAST_MODIFIED))
+        date_added = cursor.getLong(cursor.getColumnIndex(COL_DATE_ADDED))
    }
 }

--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/Category.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/Category.kt
@ -12,9 +12,6 @@ interface Category : Serializable {

    var flags: Int

-    val nameLower: String
-        get() = name.toLowerCase()
-
    companion object {

        fun create(name: String): Category = CategoryImpl().apply {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/CategoryImpl.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/CategoryImpl.kt
@ -15,7 +15,6 @@ class CategoryImpl : Category {
        if (other == null || javaClass != other.javaClass) return false

        val category = other as Category
-
        return name == category.name
    }

--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/ChapterImpl.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/ChapterImpl.kt
@ -31,10 +31,11 @@ class ChapterImpl : Chapter {
        if (other == null || javaClass != other.javaClass) return false

        val chapter = other as Chapter
-        return url == chapter.url
+        if (url != chapter.url) return false
+        return id == chapter.id
    }

    override fun hashCode(): Int {
-        return url.hashCode()
+        return url.hashCode() + id.hashCode()
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/Manga.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/Manga.kt
@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.data.database.models

 import eu.kanade.tachiyomi.source.model.SManga
+import tachiyomi.source.model.MangaInfo

 interface Manga : SManga {

@ -12,18 +13,18 @@ interface Manga : SManga {

    var last_update: Long

+    var date_added: Long
+
    var viewer: Int

    var chapter_flags: Int

+    var cover_last_modified: Long
+
    fun setChapterOrder(order: Int) {
        setFlags(order, SORT_MASK)
    }

-    private fun setFlags(flag: Int, mask: Int) {
-        chapter_flags = chapter_flags and mask.inv() or (flag and mask)
-    }
-
    fun sortDescending(): Boolean {
        return chapter_flags and SORT_MASK == SORT_DESC
    }
@ -32,6 +33,10 @@ interface Manga : SManga {
        return genre?.split(", ")?.map { it.trim() }
    }

+    private fun setFlags(flag: Int, mask: Int) {
+        chapter_flags = chapter_flags and mask.inv() or (flag and mask)
+    }
+
    // Used to display the chapter's title one way or another
    var displayMode: Int
        get() = chapter_flags and DISPLAY_MASK
@ -76,7 +81,8 @@ interface Manga : SManga {

        const val SORTING_SOURCE = 0x00000000
        const val SORTING_NUMBER = 0x00000100
-        const val SORTING_MASK = 0x00000100
+        const val SORTING_UPLOAD_DATE = 0x00000200
+        const val SORTING_MASK = 0x00000300

        const val DISPLAY_NAME = 0x00000000
        const val DISPLAY_NUMBER = 0x00100000
@ -93,3 +99,16 @@ interface Manga : SManga {
        }
    }
 }
+
+fun Manga.toMangaInfo(): MangaInfo {
+    return MangaInfo(
+        artist = this.artist ?: "",
+        author = this.author ?: "",
+        cover = this.thumbnail_url ?: "",
+        description = this.description ?: "",
+        genres = this.getGenres() ?: emptyList(),
+        key = this.url,
+        status = this.status,
+        title = this.title
+    )
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/models/MangaImpl.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/models/MangaImpl.kt
@ -26,22 +26,26 @@ open class MangaImpl : Manga {

    override var last_update: Long = 0

+    override var date_added: Long = 0
+
    override var initialized: Boolean = false

    override var viewer: Int = 0

    override var chapter_flags: Int = 0

+    override var cover_last_modified: Long = 0
+
    override fun equals(other: Any?): Boolean {
        if (this === other) return true
        if (other == null || javaClass != other.javaClass) return false

        val manga = other as Manga
-
-        return url == manga.url
+        if (url != manga.url) return false
+        return id == manga.id
    }

    override fun hashCode(): Int {
-        return url.hashCode()
+        return url.hashCode() + id.hashCode()
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/HistoryQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/HistoryQueries.kt
@ -21,13 +21,16 @@ interface HistoryQueries : DbProvider {
    /**
     * Returns history of recent manga containing last read chapter
     * @param date recent date range
+     * @param limit the limit of manga to grab
+     * @param offset offset the db by
+     * @param search what to search in the db history
     */
-    fun getRecentManga(date: Date) = db.get()
+    fun getRecentManga(date: Date, limit: Int = 25, offset: Int = 0, search: String = "") = db.get()
        .listOfObjects(MangaChapterHistory::class.java)
        .withQuery(
            RawQuery.builder()
-                .query(getRecentMangasQuery())
-                .args(date.time)
+                .query(getRecentMangasQuery(search))
+                .args(date.time, limit, offset)
                .observesTables(HistoryTable.TABLE)
                .build()
        )
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/MangaQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/MangaQueries.kt
@ -7,6 +7,7 @@ import eu.kanade.tachiyomi.data.database.DbProvider
 import eu.kanade.tachiyomi.data.database.models.LibraryManga
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.database.resolvers.LibraryMangaGetResolver
+import eu.kanade.tachiyomi.data.database.resolvers.MangaCoverLastModifiedPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.MangaFavoritePutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.MangaFlagsPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.MangaLastUpdatedPutResolver
@ -82,6 +83,11 @@ interface MangaQueries : DbProvider {
        .withPutResolver(MangaFlagsPutResolver())
        .prepare()

+    fun updateFlags(mangas: List<Manga>) = db.put()
+        .objects(mangas)
+        .withPutResolver(MangaFlagsPutResolver(true))
+        .prepare()
+
    fun updateLastUpdated(manga: Manga) = db.put()
        .`object`(manga)
        .withPutResolver(MangaLastUpdatedPutResolver())
@ -102,6 +108,11 @@ interface MangaQueries : DbProvider {
        .withPutResolver(MangaTitlePutResolver())
        .prepare()

+    fun updateMangaCoverLastModified(manga: Manga) = db.put()
+        .`object`(manga)
+        .withPutResolver(MangaCoverLastModifiedPutResolver())
+        .prepare()
+
    fun deleteManga(manga: Manga) = db.delete().`object`(manga).prepare()

    fun deleteMangas(mangas: List<Manga>) = db.delete().objects(mangas).prepare()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/RawQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/RawQueries.kt
@ -38,7 +38,9 @@ fun getRecentsQuery() =
    """
    SELECT ${Manga.TABLE}.${Manga.COL_URL} as mangaUrl, * FROM ${Manga.TABLE} JOIN ${Chapter.TABLE}
    ON ${Manga.TABLE}.${Manga.COL_ID} = ${Chapter.TABLE}.${Chapter.COL_MANGA_ID}
-    WHERE ${Manga.COL_FAVORITE} = 1 AND ${Chapter.COL_DATE_UPLOAD} > ?
+    WHERE ${Manga.COL_FAVORITE} = 1 
+    AND ${Chapter.COL_DATE_UPLOAD} > ?
+    AND ${Chapter.COL_DATE_FETCH} > ${Manga.COL_DATE_ADDED}
    ORDER BY ${Chapter.COL_DATE_UPLOAD} DESC
 """

@ -47,9 +49,8 @@ fun getRecentsQuery() =
 * The max_last_read table contains the most recent chapters grouped by manga
 * The select statement returns all information of chapters that have the same id as the chapter in max_last_read
 * and are read after the given time period
- * @return return limit is 25
 */
-fun getRecentMangasQuery() =
+fun getRecentMangasQuery(search: String = "") =
    """
    SELECT ${Manga.TABLE}.${Manga.COL_URL} as mangaUrl, ${Manga.TABLE}.*, ${Chapter.TABLE}.*, ${History.TABLE}.*
    FROM ${Manga.TABLE}
@ -63,9 +64,11 @@ fun getRecentMangasQuery() =
    ON ${Chapter.TABLE}.${Chapter.COL_ID} = ${History.TABLE}.${History.COL_CHAPTER_ID}
    GROUP BY ${Chapter.TABLE}.${Chapter.COL_MANGA_ID}) AS max_last_read
    ON ${Chapter.TABLE}.${Chapter.COL_MANGA_ID} = max_last_read.${Chapter.COL_MANGA_ID}
-    WHERE ${History.TABLE}.${History.COL_LAST_READ} > ? AND max_last_read.${History.COL_CHAPTER_ID} = ${History.TABLE}.${History.COL_CHAPTER_ID}
+    WHERE ${History.TABLE}.${History.COL_LAST_READ} > ?
+    AND max_last_read.${History.COL_CHAPTER_ID} = ${History.TABLE}.${History.COL_CHAPTER_ID}
+    AND lower(${Manga.TABLE}.${Manga.COL_TITLE}) LIKE '%$search%'
    ORDER BY max_last_read.${History.COL_LAST_READ} DESC
-    LIMIT 25
+    LIMIT ? OFFSET ?
 """

 fun getHistoryByMangaId() =
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaCoverLastModifiedPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaCoverLastModifiedPutResolver.kt
@ -0,0 +1,31 @@
+package eu.kanade.tachiyomi.data.database.resolvers
+
+import android.content.ContentValues
+import com.pushtorefresh.storio.sqlite.StorIOSQLite
+import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
+import com.pushtorefresh.storio.sqlite.operations.put.PutResult
+import com.pushtorefresh.storio.sqlite.queries.UpdateQuery
+import eu.kanade.tachiyomi.data.database.inTransactionReturn
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.tables.MangaTable
+
+class MangaCoverLastModifiedPutResolver : PutResolver<Manga>() {
+
+    override fun performPut(db: StorIOSQLite, manga: Manga) = db.inTransactionReturn {
+        val updateQuery = mapToUpdateQuery(manga)
+        val contentValues = mapToContentValues(manga)
+
+        val numberOfRowsUpdated = db.lowLevel().update(updateQuery, contentValues)
+        PutResult.newUpdateResult(numberOfRowsUpdated, updateQuery.table())
+    }
+
+    fun mapToUpdateQuery(manga: Manga) = UpdateQuery.builder()
+        .table(MangaTable.TABLE)
+        .where("${MangaTable.COL_ID} = ?")
+        .whereArgs(manga.id)
+        .build()
+
+    fun mapToContentValues(manga: Manga) = ContentValues(1).apply {
+        put(MangaTable.COL_COVER_LAST_MODIFIED, manga.cover_last_modified)
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaFlagsPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaFlagsPutResolver.kt
@ -9,7 +9,7 @@ import eu.kanade.tachiyomi.data.database.inTransactionReturn
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.database.tables.MangaTable

-class MangaFlagsPutResolver : PutResolver<Manga>() {
+class MangaFlagsPutResolver(private val updateAll: Boolean = false) : PutResolver<Manga>() {

    override fun performPut(db: StorIOSQLite, manga: Manga) = db.inTransactionReturn {
        val updateQuery = mapToUpdateQuery(manga)
@ -19,11 +19,21 @@ class MangaFlagsPutResolver : PutResolver<Manga>() {
        PutResult.newUpdateResult(numberOfRowsUpdated, updateQuery.table())
    }

-    fun mapToUpdateQuery(manga: Manga) = UpdateQuery.builder()
-        .table(MangaTable.TABLE)
-        .where("${MangaTable.COL_ID} = ?")
-        .whereArgs(manga.id)
-        .build()
+    fun mapToUpdateQuery(manga: Manga): UpdateQuery {
+        val builder = UpdateQuery.builder()
+
+        return if (updateAll) {
+            builder
+                .table(MangaTable.TABLE)
+                .build()
+        } else {
+            builder
+                .table(MangaTable.TABLE)
+                .where("${MangaTable.COL_ID} = ?")
+                .whereArgs(manga.id)
+                .build()
+        }
+    }

    fun mapToContentValues(manga: Manga) = ContentValues(1).apply {
        put(MangaTable.COL_CHAPTER_FLAGS, manga.chapter_flags)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/tables/MangaTable.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/tables/MangaTable.kt
@ -28,6 +28,8 @@ object MangaTable {

    const val COL_LAST_UPDATE = "last_update"

+    const val COL_DATE_ADDED = "date_added"
+
    const val COL_INITIALIZED = "initialized"

    const val COL_VIEWER = "viewer"
@ -38,6 +40,8 @@ object MangaTable {

    const val COL_CATEGORY = "category"

+    const val COL_COVER_LAST_MODIFIED = "cover_last_modified"
+
    val createTableQuery: String
        get() =
            """CREATE TABLE $TABLE(
@ -55,7 +59,9 @@ object MangaTable {
            $COL_LAST_UPDATE LONG,
            $COL_INITIALIZED BOOLEAN NOT NULL,
            $COL_VIEWER INTEGER NOT NULL,
-            $COL_CHAPTER_FLAGS INTEGER NOT NULL
+            $COL_CHAPTER_FLAGS INTEGER NOT NULL,
+            $COL_COVER_LAST_MODIFIED LONG NOT NULL,
+            $COL_DATE_ADDED LONG NOT NULL
            )"""

    val createUrlIndexQuery: String
@ -64,4 +70,20 @@ object MangaTable {
    val createLibraryIndexQuery: String
        get() = "CREATE INDEX library_${COL_FAVORITE}_index ON $TABLE($COL_FAVORITE) " +
            "WHERE $COL_FAVORITE = 1"
+
+    val addCoverLastModified: String
+        get() = "ALTER TABLE $TABLE ADD COLUMN $COL_COVER_LAST_MODIFIED LONG NOT NULL DEFAULT 0"
+
+    val addDateAdded: String
+        get() = "ALTER TABLE $TABLE ADD COLUMN $COL_DATE_ADDED LONG NOT NULL DEFAULT 0"
+
+    /**
+     * Used with addDateAdded to populate it with the oldest chapter fetch date.
+     */
+    val backfillDateAdded: String
+        get() = "UPDATE $TABLE SET $COL_DATE_ADDED = " +
+            "(SELECT MIN(${ChapterTable.COL_DATE_FETCH}) " +
+            "FROM $TABLE INNER JOIN ${ChapterTable.TABLE} " +
+            "ON $TABLE.$COL_ID = ${ChapterTable.TABLE}.${ChapterTable.COL_MANGA_ID} " +
+            "GROUP BY $TABLE.$COL_ID)"
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadCache.kt
@ -1,16 +1,16 @@
 package eu.kanade.tachiyomi.data.download

 import android.content.Context
-import android.net.Uri
+import androidx.core.net.toUri
 import com.hippo.unifile.UniFile
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.source.SourceManager
-import java.util.concurrent.TimeUnit
 import kotlinx.coroutines.flow.onEach
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
+import java.util.concurrent.TimeUnit

 /**
 * Cache where we dump the downloads directory from the filesystem. This class is needed because
@ -59,7 +59,7 @@ class DownloadCache(
     */
    private fun getDirectoryFromPreference(): UniFile {
        val dir = preferences.downloadsDirectory().get()
-        return UniFile.fromUri(context, Uri.parse(dir))
+        return UniFile.fromUri(context, dir.toUri())
    }

    /**
@ -81,7 +81,7 @@ class DownloadCache(
        if (sourceDir != null) {
            val mangaDir = sourceDir.files[provider.getMangaDirName(manga)]
            if (mangaDir != null) {
-                return provider.getChapterDirName(chapter) in mangaDir.files
+                return provider.getValidChapterDirNames(chapter).any { it in mangaDir.files }
            }
        }
        return false
@ -128,7 +128,7 @@ class DownloadCache(
            .orEmpty()
            .associate { it.name to SourceDirectory(it) }
            .mapNotNullKeys { entry ->
-                onlineSources.find { provider.getSourceDirName(it) == entry.key }?.id
+                onlineSources.find { provider.getSourceDirName(it).equals(entry.key, ignoreCase = true) }?.id
            }

        rootDir.files = sourceDirs
@ -191,9 +191,10 @@ class DownloadCache(
    fun removeChapter(chapter: Chapter, manga: Manga) {
        val sourceDir = rootDir.files[manga.source] ?: return
        val mangaDir = sourceDir.files[provider.getMangaDirName(manga)] ?: return
-        val chapterDirName = provider.getChapterDirName(chapter)
-        if (chapterDirName in mangaDir.files) {
-            mangaDir.files -= chapterDirName
+        provider.getValidChapterDirNames(chapter).forEach {
+            if (it in mangaDir.files) {
+                mangaDir.files -= it
+            }
        }
    }

@ -207,10 +208,11 @@ class DownloadCache(
    fun removeChapters(chapters: List<Chapter>, manga: Manga) {
        val sourceDir = rootDir.files[manga.source] ?: return
        val mangaDir = sourceDir.files[provider.getMangaDirName(manga)] ?: return
-        for (chapter in chapters) {
-            val chapterDirName = provider.getChapterDirName(chapter)
-            if (chapterDirName in mangaDir.files) {
-                mangaDir.files -= chapterDirName
+        chapters.forEach { chapter ->
+            provider.getValidChapterDirNames(chapter).forEach {
+                if (it in mangaDir.files) {
+                    mangaDir.files -= it
+                }
            }
        }
    }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadManager.kt
@ -3,14 +3,17 @@ package eu.kanade.tachiyomi.data.download
 import android.content.Context
 import com.hippo.unifile.UniFile
 import com.jakewharton.rxrelay.BehaviorRelay
+import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.download.model.Download
 import eu.kanade.tachiyomi.data.download.model.DownloadQueue
+import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.model.Page
 import rx.Observable
+import timber.log.Timber
 import uy.kohesive.injekt.injectLazy

 /**
@ -22,10 +25,8 @@ import uy.kohesive.injekt.injectLazy
 */
 class DownloadManager(private val context: Context) {

-    /**
-     * The sources manager.
-     */
-    private val sourceManager by injectLazy<SourceManager>()
+    private val sourceManager: SourceManager by injectLazy()
+    private val preferences: PreferencesHelper by injectLazy()

    /**
     * Downloads provider, used to retrieve the folders where the chapters are or should be stored.
@ -151,7 +152,7 @@ class DownloadManager(private val context: Context) {
                .filter { "image" in it.type.orEmpty() }

            if (files.isEmpty()) {
-                throw Exception("Page list is empty")
+                throw Exception(context.getString(R.string.page_list_empty_error))
            }

            files.sortedBy { it.name }
@ -172,6 +173,17 @@ class DownloadManager(private val context: Context) {
        return cache.isChapterDownloaded(chapter, manga, skipCache)
    }

+    /**
+     * Returns the download from queue if the chapter is queued for download
+     * else it will return null which means that the chapter is not queued for download
+     *
+     * @param chapter the chapter to check.
+     */
+    fun getChapterDownloadOrNull(chapter: Chapter): Download? {
+        return downloader.queue
+            .firstOrNull { it.chapter.id == chapter.id && it.chapter.manga_id == chapter.manga_id }
+    }
+
    /**
     * Returns the amount of downloaded chapters for a manga.
     *
@ -197,14 +209,19 @@ class DownloadManager(private val context: Context) {
     * @param manga the manga of the chapters.
     * @param source the source of the chapters.
     */
-    fun deleteChapters(chapters: List<Chapter>, manga: Manga, source: Source) {
-        queue.remove(chapters)
-        val chapterDirs = provider.findChapterDirs(chapters, manga, source)
+    fun deleteChapters(chapters: List<Chapter>, manga: Manga, source: Source): List<Chapter> {
+        val filteredChapters = getChaptersToDelete(chapters)
+
+        queue.remove(filteredChapters)
+
+        val chapterDirs = provider.findChapterDirs(filteredChapters, manga, source)
        chapterDirs.forEach { it.delete() }
-        cache.removeChapters(chapters, manga)
+        cache.removeChapters(filteredChapters, manga)
        if (cache.getDownloadCount(manga) == 0) { // Delete manga directory if empty
            chapterDirs.firstOrNull()?.parentFile?.delete()
        }
+
+        return filteredChapters
    }

    /**
@ -226,7 +243,7 @@ class DownloadManager(private val context: Context) {
     * @param manga the manga of the chapters.
     */
    fun enqueueDeleteChapters(chapters: List<Chapter>, manga: Manga) {
-        pendingDeleter.addChapters(chapters, manga)
+        pendingDeleter.addChapters(getChaptersToDelete(chapters), manga)
    }

    /**
@ -239,4 +256,38 @@ class DownloadManager(private val context: Context) {
            deleteChapters(chapters, manga, source)
        }
    }
+
+    /**
+     * Renames an already downloaded chapter
+     *
+     * @param source the source of the manga.
+     * @param manga the manga of the chapter.
+     * @param oldChapter the existing chapter with the old name.
+     * @param newChapter the target chapter with the new name.
+     */
+    fun renameChapter(source: Source, manga: Manga, oldChapter: Chapter, newChapter: Chapter) {
+        val oldNames = provider.getValidChapterDirNames(oldChapter)
+        val newName = provider.getChapterDirName(newChapter)
+        val mangaDir = provider.getMangaDir(manga, source)
+
+        // Assume there's only 1 version of the chapter name formats present
+        val oldFolder = oldNames.asSequence()
+            .mapNotNull { mangaDir.findFile(it) }
+            .firstOrNull()
+
+        if (oldFolder?.renameTo(newName) == true) {
+            cache.removeChapter(oldChapter, manga)
+            cache.addChapter(newName, mangaDir, manga)
+        } else {
+            Timber.e("Could not rename downloaded chapter: %s.", oldNames.joinToString())
+        }
+    }
+
+    private fun getChaptersToDelete(chapters: List<Chapter>): List<Chapter> {
+        return if (!preferences.removeBookmarkedChapters()) {
+            chapters.filterNot { it.bookmark }
+        } else {
+            chapters
+        }
+    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadNotifier.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadNotifier.kt
@ -12,9 +12,8 @@ import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.util.lang.chop
 import eu.kanade.tachiyomi.util.system.notificationBuilder
 import eu.kanade.tachiyomi.util.system.notificationManager
+import uy.kohesive.injekt.injectLazy
 import java.util.regex.Pattern
-import uy.kohesive.injekt.Injekt
-import uy.kohesive.injekt.api.get

 /**
 * DownloadNotifier is used to show notifications when downloading one or multiple chapters.
@ -23,11 +22,25 @@ import uy.kohesive.injekt.api.get
 */
 internal class DownloadNotifier(private val context: Context) {

-    private val notificationBuilder = context.notificationBuilder(Notifications.CHANNEL_DOWNLOADER) {
-        setLargeIcon(BitmapFactory.decodeResource(context.resources, R.mipmap.ic_launcher))
+    private val preferences: PreferencesHelper by injectLazy()
+
+    private val progressNotificationBuilder by lazy {
+        context.notificationBuilder(Notifications.CHANNEL_DOWNLOADER_PROGRESS) {
+            setLargeIcon(BitmapFactory.decodeResource(context.resources, R.mipmap.ic_launcher))
+        }
    }

-    private val preferences by lazy { Injekt.get<PreferencesHelper>() }
+    private val completeNotificationBuilder by lazy {
+        context.notificationBuilder(Notifications.CHANNEL_DOWNLOADER_COMPLETE) {
+            setAutoCancel(false)
+        }
+    }
+
+    private val errorNotificationBuilder by lazy {
+        context.notificationBuilder(Notifications.CHANNEL_DOWNLOADER_ERROR) {
+            setAutoCancel(false)
+        }
+    }

    /**
     * Status of download. Used for correct notification icon.
@ -49,14 +62,14 @@ internal class DownloadNotifier(private val context: Context) {
     *
     * @param id the id of the notification.
     */
-    private fun NotificationCompat.Builder.show(id: Int = Notifications.ID_DOWNLOAD_CHAPTER) {
+    private fun NotificationCompat.Builder.show(id: Int) {
        context.notificationManager.notify(id, build())
    }

    /**
     * Clear old actions if they exist.
     */
-    private fun clearActions() = with(notificationBuilder) {
+    private fun NotificationCompat.Builder.clearActions() {
        if (mActions.isNotEmpty()) {
            mActions.clear()
        }
@ -66,8 +79,8 @@ internal class DownloadNotifier(private val context: Context) {
     * Dismiss the downloader's notification. Downloader error notifications use a different id, so
     * those can only be dismissed by the user.
     */
-    fun dismiss() {
-        context.notificationManager.cancel(Notifications.ID_DOWNLOAD_CHAPTER)
+    fun dismissProgress() {
+        context.notificationManager.cancel(Notifications.ID_DOWNLOAD_CHAPTER_PROGRESS)
    }

    /**
@ -76,8 +89,7 @@ internal class DownloadNotifier(private val context: Context) {
     * @param download download object containing download information.
     */
    fun onProgressChange(download: Download) {
-        // Create notification
-        with(notificationBuilder) {
+        with(progressNotificationBuilder) {
            // Check if first call.
            if (!isDownloading) {
                setSmallIcon(android.R.drawable.stat_sys_download)
@ -94,8 +106,11 @@ internal class DownloadNotifier(private val context: Context) {
                )
            }

-            val downloadingProgressText = context.getString(R.string.chapter_downloading_progress)
-                .format(download.downloadedImages, download.pages!!.size)
+            val downloadingProgressText = context.getString(
+                R.string.chapter_downloading_progress,
+                download.downloadedImages,
+                download.pages!!.size
+            )

            if (preferences.hideNotificationContent()) {
                setContentTitle(downloadingProgressText)
@ -108,17 +123,16 @@ internal class DownloadNotifier(private val context: Context) {
            }

            setProgress(download.pages!!.size, download.downloadedImages, false)
-        }

-        // Displays the progress bar on notification
-        notificationBuilder.show()
+            show(Notifications.ID_DOWNLOAD_CHAPTER_PROGRESS)
+        }
    }

    /**
     * Show notification when download is paused.
     */
-    fun onDownloadPaused() {
-        with(notificationBuilder) {
+    fun onPaused() {
+        with(progressNotificationBuilder) {
            setContentTitle(context.getString(R.string.chapter_paused))
            setContentText(context.getString(R.string.download_notifier_download_paused))
            setSmallIcon(R.drawable.ic_pause_24dp)
@ -139,22 +153,45 @@ internal class DownloadNotifier(private val context: Context) {
                context.getString(R.string.action_cancel_all),
                NotificationReceiver.clearDownloadsPendingBroadcast(context)
            )
+
+            show(Notifications.ID_DOWNLOAD_CHAPTER_PROGRESS)
        }

-        // Show notification.
-        notificationBuilder.show()
-
        // Reset initial values
        isDownloading = false
    }

+    /**
+     *  This function shows a notification to inform download tasks are done.
+     */
+    fun onComplete() {
+        if (!errorThrown) {
+            // Create notification
+            with(completeNotificationBuilder) {
+                setContentTitle(context.getString(R.string.download_notifier_downloader_title))
+                setContentText(context.getString(R.string.download_notifier_download_finish))
+                setSmallIcon(android.R.drawable.stat_sys_download_done)
+                clearActions()
+                setAutoCancel(true)
+                setContentIntent(NotificationHandler.openDownloadManagerPendingActivity(context))
+                setProgress(0, 0, false)
+
+                show(Notifications.ID_DOWNLOAD_CHAPTER_COMPLETE)
+            }
+        }
+
+        // Reset states to default
+        errorThrown = false
+        isDownloading = false
+    }
+
    /**
     * Called when the downloader receives a warning.
     *
     * @param reason the text to show.
     */
    fun onWarning(reason: String) {
-        with(notificationBuilder) {
+        with(errorNotificationBuilder) {
            setContentTitle(context.getString(R.string.download_notifier_downloader_title))
            setContentText(reason)
            setSmallIcon(android.R.drawable.stat_sys_warning)
@ -162,8 +199,9 @@ internal class DownloadNotifier(private val context: Context) {
            clearActions()
            setContentIntent(NotificationHandler.openDownloadManagerPendingActivity(context))
            setProgress(0, 0, false)
+
+            show(Notifications.ID_DOWNLOAD_CHAPTER_ERROR)
        }
-        notificationBuilder.show()

        // Reset download information
        isDownloading = false
@ -178,7 +216,7 @@ internal class DownloadNotifier(private val context: Context) {
     */
    fun onError(error: String? = null, chapter: String? = null) {
        // Create notification
-        with(notificationBuilder) {
+        with(errorNotificationBuilder) {
            setContentTitle(
                chapter
                    ?: context.getString(R.string.download_notifier_downloader_title)
@ -189,8 +227,9 @@ internal class DownloadNotifier(private val context: Context) {
            setAutoCancel(false)
            setContentIntent(NotificationHandler.openDownloadManagerPendingActivity(context))
            setProgress(0, 0, false)
+
+            show(Notifications.ID_DOWNLOAD_CHAPTER_ERROR)
        }
-        notificationBuilder.show(Notifications.ID_DOWNLOAD_CHAPTER_ERROR)

        // Reset download information
        errorThrown = true
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadPendingDeleter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadPendingDeleter.kt
@ -1,10 +1,13 @@
 package eu.kanade.tachiyomi.data.download

 import android.content.Context
-import com.github.salomonbrys.kotson.fromJson
-import com.google.gson.Gson
+import androidx.core.content.edit
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import uy.kohesive.injekt.injectLazy

 /**
@ -14,15 +17,12 @@ import uy.kohesive.injekt.injectLazy
 */
 class DownloadPendingDeleter(context: Context) {

-    /**
-     * Gson instance to encode and decode chapters.
-     */
-    private val gson by injectLazy<Gson>()
+    private val json: Json by injectLazy()

    /**
     * Preferences used to store the list of chapters to delete.
     */
-    private val prefs = context.getSharedPreferences("chapters_to_delete", Context.MODE_PRIVATE)
+    private val preferences = context.getSharedPreferences("chapters_to_delete", Context.MODE_PRIVATE)

    /**
     * Last added chapter, used to avoid decoding from the preference too often.
@ -49,10 +49,10 @@ class DownloadPendingDeleter(context: Context) {
            // Last entry matches the manga, reuse it to avoid decoding json from preferences
            lastEntry.copy(chapters = newChapters)
        } else {
-            val existingEntry = prefs.getString(manga.id!!.toString(), null)
+            val existingEntry = preferences.getString(manga.id!!.toString(), null)
            if (existingEntry != null) {
                // Existing entry found on preferences, decode json and add the new chapter
-                val savedEntry = gson.fromJson<Entry>(existingEntry)
+                val savedEntry = json.decodeFromString<Entry>(existingEntry)

                // Append new chapters
                val newChapters = savedEntry.chapters.addUniqueById(chapters)
@ -68,8 +68,10 @@ class DownloadPendingDeleter(context: Context) {
        }

        // Save current state
-        val json = gson.toJson(newEntry)
-        prefs.edit().putString(newEntry.manga.id.toString(), json).apply()
+        val json = json.encodeToString(newEntry)
+        preferences.edit {
+            putString(newEntry.manga.id.toString(), json)
+        }
        lastAddedEntry = newEntry
    }

@ -82,11 +84,13 @@ class DownloadPendingDeleter(context: Context) {
    @Synchronized
    fun getPendingChapters(): Map<Manga, List<Chapter>> {
        val entries = decodeAll()
-        prefs.edit().clear().apply()
+        preferences.edit {
+            clear()
+        }
        lastAddedEntry = null

-        return entries.associate { entry ->
-            entry.manga.toModel() to entry.chapters.map { it.toModel() }
+        return entries.associate { (chapters, manga) ->
+            manga.toModel() to chapters.map { it.toModel() }
        }
    }

@ -94,9 +98,9 @@ class DownloadPendingDeleter(context: Context) {
     * Decodes all the chapters from preferences.
     */
    private fun decodeAll(): List<Entry> {
-        return prefs.all.values.mapNotNull { rawEntry ->
+        return preferences.all.values.mapNotNull { rawEntry ->
            try {
-                (rawEntry as? String)?.let { gson.fromJson<Entry>(it) }
+                (rawEntry as? String)?.let { json.decodeFromString<Entry>(it) }
            } catch (e: Exception) {
                null
            }
@ -119,6 +123,7 @@ class DownloadPendingDeleter(context: Context) {
    /**
     * Class used to save an entry of chapters with their manga into preferences.
     */
+    @Serializable
    private data class Entry(
        val chapters: List<ChapterEntry>,
        val manga: MangaEntry
@ -127,15 +132,18 @@ class DownloadPendingDeleter(context: Context) {
    /**
     * Class used to save an entry for a chapter into preferences.
     */
+    @Serializable
    private data class ChapterEntry(
        val id: Long,
        val url: String,
-        val name: String
+        val name: String,
+        val scanlator: String?
    )

    /**
     * Class used to save an entry for a manga into preferences.
     */
+    @Serializable
    private data class MangaEntry(
        val id: Long,
        val url: String,
@ -154,7 +162,7 @@ class DownloadPendingDeleter(context: Context) {
     * Returns a chapter entry from a chapter model.
     */
    private fun Chapter.toEntry(): ChapterEntry {
-        return ChapterEntry(id!!, url, name)
+        return ChapterEntry(id!!, url, name, scanlator)
    }

    /**
@ -174,6 +182,7 @@ class DownloadPendingDeleter(context: Context) {
            it.id = id
            it.url = url
            it.name = name
+            it.scanlator = scanlator
        }
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadProvider.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadProvider.kt
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi.data.download

 import android.content.Context
-import android.net.Uri
+import androidx.core.net.toUri
 import com.hippo.unifile.UniFile
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.database.models.Chapter
@ -32,14 +32,14 @@ class DownloadProvider(private val context: Context) {
     * The root directory for downloads.
     */
    private var downloadsDir = preferences.downloadsDirectory().get().let {
-        val dir = UniFile.fromUri(context, Uri.parse(it))
+        val dir = UniFile.fromUri(context, it.toUri())
        DiskUtil.createNoMediaFile(dir, context)
        dir
    }

    init {
        preferences.downloadsDirectory().asFlow()
-            .onEach { downloadsDir = UniFile.fromUri(context, Uri.parse(it)) }
+            .onEach { downloadsDir = UniFile.fromUri(context, it.toUri()) }
            .launchIn(scope)
    }

@ -88,7 +88,9 @@ class DownloadProvider(private val context: Context) {
     */
    fun findChapterDir(chapter: Chapter, manga: Manga, source: Source): UniFile? {
        val mangaDir = findMangaDir(manga, source)
-        return mangaDir?.findFile(getChapterDirName(chapter))
+        return getValidChapterDirNames(chapter).asSequence()
+            .mapNotNull { mangaDir?.findFile(it) }
+            .firstOrNull()
    }

    /**
@ -100,7 +102,11 @@ class DownloadProvider(private val context: Context) {
     */
    fun findChapterDirs(chapters: List<Chapter>, manga: Manga, source: Source): List<UniFile> {
        val mangaDir = findMangaDir(manga, source) ?: return emptyList()
-        return chapters.mapNotNull { mangaDir.findFile(getChapterDirName(it)) }
+        return chapters.mapNotNull { chapter ->
+            getValidChapterDirNames(chapter).asSequence()
+                .mapNotNull { mangaDir.findFile(it) }
+                .firstOrNull()
+        }
    }

    /**
@ -127,6 +133,25 @@ class DownloadProvider(private val context: Context) {
     * @param chapter the chapter to query.
     */
    fun getChapterDirName(chapter: Chapter): String {
-        return DiskUtil.buildValidFilename(chapter.name)
+        return DiskUtil.buildValidFilename(
+            when {
+                chapter.scanlator != null -> "${chapter.scanlator}_${chapter.name}"
+                else -> chapter.name
+            }
+        )
+    }
+
+    /**
+     * Returns valid downloaded chapter directory names.
+     *
+     * @param chapter the chapter to query.
+     */
+    fun getValidChapterDirNames(chapter: Chapter): List<String> {
+        return listOf(
+            getChapterDirName(chapter),
+
+            // Legacy chapter directory name used in v0.9.2 and before
+            DiskUtil.buildValidFilename(chapter.name)
+        )
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadService.kt
@ -4,11 +4,12 @@ import android.app.Notification
 import android.app.Service
 import android.content.Context
 import android.content.Intent
+import android.net.ConnectivityManager
 import android.net.NetworkInfo.State.CONNECTED
 import android.net.NetworkInfo.State.DISCONNECTED
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
+import androidx.core.content.ContextCompat
 import com.github.pwittchen.reactivenetwork.library.Connectivity
 import com.github.pwittchen.reactivenetwork.library.ReactiveNetwork
 import com.jakewharton.rxrelay.BehaviorRelay
@ -16,9 +17,9 @@ import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.notification.Notifications
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.util.lang.plusAssign
+import eu.kanade.tachiyomi.util.system.acquireWakeLock
 import eu.kanade.tachiyomi.util.system.connectivityManager
 import eu.kanade.tachiyomi.util.system.notification
-import eu.kanade.tachiyomi.util.system.powerManager
 import eu.kanade.tachiyomi.util.system.toast
 import rx.android.schedulers.AndroidSchedulers
 import rx.schedulers.Schedulers
@ -46,11 +47,7 @@ class DownloadService : Service() {
         */
        fun start(context: Context) {
            val intent = Intent(context, DownloadService::class.java)
-            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                context.startService(intent)
-            } else {
-                context.startForegroundService(intent)
-            }
+            ContextCompat.startForegroundService(context, intent)
        }

        /**
@ -70,9 +67,7 @@ class DownloadService : Service() {
    /**
     * Wake lock to prevent the device to enter sleep mode.
     */
-    private val wakeLock by lazy {
-        powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "DownloadService:WakeLock")
-    }
+    private lateinit var wakeLock: PowerManager.WakeLock

    /**
     * Subscriptions to store while the service is running.
@ -84,7 +79,8 @@ class DownloadService : Service() {
     */
    override fun onCreate() {
        super.onCreate()
-        startForeground(Notifications.ID_DOWNLOAD_CHAPTER, getPlaceholderNotification())
+        startForeground(Notifications.ID_DOWNLOAD_CHAPTER_PROGRESS, getPlaceholderNotification())
+        wakeLock = acquireWakeLock(javaClass.name)
        runningRelay.call(true)
        subscriptions = CompositeSubscription()
        listenDownloaderState()
@ -144,7 +140,7 @@ class DownloadService : Service() {
    private fun onNetworkStateChanged(connectivity: Connectivity) {
        when (connectivity.state) {
            CONNECTED -> {
-                if (preferences.downloadOnlyOverWifi() && connectivityManager.isActiveNetworkMetered) {
+                if (preferences.downloadOnlyOverWifi() && connectivityManager.activeNetworkInfo?.type != ConnectivityManager.TYPE_WIFI) {
                    downloadManager.stopDownloads(getString(R.string.download_notifier_text_only_wifi))
                } else {
                    val started = downloadManager.startDownloads()
@ -176,19 +172,19 @@ class DownloadService : Service() {
    /**
     * Releases the wake lock if it's held.
     */
-    fun PowerManager.WakeLock.releaseIfNeeded() {
+    private fun PowerManager.WakeLock.releaseIfNeeded() {
        if (isHeld) release()
    }

    /**
     * Acquires the wake lock if it's not held.
     */
-    fun PowerManager.WakeLock.acquireIfNeeded() {
+    private fun PowerManager.WakeLock.acquireIfNeeded() {
        if (!isHeld) acquire()
    }

    private fun getPlaceholderNotification(): Notification {
-        return notification(Notifications.CHANNEL_DOWNLOADER) {
+        return notification(Notifications.CHANNEL_DOWNLOADER_PROGRESS) {
            setContentTitle(getString(R.string.download_notifier_downloader_title))
        }
    }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadStore.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadStore.kt
@ -1,12 +1,16 @@
 package eu.kanade.tachiyomi.data.download

 import android.content.Context
-import com.google.gson.Gson
+import androidx.core.content.edit
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.download.model.Download
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.online.HttpSource
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import uy.kohesive.injekt.injectLazy

 /**
@ -24,11 +28,7 @@ class DownloadStore(
     */
    private val preferences = context.getSharedPreferences("active_downloads", Context.MODE_PRIVATE)

-    /**
-     * Gson instance to serialize/deserialize downloads.
-     */
-    private val gson: Gson by injectLazy()
-
+    private val json: Json by injectLazy()
    private val db: DatabaseHelper by injectLazy()

    /**
@ -42,9 +42,9 @@ class DownloadStore(
     * @param downloads the list of downloads to add.
     */
    fun addAll(downloads: List<Download>) {
-        val editor = preferences.edit()
-        downloads.forEach { editor.putString(getKey(it), serialize(it)) }
-        editor.apply()
+        preferences.edit {
+            downloads.forEach { putString(getKey(it), serialize(it)) }
+        }
    }

    /**
@ -53,14 +53,18 @@ class DownloadStore(
     * @param download the download to remove.
     */
    fun remove(download: Download) {
-        preferences.edit().remove(getKey(download)).apply()
+        preferences.edit {
+            remove(getKey(download))
+        }
    }

    /**
     * Removes all the downloads from the store.
     */
    fun clear() {
-        preferences.edit().clear().apply()
+        preferences.edit {
+            clear()
+        }
    }

    /**
@ -106,7 +110,7 @@ class DownloadStore(
     */
    private fun serialize(download: Download): String {
        val obj = DownloadObject(download.manga.id!!, download.chapter.id!!, counter++)
-        return gson.toJson(obj)
+        return json.encodeToString(obj)
    }

    /**
@ -116,7 +120,7 @@ class DownloadStore(
     */
    private fun deserialize(string: String): DownloadObject? {
        return try {
-            gson.fromJson(string, DownloadObject::class.java)
+            json.decodeFromString<DownloadObject>(string)
        } catch (e: Exception) {
            null
        }
@ -129,5 +133,6 @@ class DownloadStore(
     * @param chapterId the id of the chapter.
     * @param order the order of the download in the queue.
     */
+    @Serializable
    data class DownloadObject(val mangaId: Long, val chapterId: Long, val order: Int)
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/Downloader.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/Downloader.kt
@ -5,6 +5,7 @@ import android.webkit.MimeTypeMap
 import com.hippo.unifile.UniFile
 import com.jakewharton.rxrelay.BehaviorRelay
 import com.jakewharton.rxrelay.PublishRelay
+import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.cache.ChapterCache
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
@ -21,7 +22,6 @@ import eu.kanade.tachiyomi.util.lang.plusAssign
 import eu.kanade.tachiyomi.util.storage.DiskUtil
 import eu.kanade.tachiyomi.util.storage.saveTo
 import eu.kanade.tachiyomi.util.system.ImageUtil
-import java.io.File
 import kotlinx.coroutines.async
 import okhttp3.Response
 import rx.Observable
@ -30,6 +30,7 @@ import rx.schedulers.Schedulers
 import rx.subscriptions.CompositeSubscription
 import timber.log.Timber
 import uy.kohesive.injekt.injectLazy
+import java.io.File

 /**
 * This class is the one in charge of downloading chapters.
@ -116,6 +117,8 @@ class Downloader(
        val pending = queue.filter { it.status != Download.DOWNLOADED }
        pending.forEach { if (it.status != Download.QUEUE) it.status = Download.QUEUE }

+        notifier.paused = false
+
        downloadsRelay.call(pending)
        return pending.isNotEmpty()
    }
@ -134,9 +137,10 @@ class Downloader(
        } else {
            if (notifier.paused) {
                notifier.paused = false
-                notifier.onDownloadPaused()
+                notifier.onPaused()
            } else {
-                notifier.dismiss()
+                notifier.dismissProgress()
+                notifier.onComplete()
            }
        }
    }
@ -167,7 +171,7 @@ class Downloader(
                .forEach { it.status = Download.NOT_DOWNLOADED }
        }
        queue.clear()
-        notifier.dismiss()
+        notifier.dismissProgress()
    }

    /**
@ -181,8 +185,17 @@ class Downloader(
        subscriptions.clear()

        subscriptions += downloadsRelay.concatMapIterable { it }
-            .concatMap { downloadChapter(it).subscribeOn(Schedulers.io()) }
-            .onBackpressureBuffer()
+            // Concurrently download from 5 different sources
+            .groupBy { it.source }
+            .flatMap(
+                { bySource ->
+                    bySource.concatMap { download ->
+                        downloadChapter(download).subscribeOn(Schedulers.io())
+                    }
+                },
+                5
+            )
+            .onBackpressureLatest()
            .observeOn(AndroidSchedulers.mainThread())
            .subscribe(
                {
@ -219,13 +232,9 @@ class Downloader(
        val wasEmpty = queue.isEmpty()
        // Called in background thread, the operation can be slow with SAF.
        val chaptersWithoutDir = async {
-            val mangaDir = provider.findMangaDir(manga, source)
-
            chapters
-                // Avoid downloading chapters with the same name.
-                .distinctBy { it.name }
                // Filter out those already downloaded.
-                .filter { mangaDir?.findFile(provider.getChapterDirName(it)) == null }
+                .filter { provider.findChapterDir(it, manga, source) == null }
                // Add chapters to queue from the start.
                .sortedByDescending { it.source_order }
        }
@ -258,8 +267,16 @@ class Downloader(
     * @param download the chapter to be downloaded.
     */
    private fun downloadChapter(download: Download): Observable<Download> = Observable.defer {
-        val chapterDirname = provider.getChapterDirName(download.chapter)
        val mangaDir = provider.getMangaDir(download.manga, download.source)
+
+        val availSpace = DiskUtil.getAvailableStorageSpace(mangaDir)
+        if (availSpace != -1L && availSpace < MIN_DISK_SPACE) {
+            download.status = Download.ERROR
+            notifier.onError(context.getString(R.string.download_insufficient_space), download.chapter.name)
+            return@defer Observable.just(download)
+        }
+
+        val chapterDirname = provider.getChapterDirName(download.chapter)
        val tmpDir = mangaDir.createDirectory(chapterDirname + TMP_DIR_SUFFIX)

        val pageListObservable = if (download.pages == null) {
@ -267,7 +284,7 @@ class Downloader(
            download.source.fetchPageList(download.chapter)
                .doOnNext { pages ->
                    if (pages.isEmpty()) {
-                        throw Exception("Page list is empty")
+                        throw Exception(context.getString(R.string.page_list_empty_error))
                    }
                    download.pages = pages
                }
@ -289,7 +306,9 @@ class Downloader(
            // Get all the URLs to the source images, fetch pages if necessary
            .flatMap { download.source.fetchAllImageUrlsFromPageList(it) }
            // Start downloading images, consider we can have downloaded images already
-            .concatMap { page -> getOrDownloadImage(page, download, tmpDir) }
+            // Concurrently do 5 pages at a time
+            .flatMap({ page -> getOrDownloadImage(page, download, tmpDir) }, 5)
+            .onBackpressureLatest()
            // Do when page is downloaded.
            .doOnNext { notifier.onProgressChange(download) }
            .toList()
@ -475,5 +494,8 @@ class Downloader(

    companion object {
        const val TMP_DIR_SUFFIX = "_tmp"
+
+        // Arbitrary minimum required space to start a download: 50 MB
+        const val MIN_DISK_SPACE = 50 * 1024 * 1024
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/model/DownloadQueue.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/model/DownloadQueue.kt
@ -5,9 +5,9 @@ import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.download.DownloadStore
 import eu.kanade.tachiyomi.source.model.Page
-import java.util.concurrent.CopyOnWriteArrayList
 import rx.Observable
 import rx.subjects.PublishSubject
+import java.util.concurrent.CopyOnWriteArrayList

 class DownloadQueue(
    private val store: DownloadStore,
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/FileFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/FileFetcher.kt
@ -5,14 +5,14 @@ import android.util.Log
 import com.bumptech.glide.Priority
 import com.bumptech.glide.load.DataSource
 import com.bumptech.glide.load.data.DataFetcher
+import timber.log.Timber
 import java.io.File
 import java.io.FileInputStream
 import java.io.FileNotFoundException
 import java.io.IOException
 import java.io.InputStream
-import timber.log.Timber

-open class FileFetcher(private val file: File) : DataFetcher<InputStream> {
+open class FileFetcher(private val filePath: String = "") : DataFetcher<InputStream> {

    private var data: InputStream? = null

@ -20,7 +20,11 @@ open class FileFetcher(private val file: File) : DataFetcher<InputStream> {
        loadFromFile(callback)
    }

-    protected fun loadFromFile(callback: DataFetcher.DataCallback<in InputStream>) {
+    private fun loadFromFile(callback: DataFetcher.DataCallback<in InputStream>) {
+        loadFromFile(File(filePath), callback)
+    }
+
+    protected fun loadFromFile(file: File, callback: DataFetcher.DataCallback<in InputStream>) {
        try {
            data = FileInputStream(file)
        } catch (e: FileNotFoundException) {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/LibraryMangaCustomCoverFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/LibraryMangaCustomCoverFetcher.kt
@ -0,0 +1,25 @@
+package eu.kanade.tachiyomi.data.glide
+
+import com.bumptech.glide.Priority
+import com.bumptech.glide.load.data.DataFetcher
+import eu.kanade.tachiyomi.data.cache.CoverCache
+import eu.kanade.tachiyomi.data.database.models.Manga
+import java.io.File
+import java.io.InputStream
+import java.lang.Exception
+
+open class LibraryMangaCustomCoverFetcher(
+    private val manga: Manga,
+    private val coverCache: CoverCache
+) : FileFetcher() {
+
+    override fun loadData(priority: Priority, callback: DataFetcher.DataCallback<in InputStream>) {
+        getCustomCoverFile()?.let {
+            loadFromFile(it, callback)
+        } ?: callback.onLoadFailed(Exception("Custom cover file not found"))
+    }
+
+    protected fun getCustomCoverFile(): File? {
+        return coverCache.getCustomCoverFile(manga).takeIf { it.exists() }
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/LibraryMangaUrlFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/LibraryMangaUrlFetcher.kt
@ -2,6 +2,7 @@ package eu.kanade.tachiyomi.data.glide

 import com.bumptech.glide.Priority
 import com.bumptech.glide.load.data.DataFetcher
+import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.models.Manga
 import java.io.File
 import java.io.FileNotFoundException
@ -19,31 +20,41 @@ import java.io.InputStream
 class LibraryMangaUrlFetcher(
    private val networkFetcher: DataFetcher<InputStream>,
    private val manga: Manga,
-    private val file: File
-) :
-    FileFetcher(file) {
+    private val coverCache: CoverCache
+) : LibraryMangaCustomCoverFetcher(manga, coverCache) {

    override fun loadData(priority: Priority, callback: DataFetcher.DataCallback<in InputStream>) {
-        if (!file.exists()) {
+        getCustomCoverFile()?.let {
+            loadFromFile(it, callback)
+            return
+        }
+
+        val cover = coverCache.getCoverFile(manga)
+        if (cover == null) {
+            callback.onLoadFailed(Exception("Null thumbnail url"))
+            return
+        }
+
+        if (!cover.exists()) {
            networkFetcher.loadData(
                priority,
                object : DataFetcher.DataCallback<InputStream> {
                    override fun onDataReady(data: InputStream?) {
                        if (data != null) {
-                            val tmpFile = File(file.path + ".tmp")
+                            val tmpFile = File(cover.path + ".tmp")
                            try {
                                // Retrieve destination stream, create parent folders if needed.
                                val output = try {
                                    tmpFile.outputStream()
                                } catch (e: FileNotFoundException) {
-                                    tmpFile.parentFile.mkdirs()
+                                    tmpFile.parentFile!!.mkdirs()
                                    tmpFile.outputStream()
                                }

                                // Copy the file and rename to the original.
                                data.use { output.use { data.copyTo(output) } }
-                                tmpFile.renameTo(file)
-                                loadFromFile(callback)
+                                tmpFile.renameTo(cover)
+                                loadFromFile(cover, callback)
                            } catch (e: Exception) {
                                tmpFile.delete()
                                callback.onLoadFailed(e)
@ -59,7 +70,7 @@ class LibraryMangaUrlFetcher(
                }
            )
        } else {
-            loadFromFile(callback)
+            loadFromFile(cover, callback)
        }
    }

--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaSignature.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaSignature.kt
@ -1,27 +0,0 @@
-package eu.kanade.tachiyomi.data.glide
-
-import com.bumptech.glide.load.Key
-import eu.kanade.tachiyomi.data.database.models.Manga
-import java.io.File
-import java.security.MessageDigest
-
-class MangaSignature(manga: Manga, file: File) : Key {
-
-    private val key = manga.thumbnail_url + file.lastModified()
-
-    override fun equals(other: Any?): Boolean {
-        return if (other is MangaSignature) {
-            key == other.key
-        } else {
-            false
-        }
-    }
-
-    override fun hashCode(): Int {
-        return key.hashCode()
-    }
-
-    override fun updateDiskCacheKey(md: MessageDigest) {
-        md.update(key.toByteArray(Key.CHARSET))
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaThumbnail.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaThumbnail.kt
@ -1,7 +1,15 @@
 package eu.kanade.tachiyomi.data.glide

+import com.bumptech.glide.load.Key
 import eu.kanade.tachiyomi.data.database.models.Manga
+import java.security.MessageDigest

-data class MangaThumbnail(val manga: Manga, val url: String?)
+data class MangaThumbnail(val manga: Manga, val coverLastModified: Long) : Key {
+    val key = manga.url + coverLastModified

-fun Manga.toMangaThumbnail() = MangaThumbnail(this, this.thumbnail_url)
+    override fun updateDiskCacheKey(messageDigest: MessageDigest) {
+        messageDigest.update(key.toByteArray(Key.CHARSET))
+    }
+}
+
+fun Manga.toMangaThumbnail() = MangaThumbnail(this, cover_last_modified)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaThumbnailModelLoader.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaThumbnailModelLoader.kt
@ -1,6 +1,5 @@
 package eu.kanade.tachiyomi.data.glide

-import android.util.LruCache
 import com.bumptech.glide.integration.okhttp3.OkHttpStreamFetcher
 import com.bumptech.glide.load.Options
 import com.bumptech.glide.load.model.GlideUrl
@ -14,11 +13,11 @@ import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.network.NetworkHelper
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.online.HttpSource
-import java.io.File
-import java.io.InputStream
+import eu.kanade.tachiyomi.util.isLocal
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import uy.kohesive.injekt.injectLazy
+import java.io.InputStream

 /**
 * A class for loading a cover associated with a [Manga] that can be present in our own cache.
@ -48,12 +47,6 @@ class MangaThumbnailModelLoader : ModelLoader<MangaThumbnail, InputStream> {
     */
    private val defaultClient = Injekt.get<NetworkHelper>().client

-    /**
-     * LRU cache whose key is the thumbnail url of the manga, and the value contains the request url
-     * and the file where it should be stored in case the manga is a favorite.
-     */
-    private val lruCache = LruCache<GlideUrl, File>(100)
-
    /**
     * Map where request headers are stored for a source.
     */
@ -78,7 +71,7 @@ class MangaThumbnailModelLoader : ModelLoader<MangaThumbnail, InputStream> {
    /**
     * Returns a fetcher for the given manga or null if the url is empty.
     *
-     * @param manga the model.
+     * @param mangaThumbnail the model.
     * @param width the width of the view where the resource will be loaded.
     * @param height the height of the view where the resource will be loaded.
     */
@ -88,13 +81,16 @@ class MangaThumbnailModelLoader : ModelLoader<MangaThumbnail, InputStream> {
        height: Int,
        options: Options
    ): ModelLoader.LoadData<InputStream>? {
-        // Check thumbnail is not null or empty
-        val url = mangaThumbnail.url
-        if (url == null || url.isEmpty()) {
-            return null
-        }
-
        val manga = mangaThumbnail.manga
+        val url = manga.thumbnail_url
+
+        if (url.isNullOrEmpty()) {
+            return if (!manga.favorite || manga.isLocal()) {
+                null
+            } else {
+                ModelLoader.LoadData(mangaThumbnail, LibraryMangaCustomCoverFetcher(manga, coverCache))
+            }
+        }

        if (url.startsWith("http", true)) {
            val source = sourceManager.get(manga.source) as? HttpSource
@ -107,19 +103,13 @@ class MangaThumbnailModelLoader : ModelLoader<MangaThumbnail, InputStream> {
                return ModelLoader.LoadData(glideUrl, networkFetcher)
            }

-            // Obtain the file for this url from the LRU cache, or retrieve and add it to the cache.
-            val file = lruCache.getOrPut(glideUrl) { coverCache.getCoverFile(url) }
-
-            val libraryFetcher = LibraryMangaUrlFetcher(networkFetcher, manga, file)
+            val libraryFetcher = LibraryMangaUrlFetcher(networkFetcher, manga, coverCache)

            // Return an instance of the fetcher providing the needed elements.
-            return ModelLoader.LoadData(MangaSignature(manga, file), libraryFetcher)
+            return ModelLoader.LoadData(mangaThumbnail, libraryFetcher)
        } else {
-            // Get the file from the url, removing the scheme if present.
-            val file = File(url.substringAfter("file://"))
-
            // Return an instance of the fetcher providing the needed elements.
-            return ModelLoader.LoadData(MangaSignature(manga, file), FileFetcher(file))
+            return ModelLoader.LoadData(mangaThumbnail, FileFetcher(url.removePrefix("file://")))
        }
    }

@ -141,15 +131,4 @@ class MangaThumbnailModelLoader : ModelLoader<MangaThumbnail, InputStream> {
            }.build()
        }
    }
-
-    private inline fun <K, V> LruCache<K, V>.getOrPut(key: K, defaultValue: () -> V): V {
-        val value = get(key)
-        return if (value == null) {
-            val answer = defaultValue()
-            put(key, answer)
-            answer
-        } else {
-            value
-        }
-    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/TachiGlideModule.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/TachiGlideModule.kt
@ -14,9 +14,9 @@ import com.bumptech.glide.load.resource.drawable.DrawableTransitionOptions
 import com.bumptech.glide.module.AppGlideModule
 import com.bumptech.glide.request.RequestOptions
 import eu.kanade.tachiyomi.network.NetworkHelper
-import java.io.InputStream
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
+import java.io.InputStream

 /**
 * Class used to update Glide module settings
@ -36,12 +36,20 @@ class TachiGlideModule : AppGlideModule() {
    override fun registerComponents(context: Context, glide: Glide, registry: Registry) {
        val networkFactory = OkHttpUrlLoader.Factory(Injekt.get<NetworkHelper>().client)

-        registry.replace(GlideUrl::class.java, InputStream::class.java, networkFactory)
-        registry.append(MangaThumbnail::class.java, InputStream::class.java, MangaThumbnailModelLoader.Factory())
+        registry.replace(
+            GlideUrl::class.java,
+            InputStream::class.java,
+            networkFactory
+        )
        registry.append(
-            InputStream::class.java, InputStream::class.java,
-            PassthroughModelLoader
-                .Factory()
+            MangaThumbnail::class.java,
+            InputStream::class.java,
+            MangaThumbnailModelLoader.Factory()
+        )
+        registry.append(
+            InputStream::class.java,
+            InputStream::class.java,
+            PassthroughModelLoader.Factory()
        )
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateJob.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateJob.kt
@ -9,16 +9,19 @@ import androidx.work.WorkManager
 import androidx.work.Worker
 import androidx.work.WorkerParameters
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
-import java.util.concurrent.TimeUnit
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
+import java.util.concurrent.TimeUnit

 class LibraryUpdateJob(private val context: Context, workerParams: WorkerParameters) :
    Worker(context, workerParams) {

    override fun doWork(): Result {
-        LibraryUpdateService.start(context)
-        return Result.success()
+        return if (LibraryUpdateService.start(context)) {
+            Result.success()
+        } else {
+            Result.failure()
+        }
    }

    companion object {
@ -42,8 +45,10 @@ class LibraryUpdateJob(private val context: Context, workerParams: WorkerParamet
                    .build()

                val request = PeriodicWorkRequestBuilder<LibraryUpdateJob>(
-                    interval.toLong(), TimeUnit.HOURS,
-                    10, TimeUnit.MINUTES
+                    interval.toLong(),
+                    TimeUnit.HOURS,
+                    10,
+                    TimeUnit.MINUTES
                )
                    .addTag(TAG)
                    .setConstraints(constraints)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateNotifier.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateNotifier.kt
@ -0,0 +1,310 @@
+package eu.kanade.tachiyomi.data.library
+
+import android.app.Notification
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.net.Uri
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import com.bumptech.glide.Glide
+import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.glide.toMangaThumbnail
+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.ui.main.MainActivity
+import eu.kanade.tachiyomi.util.lang.chop
+import eu.kanade.tachiyomi.util.system.notification
+import eu.kanade.tachiyomi.util.system.notificationBuilder
+import eu.kanade.tachiyomi.util.system.notificationManager
+import uy.kohesive.injekt.injectLazy
+import java.text.DecimalFormat
+import java.text.DecimalFormatSymbols
+
+class LibraryUpdateNotifier(private val context: Context) {
+
+    private val preferences: PreferencesHelper by injectLazy()
+
+    /**
+     * Pending intent of action that cancels the library update
+     */
+    private val cancelIntent by lazy {
+        NotificationReceiver.cancelLibraryUpdatePendingBroadcast(context)
+    }
+
+    /**
+     * Bitmap of the app for notifications.
+     */
+    private val notificationBitmap by lazy {
+        BitmapFactory.decodeResource(context.resources, R.mipmap.ic_launcher)
+    }
+
+    /**
+     * Cached progress notification to avoid creating a lot.
+     */
+    val progressNotificationBuilder by lazy {
+        context.notificationBuilder(Notifications.CHANNEL_LIBRARY) {
+            setContentTitle(context.getString(R.string.app_name))
+            setSmallIcon(R.drawable.ic_refresh_24dp)
+            setLargeIcon(notificationBitmap)
+            setOngoing(true)
+            setOnlyAlertOnce(true)
+            addAction(R.drawable.ic_close_24dp, context.getString(android.R.string.cancel), cancelIntent)
+        }
+    }
+
+    /**
+     * Shows the notification containing the currently updating manga and the progress.
+     *
+     * @param manga the manga that's being updated.
+     * @param current the current progress.
+     * @param total the total progress.
+     */
+    fun showProgressNotification(manga: Manga, current: Int, total: Int) {
+        val title = if (preferences.hideNotificationContent()) {
+            context.getString(R.string.notification_check_updates)
+        } else {
+            manga.title
+        }
+
+        context.notificationManager.notify(
+            Notifications.ID_LIBRARY_PROGRESS,
+            progressNotificationBuilder
+                .setContentTitle(title)
+                .setProgress(total, current, false)
+                .build()
+        )
+    }
+
+    /**
+     * Shows notification containing update entries that failed with action to open full log.
+     *
+     * @param errors List of entry titles that failed to update.
+     * @param uri Uri for error log file containing all titles that failed.
+     */
+    fun showUpdateErrorNotification(errors: List<String>, uri: Uri) {
+        if (errors.isEmpty()) {
+            return
+        }
+
+        context.notificationManager.notify(
+            Notifications.ID_LIBRARY_ERROR,
+            context.notificationBuilder(Notifications.CHANNEL_LIBRARY) {
+                setContentTitle(context.resources.getQuantityString(R.plurals.notification_update_error, errors.size, errors.size))
+                setStyle(
+                    NotificationCompat.BigTextStyle().bigText(
+                        errors.joinToString("\n") {
+                            it.chop(NOTIF_TITLE_MAX_LEN)
+                        }
+                    )
+                )
+                setSmallIcon(R.drawable.ic_tachi)
+
+                val errorLogIntent = NotificationReceiver.openErrorLogPendingActivity(context, uri)
+
+                setContentIntent(errorLogIntent)
+                addAction(
+                    R.drawable.nnf_ic_file_folder,
+                    context.getString(R.string.action_open_log),
+                    errorLogIntent
+                )
+            }
+                .build()
+        )
+    }
+
+    /**
+     * Shows the notification containing the result of the update done by the service.
+     *
+     * @param updates a list of manga with new updates.
+     */
+    fun showUpdateNotifications(updates: List<Pair<Manga, Array<Chapter>>>) {
+        if (updates.isEmpty()) {
+            return
+        }
+
+        NotificationManagerCompat.from(context).apply {
+            // Parent group notification
+            notify(
+                Notifications.ID_NEW_CHAPTERS,
+                context.notification(Notifications.CHANNEL_NEW_CHAPTERS) {
+                    setContentTitle(context.getString(R.string.notification_new_chapters))
+                    if (updates.size == 1 && !preferences.hideNotificationContent()) {
+                        setContentText(updates.first().first.title.chop(NOTIF_TITLE_MAX_LEN))
+                    } else {
+                        setContentText(context.resources.getQuantityString(R.plurals.notification_new_chapters_summary, updates.size, updates.size))
+
+                        if (!preferences.hideNotificationContent()) {
+                            setStyle(
+                                NotificationCompat.BigTextStyle().bigText(
+                                    updates.joinToString("\n") {
+                                        it.first.title.chop(NOTIF_TITLE_MAX_LEN)
+                                    }
+                                )
+                            )
+                        }
+                    }
+
+                    setSmallIcon(R.drawable.ic_tachi)
+                    setLargeIcon(notificationBitmap)
+
+                    setGroup(Notifications.GROUP_NEW_CHAPTERS)
+                    setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_SUMMARY)
+                    setGroupSummary(true)
+                    priority = NotificationCompat.PRIORITY_HIGH
+
+                    setContentIntent(getNotificationIntent())
+                    setAutoCancel(true)
+                }
+            )
+
+            // Per-manga notification
+            if (!preferences.hideNotificationContent()) {
+                updates.forEach { (manga, chapters) ->
+                    notify(manga.id.hashCode(), createNewChaptersNotification(manga, chapters))
+                }
+            }
+        }
+    }
+
+    private fun createNewChaptersNotification(manga: Manga, chapters: Array<Chapter>): Notification {
+        return context.notification(Notifications.CHANNEL_NEW_CHAPTERS) {
+            setContentTitle(manga.title)
+
+            val description = getNewChaptersDescription(chapters)
+            setContentText(description)
+            setStyle(NotificationCompat.BigTextStyle().bigText(description))
+
+            setSmallIcon(R.drawable.ic_tachi)
+
+            val icon = getMangaIcon(manga)
+            if (icon != null) {
+                setLargeIcon(icon)
+            }
+
+            setGroup(Notifications.GROUP_NEW_CHAPTERS)
+            setGroupAlertBehavior(NotificationCompat.GROUP_ALERT_SUMMARY)
+            priority = NotificationCompat.PRIORITY_HIGH
+
+            // Open first chapter on tap
+            setContentIntent(NotificationReceiver.openChapterPendingActivity(context, manga, chapters.first()))
+            setAutoCancel(true)
+
+            // Mark chapters as read action
+            addAction(
+                R.drawable.ic_glasses_black_24dp,
+                context.getString(R.string.action_mark_as_read),
+                NotificationReceiver.markAsReadPendingBroadcast(
+                    context,
+                    manga,
+                    chapters,
+                    Notifications.ID_NEW_CHAPTERS
+                )
+            )
+            // View chapters action
+            addAction(
+                R.drawable.ic_book_24dp,
+                context.getString(R.string.action_view_chapters),
+                NotificationReceiver.openChapterPendingActivity(
+                    context,
+                    manga,
+                    Notifications.ID_NEW_CHAPTERS
+                )
+            )
+        }
+    }
+
+    /**
+     * Cancels the progress notification.
+     */
+    fun cancelProgressNotification() {
+        context.notificationManager.cancel(Notifications.ID_LIBRARY_PROGRESS)
+    }
+
+    private fun getMangaIcon(manga: Manga): Bitmap? {
+        return try {
+            Glide.with(context)
+                .asBitmap()
+                .load(manga.toMangaThumbnail())
+                .dontTransform()
+                .centerCrop()
+                .circleCrop()
+                .override(
+                    NOTIF_ICON_SIZE,
+                    NOTIF_ICON_SIZE
+                )
+                .submit()
+                .get()
+        } catch (e: Exception) {
+            null
+        }
+    }
+
+    private fun getNewChaptersDescription(chapters: Array<Chapter>): String {
+        val formatter = DecimalFormat(
+            "#.###",
+            DecimalFormatSymbols()
+                .apply { decimalSeparator = '.' }
+        )
+
+        val displayableChapterNumbers = chapters
+            .filter { it.isRecognizedNumber }
+            .sortedBy { it.chapter_number }
+            .map { formatter.format(it.chapter_number) }
+            .toSet()
+
+        return when (displayableChapterNumbers.size) {
+            // No sensible chapter numbers to show (i.e. no chapters have parsed chapter number)
+            0 -> {
+                // "1 new chapter" or "5 new chapters"
+                context.resources.getQuantityString(R.plurals.notification_chapters_generic, chapters.size, chapters.size)
+            }
+            // Only 1 chapter has a parsed chapter number
+            1 -> {
+                val remaining = chapters.size - displayableChapterNumbers.size
+                if (remaining == 0) {
+                    // "Chapter 2.5"
+                    context.resources.getString(R.string.notification_chapters_single, displayableChapterNumbers.first())
+                } else {
+                    // "Chapter 2.5 and 10 more"
+                    context.resources.getString(R.string.notification_chapters_single_and_more, displayableChapterNumbers.first(), remaining)
+                }
+            }
+            // Everything else (i.e. multiple parsed chapter numbers)
+            else -> {
+                val shouldTruncate = displayableChapterNumbers.size > NOTIF_MAX_CHAPTERS
+                if (shouldTruncate) {
+                    // "Chapters 1, 2.5, 3, 4, 5 and 10 more"
+                    val remaining = displayableChapterNumbers.size - NOTIF_MAX_CHAPTERS
+                    val joinedChapterNumbers = displayableChapterNumbers.take(NOTIF_MAX_CHAPTERS).joinToString(", ")
+                    context.resources.getQuantityString(R.plurals.notification_chapters_multiple_and_more, remaining, joinedChapterNumbers, remaining)
+                } else {
+                    // "Chapters 1, 2.5, 3"
+                    context.resources.getString(R.string.notification_chapters_multiple, displayableChapterNumbers.joinToString(", "))
+                }
+            }
+        }
+    }
+
+    /**
+     * Returns an intent to open the main activity.
+     */
+    private fun getNotificationIntent(): PendingIntent {
+        val intent = Intent(context, MainActivity::class.java).apply {
+            flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
+            action = MainActivity.SHORTCUT_RECENTLY_UPDATED
+        }
+        return PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
+    }
+
+    companion object {
+        private const val NOTIF_MAX_CHAPTERS = 5
+        private const val NOTIF_TITLE_MAX_LEN = 45
+        private const val NOTIF_ICON_SIZE = 192
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateRanker.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateRanker.kt
@ -3,7 +3,7 @@ package eu.kanade.tachiyomi.data.library
 import eu.kanade.tachiyomi.data.database.models.Manga

 /**
- * This class will provide various functions to Rank mangas to efficiently schedule mangas to update.
+ * This class will provide various functions to rank manga to efficiently schedule manga to update.
 */
 object LibraryUpdateRanker {

@ -13,7 +13,7 @@ object LibraryUpdateRanker {
    )

    /**
-     * Provides a total ordering over all the Mangas.
+     * Provides a total ordering over all the [Manga]s.
     *
     * Assumption: An active [Manga] mActive is expected to have been last updated after an
     * inactive [Manga] mInactive.
@ -21,23 +21,19 @@ object LibraryUpdateRanker {
     * Using this insight, function returns a Comparator for which mActive appears before mInactive.
     * @return a Comparator that ranks manga based on relevance.
     */
-    fun latestFirstRanking(): Comparator<Manga> {
-        return Comparator { mangaFirst: Manga,
-            mangaSecond: Manga ->
-            compareValues(mangaSecond.last_update, mangaFirst.last_update)
+    private fun latestFirstRanking(): Comparator<Manga> =
+        Comparator { first: Manga, second: Manga ->
+            compareValues(second.last_update, first.last_update)
        }
-    }

    /**
-     * Provides a total ordering over all the Mangas.
+     * Provides a total ordering over all the [Manga]s.
     *
     * Order the manga lexicographically.
     * @return a Comparator that ranks manga lexicographically based on the title.
     */
-    fun lexicographicRanking(): Comparator<Manga> {
-        return Comparator { mangaFirst: Manga,
-            mangaSecond: Manga ->
-            compareValues(mangaFirst.title, mangaSecond.title)
+    private fun lexicographicRanking(): Comparator<Manga> =
+        Comparator { first: Manga, second: Manga ->
+            compareValues(first.title, second.title)
        }
-    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
@ -1,20 +1,13 @@
 package eu.kanade.tachiyomi.data.library

-import android.app.Notification
-import android.app.PendingIntent
 import android.app.Service
 import android.content.Context
 import android.content.Intent
-import android.graphics.Bitmap
-import android.graphics.BitmapFactory
-import android.os.Build
 import android.os.IBinder
 import android.os.PowerManager
-import androidx.core.app.NotificationCompat
-import androidx.core.app.NotificationCompat.GROUP_ALERT_SUMMARY
-import androidx.core.app.NotificationManagerCompat
-import com.bumptech.glide.Glide
+import androidx.core.content.ContextCompat
 import eu.kanade.tachiyomi.R
+import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.data.database.models.Chapter
@ -22,33 +15,28 @@ import eu.kanade.tachiyomi.data.database.models.LibraryManga
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.download.DownloadManager
 import eu.kanade.tachiyomi.data.download.DownloadService
-import eu.kanade.tachiyomi.data.glide.toMangaThumbnail
 import eu.kanade.tachiyomi.data.library.LibraryUpdateRanker.rankingScheme
 import eu.kanade.tachiyomi.data.library.LibraryUpdateService.Companion.start
-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.data.track.TrackManager
 import eu.kanade.tachiyomi.source.SourceManager
 import eu.kanade.tachiyomi.source.model.SManga
-import eu.kanade.tachiyomi.source.online.HttpSource
-import eu.kanade.tachiyomi.ui.main.MainActivity
+import eu.kanade.tachiyomi.util.chapter.NoChaptersException
 import eu.kanade.tachiyomi.util.chapter.syncChaptersWithSource
-import eu.kanade.tachiyomi.util.lang.chop
+import eu.kanade.tachiyomi.util.prepUpdateCover
+import eu.kanade.tachiyomi.util.shouldDownloadNewChapters
+import eu.kanade.tachiyomi.util.storage.getUriCompat
+import eu.kanade.tachiyomi.util.system.acquireWakeLock
 import eu.kanade.tachiyomi.util.system.isServiceRunning
-import eu.kanade.tachiyomi.util.system.notification
-import eu.kanade.tachiyomi.util.system.notificationBuilder
-import eu.kanade.tachiyomi.util.system.notificationManager
-import java.text.DecimalFormat
-import java.text.DecimalFormatSymbols
-import java.util.ArrayList
-import java.util.concurrent.atomic.AtomicInteger
 import rx.Observable
 import rx.Subscription
 import rx.schedulers.Schedulers
 import timber.log.Timber
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
+import java.io.File
+import java.util.concurrent.atomic.AtomicInteger

 /**
 * This class will take care of updating the chapters of the manga from the library. It can be
@ -63,7 +51,8 @@ class LibraryUpdateService(
    val sourceManager: SourceManager = Injekt.get(),
    val preferences: PreferencesHelper = Injekt.get(),
    val downloadManager: DownloadManager = Injekt.get(),
-    val trackManager: TrackManager = Injekt.get()
+    val trackManager: TrackManager = Injekt.get(),
+    val coverCache: CoverCache = Injekt.get()
 ) : Service() {

    /**
@ -71,45 +60,21 @@ class LibraryUpdateService(
     */
    private lateinit var wakeLock: PowerManager.WakeLock

+    private lateinit var notifier: LibraryUpdateNotifier
+
    /**
     * Subscription where the update is done.
     */
    private var subscription: Subscription? = null

-    /**
-     * Pending intent of action that cancels the library update
-     */
-    private val cancelIntent by lazy {
-        NotificationReceiver.cancelLibraryUpdatePendingBroadcast(this)
-    }
-
-    /**
-     * Bitmap of the app for notifications.
-     */
-    private val notificationBitmap by lazy {
-        BitmapFactory.decodeResource(resources, R.mipmap.ic_launcher)
-    }
-
-    /**
-     * Cached progress notification to avoid creating a lot.
-     */
-    private val progressNotificationBuilder by lazy {
-        notificationBuilder(Notifications.CHANNEL_LIBRARY) {
-            setContentTitle(getString(R.string.app_name))
-            setSmallIcon(R.drawable.ic_refresh_24dp)
-            setLargeIcon(notificationBitmap)
-            setOngoing(true)
-            setOnlyAlertOnce(true)
-            addAction(R.drawable.ic_close_24dp, getString(android.R.string.cancel), cancelIntent)
-        }
-    }
-
    /**
     * Defines what should be updated within a service execution.
     */
    enum class Target {
        CHAPTERS, // Manga chapters
-        DETAILS, // Manga metadata
+
+        COVERS, // Manga covers
+
        TRACKING // Tracking metadata
    }

@ -125,10 +90,6 @@ class LibraryUpdateService(
         */
        const val KEY_TARGET = "target"

-        private const val NOTIF_MAX_CHAPTERS = 5
-        private const val NOTIF_TITLE_MAX_LEN = 45
-        private const val NOTIF_ICON_SIZE = 192
-
        /**
         * Returns the status of the service.
         *
@ -154,11 +115,7 @@ class LibraryUpdateService(
                    putExtra(KEY_TARGET, target)
                    category?.let { putExtra(KEY_CATEGORY, it.id) }
                }
-                if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
-                    context.startService(intent)
-                } else {
-                    context.startForegroundService(intent)
-                }
+                ContextCompat.startForegroundService(context, intent)

                return true
            }
@ -182,11 +139,11 @@ class LibraryUpdateService(
     */
    override fun onCreate() {
        super.onCreate()
-        startForeground(Notifications.ID_LIBRARY_PROGRESS, progressNotificationBuilder.build())
-        wakeLock = (getSystemService(Context.POWER_SERVICE) as PowerManager).newWakeLock(
-            PowerManager.PARTIAL_WAKE_LOCK, "LibraryUpdateService:WakeLock"
-        )
-        wakeLock.acquire()
+
+        notifier = LibraryUpdateNotifier(this)
+        wakeLock = acquireWakeLock(javaClass.name)
+
+        startForeground(Notifications.ID_LIBRARY_PROGRESS, notifier.progressNotificationBuilder.build())
    }

    /**
@ -234,7 +191,7 @@ class LibraryUpdateService(
                // Update either chapter list or manga details.
                when (target) {
                    Target.CHAPTERS -> updateChapterList(mangaList)
-                    Target.DETAILS -> updateDetails(mangaList)
+                    Target.COVERS -> updateCovers(mangaList)
                    Target.TRACKING -> updateTrackings(mangaList)
                }
            }
@ -296,36 +253,33 @@ class LibraryUpdateService(
        // Initialize the variables holding the progress of the updates.
        val count = AtomicInteger(0)
        // List containing new updates
-        val newUpdates = ArrayList<Pair<LibraryManga, Array<Chapter>>>()
+        val newUpdates = mutableListOf<Pair<LibraryManga, Array<Chapter>>>()
        // List containing failed updates
-        val failedUpdates = ArrayList<Manga>()
-        // List containing categories that get included in downloads.
-        val categoriesToDownload = preferences.downloadNewCategories().get().map(String::toInt)
-        // Boolean to determine if user wants to automatically download new chapters.
-        val downloadNew = preferences.downloadNew().get()
+        val failedUpdates = mutableListOf<Pair<Manga, String?>>()
        // Boolean to determine if DownloadManager has downloads
        var hasDownloads = false

        // Emit each manga and update it sequentially.
        return Observable.from(mangaToUpdate)
            // Notify manga that will update.
-            .doOnNext { showProgressNotification(it, count.andIncrement, mangaToUpdate.size) }
-            // Update the chapters of the manga.
+            .doOnNext { notifier.showProgressNotification(it, count.andIncrement, mangaToUpdate.size) }
+            // Update the chapters of the manga
            .concatMap { manga ->
                updateManga(manga)
                    // If there's any error, return empty update and continue.
                    .onErrorReturn {
-                        failedUpdates.add(manga)
+                        val errorMessage = if (it is NoChaptersException) {
+                            getString(R.string.no_chapters_error)
+                        } else {
+                            it.message
+                        }
+                        failedUpdates.add(Pair(manga, errorMessage))
                        Pair(emptyList(), emptyList())
                    }
                    // Filter out mangas without new chapters (or failed).
-                    .filter { pair -> pair.first.isNotEmpty() }
+                    .filter { (first) -> first.isNotEmpty() }
                    .doOnNext {
-                        if (downloadNew && (
-                            categoriesToDownload.isEmpty() ||
-                                manga.category in categoriesToDownload
-                            )
-                        ) {
+                        if (manga.shouldDownloadNewChapters(db, preferences)) {
                            downloadChapters(manga, it.first)
                            hasDownloads = true
                        }
@ -334,7 +288,10 @@ class LibraryUpdateService(
                    .map {
                        Pair(
                            manga,
-                            (it.first.sortedByDescending { ch -> ch.source_order }.toTypedArray())
+                            (
+                                it.first.sortedByDescending { ch -> ch.source_order }
+                                    .toTypedArray()
+                                )
                        )
                    }
            }
@ -345,31 +302,30 @@ class LibraryUpdateService(
            }
            // Notify result of the overall update.
            .doOnCompleted {
+                notifier.cancelProgressNotification()
+
                if (newUpdates.isNotEmpty()) {
-                    showUpdateNotifications(newUpdates)
-                    if (downloadNew && hasDownloads) {
+                    notifier.showUpdateNotifications(newUpdates)
+                    if (hasDownloads) {
                        DownloadService.start(this)
                    }
                }

-                if (failedUpdates.isNotEmpty()) {
-                    Timber.e("Failed updating: ${failedUpdates.map { it.title }}")
+                if (preferences.showLibraryUpdateErrors() && failedUpdates.isNotEmpty()) {
+                    val errorFile = writeErrorFile(failedUpdates)
+                    notifier.showUpdateErrorNotification(
+                        failedUpdates.map { it.first.title },
+                        errorFile.getUriCompat(this)
+                    )
                }
-
-                cancelProgressNotification()
            }
-            .map { manga -> manga.first }
+            .map { (first) -> first }
    }

-    fun downloadChapters(manga: Manga, chapters: List<Chapter>) {
-        // we need to get the chapters from the db so we have chapter ids
-        val mangaChapters = db.getChapters(manga).executeAsBlocking()
-        val dbChapters = chapters.map {
-            mangaChapters.find { mangaChapter -> mangaChapter.url == it.url }!!
-        }
+    private fun downloadChapters(manga: Manga, chapters: List<Chapter>) {
        // We don't want to start downloading while the library is updating, because websites
        // may don't like it and they could ban the user.
-        downloadManager.downloadChapters(manga, dbChapters, false)
+        downloadManager.downloadChapters(manga, chapters, false)
    }

    /**
@ -379,41 +335,56 @@ class LibraryUpdateService(
     * @return a pair of the inserted and removed chapters.
     */
    fun updateManga(manga: Manga): Observable<Pair<List<Chapter>, List<Chapter>>> {
-        val source = sourceManager.get(manga.source) as? HttpSource ?: return Observable.empty()
+        val source = sourceManager.getOrStub(manga.source)
+
+        // Update manga details metadata in the background
+        if (preferences.autoUpdateMetadata()) {
+            source.fetchMangaDetails(manga)
+                .map { updatedManga ->
+                    // Avoid "losing" existing cover
+                    if (!updatedManga.thumbnail_url.isNullOrEmpty()) {
+                        manga.prepUpdateCover(coverCache, updatedManga, false)
+                    } else {
+                        updatedManga.thumbnail_url = manga.thumbnail_url
+                    }
+
+                    manga.copyFrom(updatedManga)
+                    db.insertManga(manga).executeAsBlocking()
+                    manga
+                }
+                .onErrorResumeNext { Observable.just(manga) }
+                .subscribeOn(Schedulers.io())
+                .subscribe()
+        }
+
        return source.fetchChapterList(manga)
            .map { syncChaptersWithSource(db, it, manga, source) }
    }

-    /**
-     * Method that updates the details of the given list of manga. It's called in a background
-     * thread, so it's safe to do heavy operations or network calls here.
-     *
-     * @param mangaToUpdate the list to update
-     * @return an observable delivering the progress of each update.
-     */
-    fun updateDetails(mangaToUpdate: List<LibraryManga>): Observable<LibraryManga> {
-        // Initialize the variables holding the progress of the updates.
-        val count = AtomicInteger(0)
+    private fun updateCovers(mangaToUpdate: List<LibraryManga>): Observable<LibraryManga> {
+        var count = 0

-        // Emit each manga and update it sequentially.
        return Observable.from(mangaToUpdate)
-            // Notify manga that will update.
-            .doOnNext { showProgressNotification(it, count.andIncrement, mangaToUpdate.size) }
-            // Update the details of the manga.
-            .concatMap { manga ->
-                val source = sourceManager.get(manga.source) as? HttpSource
-                    ?: return@concatMap Observable.empty<LibraryManga>()
+            .doOnNext {
+                notifier.showProgressNotification(it, count++, mangaToUpdate.size)
+            }
+            .flatMap { manga ->
+                val source = sourceManager.get(manga.source)
+                    ?: return@flatMap Observable.empty<LibraryManga>()

                source.fetchMangaDetails(manga)
                    .map { networkManga ->
-                        manga.copyFrom(networkManga)
-                        db.insertManga(manga).executeAsBlocking()
+                        manga.prepUpdateCover(coverCache, networkManga, true)
+                        networkManga.thumbnail_url?.let {
+                            manga.thumbnail_url = it
+                            db.insertManga(manga).executeAsBlocking()
+                        }
                        manga
                    }
                    .onErrorReturn { manga }
            }
            .doOnCompleted {
-                cancelProgressNotification()
+                notifier.cancelProgressNotification()
            }
    }

@ -430,7 +401,7 @@ class LibraryUpdateService(
        // Emit each manga and update it sequentially.
        return Observable.from(mangaToUpdate)
            // Notify manga that will update.
-            .doOnNext { showProgressNotification(it, count++, mangaToUpdate.size) }
+            .doOnNext { notifier.showProgressNotification(it, count++, mangaToUpdate.size) }
            // Update the tracking details.
            .concatMap { manga ->
                val tracks = db.getTracks(manga).executeAsBlocking()
@ -449,207 +420,29 @@ class LibraryUpdateService(
                    .map { manga }
            }
            .doOnCompleted {
-                cancelProgressNotification()
+                notifier.cancelProgressNotification()
            }
    }

    /**
-     * Shows the notification containing the currently updating manga and the progress.
-     *
-     * @param manga the manga that's being updated.
-     * @param current the current progress.
-     * @param total the total progress.
+     * Writes basic file of update errors to cache dir.
     */
-    private fun showProgressNotification(manga: Manga, current: Int, total: Int) {
-        val title = if (preferences.hideNotificationContent()) {
-            getString(R.string.notification_check_updates)
-        } else {
-            manga.title
-        }
+    private fun writeErrorFile(errors: List<Pair<Manga, String?>>): File {
+        try {
+            if (errors.isNotEmpty()) {
+                val destFile = File(externalCacheDir, "tachiyomi_update_errors.txt")

-        notificationManager.notify(
-            Notifications.ID_LIBRARY_PROGRESS,
-            progressNotificationBuilder
-                .setContentTitle(title)
-                .setProgress(total, current, false)
-                .build()
-        )
-    }
-
-    /**
-     * Shows the notification containing the result of the update done by the service.
-     *
-     * @param updates a list of manga with new updates.
-     */
-    private fun showUpdateNotifications(updates: List<Pair<Manga, Array<Chapter>>>) {
-        if (updates.isEmpty()) {
-            return
-        }
-
-        NotificationManagerCompat.from(this).apply {
-            // Parent group notification
-            notify(
-                Notifications.ID_NEW_CHAPTERS,
-                notification(Notifications.CHANNEL_NEW_CHAPTERS) {
-                    setContentTitle(getString(R.string.notification_new_chapters))
-                    if (updates.size == 1 && !preferences.hideNotificationContent()) {
-                        setContentText(updates.first().first.title.chop(NOTIF_TITLE_MAX_LEN))
-                    } else {
-                        setContentText(resources.getQuantityString(R.plurals.notification_new_chapters_summary, updates.size, updates.size))
-
-                        if (!preferences.hideNotificationContent()) {
-                            setStyle(
-                                NotificationCompat.BigTextStyle().bigText(
-                                    updates.joinToString("\n") {
-                                        it.first.title.chop(NOTIF_TITLE_MAX_LEN)
-                                    }
-                                )
-                            )
-                        }
+                destFile.bufferedWriter().use { out ->
+                    errors.forEach { (manga, error) ->
+                        val source = sourceManager.getOrStub(manga.source)
+                        out.write("${manga.title} ($source): $error\n")
                    }
-
-                    setSmallIcon(R.drawable.ic_tachi)
-                    setLargeIcon(notificationBitmap)
-
-                    setGroup(Notifications.GROUP_NEW_CHAPTERS)
-                    setGroupAlertBehavior(GROUP_ALERT_SUMMARY)
-                    setGroupSummary(true)
-                    priority = NotificationCompat.PRIORITY_HIGH
-
-                    setContentIntent(getNotificationIntent())
-                    setAutoCancel(true)
-                }
-            )
-
-            // Per-manga notification
-            if (!preferences.hideNotificationContent()) {
-                updates.forEach {
-                    val (manga, chapters) = it
-                    notify(manga.id.hashCode(), createNewChaptersNotification(manga, chapters))
                }
+                return destFile
            }
-        }
-    }
-
-    private fun createNewChaptersNotification(manga: Manga, chapters: Array<Chapter>): Notification {
-        return notification(Notifications.CHANNEL_NEW_CHAPTERS) {
-            setContentTitle(manga.title)
-
-            val description = getNewChaptersDescription(chapters)
-            setContentText(description)
-            setStyle(NotificationCompat.BigTextStyle().bigText(description))
-
-            setSmallIcon(R.drawable.ic_tachi)
-
-            val icon = getMangaIcon(manga)
-            if (icon != null) {
-                setLargeIcon(icon)
-            }
-
-            setGroup(Notifications.GROUP_NEW_CHAPTERS)
-            setGroupAlertBehavior(GROUP_ALERT_SUMMARY)
-            priority = NotificationCompat.PRIORITY_HIGH
-
-            // Open first chapter on tap
-            setContentIntent(NotificationReceiver.openChapterPendingActivity(this@LibraryUpdateService, manga, chapters.first()))
-            setAutoCancel(true)
-
-            // Mark chapters as read action
-            addAction(
-                R.drawable.ic_glasses_black_24dp, getString(R.string.action_mark_as_read),
-                NotificationReceiver.markAsReadPendingBroadcast(
-                    this@LibraryUpdateService,
-                    manga, chapters, Notifications.ID_NEW_CHAPTERS
-                )
-            )
-            // View chapters action
-            addAction(
-                R.drawable.ic_book_24dp, getString(R.string.action_view_chapters),
-                NotificationReceiver.openChapterPendingActivity(
-                    this@LibraryUpdateService,
-                    manga, Notifications.ID_NEW_CHAPTERS
-                )
-            )
-        }
-    }
-
-    /**
-     * Cancels the progress notification.
-     */
-    private fun cancelProgressNotification() {
-        notificationManager.cancel(Notifications.ID_LIBRARY_PROGRESS)
-    }
-
-    private fun getMangaIcon(manga: Manga): Bitmap? {
-        return try {
-            Glide.with(this)
-                .asBitmap()
-                .load(manga.toMangaThumbnail())
-                .dontTransform()
-                .centerCrop()
-                .circleCrop()
-                .override(NOTIF_ICON_SIZE, NOTIF_ICON_SIZE)
-                .submit()
-                .get()
        } catch (e: Exception) {
-            null
+            // Empty
        }
-    }
-
-    private fun getNewChaptersDescription(chapters: Array<Chapter>): String {
-        val formatter = DecimalFormat(
-            "#.###",
-            DecimalFormatSymbols()
-                .apply { decimalSeparator = '.' }
-        )
-
-        val displayableChapterNumbers = chapters
-            .filter { it.isRecognizedNumber }
-            .sortedBy { it.chapter_number }
-            .map { formatter.format(it.chapter_number) }
-            .toSet()
-
-        return when (displayableChapterNumbers.size) {
-            // No sensible chapter numbers to show (i.e. no chapters have parsed chapter number)
-            0 -> {
-                // "1 new chapter" or "5 new chapters"
-                resources.getQuantityString(R.plurals.notification_chapters_generic, chapters.size, chapters.size)
-            }
-            // Only 1 chapter has a parsed chapter number
-            1 -> {
-                val remaining = chapters.size - displayableChapterNumbers.size
-                if (remaining == 0) {
-                    // "Chapter 2.5"
-                    resources.getString(R.string.notification_chapters_single, displayableChapterNumbers.first())
-                } else {
-                    // "Chapter 2.5 and 10 more"
-                    resources.getString(R.string.notification_chapters_single_and_more, displayableChapterNumbers.first(), remaining)
-                }
-            }
-            // Everything else (i.e. multiple parsed chapter numbers)
-            else -> {
-                val shouldTruncate = displayableChapterNumbers.size > NOTIF_MAX_CHAPTERS
-                if (shouldTruncate) {
-                    // "Chapters 1, 2.5, 3, 4, 5 and 10 more"
-                    val remaining = displayableChapterNumbers.size - NOTIF_MAX_CHAPTERS
-                    val joinedChapterNumbers = displayableChapterNumbers.take(NOTIF_MAX_CHAPTERS).joinToString(", ")
-                    resources.getQuantityString(R.plurals.notification_chapters_multiple_and_more, remaining, joinedChapterNumbers, remaining)
-                } else {
-                    // "Chapters 1, 2.5, 3"
-                    resources.getString(R.string.notification_chapters_multiple, displayableChapterNumbers.joinToString(", "))
-                }
-            }
-        }
-    }
-
-    /**
-     * Returns an intent to open the main activity.
-     */
-    private fun getNotificationIntent(): PendingIntent {
-        val intent = Intent(this, MainActivity::class.java).apply {
-            flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
-            action = MainActivity.SHORTCUT_RECENTLY_UPDATED
-        }
-        return PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
+        return File("")
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/notification/NotificationReceiver.kt
@ -7,7 +7,6 @@ import android.content.Intent
 import android.net.Uri
 import android.os.Build
 import android.os.Handler
-import eu.kanade.tachiyomi.BuildConfig.APPLICATION_ID as ID
 import eu.kanade.tachiyomi.R
 import eu.kanade.tachiyomi.data.backup.BackupRestoreService
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
@ -26,10 +25,11 @@ import eu.kanade.tachiyomi.util.storage.DiskUtil
 import eu.kanade.tachiyomi.util.storage.getUriCompat
 import eu.kanade.tachiyomi.util.system.notificationManager
 import eu.kanade.tachiyomi.util.system.toast
-import java.io.File
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import uy.kohesive.injekt.injectLazy
+import java.io.File
+import eu.kanade.tachiyomi.BuildConfig.APPLICATION_ID as ID

 /**
 * Global [BroadcastReceiver] that runs on UI thread
@ -56,19 +56,22 @@ class NotificationReceiver : BroadcastReceiver() {
            // Launch share activity and dismiss notification
            ACTION_SHARE_IMAGE ->
                shareImage(
-                    context, intent.getStringExtra(EXTRA_FILE_LOCATION),
+                    context,
+                    intent.getStringExtra(EXTRA_FILE_LOCATION),
                    intent.getIntExtra(EXTRA_NOTIFICATION_ID, -1)
                )
            // Delete image from path and dismiss notification
            ACTION_DELETE_IMAGE ->
                deleteImage(
-                    context, intent.getStringExtra(EXTRA_FILE_LOCATION),
+                    context,
+                    intent.getStringExtra(EXTRA_FILE_LOCATION),
                    intent.getIntExtra(EXTRA_NOTIFICATION_ID, -1)
                )
            // Share backup file
            ACTION_SHARE_BACKUP ->
                shareBackup(
-                    context, intent.getParcelableExtra(EXTRA_URI),
+                    context,
+                    intent.getParcelableExtra(EXTRA_URI),
                    intent.getIntExtra(EXTRA_NOTIFICATION_ID, -1)
                )
            ACTION_CANCEL_RESTORE -> cancelRestore(
@ -80,7 +83,8 @@ class NotificationReceiver : BroadcastReceiver() {
            // Open reader activity
            ACTION_OPEN_CHAPTER -> {
                openChapter(
-                    context, intent.getLongExtra(EXTRA_MANGA_ID, -1),
+                    context,
+                    intent.getLongExtra(EXTRA_MANGA_ID, -1),
                    intent.getLongExtra(EXTRA_CHAPTER_ID, -1)
                )
            }
@ -155,7 +159,7 @@ class NotificationReceiver : BroadcastReceiver() {
     * @param mangaId id of manga
     * @param chapterId id of chapter
     */
-    internal fun openChapter(context: Context, mangaId: Long, chapterId: Long) {
+    private fun openChapter(context: Context, mangaId: Long, chapterId: Long) {
        val db = DatabaseHelper(context)
        val manga = db.getManga(mangaId).executeAsBlocking()
        val chapter = db.getChapter(chapterId).executeAsBlocking()
--- a/Show More
+++ b/Show More