Release v0.12.0

Remove janky tracker icon UI
Fix RTL support
2025-06-26 19:17:51 +02:00 · 2021-08-06 15:37:42 -04:00 · 2021-08-06 14:55:45 -04:00 · 2021-08-06 14:50:51 -04:00 · 2021-08-06 14:43:33 -04:00 · 2021-08-06 14:22:04 -04:00
782 changed files with 25922 additions and 16324 deletions
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@ -1,33 +0,0 @@
-1. **Before reporting a new issue, take a look at the [FAQ](https://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://tachiyomi.org/help/contribution/#translation)
-4. After following 1. and 3. you can [open your issue](https://github.com/inorichi/tachiyomi/issues/new)
-
-***
-
-# Catalogue requests
-
-* Catalogue requests should be created at https://github.com/inorichi/tachiyomi-extensions#readme, not here
-
-# Bugs
-* Include version (More > About > Version)
- * If not latest, try updating, it may have already been solved
- * Preview version is equal to the number of commits as seen in the main page
-* Include steps to reproduce (if not obvious from description)
-* Include screenshot (if needed)
-* If it could be device-dependent, try reproducing on another device (if possible)
-* For large logs use http://pastebin.com/ (or similar)
-* Don't group unrelated requests into one issue
-
-DO: https://github.com/inorichi/tachiyomi/issues/24 https://github.com/inorichi/tachiyomi/issues/71
-
-DON'T: https://github.com/inorichi/tachiyomi/issues/75
-
-# Feature requests
-
-* Write a detailed issue, explaining what it should do or how. Avoid writing just "like X app does"
-* Include screenshot (if needed)
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@ -1,2 +1 @@
-github: inorichi
 ko_fi: inorichi
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@ -2,9 +2,15 @@

 I acknowledge that:

- I have updated to the latest version of the app (stable is v0.10.7)
- 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
+- I have updated:
+  - To the latest version of the app (stable is v0.11.1)
+  - All extensions
+- I have tried the troubleshooting guide: https://tachiyomi.org/help/guides/troubleshooting-problems/
+- If this is an issue with an extension, that I should be opening an issue in https://github.com/tachiyomiorg/tachiyomi-extensions
+- I have searched the existing issues and this is new ticket **NOT** a duplicate or related to another open issue
+- I will fill out the title and the information in this template
+
+Note that the issue will be automatically closed if you do not fill out the title or requested information.

 **DELETE THIS SECTION IF YOU HAVE READ AND ACKNOWLEDGED IT**

@ -24,3 +30,5 @@ I acknowledge that:

 ## Other details
 Additional details and attachments.
+
+If you're experiencing crashes, share the crash logs from More → Settings → Advanced → Dump crash logs.
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -1,36 +0,0 @@
---
-name: "🐞 Bug report"
-about: Report a bug
-title: "[Bug] <Write short description here>"
-labels: "bug"
---
-
-**PLEASE READ THIS**
-
-I acknowledge that:
-
- I have updated to the latest version of the app (stable is v0.10.7)
- 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
-
-**DELETE THIS SECTION IF YOU HAVE READ AND ACKNOWLEDGED IT**
-
---
-
-## Device information
-* Tachiyomi version: ?
-* Android version: ?
-* Device: ?
-
-## Steps to reproduce
-1. First step
-2. Second step
-
-### Expected behavior
-This should happen.
-
-### Actual behavior
-This happened instead.
-
-## Other details
-Additional details and attachments.
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -1,8 +1,11 @@
 blank_issues_enabled: false
 contact_links:
-  - name: Tachiyomi help website
+  - name: ⚠️ Extension/source issue
+    url: https://github.com/tachiyomiorg/tachiyomi-extensions/issues/new/choose
+    about: Issues and requests for extensions and sources should be opened in the tachiyomi-extensions repository instead
+  - name: 📦 Tachiyomi extensions
+    url: https://tachiyomi.org/extensions
+    about: List of all available extensions with download links
+  - name: 🖥️ Tachiyomi website
    url: https://tachiyomi.org/help/
-    about: 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.
+    about: Guides, troubleshooting, and answers to common questions
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@ -1,24 +0,0 @@
---
-name: "🌟 Feature request"
-about: Suggest a feature to improve Tachiyomi
-title: "[Feature Request] <Write short description here>"
-labels: "feature"
---
-
-**PLEASE READ THIS**
-
-I acknowledge that:
-
- I have updated to the latest version of the app (stable is v0.10.7)
- 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
-
-**DELETE THIS SECTION IF YOU HAVE READ AND ACKNOWLEDGED IT**
-
---
-
-## Why/User Benefit/User Problem
-(explain why this feature should be added)
-
-## What/Requirements
-(explain how this feature would behave)
--- a/.github/ISSUE_TEMPLATE/report_issue.yml
+++ b/.github/ISSUE_TEMPLATE/report_issue.yml
@ -0,0 +1,106 @@
+name: 🐞 Issue report
+description: Report an issue in Tachiyomi
+labels: [Bug]
+body:
+
+  - type: checkboxes
+    id: acknowledgements
+    attributes:
+      label: Acknowledgements
+      description: Read this carefully, we will close and ignore your issue if you skimmed through this.
+      options:
+        - label: I have searched the existing issues and this is a new ticket, **NOT** a duplicate or related to another open issue.
+          required: true
+        - label: I have written a short but informative title.
+          required: true
+        - label: If this is an issue with an extension, I should be opening an issue in the [extensions repository](https://github.com/tachiyomiorg/tachiyomi-extensions/issues/new/choose).
+          required: true
+        - label: I have tried the [troubleshooting guide](https://tachiyomi.org/help/guides/troubleshooting/).
+          required: true
+        - label: I have updated the app to version **[0.11.1](https://github.com/tachiyomiorg/tachiyomi/releases/tag/v0.11.1)**.
+          required: true
+        - label: I have updated all installed extensions.
+          required: true
+        - label: I will fill out all of the requested information in this form.
+          required: true
+
+  - type: input
+    id: tachiyomi-version
+    attributes:
+      label: Tachiyomi version
+      description: You can find your Tachiyomi version in **More → About**.
+      placeholder: |
+        Example: "0.11.1"
+    validations:
+      required: true
+
+  - type: input
+    id: android-version
+    attributes:
+      label: Android version
+      description: You can find this somewhere in your Android settings.
+      placeholder: |
+        Example: "Android 11"
+    validations:
+      required: true
+
+  - type: input
+    id: device
+    attributes:
+      label: Device
+      description: List your device and model.
+      placeholder: |
+        Example: "Google Pixel 5"
+    validations:
+      required: true
+
+  - type: textarea
+    id: reproduce-steps
+    attributes:
+      label: Steps to reproduce
+      description: Provide an example of the issue.
+      placeholder: |
+        Example:
+          1. First step
+          2. Second step
+          3. Issue here
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected behavior
+      description: Explain what you should expect to happen.
+      placeholder: |
+        Example:
+          "This should happen..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: actual-behavior
+    attributes:
+      label: Actual behavior
+      description: Explain what actually happens.
+      placeholder: |
+        Example: 
+          "This happened instead..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: crash-logs
+    attributes:
+      label: Crash logs
+      description: |
+        If you're experiencing crashes, share the crash logs from **More → Settings → Advanced** then press **Dump crash logs**.
+      placeholder: |
+        You can paste the crash logs in pure text or upload it as an attachment.
+
+  - type: textarea
+    id: other-details
+    attributes:
+      label: Other details
+      placeholder: |
+        Additional details and attachments.
--- a/.github/ISSUE_TEMPLATE/request_feature.yml
+++ b/.github/ISSUE_TEMPLATE/request_feature.yml
@ -0,0 +1,39 @@
+name: ⭐ Feature request
+description: Suggest a feature to improve Tachiyomi
+labels: [Feature request]
+body:
+
+  - type: checkboxes
+    id: acknowledgements
+    attributes:
+      label: Acknowledgements
+      description: Read this carefully, we will close and ignore your issue if you skimmed through this.
+      options:
+        - label: I have searched the existing issues and this is a new ticket, **NOT** a duplicate or related to another open issue.
+          required: true
+        - label: I have written a short but informative title.
+          required: true
+        - label: If this is an issue with an extension, I should be opening an issue in the [extensions repository](https://github.com/tachiyomiorg/tachiyomi-extensions/issues/new/choose).
+          required: true
+        - label: I have updated the app to version **[0.11.1](https://github.com/tachiyomiorg/tachiyomi/releases/tag/v0.11.1)**.
+          required: true
+        - label: I will fill out all of the requested information in this form.
+          required: true
+
+  - type: textarea
+    id: feature-description
+    attributes:
+      label: Describe your suggested feature
+      description: How can Tachiyomi be improved?
+      placeholder: |
+        Example:
+          "It should work like this..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: other-details
+    attributes:
+      label: Other details
+      placeholder: |
+        Additional details and attachments.
--- a/.github/ISSUE_TEMPLATE/source_issue.md
+++ b/.github/ISSUE_TEMPLATE/source_issue.md
@ -1,8 +0,0 @@
---
-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, invalid"
---
-
-DO NOT OPEN AN ISSUE IN THIS REPO. SEE https://github.com/inorichi/tachiyomi-extensions
--- a/.github/readme-images/screens.png
+++ b/.github/readme-images/screens.png
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@ -2,7 +2,7 @@ name: CI
 on:
  push:
    branches:
-      - dev
+      - master
    tags:
      - v*
  pull_request:
@ -22,7 +22,6 @@ jobs:
  build:
    name: Build app
    needs: check_wrapper
-    if: "!startsWith(github.event.head_commit.message, '[SKIP CI]')"
    runs-on: ubuntu-latest

    steps:
@ -34,10 +33,10 @@ jobs:
      - name: Clone repo
        uses: actions/checkout@v2

-      - name: Set up JDK 1.8
+      - name: Set up JDK 11
        uses: actions/setup-java@v1
        with:
-          java-version: 1.8
+          java-version: 11

      - name: Copy CI gradle.properties
        run: |
@ -55,14 +54,16 @@ jobs:
      # Sign APK and create release for tags

      - name: Get tag name
-        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'inorichi/tachiyomi'
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'tachiyomiorg/tachiyomi'
        id: get_tag_name
        run: |
          set -x
          echo "VERSION_TAG=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV

+      # TODO: need to support multiple APKs
+
      - name: Sign APK
-        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'inorichi/tachiyomi'
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'tachiyomiorg/tachiyomi'
        uses: r0adkll/sign-android-release@v1
        with:
          releaseDirectory: app/build/outputs/apk/standard/release
@ -71,25 +72,24 @@ jobs:
          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 }}
+      - name: Clean up build artifacts
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'tachiyomiorg/tachiyomi'
+        run: |
+          cp ${{ env.SIGNED_RELEASE_FILE }} tachiyomi-${{ env.VERSION_TAG }}.apk
+          md5=`md5sum tachiyomi-${{ env.VERSION_TAG }}.apk | awk '{ print $1 }'`
+          echo "APK_MD5=$md5" >> $GITHUB_ENV
+
+      - name: Create Release
+        if: startsWith(github.ref, 'refs/tags/') && github.repository == 'tachiyomiorg/tachiyomi'
+        uses: softprops/action-gh-release@v1
        with:
          tag_name: ${{ env.VERSION_TAG }}
-          release_name: Tachiyomi ${{ env.VERSION_TAG }}
+          name: Tachiyomi ${{ env.VERSION_TAG }}
+          body: |
+            MD5: ${{ env.APK_MD5 }}
+          files: |
+            tachiyomi-${{ env.VERSION_TAG }}.apk
          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
@ -7,31 +7,26 @@ jobs:
  autoclose:
    runs-on: ubuntu-latest
    steps:
-    - name: Autoclose when created in wrong repo
-      uses: arkon/issue-closer-action@v1.1
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        type: title
-        regex: ".*THIS ISSUE IS IN THE WRONG REPO.*"
-        message: "@${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."
+      - name: Autoclose issues
+        uses: arkon/issue-closer-action@v3.4
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          rules: |
+            [
+              {
+                "type": "body",
+                "regex": ".*DELETE THIS SECTION IF YOU HAVE READ AND ACKNOWLEDGED IT.*",
+                "message": "The acknowledgment section was not removed."
+              },
+              {
+                "type": "body",
+                "regex": ".*\\* (Tachiyomi version|Android version|Device): \\?.*",
+                "message": "Requested information in the template was not filled out."
+              },
+              {
+                "type": "both",
+                "regex": ".*(aniyomi|anime).*",
+                "ignoreCase": true,
+                "message": "Tachiyomi does not support anime, and has no plans to support anime. In addition Tachiyomi is not affiliated with Aniyomi https://github.com/jmir1/aniyomi"
+              }
+            ]
--- a/.github/workflows/issue_moderator.yml
+++ b/.github/workflows/issue_moderator.yml
@ -0,0 +1,14 @@
+name: Issue moderator
+
+on:
+  issue_comment:
+    types: [created]
+
+jobs:
+  moderate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Moderate issues
+        uses: tachiyomiorg/issue-moderator-action@v1.1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/lock.yml
+++ b/.github/workflows/lock.yml
@ -0,0 +1,19 @@
+name: Lock threads
+
+on:
+  # Daily
+  schedule:
+    - cron: '0 * * * *'
+  # Manual trigger
+  workflow_dispatch:
+    inputs:
+
+jobs:
+  lock:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: dessant/lock-threads@v2
+        with:
+          github-token: ${{ github.token }}
+          issue-lock-inactive-days: '2'
+          pr-lock-inactive-days: '2'
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@ -0,0 +1,76 @@
+# Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at the Tachiyomi [Discord server](https://discord.gg/tachiyomi). All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -0,0 +1,34 @@
+Looking to report an issue/bug or make a feature request? Please refer to the [README file](https://github.com/tachiyomiorg/tachiyomi#issues-feature-requests-and-contributing).
+
+---
+
+Thanks for your interest in contributing to Tachiyomi!
+
+
+# Code contributions
+
+Pull requests are welcome!
+
+If you're interested in taking on [an open issue](https://github.com/tachiyomiorg/tachiyomi/issues), please comment on it so others are aware.
+
+
+# Translations
+
+Translations are done externally via Weblate. See [our website](https://tachiyomi.org/help/contribution/#translation) for more details.
+
+
+# Forks
+
+Forks are allowed so long as they abide by [the project's LICENSE](https://github.com/tachiyomiorg/tachiyomi/blob/master/LICENSE).
+
+When creating a fork, remember to:
+
+- To avoid confusion with the main app:
+    - Change the app name
+    - Change the app icon
+    - Change or disable the [app update checker](https://github.com/tachiyomiorg/tachiyomi/blob/master/app/src/main/java/eu/kanade/tachiyomi/data/updater/GithubUpdateChecker.kt)
+- To avoid installation conflicts:
+    - Change the `applicationId` in [`build.gradle.kts`](https://github.com/tachiyomiorg/tachiyomi/blob/master/app/build.gradle.kts)
+- To avoid having your data polluting the main app's analytics and crash report services:
+    - If you want to use Firebase analytics, replace [`google-services.json`](https://github.com/tachiyomiorg/tachiyomi/blob/master/app/src/standard/google-services.json) with your own
+    - If you want to use ACRA crash reporting, replace the `ACRA_URI` endpoint in [`build.gradle.kts`](https://github.com/tachiyomiorg/tachiyomi/blob/master/app/build.gradle.kts) with your own
--- a/26
+++ b/26
@ -174,29 +174,3 @@
      of your accepting any such warranty or additional liability.

   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "{}"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
-
-   Copyright {yyyy} {name of copyright owner}
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-
--- a/PREVIEW_RELEASE_NOTES.md
+++ b/PREVIEW_RELEASE_NOTES.md
@ -1,28 +0,0 @@
-### 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
@ -1,29 +1,29 @@
 | Build | Stable | Weekly Preview | Contribute | Support Server |
 |-------|----------|---------|------------|---------|
-| ![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) |
+| ![CI](https://github.com/tachiyomiorg/tachiyomi/workflows/CI/badge.svg?branch=dev&event=push) | [![stable release](https://img.shields.io/github/release/tachiyomiorg/tachiyomi.svg?maxAge=3600&label=download)](https://github.com/tachiyomiorg/tachiyomi/releases) | [![latest preview build](https://img.shields.io/github/v/release/tachiyomiorg/tachiyomi-preview.svg?maxAge=3600&label=download)](https://github.com/tachiyomiorg/tachiyomi-preview/releases) | [![Translation status](https://hosted.weblate.org/widgets/tachiyomi/-/svg-badge.svg)](https://hosted.weblate.org/engage/tachiyomi/?utm_source=widget) | [![Discord](https://img.shields.io/discord/349436576037732353.svg?label=discord&labelColor=7289da&color=2c2f33&style=flat)](https://discord.gg/tachiyomi) |


 # ![app icon](./.github/readme-images/app-icon.png)Tachiyomi
-Tachiyomi is a free and open source manga reader for Android 5.0 and above.
+Tachiyomi is a free and open source manga reader for Android 6.0 and above.

 ![screenshots of app](./.github/readme-images/screens.png)

 ## Features

 Features include:
-* Online reading from sources such as MangaDex, MangaSee, Mangakakalot, [and more](https://github.com/inorichi/tachiyomi-extensions)
-* Local reading of downloaded manga
+* Online reading from a variety of sources
+* Local reading of downloaded content
 * A configurable reader with multiple viewers, reading directions and other settings.
-* [MyAnimeList](https://myanimelist.net/), [AniList](https://anilist.co/), [Kitsu](https://kitsu.io/), [Shikimori](https://shikimori.one), and [Bangumi](https://bgm.tv/) support
+* Tracker support: [MyAnimeList](https://myanimelist.net/), [AniList](https://anilist.co/), [Kitsu](https://kitsu.io/), [Shikimori](https://shikimori.one), and [Bangumi](https://bgm.tv/)
 * Categories to organize your library
 * Light and dark themes
 * Schedule updating your library for new chapters
 * Create backups locally to read offline or to your desired cloud service

 ## Download
-Get the app from our [releases page](https://github.com/inorichi/tachiyomi/releases).
+Get the app from our [releases page](https://github.com/tachiyomiorg/tachiyomi/releases).

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

 ## Issues, Feature Requests and Contributing

@ -31,7 +31,7 @@ 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://tachiyomi.org/help/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/tachiyomiorg/tachiyomi/releases) and the already opened [issues](https://github.com/tachiyomiorg/tachiyomi/issues).**
 2. If you are unsure, ask here: [![Discord](https://img.shields.io/discord/349436576037732353.svg)](https://discord.gg/tachiyomi)

 </details>
@ -44,12 +44,11 @@ Please make sure to read the full guidelines. Your issue may be closed without w
 * Include steps to reproduce (if not obvious from description)
 * Include screenshot (if needed)
 * If it could be device-dependent, try reproducing on another device (if possible)
-* For large logs use http://pastebin.com/ (or similar)
 * Don't group unrelated requests into one issue

-DO: https://github.com/inorichi/tachiyomi/issues/24 https://github.com/inorichi/tachiyomi/issues/71
+DO: https://github.com/tachiyomiorg/tachiyomi/issues/24 https://github.com/tachiyomiorg/tachiyomi/issues/71

-DON'T: https://github.com/inorichi/tachiyomi/issues/75
+DON'T: https://github.com/tachiyomiorg/tachiyomi/issues/75

 </details>

@ -58,7 +57,17 @@ DON'T: https://github.com/inorichi/tachiyomi/issues/75
 * Write a detailed issue, explaining what it should do or how. Avoid writing just "like X app does"
 * Include screenshot (if needed)

-Source requests should be created at https://github.com/inorichi/tachiyomi-extensions, they do not belong in this repository.
+Source requests should be created at https://github.com/tachiyomiorg/tachiyomi-extensions, they do not belong in this repository.
+</details>
+
+<details><summary>Contributing</summary>
+
+See [CONTRIBUTING.md](./CONTRIBUTING.md).
+</details>
+
+<details><summary>Code of Conduct</summary>
+
+See [CODE_OF_CONDUCT.md](./CODE_OF_CONDUCT.md).
 </details>

 ## FAQ
--- a/app/build.gradle
+++ b/app/build.gradle
@ -1,323 +0,0 @@
-import org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile
-
-import java.text.SimpleDateFormat
-
-apply plugin: 'com.android.application'
-apply plugin: 'com.mikepenz.aboutlibraries.plugin'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlin-kapt'
-apply plugin: 'kotlin-parcelize'
-apply plugin: 'kotlinx-serialization'
-apply plugin: 'com.github.zellius.shortcut-helper'
-
-shortcutHelper.filePath = './shortcuts.xml'
-
-ext {
-    // Git is needed in your system PATH for these commands to work.
-    // If it's not installed, you can return a random value as a workaround
-    getCommitCount = {
-        return 'git rev-list --count HEAD'.execute().text.trim()
-        // return "1"
-    }
-
-    getGitSha = {
-        return 'git rev-parse --short HEAD'.execute().text.trim()
-        // return "1"
-    }
-
-    getBuildTime = {
-        def df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'")
-        df.setTimeZone(TimeZone.getTimeZone("UTC"))
-        return df.format(new Date())
-    }
-}
-
-android {
-    compileSdkVersion AndroidConfig.compileSdk
-    buildToolsVersion AndroidConfig.buildTools
-    ndkVersion AndroidConfig.ndk
-
-    defaultConfig {
-        applicationId "eu.kanade.tachiyomi"
-        minSdkVersion AndroidConfig.minSdk
-        targetSdkVersion AndroidConfig.targetSdk
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-        versionCode 53
-        versionName "0.10.7"
-
-        buildConfigField "String", "COMMIT_COUNT", "\"${getCommitCount()}\""
-        buildConfigField "String", "COMMIT_SHA", "\"${getGitSha()}\""
-        buildConfigField "String", "BUILD_TIME", "\"${getBuildTime()}\""
-        buildConfigField "boolean", "INCLUDE_UPDATER", "false"
-
-        multiDexEnabled true
-
-        ndk {
-            abiFilters "armeabi-v7a", "arm64-v8a", "x86"
-        }
-    }
-
-    buildFeatures {
-        viewBinding = true
-    }
-
-    buildTypes {
-        debug {
-            versionNameSuffix "-${getCommitCount()}"
-            applicationIdSuffix ".debug"
-        }
-        release {
-//            postprocessing {
-//                obfuscate false
-//                optimizeCode true
-//                removeUnusedCode false
-//                removeUnusedResources true
-//                proguardFiles 'proguard-rules.pro'
-//            }
-        }
-    }
-
-    flavorDimensions "default"
-
-    productFlavors {
-        standard {
-            buildConfigField "boolean", "INCLUDE_UPDATER", "true"
-            dimension "default"
-        }
-        fdroid {
-            dimension "default"
-        }
-        dev {
-            resConfigs "en", "xxhdpi"
-            dimension "default"
-        }
-    }
-
-    packagingOptions {
-        exclude 'META-INF/DEPENDENCIES'
-        exclude 'LICENSE.txt'
-        exclude 'META-INF/LICENSE'
-        exclude 'META-INF/LICENSE.txt'
-        exclude 'META-INF/NOTICE'
-    }
-
-    dependenciesInfo {
-        includeInApk = false
-    }
-
-    lintOptions {
-        disable 'MissingTranslation'
-        disable 'ExtraTranslation'
-
-        abortOnError false
-        checkReleaseBuilds false
-    }
-
-    compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_1_8
-        targetCompatibility = JavaVersion.VERSION_1_8
-    }
-
-    kotlinOptions {
-        jvmTarget = JavaVersion.VERSION_1_8.toString()
-    }
-}
-
-dependencies {
-
-    // Source models and interfaces from Tachiyomi 1.x
-    implementation 'tachiyomi.sourceapi:source-api:1.1'
-
-    // 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: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.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 = '2.3.0-beta01'
-    implementation "androidx.lifecycle:lifecycle-common-java8:$lifecycle_version"
-    implementation "androidx.lifecycle:lifecycle-process:$lifecycle_version"
-    implementation "androidx.lifecycle:lifecycle-runtime-ktx:$lifecycle_version"
-
-    // Job scheduling
-    implementation "androidx.work:work-runtime-ktx:2.5.0-beta02"
-
-    // UI library
-    implementation 'com.google.android.material:material:1.3.0-alpha04'
-
-    standardImplementation 'com.google.firebase:firebase-core:18.0.0'
-
-    // ReactiveX
-    implementation 'io.reactivex:rxandroid:1.2.1'
-    implementation 'io.reactivex:rxjava:1.3.8'
-    implementation 'com.jakewharton.rxrelay:rxrelay:1.2.0'
-    implementation 'com.github.pwittchen:reactivenetwork:0.13.0'
-
-    // Network client
-    final okhttp_version = '4.10.0-RC1'
-    implementation "com.squareup.okhttp3:okhttp:$okhttp_version"
-    implementation "com.squareup.okhttp3:logging-interceptor:$okhttp_version"
-    implementation "com.squareup.okhttp3:okhttp-dnsoverhttps:$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 = '2.9.0'
-    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:$kotlin_serialization_version"
-    implementation 'com.google.code.gson:gson:2.8.6'
-    implementation 'com.github.salomonbrys.kotson:kotson:2.5.0'
-
-    // JavaScript engine
-    implementation 'com.squareup.duktape:duktape-android:1.3.0'
-
-    // Disk
-    implementation 'com.jakewharton:disklrucache:2.0.2'
-    implementation 'com.github.inorichi:unifile:e9ee588'
-    implementation 'com.github.junrar:junrar:7.4.0'
-
-    // HTML parser
-    implementation 'org.jsoup:jsoup:1.13.1'
-
-    // Database
-    implementation 'androidx.sqlite:sqlite-ktx:2.1.0'
-    implementation 'com.github.inorichi.storio:storio-common:8be19de@aar'
-    implementation 'com.github.inorichi.storio:storio-sqlite:8be19de@aar'
-    implementation 'io.requery:sqlite-android:3.33.0'
-
-    // Preferences
-    implementation 'com.github.tfcporciuncula.flow-preferences:flow-preferences:1.3.3'
-
-    // Model View Presenter
-    final nucleus_version = '3.0.0'
-    implementation "info.android15.nucleus:nucleus:$nucleus_version"
-    implementation "info.android15.nucleus:nucleus-support-v7:$nucleus_version"
-
-    // Dependency injection
-    implementation "com.github.inorichi.injekt:injekt-core:65b0440"
-
-    // Image library
-    final glide_version = '4.11.0'
-    implementation "com.github.bumptech.glide:glide:$glide_version"
-    implementation "com.github.bumptech.glide:okhttp3-integration:$glide_version"
-    kapt "com.github.bumptech.glide:compiler:$glide_version"
-
-    implementation 'com.github.tachiyomiorg:subsampling-scale-image-view:6caf219'
-
-    // Logging
-    implementation 'com.jakewharton.timber:timber:4.7.1'
-
-    // Crash reports
-    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'
-    implementation 'com.github.dmytrodanylyk.android-process-button:library:1.0.4'
-    implementation 'eu.davidea:flexible-adapter:5.1.0'
-    implementation 'eu.davidea:flexible-adapter-ui:1.0.0'
-    implementation 'com.nightlynexus.viewstatepageradapter:viewstatepageradapter:1.1.0'
-    implementation 'com.github.chrisbanes:PhotoView:2.3.0'
-    implementation 'com.github.carlosesco:DirectionalViewPager:a844dbca0a'
-
-    // 3.2.0+ introduces weird UI blinking or cut off issues on some devices
-    final material_dialogs_version = '3.1.1'
-    implementation "com.afollestad.material-dialogs:core:$material_dialogs_version"
-    implementation "com.afollestad.material-dialogs:input:$material_dialogs_version"
-    implementation "com.afollestad.material-dialogs:datetime:$material_dialogs_version"
-
-    // Conductor
-    implementation 'com.bluelinelabs:conductor:2.1.5'
-    implementation("com.bluelinelabs:conductor-support:2.1.5") {
-        exclude group: "com.android.support"
-    }
-    implementation 'com.github.tachiyomiorg:conductor-support-preference:1.1.1'
-
-    // FlowBinding
-    final flowbinding_version = '0.12.0'
-    implementation "io.github.reactivecircus.flowbinding:flowbinding-android:$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:$BuildPluginsVersion.ABOUTLIB_PLUGIN"
-
-    // Tests
-    testImplementation 'junit:junit:4.13'
-    testImplementation 'org.assertj:assertj-core:3.16.1'
-    testImplementation 'org.mockito:mockito-core:1.10.19'
-
-    final robolectric_version = '3.1.4'
-    testImplementation "org.robolectric:robolectric:$robolectric_version"
-    testImplementation "org.robolectric:shadows-multidex:$robolectric_version"
-    testImplementation "org.robolectric:shadows-play-services:$robolectric_version"
-
-    implementation "org.jetbrains.kotlin:kotlin-reflect:$BuildPluginsVersion.KOTLIN"
-
-    final coroutines_version = '1.4.2'
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
-    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
-
-    // For detecting memory leaks; see https://square.github.io/leakcanary/
-//    debugImplementation 'com.squareup.leakcanary:leakcanary-android:2.4'
-}
-
-buildscript {
-    repositories {
-        mavenCentral()
-    }
-    dependencies {
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$BuildPluginsVersion.KOTLIN"
-    }
-}
-
-repositories {
-    mavenCentral()
-    jcenter()
-}
-
-// See https://kotlinlang.org/docs/reference/experimental.html#experimental-status-of-experimental-api-markers
-tasks.withType(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 copyHebrewStrings(type: Copy) {
-    from './src/main/res/values-he'
-    into './src/main/res/values-iw'
-    include '**/*'
-}
-
-preBuild.dependsOn(formatKotlin, copyHebrewStrings)
-
-if (getGradle().getStartParameter().getTaskRequests().toString().contains("Standard")) {
-    apply plugin: 'com.google.gms.google-services'
-}
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@ -0,0 +1,338 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+import java.io.ByteArrayOutputStream
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.TimeZone
+
+plugins {
+    id("com.android.application")
+    id("com.mikepenz.aboutlibraries.plugin")
+    kotlin("android")
+    kotlin("plugin.serialization")
+    id("com.github.zellius.shortcut-helper")
+}
+
+if (gradle.startParameter.taskRequests.toString().contains("Standard")) {
+    apply(plugin = "com.google.gms.google-services")
+}
+
+shortcutHelper.setFilePath("./shortcuts.xml")
+
+val SUPPORTED_ABIS = setOf("armeabi-v7a", "arm64-v8a", "x86")
+
+android {
+    compileSdk = AndroidConfig.compileSdk
+    ndkVersion = AndroidConfig.ndk
+
+    defaultConfig {
+        applicationId = "eu.kanade.tachiyomi"
+        minSdk = AndroidConfig.minSdk
+        targetSdk = AndroidConfig.targetSdk
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        versionCode = 66
+        versionName = "0.12.0"
+
+        buildConfigField("String", "COMMIT_COUNT", "\"${getCommitCount()}\"")
+        buildConfigField("String", "COMMIT_SHA", "\"${getGitSha()}\"")
+        buildConfigField("String", "BUILD_TIME", "\"${getBuildTime()}\"")
+        buildConfigField("boolean", "INCLUDE_UPDATER", "false")
+
+        // Please disable ACRA or use your own instance in forked versions of the project
+        buildConfigField("String", "ACRA_URI", "\"https://tachiyomi.kanade.eu/crash_report\"")
+
+        ndk {
+            abiFilters += SUPPORTED_ABIS
+        }
+    }
+
+    splits {
+        abi {
+            isEnable = false
+            reset()
+            include(*SUPPORTED_ABIS.toTypedArray())
+            isUniversalApk = true
+        }
+    }
+
+    buildTypes {
+        named("debug") {
+            versionNameSuffix = "-${getCommitCount()}"
+            applicationIdSuffix = ".debug"
+
+            isShrinkResources = true
+            isMinifyEnabled = true
+            proguardFiles("proguard-android-optimize.txt", "proguard-rules.pro")
+        }
+        create("debugFull") { // Debug without R8
+            initWith(getByName("debug"))
+            isShrinkResources = false
+            isMinifyEnabled = false
+        }
+        named("release") {
+            isShrinkResources = true
+            isMinifyEnabled = true
+            proguardFiles("proguard-android-optimize.txt", "proguard-rules.pro")
+        }
+    }
+
+    sourceSets {
+        getByName("debugFull").res.srcDirs("src/debug/res")
+    }
+
+    flavorDimensions("default")
+
+    productFlavors {
+        create("standard") {
+            buildConfigField("boolean", "INCLUDE_UPDATER", "true")
+            dimension = "default"
+        }
+        create("dev") {
+            resConfigs("en", "xxhdpi")
+            dimension = "default"
+        }
+    }
+
+    packagingOptions {
+        exclude("META-INF/DEPENDENCIES")
+        exclude("LICENSE.txt")
+        exclude("META-INF/LICENSE")
+        exclude("META-INF/LICENSE.txt")
+        exclude("META-INF/NOTICE")
+        exclude("META-INF/*.kotlin_module")
+    }
+
+    dependenciesInfo {
+        includeInApk = false
+    }
+
+    buildFeatures {
+        viewBinding = true
+    }
+
+    lint {
+        disable("MissingTranslation", "ExtraTranslation")
+        isAbortOnError = false
+        isCheckReleaseBuilds = false
+    }
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8.toString()
+    }
+}
+
+dependencies {
+
+    implementation(kotlin("reflect", version = BuildPluginsVersion.KOTLIN))
+
+    val coroutinesVersion = "1.5.1"
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutinesVersion")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutinesVersion")
+
+    // Source models and interfaces from Tachiyomi 1.x
+    implementation("org.tachiyomi:source-api:1.1")
+
+    // AndroidX libraries
+    implementation("androidx.annotation:annotation:1.3.0-alpha01")
+    implementation("androidx.appcompat:appcompat:1.4.0-alpha03")
+    implementation("androidx.biometric:biometric-ktx:1.2.0-alpha03")
+    implementation("androidx.browser:browser:1.3.0")
+    implementation("androidx.cardview:cardview:1.0.0")
+    implementation("androidx.constraintlayout:constraintlayout:2.1.0")
+    implementation("androidx.coordinatorlayout:coordinatorlayout:1.1.0")
+    implementation("androidx.core:core-ktx:1.7.0-alpha01")
+    implementation("androidx.core:core-splashscreen:1.0.0-alpha01")
+    implementation("androidx.preference:preference-ktx:1.1.1")
+    implementation("androidx.recyclerview:recyclerview:1.2.1")
+    implementation("androidx.swiperefreshlayout:swiperefreshlayout:1.2.0-alpha01")
+
+    val lifecycleVersion = "2.4.0-alpha01"
+    implementation("androidx.lifecycle:lifecycle-common-java8:$lifecycleVersion")
+    implementation("androidx.lifecycle:lifecycle-process:$lifecycleVersion")
+    implementation("androidx.lifecycle:lifecycle-runtime-ktx:$lifecycleVersion")
+
+    // Job scheduling
+    implementation("androidx.work:work-runtime-ktx:2.6.0-beta01")
+
+    // UI library
+    implementation("com.google.android.material:material:1.5.0-alpha01")
+
+    "standardImplementation"("com.google.firebase:firebase-core:19.0.0")
+
+    // ReactiveX
+    implementation("io.reactivex:rxandroid:1.2.1")
+    implementation("io.reactivex:rxjava:1.3.8")
+    implementation("com.jakewharton.rxrelay:rxrelay:1.2.0")
+    implementation("com.github.pwittchen:reactivenetwork:0.13.0")
+
+    // Network client
+    val okhttpVersion = "4.9.1"
+    implementation("com.squareup.okhttp3:okhttp:$okhttpVersion")
+    implementation("com.squareup.okhttp3:logging-interceptor:$okhttpVersion")
+    implementation("com.squareup.okhttp3:okhttp-dnsoverhttps:$okhttpVersion")
+    implementation("com.squareup.okio:okio:2.10.0")
+
+    // TLS 1.3 support for Android < 10
+    implementation("org.conscrypt:conscrypt-android:2.5.2")
+
+    // JSON
+    val kotlinSerializationVersion = "1.2.2"
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:$kotlinSerializationVersion")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-protobuf:$kotlinSerializationVersion")
+    implementation("com.google.code.gson:gson:2.8.7")
+    implementation("com.github.salomonbrys.kotson:kotson:2.5.0")
+
+    // JavaScript engine
+    implementation("com.squareup.duktape:duktape-android:1.3.0")
+
+    // Disk
+    implementation("com.jakewharton:disklrucache:2.0.2")
+    implementation("com.github.tachiyomiorg:unifile:17bec43")
+    implementation("com.github.junrar:junrar:7.4.0")
+
+    // HTML parser
+    implementation("org.jsoup:jsoup:1.14.1")
+
+    // Database
+    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("com.github.requery:sqlite-android:3.36.0")
+
+    // Preferences
+    implementation("com.github.tfcporciuncula.flow-preferences:flow-preferences:1.4.0")
+
+    // Model View Presenter
+    val nucleusVersion = "3.0.0"
+    implementation("info.android15.nucleus:nucleus:$nucleusVersion")
+    implementation("info.android15.nucleus:nucleus-support-v7:$nucleusVersion")
+
+    // Dependency injection
+    implementation("com.github.inorichi.injekt:injekt-core:65b0440")
+
+    // Image library
+    val coilVersion = "1.3.2"
+    implementation("io.coil-kt:coil:$coilVersion")
+    implementation("io.coil-kt:coil-gif:$coilVersion")
+
+    implementation("com.github.tachiyomiorg:subsampling-scale-image-view:846abe0") {
+        exclude(module = "image-decoder")
+    }
+    implementation("com.github.tachiyomiorg:image-decoder:7481a4a")
+
+    // Logging
+    implementation("com.jakewharton.timber:timber:4.7.1")
+
+    // Crash reports
+    implementation("ch.acra:acra-http:5.8.1")
+
+    // Sort
+    implementation("com.github.gpanther:java-nat-sort:natural-comparator-1.1")
+
+    // UI
+    implementation("com.github.dmytrodanylyk.android-process-button:library:1.0.4")
+    implementation("eu.davidea:flexible-adapter:5.1.0")
+    implementation("eu.davidea:flexible-adapter-ui:1.0.0")
+    implementation("com.nightlynexus.viewstatepageradapter:viewstatepageradapter:1.1.0")
+    implementation("com.github.chrisbanes:PhotoView:2.3.0")
+    implementation("com.github.tachiyomiorg:DirectionalViewPager:1.0.0")
+    implementation("dev.chrisbanes.insetter:insetter:0.6.0")
+
+    // Conductor
+    val conductorVersion = "3.0.0"
+    implementation("com.bluelinelabs:conductor:$conductorVersion")
+    implementation("com.bluelinelabs:conductor-viewpager:$conductorVersion")
+    implementation("com.github.tachiyomiorg:conductor-support-preference:$conductorVersion")
+
+    // FlowBinding
+    val flowbindingVersion = "1.2.0"
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-android:$flowbindingVersion")
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-appcompat:$flowbindingVersion")
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-recyclerview:$flowbindingVersion")
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-swiperefreshlayout:$flowbindingVersion")
+    implementation("io.github.reactivecircus.flowbinding:flowbinding-viewpager:$flowbindingVersion")
+
+    // Licenses
+    implementation("com.mikepenz:aboutlibraries:${BuildPluginsVersion.ABOUTLIB_PLUGIN}")
+
+    // Tests
+    testImplementation("junit:junit:4.13.2")
+    testImplementation("org.assertj:assertj-core:3.16.1")
+    testImplementation("org.mockito:mockito-core:1.10.19")
+
+    val robolectricVersion = "3.1.4"
+    testImplementation("org.robolectric:robolectric:$robolectricVersion")
+    testImplementation("org.robolectric:shadows-play-services:$robolectricVersion")
+
+    // For detecting memory leaks; see https://square.github.io/leakcanary/
+    // debugImplementation("com.squareup.leakcanary:leakcanary-android:2.7")
+}
+
+tasks {
+    // See https://kotlinlang.org/docs/reference/experimental.html#experimental-status-of-experimental-api(-markers)
+    withType<KotlinCompile> {
+        kotlinOptions.freeCompilerArgs += listOf(
+            "-Xopt-in=kotlin.Experimental",
+            "-Xopt-in=kotlin.RequiresOptIn",
+            "-Xuse-experimental=kotlin.ExperimentalStdlibApi",
+            "-Xuse-experimental=kotlinx.coroutines.FlowPreview",
+            "-Xuse-experimental=kotlinx.coroutines.ExperimentalCoroutinesApi",
+            "-Xuse-experimental=kotlinx.coroutines.InternalCoroutinesApi",
+            "-Xuse-experimental=kotlinx.serialization.ExperimentalSerializationApi",
+            "-Xuse-experimental=coil.annotation.ExperimentalCoilApi",
+        )
+    }
+
+    // Duplicating Hebrew string assets due to some locale code issues on different devices
+    val copyHebrewStrings = task("copyHebrewStrings", type = Copy::class) {
+        from("./src/main/res/values-he")
+        into("./src/main/res/values-iw")
+        include("**/*")
+    }
+
+    preBuild {
+        dependsOn(formatKotlin, copyHebrewStrings)
+    }
+}
+
+
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath(kotlin("gradle-plugin", version = BuildPluginsVersion.KOTLIN))
+    }
+}
+
+
+// Git is needed in your system PATH for these commands to work.
+// If it's not installed, you can return a random value as a workaround
+fun getCommitCount(): String {
+    return runCommand("git rev-list --count HEAD")
+    // return "1"
+}
+
+fun getGitSha(): String {
+    return runCommand("git rev-parse --short HEAD")
+    // return "1"
+}
+
+fun getBuildTime(): String {
+    val df = SimpleDateFormat("yyyy-MM-dd'T'HH:mm'Z'")
+    df.timeZone = TimeZone.getTimeZone("UTC")
+    return df.format(Date())
+}
+
+fun runCommand(command: String): String {
+    val byteOut = ByteArrayOutputStream()
+    project.exec {
+        commandLine = command.split(" ")
+        standardOutput = byteOut
+    }
+    return String(byteOut.toByteArray()).trim()
+}
--- a/app/proguard-android-optimize.txt
+++ b/app/proguard-android-optimize.txt
@ -0,0 +1,34 @@
+-allowaccessmodification
+-dontusemixedcaseclassnames
+-verbose
+
+-keepattributes *Annotation*
+
+-keepclasseswithmembernames,includedescriptorclasses class * {
+    native <methods>;
+}
+
+-keepclassmembers enum * {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
+
+-keepclassmembers class * implements android.os.Parcelable {
+  public static final ** CREATOR;
+}
+
+-keep class androidx.annotation.Keep
+
+-keep @androidx.annotation.Keep class * {*;}
+
+-keepclasseswithmembers class * {
+    @androidx.annotation.Keep <methods>;
+}
+
+-keepclasseswithmembers class * {
+    @androidx.annotation.Keep <fields>;
+}
+
+-keepclasseswithmembers class * {
+    @androidx.annotation.Keep <init>(...);
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@ -1,29 +1,20 @@
 -dontobfuscate

-# Extensions may require methods unused in the core app
-dontwarn eu.kanade.tachiyomi.**
-keep class eu.kanade.tachiyomi.** { public protected private *; }
+# Keep extension's common dependencies
+-keep,allowoptimization class eu.kanade.tachiyomi.** { public protected *; }
+-keep,allowoptimization class androidx.preference.** { *; }
+-keep,allowoptimization class kotlin.** { public protected *; }
+-keep,allowoptimization class kotlinx.coroutines.** { public protected *; }
+-keep,allowoptimization class okhttp3.** { public protected *; }
+-keep,allowoptimization class okio.** { public protected *; }
+-keep,allowoptimization class rx.** { public protected *; }
+-keep,allowoptimization class org.jsoup.** { public protected *; }
+-keep,allowoptimization class com.google.gson.** { public protected *; }
+-keep,allowoptimization class com.github.salomonbrys.kotson.** { public protected *; }
+-keep,allowoptimization class com.squareup.duktape.** { public protected *; }
+-keep,allowoptimization class uy.kohesive.injekt.** { public protected *; }

-keep class org.jsoup.** { *; }
-keep class kotlin.** { *; }
-keep class okhttp3.** { *; }
-keep class com.google.gson.** { *; }
-keep class com.github.salomonbrys.kotson.** { *; }
-keep class com.squareup.duktape.** { *; }
-
-# Design library
-dontwarn com.google.android.material.**
-keep class com.google.android.material.** { *; }
-keep interface com.google.android.material.** { *; }
-keep public class com.google.android.material.R$* { *; }
-
-keep class com.hippo.image.** { *; }
-keep interface com.hippo.image.** { *; }
-keepclassmembers class * extends nucleus.presenter.Presenter {
-    <init>();
-}
-
-# RxJava 1.1.0
+##---------------Begin: proguard configuration for RxJava 1.x  ----------
 -dontwarn sun.misc.**

 -keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* {
@ -39,30 +30,38 @@
    rx.internal.util.atomic.LinkedQueueNode consumerNode;
 }

-# ReactiveNetwork
-dontwarn com.github.pwittchen.reactivenetwork.**
-
-## GSON ##
+-dontnote rx.internal.util.PlatformDependent
+##---------------End: proguard configuration for RxJava 1.x  ----------

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

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

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

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

-## kotlinx.serialization ##
-
+##---------------Begin: proguard configuration for kotlinx.serialization  ----------
 -keepattributes *Annotation*, InnerClasses
 -dontnote kotlinx.serialization.AnnotationsKt # core serialization annotations

+# kotlinx-serialization-json specific. Add this if you have java.lang.NoClassDefFoundError kotlinx.serialization.json.JsonObjectSerializer
 -keepclassmembers class kotlinx.serialization.json.** {
    *** Companion;
 }
@ -77,3 +76,9 @@
 -keepclasseswithmembers class eu.kanade.tachiyomi.** {
    kotlinx.serialization.KSerializer serializer(...);
 }
+
+-keep class kotlinx.serialization.**
+-keepclassmembers class kotlinx.serialization.** {
+    <methods>;
+}
+##---------------End: proguard configuration for kotlinx.serialization  ----------
--- a/app/shortcuts.xml
+++ b/app/shortcuts.xml
@ -17,7 +17,7 @@
        android:shortcutDisabledMessage="@string/app_not_available"
        android:shortcutId="show_recently_updated"
        android:shortcutLongLabel="@string/label_recent_updates"
-        android:shortcutShortLabel="@string/short_recent_updates">
+        android:shortcutShortLabel="@string/label_recent_updates">
        <intent
            android:action="eu.kanade.tachiyomi.SHOW_RECENTLY_UPDATED"
            android:targetClass="eu.kanade.tachiyomi.ui.main.MainActivity" />
--- a/app/src/debug/res/drawable/ic_launcher_foreground.xml
+++ b/app/src/debug/res/drawable/ic_launcher_foreground.xml
@ -1,34 +1,27 @@
 <vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:width="108dp"
-        android:height="108dp"
-        android:viewportWidth="108.0"
-        android:viewportHeight="108.0">
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108.0"
+    android:viewportHeight="108.0">
    <path
        android:pathData="M14.5,7L86.5,7A7,7 0,0 1,93.5 14L93.5,95A7,7 0,0 1,86.5 102L14.5,102A7,7 0,0 1,7.5 95L7.5,14A7,7 0,0 1,14.5 7z"
-        android:fillType="evenOdd"
        android:fillColor="#000"/>
    <path
        android:pathData="M14.5,7L86.5,7A7,7 0,0 1,93.5 14L93.5,95A7,7 0,0 1,86.5 102L14.5,102A7,7 0,0 1,7.5 95L7.5,14A7,7 0,0 1,14.5 7z"
-        android:fillType="evenOdd"
        android:fillColor="#455A64"/>
    <path
        android:pathData="M7.5,12.01C7.5,9.24 9.74,7 12.5,7L17.5,7L17.5,102L12.5,102C9.74,102 7.5,99.77 7.5,96.99L7.5,12.01Z"
-        android:fillType="evenOdd"
        android:fillColor="#607D8B"/>
    <path
        android:pathData="M54,54.5m-25.5,0a25.5,25.5 0,1 1,51 0a25.5,25.5 0,1 1,-51 0"
-        android:fillType="evenOdd"
        android:fillColor="#000"/>
    <path
        android:pathData="M54,54.5m-25.5,0a25.5,25.5 0,1 1,51 0a25.5,25.5 0,1 1,-51 0"
-        android:fillType="evenOdd"
        android:fillColor="#CE2828"/>
    <path
        android:pathData="M54,54.5m-19.94,0a19.94,19.94 0,1 1,39.87 0a19.94,19.94 0,1 1,-39.87 0"
-        android:fillType="evenOdd"
        android:fillColor="#FFF"/>
    <path
        android:pathData="M52.04,46.3L47.42,46.3C46.14,46.3 44.93,46.23 44.2,46.14L44.2,49.76C45,49.65 46.16,49.6 47.42,49.6L60.58,49.6C61.86,49.6 63.02,49.65 63.82,49.76L63.82,46.14C63.09,46.23 61.86,46.3 60.58,46.3L55.69,46.3L55.69,45.07C55.69,44.43 55.73,43.95 55.82,43.45L51.9,43.45C51.99,44 52.04,44.43 52.04,45.07L52.04,46.3ZM46.78,60.68C45.46,60.68 44.29,60.63 43.45,60.52L43.45,64.14C44.34,64.03 45.46,63.98 46.78,63.98L61.29,63.98C62.57,63.98 63.71,64.03 64.57,64.14L64.57,60.52C63.73,60.63 62.57,60.68 61.29,60.68L58.24,60.68C59.33,58.06 59.99,56.23 60.7,53.91C61.34,51.81 61.34,51.81 61.56,51.13L57.58,50.06C57.51,50.93 57.37,51.52 56.89,53.41C56.19,56.14 55.32,58.74 54.5,60.68L46.78,60.68ZM46.48,51.36C47.55,54.02 48.28,56.53 49.03,60.15L52.66,58.9C51.65,54.98 50.92,52.66 49.94,50.11L46.48,51.36Z"
-        android:fillType="evenOdd"
        android:fillColor="#000"/>
 </vector>
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -2,21 +2,28 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="eu.kanade.tachiyomi">

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

    <application
        android:name=".App"
-        android:allowBackup="true"
-        android:fullBackupContent="@xml/backup_rules"
+        android:allowBackup="false"
        android:hardwareAccelerated="true"
        android:hasFragileUserData="true"
        android:icon="@mipmap/ic_launcher"
@ -24,12 +31,15 @@
        android:largeHeap="true"
        android:requestLegacyExternalStorage="true"
        android:roundIcon="@mipmap/ic_launcher_round"
-        android:theme="@style/Theme.Tachiyomi.Light"
+        android:theme="@style/Theme.Tachiyomi"
+        android:supportsRtl="true"
        android:networkSecurityConfig="@xml/network_security_config">
+
        <activity
            android:name=".ui.main.MainActivity"
            android:launchMode="singleTop"
-            android:theme="@style/Theme.Splash">
+            android:theme="@style/Theme.Tachiyomi.SplashScreen"
+            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
@ -43,7 +53,8 @@
            android:name=".ui.main.DeepLinkActivity"
            android:launchMode="singleTask"
            android:theme="@android:style/Theme.NoDisplay"
-            android:label="@string/process_text_action_name">
+            android:label="@string/action_global_search"
+            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
                <action android:name="com.google.android.gms.actions.SEARCH_ACTION" />
@ -55,7 +66,7 @@
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
            <intent-filter>
-                <action android:name="android.intent.action.PROCESS_TEXT" />
+                <action android:name="android.intent.action.SEND" />
                <category android:name="android.intent.category.DEFAULT" />
                <data android:mimeType="text/plain" />
            </intent-filter>
@ -64,9 +75,11 @@
                android:name="android.app.searchable"
                android:resource="@xml/searchable" />
        </activity>
+
        <activity
            android:name=".ui.reader.ReaderActivity"
-            android:launchMode="singleTask">
+            android:launchMode="singleTask"
+            android:exported="false">
            <intent-filter>
                <action android:name="com.samsung.android.support.REMOTE_ACTION" />
            </intent-filter>
@ -74,15 +87,26 @@
            <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" />
+            android:name=".ui.security.UnlockActivity"
+            android:theme="@style/Theme.Tachiyomi"
+            android:exported="false" />
+
        <activity
            android:name=".ui.webview.WebViewActivity"
-            android:configChanges="uiMode|orientation|screenSize" />
+            android:configChanges="uiMode|orientation|screenSize"
+            android:exported="false" />
+
+        <activity
+            android:name=".extension.util.ExtensionInstallActivity"
+            android:theme="@android:style/Theme.Translucent.NoTitleBar"
+            android:exported="false" />
+
        <activity
            android:name=".ui.setting.track.AnilistLoginActivity"
-            android:label="Anilist">
+            android:label="Anilist"
+            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

@ -96,10 +120,23 @@
        </activity>
        <activity
            android:name=".ui.setting.track.MyAnimeListLoginActivity"
-            android:configChanges="uiMode|orientation|screenSize" />
+            android:label="MyAnimeList"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+
+                <data
+                    android:host="myanimelist-auth"
+                    android:scheme="tachiyomi" />
+            </intent-filter>
+        </activity>
        <activity
            android:name=".ui.setting.track.ShikimoriLoginActivity"
-            android:label="Shikimori">
+            android:label="Shikimori"
+            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

@ -113,7 +150,8 @@
        </activity>
        <activity
            android:name=".ui.setting.track.BangumiLoginActivity"
-            android:label="Bangumi">
+            android:label="Bangumi"
+            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.VIEW" />

@ -126,20 +164,6 @@
            </intent-filter>
        </activity>

-        <activity
-            android:name=".extension.util.ExtensionInstallActivity"
-            android:theme="@android:style/Theme.Translucent.NoTitleBar" />
-
-        <provider
-            android:name="androidx.core.content.FileProvider"
-            android:authorities="${applicationId}.provider"
-            android:exported="false"
-            android:grantUriPermissions="true">
-            <meta-data
-                android:name="android.support.FILE_PROVIDER_PATHS"
-                android:resource="@xml/provider_paths" />
-        </provider>
-
        <receiver
            android:name=".data.notification.NotificationReceiver"
            android:exported="false" />
@ -164,6 +188,16 @@
            android:name=".data.backup.BackupRestoreService"
            android:exported="false" />

+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.provider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/provider_paths" />
+        </provider>
+
    </application>

 </manifest>
--- a/app/src/main/java/eu/kanade/tachiyomi/App.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/App.kt
@ -1,93 +1,183 @@
 package eu.kanade.tachiyomi

+import android.app.ActivityManager
 import android.app.Application
+import android.app.PendingIntent
+import android.content.BroadcastReceiver
 import android.content.Context
-import android.content.res.Configuration
+import android.content.Intent
+import android.content.IntentFilter
 import android.os.Build
+import android.webkit.WebView
+import androidx.appcompat.app.AppCompatDelegate
+import androidx.core.app.NotificationManagerCompat
+import androidx.core.content.getSystemService
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.LifecycleObserver
 import androidx.lifecycle.OnLifecycleEvent
 import androidx.lifecycle.ProcessLifecycleOwner
-import androidx.multidex.MultiDex
+import androidx.lifecycle.lifecycleScope
+import coil.ImageLoader
+import coil.ImageLoaderFactory
+import coil.decode.GifDecoder
+import coil.decode.ImageDecoderDecoder
+import eu.kanade.tachiyomi.data.coil.ByteBufferFetcher
+import eu.kanade.tachiyomi.data.coil.MangaCoverFetcher
+import eu.kanade.tachiyomi.data.coil.TachiyomiImageDecoder
 import eu.kanade.tachiyomi.data.notification.Notifications
+import eu.kanade.tachiyomi.data.preference.PreferenceValues
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.preference.asImmediateFlow
+import eu.kanade.tachiyomi.network.NetworkHelper
 import eu.kanade.tachiyomi.ui.security.SecureActivityDelegate
-import eu.kanade.tachiyomi.util.system.LocaleHelper
-import org.acra.ACRA
-import org.acra.annotation.AcraCore
-import org.acra.annotation.AcraHttpSender
+import eu.kanade.tachiyomi.util.system.notification
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import org.acra.config.httpSender
+import org.acra.ktx.initAcra
 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.api.get
 import uy.kohesive.injekt.injectLazy
-import uy.kohesive.injekt.registry.default.DefaultRegistrar
 import java.security.Security

-@AcraCore(
-    buildConfigClass = BuildConfig::class,
-    excludeMatchingSharedPreferencesKeys = [".*username.*", ".*password.*", ".*token.*"]
-)
-@AcraHttpSender(
-    uri = "https://tachiyomi.kanade.eu/crash_report",
-    httpMethod = HttpSender.Method.PUT
-)
-open class App : Application(), LifecycleObserver {
+open class App : Application(), LifecycleObserver, ImageLoaderFactory {
+
+    private val preferences: PreferencesHelper by injectLazy()
+
+    private val disableIncognitoReceiver = DisableIncognitoReceiver()

    override fun onCreate() {
        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())
+        // Avoid potential crashes
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+            val process = getProcessName()
+            if (packageName != process) WebView.setDataDirectorySuffix(process)
+        }
+
        Injekt.importModule(AppModule(this))

        setupAcra()
        setupNotificationChannels()

-        LocaleHelper.updateConfiguration(this, resources.configuration)
-
        ProcessLifecycleOwner.get().lifecycle.addObserver(this)
+
+        // Show notification to disable Incognito Mode when it's enabled
+        preferences.incognitoMode().asFlow()
+            .onEach { enabled ->
+                val notificationManager = NotificationManagerCompat.from(this)
+                if (enabled) {
+                    disableIncognitoReceiver.register()
+                    val notification = notification(Notifications.CHANNEL_INCOGNITO_MODE) {
+                        setContentTitle(getString(R.string.pref_incognito_mode))
+                        setContentText(getString(R.string.notification_incognito_text))
+                        setSmallIcon(R.drawable.ic_glasses_24dp)
+                        setOngoing(true)
+
+                        val pendingIntent = PendingIntent.getBroadcast(
+                            this@App,
+                            0,
+                            Intent(ACTION_DISABLE_INCOGNITO_MODE),
+                            PendingIntent.FLAG_ONE_SHOT
+                        )
+                        setContentIntent(pendingIntent)
+                    }
+                    notificationManager.notify(Notifications.ID_INCOGNITO_MODE, notification)
+                } else {
+                    disableIncognitoReceiver.unregister()
+                    notificationManager.cancel(Notifications.ID_INCOGNITO_MODE)
+                }
+            }
+            .launchIn(ProcessLifecycleOwner.get().lifecycleScope)
+
+        preferences.themeMode()
+            .asImmediateFlow {
+                AppCompatDelegate.setDefaultNightMode(
+                    when (it) {
+                        PreferenceValues.ThemeMode.light -> AppCompatDelegate.MODE_NIGHT_NO
+                        PreferenceValues.ThemeMode.dark -> AppCompatDelegate.MODE_NIGHT_YES
+                        PreferenceValues.ThemeMode.system -> AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM
+                    }
+                )
+            }.launchIn(ProcessLifecycleOwner.get().lifecycleScope)
    }

-    override fun attachBaseContext(base: Context) {
-        super.attachBaseContext(base)
-        MultiDex.install(this)
-    }
-
-    override fun onConfigurationChanged(newConfig: Configuration) {
-        super.onConfigurationChanged(newConfig)
-        LocaleHelper.updateConfiguration(this, newConfig, true)
+    override fun newImageLoader(): ImageLoader {
+        return ImageLoader.Builder(this).apply {
+            componentRegistry {
+                add(TachiyomiImageDecoder(this@App.resources))
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+                    add(ImageDecoderDecoder(this@App))
+                } else {
+                    add(GifDecoder())
+                }
+                add(ByteBufferFetcher())
+                add(MangaCoverFetcher())
+            }
+            okHttpClient(Injekt.get<NetworkHelper>().coilClient)
+            crossfade(300)
+            allowRgb565(getSystemService<ActivityManager>()!!.isLowRamDevice)
+        }.build()
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
    @Suppress("unused")
    fun onAppBackgrounded() {
-        val preferences: PreferencesHelper by injectLazy()
        if (preferences.lockAppAfter().get() >= 0) {
            SecureActivityDelegate.locked = true
        }
    }

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

    protected open fun setupNotificationChannels() {
        Notifications.createChannels(this)
    }
+
+    private inner class DisableIncognitoReceiver : BroadcastReceiver() {
+        private var registered = false
+
+        override fun onReceive(context: Context, intent: Intent) {
+            preferences.incognitoMode().set(false)
+        }
+
+        fun register() {
+            if (!registered) {
+                registerReceiver(this, IntentFilter(ACTION_DISABLE_INCOGNITO_MODE))
+                registered = true
+            }
+        }
+
+        fun unregister() {
+            if (registered) {
+                unregisterReceiver(this)
+                registered = false
+            }
+        }
+    }
+
+    companion object {
+        private const val ACTION_DISABLE_INCOGNITO_MODE = "tachi.action.DISABLE_INCOGNITO_MODE"
+    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/AppModule.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/AppModule.kt
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi

 import android.app.Application
-import com.google.gson.Gson
+import androidx.core.content.ContextCompat
 import eu.kanade.tachiyomi.data.cache.ChapterCache
 import eu.kanade.tachiyomi.data.cache.CoverCache
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
@ -11,8 +11,6 @@ import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.extension.ExtensionManager
 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
@ -43,20 +41,19 @@ class AppModule(val app: Application) : InjektModule {

        addSingletonFactory { TrackManager(app) }

-        addSingletonFactory { Gson() }
-
        addSingletonFactory { Json { ignoreUnknownKeys = true } }

        // Asynchronously init expensive components for a faster cold start
+        ContextCompat.getMainExecutor(app).execute {
+            get<PreferencesHelper>()

-        GlobalScope.launch { get<PreferencesHelper>() }
+            get<NetworkHelper>()

-        GlobalScope.launch { get<NetworkHelper>() }
+            get<SourceManager>()

-        GlobalScope.launch { get<SourceManager>() }
+            get<DatabaseHelper>()

-        GlobalScope.launch { get<DatabaseHelper>() }
-
-        GlobalScope.launch { get<DownloadManager>() }
+            get<DownloadManager>()
+        }
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/Migrations.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/Migrations.kt
@ -1,5 +1,6 @@
 package eu.kanade.tachiyomi

+import android.os.Build
 import androidx.core.content.edit
 import androidx.preference.PreferenceManager
 import eu.kanade.tachiyomi.data.backup.BackupCreatorJob
@ -9,7 +10,11 @@ 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.network.PREF_DOH_CLOUDFLARE
 import eu.kanade.tachiyomi.ui.library.LibrarySort
+import eu.kanade.tachiyomi.ui.library.setting.SortDirectionSetting
+import eu.kanade.tachiyomi.ui.library.setting.SortModeSetting
+import eu.kanade.tachiyomi.ui.reader.setting.OrientationType
 import eu.kanade.tachiyomi.util.system.toast
 import eu.kanade.tachiyomi.widget.ExtendedNavigationView
 import uy.kohesive.injekt.Injekt
@ -93,9 +98,15 @@ object Migrations {
            }
            if (oldVersion < 44) {
                // Reset sorting preference if using removed sort by source
+                val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+
+                val oldSortingMode = prefs.getInt(PreferenceKeys.librarySortingMode, 0)
+
                @Suppress("DEPRECATION")
-                if (preferences.librarySortingMode().get() == LibrarySort.SOURCE) {
-                    preferences.librarySortingMode().set(LibrarySort.ALPHA)
+                if (oldSortingMode == LibrarySort.SOURCE) {
+                    prefs.edit {
+                        putInt(PreferenceKeys.librarySortingMode, LibrarySort.ALPHA)
+                    }
                }
            }
            if (oldVersion < 52) {
@ -116,14 +127,116 @@ object Migrations {
                    putInt(PreferenceKeys.filterCompleted, convertBooleanPrefToTriState("pref_filter_completed_key"))
                    remove("pref_filter_completed_key")
                }
-
+            }
+            if (oldVersion < 54) {
                // Force MAL log out due to login flow change
+                // v52: switched from scraping to WebView
+                // v53: switched from WebView to OAuth
                val trackManager = Injekt.get<TrackManager>()
                if (trackManager.myAnimeList.isLogged) {
                    trackManager.myAnimeList.logout()
                    context.toast(R.string.myanimelist_relogin)
                }
            }
+            if (oldVersion < 57) {
+                // Migrate DNS over HTTPS setting
+                val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+                val wasDohEnabled = prefs.getBoolean("enable_doh", false)
+                if (wasDohEnabled) {
+                    prefs.edit {
+                        putInt(PreferenceKeys.dohProvider, PREF_DOH_CLOUDFLARE)
+                        remove("enable_doh")
+                    }
+                }
+            }
+            if (oldVersion < 59) {
+                // Reset rotation to Free after replacing Lock
+                val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+                if (prefs.contains("pref_rotation_type_key")) {
+                    prefs.edit {
+                        putInt("pref_rotation_type_key", 1)
+                    }
+                }
+
+                // Disable update check for Android 5.x users
+                if (BuildConfig.INCLUDE_UPDATER && Build.VERSION.SDK_INT <= Build.VERSION_CODES.M) {
+                    UpdaterJob.cancelTask(context)
+                }
+            }
+            if (oldVersion < 60) {
+                // Re-enable update check that was prevously accidentally disabled for M
+                if (BuildConfig.INCLUDE_UPDATER && Build.VERSION.SDK_INT == Build.VERSION_CODES.M) {
+                    UpdaterJob.setupTask(context)
+                }
+
+                // Migrate Rotation and Viewer values to default values for viewer_flags
+                val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+                val newOrientation = when (prefs.getInt("pref_rotation_type_key", 1)) {
+                    1 -> OrientationType.FREE.flagValue
+                    2 -> OrientationType.PORTRAIT.flagValue
+                    3 -> OrientationType.LANDSCAPE.flagValue
+                    4 -> OrientationType.LOCKED_PORTRAIT.flagValue
+                    5 -> OrientationType.LOCKED_LANDSCAPE.flagValue
+                    else -> OrientationType.FREE.flagValue
+                }
+
+                // Reading mode flag and prefValue is the same value
+                val newReadingMode = prefs.getInt("pref_default_viewer_key", 1)
+
+                prefs.edit {
+                    putInt("pref_default_orientation_type_key", newOrientation)
+                    remove("pref_rotation_type_key")
+                    putInt("pref_default_reading_mode_key", newReadingMode)
+                    remove("pref_default_viewer_key")
+                }
+            }
+            if (oldVersion < 61) {
+                // Handle removed every 1 or 2 hour library updates
+                val updateInterval = preferences.libraryUpdateInterval().get()
+                if (updateInterval == 1 || updateInterval == 2) {
+                    preferences.libraryUpdateInterval().set(3)
+                    LibraryUpdateJob.setupTask(context, 3)
+                }
+            }
+            if (oldVersion < 64) {
+                val prefs = PreferenceManager.getDefaultSharedPreferences(context)
+
+                val oldSortingMode = prefs.getInt(PreferenceKeys.librarySortingMode, 0)
+                val oldSortingDirection = prefs.getBoolean(PreferenceKeys.librarySortingDirection, true)
+
+                @Suppress("DEPRECATION")
+                val newSortingMode = when (oldSortingMode) {
+                    LibrarySort.ALPHA -> SortModeSetting.ALPHABETICAL
+                    LibrarySort.LAST_READ -> SortModeSetting.LAST_READ
+                    LibrarySort.LAST_CHECKED -> SortModeSetting.LAST_CHECKED
+                    LibrarySort.UNREAD -> SortModeSetting.UNREAD
+                    LibrarySort.TOTAL -> SortModeSetting.TOTAL_CHAPTERS
+                    LibrarySort.LATEST_CHAPTER -> SortModeSetting.LATEST_CHAPTER
+                    LibrarySort.CHAPTER_FETCH_DATE -> SortModeSetting.DATE_FETCHED
+                    LibrarySort.DATE_ADDED -> SortModeSetting.DATE_ADDED
+                    else -> SortModeSetting.ALPHABETICAL
+                }
+
+                val newSortingDirection = when (oldSortingDirection) {
+                    true -> SortDirectionSetting.ASCENDING
+                    else -> SortDirectionSetting.DESCENDING
+                }
+
+                prefs.edit(commit = true) {
+                    remove(PreferenceKeys.librarySortingMode)
+                    remove(PreferenceKeys.librarySortingDirection)
+                }
+
+                prefs.edit {
+                    putString(PreferenceKeys.librarySortingMode, newSortingMode.name)
+                    putString(PreferenceKeys.librarySortingDirection, newSortingDirection.name)
+                }
+            }
+            if (oldVersion < 65) {
+                if (preferences.lang().get() in listOf("en-US", "en-GB")) {
+                    preferences.lang().set("en")
+                }
+            }
            return true
        }

--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupManager.kt
@ -5,12 +5,13 @@ import android.net.Uri
 import eu.kanade.tachiyomi.data.database.DatabaseHelper
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.toMangaInfo
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.source.SourceManager
+import eu.kanade.tachiyomi.source.model.toSChapter
 import eu.kanade.tachiyomi.util.chapter.syncChaptersWithSource
-import rx.Observable
 import uy.kohesive.injekt.injectLazy

 abstract class AbstractBackupManager(protected val context: Context) {
@ -31,22 +32,22 @@ abstract class AbstractBackupManager(protected val context: Context) {
        databaseHelper.getManga(manga.url, manga.source).executeAsBlocking()

    /**
-     * [Observable] that fetches chapter information
+     * 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
+     * @return Updated manga chapters.
     */
-    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)
-                }
-            }
+    internal suspend fun restoreChapters(source: Source, manga: Manga, chapters: List<Chapter>): Pair<List<Chapter>, List<Chapter>> {
+        val fetchedChapters = source.getChapterList(manga.toMangaInfo())
+            .map { it.toSChapter() }
+        val syncedChapters = syncChaptersWithSource(databaseHelper, fetchedChapters, manga, source)
+        if (syncedChapters.first.isNotEmpty()) {
+            chapters.forEach { it.manga_id = manga.id }
+            updateChapters(chapters)
+        }
+        return syncedChapters
    }

    /**
@ -79,6 +80,13 @@ abstract class AbstractBackupManager(protected val context: Context) {
        databaseHelper.updateChaptersBackup(chapters).executeAsBlocking()
    }

+    /**
+     * Updates a list of chapters with known database ids
+     */
+    protected fun updateKnownChapters(chapters: List<Chapter>) {
+        databaseHelper.updateKnownChaptersBackup(chapters).executeAsBlocking()
+    }
+
    /**
     * Return number of backups.
     *
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupRestore.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/AbstractBackupRestore.kt
@ -10,8 +10,8 @@ import eu.kanade.tachiyomi.data.database.models.Track
 import eu.kanade.tachiyomi.data.track.TrackManager
 import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.util.chapter.NoChaptersException
+import eu.kanade.tachiyomi.util.system.createFileInCacheDir
 import kotlinx.coroutines.Job
-import rx.Observable
 import uy.kohesive.injekt.injectLazy
 import java.io.File
 import java.text.SimpleDateFormat
@ -37,9 +37,9 @@ abstract class AbstractBackupRestore<T : AbstractBackupManager>(protected val co

    protected val errors = mutableListOf<Pair<Date, String>>()

-    abstract fun performRestore(uri: Uri): Boolean
+    abstract suspend fun performRestore(uri: Uri): Boolean

-    fun restoreBackup(uri: Uri): Boolean {
+    suspend fun restoreBackup(uri: Uri): Boolean {
        val startTime = System.currentTimeMillis()
        restoreProgress = 0
        errors.clear()
@ -58,48 +58,48 @@ abstract class AbstractBackupRestore<T : AbstractBackupManager>(protected val co
    }

    /**
-     * [Observable] that fetches chapter information
+     * Fetches chapter information.
     *
     * @param source source of manga
     * @param manga manga that needs updating
-     * @return [Observable] that contains manga
+     * @return Updated manga chapters.
     */
-    internal fun chapterFetchObservable(source: Source, manga: Manga, chapters: List<Chapter>): Observable<Pair<List<Chapter>, List<Chapter>>> {
-        return backupManager.restoreChapterFetchObservable(source, manga, chapters)
+    internal suspend fun updateChapters(source: Source, manga: Manga, chapters: List<Chapter>): Pair<List<Chapter>, List<Chapter>> {
+        return try {
+            backupManager.restoreChapters(source, manga, chapters)
+        } catch (e: Exception) {
            // If there's any error, return empty update and continue.
-            .onErrorReturn {
-                val errorMessage = if (it is NoChaptersException) {
-                    context.getString(R.string.no_chapters_error)
-                } else {
-                    it.message
-                }
-                errors.add(Date() to "${manga.title} - $errorMessage")
-                Pair(emptyList(), emptyList())
+            val errorMessage = if (e is NoChaptersException) {
+                context.getString(R.string.no_chapters_error)
+            } else {
+                e.message
            }
+            errors.add(Date() to "${manga.title} - $errorMessage")
+            Pair(emptyList(), emptyList())
+        }
    }

    /**
-     * [Observable] that refreshes tracking information
+     * 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} - ${context.getString(R.string.tracker_not_logged_in, service?.name)}")
-                    Observable.empty()
+    internal suspend fun updateTracking(manga: Manga, tracks: List<Track>) {
+        tracks.forEach { track ->
+            val service = trackManager.getService(track.sync_id)
+            if (service != null && service.isLogged) {
+                try {
+                    val updatedTrack = service.refresh(track)
+                    db.insertTrack(updatedTrack).executeAsBlocking()
+                } catch (e: Exception) {
+                    errors.add(Date() to "${manga.title} - ${e.message}")
                }
+            } else {
+                val serviceName = service?.nameRes()?.let { context.getString(it) }
+                errors.add(Date() to "${manga.title} - ${context.getString(R.string.tracker_not_logged_in, serviceName)}")
            }
+        }
    }

    /**
@ -120,15 +120,15 @@ abstract class AbstractBackupRestore<T : AbstractBackupManager>(protected val co
    internal fun writeErrorLog(): File {
        try {
            if (errors.isNotEmpty()) {
-                val destFile = File(context.externalCacheDir, "tachiyomi_restore.txt")
+                val file = context.createFileInCacheDir("tachiyomi_restore.txt")
                val sdf = SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS", Locale.getDefault())

-                destFile.bufferedWriter().use { out ->
+                file.bufferedWriter().use { out ->
                    errors.forEach { (date, message) ->
                        out.write("[${sdf.format(date)}] $message\n")
                    }
                }
-                return destFile
+                return file
            }
        } catch (e: Exception) {
            // Empty
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupConst.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupConst.kt
@ -8,7 +8,6 @@ object BackupConst {
    const val EXTRA_URI = "$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
@ -10,7 +10,6 @@ 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
@ -48,12 +47,11 @@ class BackupCreateService : Service() {
         * @param uri path of Uri
         * @param flags determines what to backup
         */
-        fun start(context: Context, uri: Uri, flags: Int, type: Int) {
+        fun start(context: Context, uri: Uri, flags: Int) {
            if (!isRunning(context)) {
                val intent = Intent(context, BackupCreateService::class.java).apply {
                    putExtra(BackupConst.EXTRA_URI, uri)
                    putExtra(BackupConst.EXTRA_FLAGS, flags)
-                    putExtra(BackupConst.EXTRA_TYPE, type)
                }
                ContextCompat.startForegroundService(context, intent)
            }
@ -101,15 +99,9 @@ class BackupCreateService : Service() {
        if (intent == null) return START_NOT_STICKY

        try {
-            val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)
+            val uri = intent.getParcelableExtra<Uri>(BackupConst.EXTRA_URI)!!
            val backupFlags = intent.getIntExtra(BackupConst.EXTRA_FLAGS, 0)
-            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 = backupManager.createBackup(uri, backupFlags, false)?.toUri()
+            val backupFileUri = FullBackupManager(this).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
@ -8,7 +8,6 @@ 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 uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
@ -23,9 +22,6 @@ class BackupCreatorJob(private val context: Context, workerParams: WorkerParamet
        val flags = BackupCreateService.BACKUP_ALL
        return try {
            FullBackupManager(context).createBackup(uri, flags, true)
-            if (preferences.createLegacyBackup().get()) {
-                LegacyBackupManager(context).createBackup(uri, flags, true)
-            }
            Result.success()
        } catch (e: Exception) {
            Result.failure()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupNotifier.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupNotifier.kt
@ -24,6 +24,7 @@ class BackupNotifier(private val context: Context) {
        setSmallIcon(R.drawable.ic_tachi)
        setAutoCancel(false)
        setOngoing(true)
+        setOnlyAlertOnce(true)
    }

    private val completeNotificationBuilder = context.notificationBuilder(Notifications.CHANNEL_BACKUP_RESTORE_COMPLETE) {
@ -41,7 +42,6 @@ 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)
@ -68,9 +68,7 @@ class BackupNotifier(private val context: Context) {
            setContentText(unifile.filePath ?: unifile.name)

            // Clear old actions if they exist
-            if (mActions.isNotEmpty()) {
-                mActions.clear()
-            }
+            clearActions()

            addAction(
                R.drawable.ic_share_24dp,
@ -94,9 +92,7 @@ class BackupNotifier(private val context: Context) {
            setOnlyAlertOnce(true)

            // Clear old actions if they exist
-            if (mActions.isNotEmpty()) {
-                mActions.clear()
-            }
+            clearActions()

            addAction(
                R.drawable.ic_close_24dp,
@ -137,9 +133,7 @@ class BackupNotifier(private val context: Context) {
            setContentText(context.resources.getQuantityString(R.plurals.restore_completed_message, errorCount, timeString, errorCount))

            // Clear old actions if they exist
-            if (mActions.isNotEmpty()) {
-                mActions.clear()
-            }
+            clearActions()

            if (errorCount > 0 && !path.isNullOrEmpty() && !file.isNullOrEmpty()) {
                val destFile = File(path, file)
@ -147,7 +141,7 @@ class BackupNotifier(private val context: Context) {

                addAction(
                    R.drawable.ic_folder_24dp,
-                    context.getString(R.string.action_open_log),
+                    context.getString(R.string.action_show_errors),
                    NotificationReceiver.openErrorLogPendingActivity(context, uri)
                )
            }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/BackupRestoreService.kt
@ -14,7 +14,10 @@ import eu.kanade.tachiyomi.data.notification.Notifications
 import eu.kanade.tachiyomi.util.system.acquireWakeLock
 import eu.kanade.tachiyomi.util.system.isServiceRunning
 import kotlinx.coroutines.CoroutineExceptionHandler
-import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
 import kotlinx.coroutines.launch
 import timber.log.Timber

@ -40,12 +43,11 @@ class BackupRestoreService : Service() {
         * @param context context of application
         * @param uri path of Uri
         */
-        fun start(context: Context, uri: Uri, mode: Int, online: Boolean?) {
+        fun start(context: Context, uri: Uri, mode: Int) {
            if (!isRunning(context)) {
                val intent = Intent(context, BackupRestoreService::class.java).apply {
                    putExtra(BackupConst.EXTRA_URI, uri)
                    putExtra(BackupConst.EXTRA_MODE, mode)
-                    online?.let { putExtra(BackupConst.EXTRA_TYPE, it) }
                }
                ContextCompat.startForegroundService(context, intent)
            }
@ -68,12 +70,14 @@ class BackupRestoreService : Service() {
     */
    private lateinit var wakeLock: PowerManager.WakeLock

+    private lateinit var ioScope: CoroutineScope
    private var backupRestore: AbstractBackupRestore<*>? = null
    private lateinit var notifier: BackupNotifier

    override fun onCreate() {
        super.onCreate()

+        ioScope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
        notifier = BackupNotifier(this)
        wakeLock = acquireWakeLock(javaClass.name)

@ -92,6 +96,7 @@ class BackupRestoreService : Service() {

    private fun destroyJob() {
        backupRestore?.job?.cancel()
+        ioScope.cancel()
        if (wakeLock.isHeld) {
            wakeLock.release()
        }
@ -113,15 +118,15 @@ 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.
        backupRestore?.job?.cancel()

        backupRestore = when (mode) {
-            BackupConst.BACKUP_TYPE_FULL -> FullBackupRestore(this, notifier, online)
+            BackupConst.BACKUP_TYPE_FULL -> FullBackupRestore(this, notifier)
            else -> LegacyBackupRestore(this, notifier)
        }
+
        val handler = CoroutineExceptionHandler { _, exception ->
            Timber.e(exception)
            backupRestore?.writeErrorLog()
@ -129,14 +134,15 @@ class BackupRestoreService : Service() {
            notifier.showRestoreError(exception.message)
            stopSelf(startId)
        }
-        backupRestore?.job = GlobalScope.launch(handler) {
+        val job = ioScope.launch(handler) {
            if (backupRestore?.restoreBackup(uri) == false) {
                notifier.showRestoreError(getString(R.string.restoring_backup_canceled))
            }
        }
-        backupRestore?.job?.invokeOnCompletion {
+        job.invokeOnCompletion {
            stopSelf(startId)
        }
+        backupRestore?.job = job

        return START_NOT_STICKY
    }
--- 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
@ -26,17 +26,13 @@ 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
@ -182,29 +178,15 @@ class FullBackupManager(context: Context) : AbstractBackupManager(context) {
    }

    /**
-     * [Observable] that fetches manga information
+     * Fetches manga information
     *
-     * @param source source of manga
     * @param manga manga that needs updating
-     * @return [Observable] that contains manga
+     * @return Updated manga info.
     */
-    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
-                }
+    fun restoreManga(manga: Manga): Manga {
+        return manga.also {
+            it.initialized = it.description != null
+            it.id = insertManga(it)
        }
    }

@ -249,7 +231,7 @@ class FullBackupManager(context: Context) : AbstractBackupManager(context) {
     */
    internal fun restoreCategoriesForManga(manga: Manga, categories: List<Int>, backupCategories: List<BackupCategory>) {
        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
-        val mangaCategoriesToUpdate = mutableListOf<MangaCategory>()
+        val mangaCategoriesToUpdate = ArrayList<MangaCategory>(categories.size)
        categories.forEach { backupCategoryOrder ->
            backupCategories.firstOrNull {
                it.order == backupCategoryOrder
@ -276,7 +258,7 @@ class FullBackupManager(context: Context) : AbstractBackupManager(context) {
     */
    internal fun restoreHistoryForManga(history: List<BackupHistory>) {
        // List containing history to be updated
-        val historyToBeUpdated = mutableListOf<History>()
+        val historyToBeUpdated = ArrayList<History>(history.size)
        for ((url, lastRead) in history) {
            val dbHistory = databaseHelper.getHistoryByChapterUrl(url).executeAsBlocking()
            // Check if history already in database and update
@ -313,29 +295,26 @@ class FullBackupManager(context: Context) : AbstractBackupManager(context) {
        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
+            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)
-                }
+            }
+            if (!isInDatabase) {
+                // Insert new sync. Let the db assign the id
+                track.id = null
+                trackToUpdate.add(track)
            }
        }
        // Update database
@ -344,25 +323,12 @@ class FullBackupManager(context: Context) : AbstractBackupManager(context) {
        }
    }

-    /**
-     * 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 {
+    internal fun restoreChaptersForManga(manga: Manga, chapters: List<Chapter>) {
        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]
+            val dbChapter = dbChapters.find { it.url == chapter.url }
+            if (dbChapter != null) {
                chapter.id = dbChapter.id
                chapter.copyFrom(dbChapter)
                if (dbChapter.read && !chapter.read) {
@ -375,38 +341,12 @@ class FullBackupManager(context: Context) : AbstractBackupManager(context) {
                    chapter.bookmark = dbChapter.bookmark
                }
            }
+
+            chapter.manga_id = manga.id
        }
-        // 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 })
+        val newChapters = chapters.groupBy { it.id != null }
+        newChapters[true]?.let { updateKnownChapters(it) }
+        newChapters[false]?.let { insertChapters(it) }
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/FullBackupRestore.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/full/FullBackupRestore.kt
@ -12,18 +12,14 @@ 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) {
+class FullBackupRestore(context: Context, notifier: BackupNotifier) : AbstractBackupRestore<FullBackupManager>(context, notifier) {

-    override fun performRestore(uri: Uri): Boolean {
+    override suspend fun performRestore(uri: Uri): Boolean {
        backupManager = FullBackupManager(context)

        val backupString = context.contentResolver.openInputStream(uri)!!.source().gzip().buffer().use { it.readByteArray() }
@ -45,9 +41,11 @@ class FullBackupRestore(context: Context, notifier: BackupNotifier, private val
                return false
            }

-            restoreManga(it, backup.backupCategories, online)
+            restoreManga(it, backup.backupCategories)
        }

+        // TODO: optionally trigger online library + tracker update
+
        return true
    }

@ -60,7 +58,7 @@ class FullBackupRestore(context: Context, notifier: BackupNotifier, private val
        showRestoreProgress(restoreProgress, restoreAmount, context.getString(R.string.categories))
    }

-    private fun restoreManga(backupManga: BackupManga, backupCategories: List<BackupCategory>, online: Boolean) {
+    private fun restoreManga(backupManga: BackupManga, backupCategories: List<BackupCategory>) {
        val manga = backupManga.getMangaImpl()
        val chapters = backupManga.getChaptersImpl()
        val categories = backupManga.categories
@ -68,15 +66,10 @@ class FullBackupRestore(context: Context, notifier: BackupNotifier, private val
        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} - ${context.getString(R.string.source_not_found_name, sourceName)}")
-            }
+            restoreMangaData(manga, chapters, categories, history, tracks, backupCategories)
        } catch (e: Exception) {
-            errors.add(Date() to "${manga.title} - ${e.message}")
+            val sourceName = sourceMapping[manga.source] ?: manga.source.toString()
+            errors.add(Date() to "${manga.title} [$sourceName]: ${e.message}")
        }

        restoreProgress += 1
@ -87,7 +80,6 @@ class FullBackupRestore(context: Context, notifier: BackupNotifier, private val
     * 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
@ -95,101 +87,65 @@ class FullBackupRestore(context: Context, notifier: BackupNotifier, private val
     */
    private fun restoreMangaData(
        manga: Manga,
-        source: Source?,
        chapters: List<Chapter>,
        categories: List<Int>,
        history: List<BackupHistory>,
        tracks: List<Track>,
-        backupCategories: List<BackupCategory>,
-        online: Boolean
+        backupCategories: List<BackupCategory>
    ) {
-        val dbManga = backupManager.getMangaFromDatabase(manga)
-
        db.inTransaction {
+            val dbManga = backupManager.getMangaFromDatabase(manga)
            if (dbManga == null) {
                // Manga not in database
-                restoreMangaFetch(source, manga, chapters, categories, history, tracks, backupCategories, online)
-            } else { // Manga in database
+                restoreMangaFetch(manga, chapters, categories, history, tracks, backupCategories)
+            } else {
+                // Manga in database
                // Copy information from manga already in database
                backupManager.restoreMangaNoFetch(manga, dbManga)
                // Fetch rest of manga information
-                restoreMangaNoFetch(source, manga, chapters, categories, history, tracks, backupCategories, online)
+                restoreMangaNoFetch(manga, chapters, categories, history, tracks, backupCategories)
            }
        }
    }

    /**
-     * [Observable] that fetches manga information
+     * 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
+        backupCategories: List<BackupCategory>
    ) {
-        backupManager.restoreMangaFetchObservable(source, manga, online)
-            .doOnError {
-                errors.add(Date() to "${manga.title} - ${it.message}")
-            }
-            .filter { it.id != null }
-            .flatMap {
-                if (online && source != null) {
-                    chapterFetchObservable(source, it, chapters)
-                        // Convert to the manga that contains new chapters.
-                        .map { manga }
-                } else {
-                    backupManager.restoreChaptersForMangaOffline(it, chapters)
-                    Observable.just(manga)
-                }
-            }
-            .doOnNext {
-                restoreExtraForManga(it, categories, history, tracks, backupCategories)
-            }
-            .flatMap {
-                trackingFetchObservable(it, tracks)
-            }
-            .subscribe()
+        try {
+            val fetchedManga = backupManager.restoreManga(manga)
+            fetchedManga.id ?: return
+
+            backupManager.restoreChaptersForManga(fetchedManga, chapters)
+
+            restoreExtraForManga(fetchedManga, categories, history, tracks, backupCategories)
+        } catch (e: Exception) {
+            errors.add(Date() to "${manga.title} - ${e.message}")
+        }
    }

    private fun restoreMangaNoFetch(
-        source: Source?,
        backupManga: Manga,
        chapters: List<Chapter>,
        categories: List<Int>,
        history: List<BackupHistory>,
        tracks: List<Track>,
-        backupCategories: List<BackupCategory>,
-        online: Boolean
+        backupCategories: List<BackupCategory>
    ) {
-        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()
+        backupManager.restoreChaptersForManga(backupManga, chapters)
+
+        restoreExtraForManga(backupManga, categories, history, tracks, backupCategories)
    }

    private fun restoreExtraForManga(manga: Manga, categories: List<Int>, history: List<BackupHistory>, tracks: List<Track>, backupCategories: List<BackupCategory>) {
--- 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
@ -5,12 +5,10 @@ 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.
@ -41,7 +39,7 @@ class FullBackupRestoreValidator : AbstractBackupRestoreValidator() {
        val missingTrackers = trackers
            .mapNotNull { trackManager.getService(it) }
            .filter { !it.isLogged }
-            .map { it.name }
+            .map { context.getString(it.nameRes()) }
            .sorted()

        return Results(missingSources, missingTrackers)
--- 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
@ -25,7 +25,7 @@ data class BackupManga(
    // @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(14) var viewer: Int = 0, // Replaced by viewer_flags
    // @ProtoNumber(15) val flags: Int = 0, 1.x value, not used in 0.x
    @ProtoNumber(16) var chapters: List<BackupChapter> = emptyList(),
    @ProtoNumber(17) var categories: List<Int> = emptyList(),
@ -34,6 +34,7 @@ data class BackupManga(
    @ProtoNumber(100) var favorite: Boolean = true,
    @ProtoNumber(101) var chapterFlags: Int = 0,
    @ProtoNumber(102) var history: List<BackupHistory> = emptyList(),
+    @ProtoNumber(103) var viewer_flags: Int? = null
 ) {
    fun getMangaImpl(): MangaImpl {
        return MangaImpl().apply {
@ -48,7 +49,7 @@ data class BackupManga(
            favorite = this@BackupManga.favorite
            source = this@BackupManga.source
            date_added = this@BackupManga.dateAdded
-            viewer = this@BackupManga.viewer
+            viewer_flags = this@BackupManga.viewer_flags ?: this@BackupManga.viewer
            chapter_flags = this@BackupManga.chapterFlags
        }
    }
@ -79,7 +80,8 @@ data class BackupManga(
                favorite = manga.favorite,
                source = manga.source,
                dateAdded = manga.date_added,
-                viewer = manga.viewer,
+                viewer = manga.readingModeType,
+                viewer_flags = manga.viewer_flags,
                chapterFlags = manga.chapter_flags
            )
        }
--- 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
@ -2,80 +2,52 @@ package eu.kanade.tachiyomi.data.backup.legacy

 import android.content.Context
 import android.net.Uri
-import com.github.salomonbrys.kotson.fromJson
-import com.github.salomonbrys.kotson.registerTypeAdapter
-import com.github.salomonbrys.kotson.registerTypeHierarchyAdapter
-import com.github.salomonbrys.kotson.set
-import com.google.gson.Gson
-import com.google.gson.GsonBuilder
-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
-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.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.Backup.Companion.CURRENT_VERSION
 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.backup.legacy.serializer.CategoryImplTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.CategoryTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.ChapterImplTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.ChapterTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.HistoryTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.MangaImplTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.MangaTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.TrackImplTypeSerializer
+import eu.kanade.tachiyomi.data.backup.legacy.serializer.TrackTypeSerializer
+import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.data.database.models.Chapter
-import eu.kanade.tachiyomi.data.database.models.ChapterImpl
 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.MangaImpl
 import eu.kanade.tachiyomi.data.database.models.Track
-import eu.kanade.tachiyomi.data.database.models.TrackImpl
-import eu.kanade.tachiyomi.source.LocalSource
+import eu.kanade.tachiyomi.data.database.models.toMangaInfo
 import eu.kanade.tachiyomi.source.Source
-import rx.Observable
-import timber.log.Timber
+import eu.kanade.tachiyomi.source.model.toSManga
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.modules.SerializersModule
+import kotlinx.serialization.modules.contextual
 import kotlin.math.max

 class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : AbstractBackupManager(context) {

-    var parserVersion: Int = version
-        private set
+    val parser: Json = when (version) {
+        2 -> Json {
+            // Forks may have added items to backup
+            ignoreUnknownKeys = true

-    var parser: Gson = initParser()
-
-    /**
-     * Set version of parser
-     *
-     * @param version version of parser
-     */
-    internal fun setVersion(version: Int) {
-        this.parserVersion = version
-        parser = initParser()
-    }
-
-    private fun initParser(): Gson = when (parserVersion) {
-        2 ->
-            GsonBuilder()
-                .registerTypeAdapter<MangaImpl>(MangaTypeAdapter.build())
-                .registerTypeHierarchyAdapter<ChapterImpl>(ChapterTypeAdapter.build())
-                .registerTypeAdapter<CategoryImpl>(CategoryTypeAdapter.build())
-                .registerTypeAdapter<DHistory>(HistoryTypeAdapter.build())
-                .registerTypeHierarchyAdapter<TrackImpl>(TrackTypeAdapter.build())
-                .create()
+            // Register custom serializers
+            serializersModule = SerializersModule {
+                contextual(MangaTypeSerializer)
+                contextual(MangaImplTypeSerializer)
+                contextual(ChapterTypeSerializer)
+                contextual(ChapterImplTypeSerializer)
+                contextual(CategoryTypeSerializer)
+                contextual(CategoryImplTypeSerializer)
+                contextual(TrackTypeSerializer)
+                contextual(TrackImplTypeSerializer)
+                contextual(HistoryTypeSerializer)
+            }
+        }
        else -> throw Exception("Unknown backup version")
    }

@ -85,161 +57,8 @@ class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : Ab
     * @param uri path of Uri
     * @param isJob backup called from job
     */
-    override fun createBackup(uri: Uri, flags: Int, isJob: Boolean): String? {
-        // Create root object
-        val root = JsonObject()
-
-        // Create manga array
-        val mangaEntries = JsonArray()
-
-        // 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 {
-            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 {
-            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() }
-
-                    // Create new file to place backup
-                    dir.createFile(Backup.getDefaultFilename())
-                } else {
-                    UniFile.fromUri(context, uri)
-                }
-                )
-                ?: throw Exception("Couldn't create backup file")
-
-            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
-     *
-     * @param root root of categories json
-     */
-    internal fun backupCategories(root: JsonArray) {
-        val categories = databaseHelper.getCategories().executeAsBlocking()
-        categories.forEach { root.add(parser.toJsonTree(it)) }
-    }
-
-    /**
-     * Convert a manga to Json
-     *
-     * @param manga manga that gets converted
-     * @return [JsonElement] containing manga information
-     */
-    internal fun backupMangaObject(manga: Manga, options: Int): JsonElement {
-        // Entry for this manga
-        val entry = JsonObject()
-
-        // Backup manga fields
-        entry[MANGA] = parser.toJsonTree(manga)
-
-        // Check if user wants chapter information in backup
-        if (options and BACKUP_CHAPTER_MASK == BACKUP_CHAPTER) {
-            // Backup all the chapters
-            val chapters = databaseHelper.getChapters(manga).executeAsBlocking()
-            if (chapters.isNotEmpty()) {
-                val chaptersJson = parser.toJsonTree(chapters)
-                if (chaptersJson.asJsonArray.size() > 0) {
-                    entry[CHAPTERS] = chaptersJson
-                }
-            }
-        }
-
-        // Check if user wants category information in backup
-        if (options and BACKUP_CATEGORY_MASK == BACKUP_CATEGORY) {
-            // Backup categories for this manga
-            val categoriesForManga = databaseHelper.getCategoriesForManga(manga).executeAsBlocking()
-            if (categoriesForManga.isNotEmpty()) {
-                val categoriesNames = categoriesForManga.map { it.name }
-                entry[CATEGORIES] = parser.toJsonTree(categoriesNames)
-            }
-        }
-
-        // Check if user wants track information in backup
-        if (options and BACKUP_TRACK_MASK == BACKUP_TRACK) {
-            val tracks = databaseHelper.getTracks(manga).executeAsBlocking()
-            if (tracks.isNotEmpty()) {
-                entry[TRACK] = parser.toJsonTree(tracks)
-            }
-        }
-
-        // Check if user wants history information in backup
-        if (options and BACKUP_HISTORY_MASK == BACKUP_HISTORY) {
-            val historyForManga = databaseHelper.getHistoryByMangaId(manga.id!!).executeAsBlocking()
-            if (historyForManga.isNotEmpty()) {
-                val historyData = historyForManga.mapNotNull { history ->
-                    val url = databaseHelper.getChapter(history.chapter_id).executeAsBlocking()?.url
-                    url?.let { DHistory(url, history.last_read) }
-                }
-                val historyJson = parser.toJsonTree(historyData)
-                if (historyJson.asJsonArray.size() > 0) {
-                    entry[HISTORY] = historyJson
-                }
-            }
-        }
-
-        return entry
-    }
+    override fun createBackup(uri: Uri, flags: Int, isJob: Boolean) =
+        throw IllegalStateException("Legacy backup creation is not supported")

    fun restoreMangaNoFetch(manga: Manga, dbManga: Manga) {
        manga.id = dbManga.id
@ -249,32 +68,30 @@ class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : Ab
    }

    /**
-     * [Observable] that fetches manga information
+     * Fetches manga information
     *
     * @param source source of manga
     * @param manga manga that needs updating
-     * @return [Observable] that contains manga
+     * @return Updated manga.
     */
-    fun restoreMangaFetchObservable(source: Source, manga: Manga): Observable<Manga> {
-        return source.fetchMangaDetails(manga)
-            .map { networkManga ->
-                manga.copyFrom(networkManga)
-                manga.favorite = true
-                manga.initialized = true
-                manga.id = insertManga(manga)
-                manga
-            }
+    suspend fun fetchManga(source: Source, manga: Manga): Manga {
+        val networkManga = source.getMangaDetails(manga.toMangaInfo())
+        return manga.also {
+            it.copyFrom(networkManga.toSManga())
+            it.favorite = true
+            it.initialized = true
+            it.id = insertManga(manga)
+        }
    }

    /**
     * Restore the categories from Json
     *
-     * @param jsonCategories array containing categories
+     * @param backupCategories array containing categories
     */
-    internal fun restoreCategories(jsonCategories: JsonArray) {
+    internal fun restoreCategories(backupCategories: List<Category>) {
        // Get categories from file and from db
        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
-        val backupCategories = parser.fromJson<List<CategoryImpl>>(jsonCategories)

        // Iterate over them
        backupCategories.forEach { category ->
@ -308,7 +125,7 @@ class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : Ab
     */
    internal fun restoreCategoriesForManga(manga: Manga, categories: List<String>) {
        val dbCategories = databaseHelper.getCategories().executeAsBlocking()
-        val mangaCategoriesToUpdate = mutableListOf<MangaCategory>()
+        val mangaCategoriesToUpdate = ArrayList<MangaCategory>(categories.size)
        for (backupCategoryStr in categories) {
            for (dbCategory in dbCategories) {
                if (backupCategoryStr == dbCategory.name) {
@ -332,7 +149,7 @@ class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : Ab
     */
    internal fun restoreHistoryForManga(history: List<DHistory>) {
        // List containing history to be updated
-        val historyToBeUpdated = mutableListOf<History>()
+        val historyToBeUpdated = ArrayList<History>(history.size)
        for ((url, lastRead) in history) {
            val dbHistory = databaseHelper.getHistoryByChapterUrl(url).executeAsBlocking()
            // Check if history already in database and update
@ -361,14 +178,14 @@ class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : Ab
     * @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>()
+        val trackToUpdate = ArrayList<Track>(tracks.size)

        tracks.forEach { track ->
+            // Fix foreign keys with the current manga id
+            track.manga_id = manga.id!!
+
            val service = trackManager.getService(track.sync_id)
            if (service != null && service.isLogged) {
                var isInDatabase = false
@ -423,12 +240,13 @@ class LegacyBackupManager(context: Context, version: Int = CURRENT_VERSION) : Ab
                chapter.copyFrom(dbChapter)
                break
            }
-        }
-        // Filter the chapters that couldn't be found.
-        chapters.filter { it.id != null }
-        chapters.map { it.manga_id = manga.id }

-        updateChapters(chapters)
+            chapter.manga_id = manga.id
+        }
+
+        // Filter the chapters that couldn't be found.
+        updateChapters(chapters.filter { it.id != null })
+
        return true
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/LegacyBackupRestore.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/LegacyBackupRestore.kt
@ -2,100 +2,92 @@ 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.backup.legacy.models.MangaObject
+import eu.kanade.tachiyomi.data.database.models.Category
 import eu.kanade.tachiyomi.data.database.models.Chapter
-import eu.kanade.tachiyomi.data.database.models.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 kotlinx.serialization.decodeFromString
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.JsonObject
+import kotlinx.serialization.json.decodeFromJsonElement
+import kotlinx.serialization.json.intOrNull
+import kotlinx.serialization.json.jsonPrimitive
+import okio.buffer
+import okio.source
 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
+    override suspend fun performRestore(uri: Uri): Boolean {
+        // Read the json and create a Json Object,
+        // cannot use the backupManager json deserializer one because its not initialized yet
+        val backupObject = Json.decodeFromString<JsonObject>(
+            context.contentResolver.openInputStream(uri)!!.source().buffer().use { it.readUtf8() }
+        )

-        val version = json.get(Backup.VERSION)?.asInt ?: 1
+        // Get parser version
+        val version = backupObject["version"]?.jsonPrimitive?.intOrNull ?: 1
+
+        // Initialize manager
        backupManager = LegacyBackupManager(context, version)

-        val mangasJson = json.get(MANGAS).asJsonArray
-        restoreAmount = mangasJson.size() + 1 // +1 for categories
+        // Decode the json object to a Backup object
+        val backup = backupManager.parser.decodeFromJsonElement<Backup>(backupObject)
+
+        restoreAmount = backup.mangas.size + 1 // +1 for categories

        // Restore categories
-        json.get(Backup.CATEGORIES)?.let { restoreCategories(it) }
+        backup.categories?.let { restoreCategories(it) }

        // Store source mapping for error messages
-        sourceMapping = LegacyBackupRestoreValidator.getSourceMapping(json)
+        sourceMapping = LegacyBackupRestoreValidator.getSourceMapping(backup.extensions ?: emptyList())

        // Restore individual manga
-        mangasJson.forEach {
+        backup.mangas.forEach {
            if (job?.isActive != true) {
                return false
            }

-            restoreManga(it.asJsonObject)
+            restoreManga(it)
        }

        return true
    }

-    private fun restoreCategories(categoriesJson: JsonElement) {
+    private fun restoreCategories(categoriesJson: List<Category>) {
        db.inTransaction {
-            backupManager.restoreCategories(categoriesJson.asJsonArray)
+            backupManager.restoreCategories(categoriesJson)
        }

        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()
-        )
+    private suspend fun restoreManga(mangaJson: MangaObject) {
+        val manga = mangaJson.manga
+        val chapters = mangaJson.chapters ?: emptyList()
+        val categories = mangaJson.categories ?: emptyList()
+        val history = mangaJson.history ?: emptyList()
+        val tracks = mangaJson.track ?: emptyList()
+
+        val source = backupManager.sourceManager.get(manga.source)
+        val sourceName = sourceMapping[manga.source] ?: manga.source.toString()

        try {
-            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} - ${context.getString(R.string.source_not_found_name, sourceName)}")
+                errors.add(Date() to "${manga.title} [$sourceName]: ${context.getString(R.string.source_not_found_name, sourceName)}")
            }
        } catch (e: Exception) {
-            errors.add(Date() to "${manga.title} - ${e.message}")
+            errors.add(Date() to "${manga.title} [$sourceName]: ${e.message}")
        }

        restoreProgress += 1
@ -112,7 +104,7 @@ class LegacyBackupRestore(context: Context, notifier: BackupNotifier) : Abstract
     * @param history history data from json
     * @param tracks tracking data from json
     */
-    private fun restoreMangaData(
+    private suspend fun restoreMangaData(
        manga: Manga,
        source: Source,
        chapters: List<Chapter>,
@ -136,13 +128,13 @@ class LegacyBackupRestore(context: Context, notifier: BackupNotifier) : Abstract
    }

    /**
-     * [Observable] that fetches manga information
+     * 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(
+    private suspend fun restoreMangaFetch(
        source: Source,
        manga: Manga,
        chapters: List<Chapter>,
@ -150,27 +142,21 @@ class LegacyBackupRestore(context: Context, notifier: BackupNotifier) : Abstract
        history: List<DHistory>,
        tracks: List<Track>
    ) {
-        backupManager.restoreMangaFetchObservable(source, manga)
-            .onErrorReturn {
-                errors.add(Date() to "${manga.title} - ${it.message}")
-                manga
-            }
-            .filter { it.id != null }
-            .flatMap {
-                chapterFetchObservable(source, it, chapters)
-                    // Convert to the manga that contains new chapters.
-                    .map { manga }
-            }
-            .doOnNext {
-                restoreExtraForManga(it, categories, history, tracks)
-            }
-            .flatMap {
-                trackingFetchObservable(it, tracks)
-            }
-            .subscribe()
+        try {
+            val fetchedManga = backupManager.fetchManga(source, manga)
+            fetchedManga.id ?: return
+
+            updateChapters(source, fetchedManga, chapters)
+
+            restoreExtraForManga(fetchedManga, categories, history, tracks)
+
+            updateTracking(fetchedManga, tracks)
+        } catch (e: Exception) {
+            errors.add(Date() to "${manga.title} - ${e.message}")
+        }
    }

-    private fun restoreMangaNoFetch(
+    private suspend fun restoreMangaNoFetch(
        source: Source,
        backupManga: Manga,
        chapters: List<Chapter>,
@ -178,22 +164,13 @@ class LegacyBackupRestore(context: Context, notifier: BackupNotifier) : Abstract
        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()
+        if (!backupManager.restoreChaptersForManga(backupManga, chapters)) {
+            updateChapters(source, backupManga, chapters)
+        }
+
+        restoreExtraForManga(backupManga, categories, history, tracks)
+
+        updateTracking(backupManga, tracks)
    }

    private fun restoreExtraForManga(manga: Manga, categories: List<String>, history: List<DHistory>, tracks: List<Track>) {
--- 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
@ -2,12 +2,12 @@ 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
+import kotlinx.serialization.decodeFromString
+import okio.buffer
+import okio.source

 class LegacyBackupRestoreValidator : AbstractBackupRestoreValidator() {
    /**
@ -17,47 +17,45 @@ class LegacyBackupRestoreValidator : AbstractBackupRestoreValidator() {
     * @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 backupManager = LegacyBackupManager(context)

-        val version = json.get(Backup.VERSION)
-        val mangasJson = json.get(Backup.MANGAS)
-        if (version == null || mangasJson == null) {
+        val backup = backupManager.parser.decodeFromString<Backup>(
+            context.contentResolver.openInputStream(uri)!!.source().buffer().use { it.readUtf8() }
+        )
+
+        if (backup.version == null) {
            throw Exception(context.getString(R.string.invalid_backup_file_missing_data))
        }

-        val mangas = mangasJson.asJsonArray
-        if (mangas.size() == 0) {
+        if (backup.mangas.isEmpty()) {
            throw Exception(context.getString(R.string.invalid_backup_file_missing_manga))
        }

-        val sources = getSourceMapping(json)
+        val sources = getSourceMapping(backup.extensions ?: emptyList())
        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 }
+        val trackers = backup.mangas
+            .filterNot { it.track.isNullOrEmpty() }
+            .flatMap { it.track ?: emptyList() }
+            .map { it.sync_id }
            .distinct()
        val missingTrackers = trackers
            .mapNotNull { trackManager.getService(it) }
            .filter { !it.isLogged }
-            .map { it.name }
+            .map { context.getString(it.nameRes()) }
            .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
+        fun getSourceMapping(extensionsMapping: List<String>): Map<Long, String> {
+            return extensionsMapping
                .map {
-                    val items = it.asString.split(":")
+                    val items = it.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
@ -1,25 +1,37 @@
 package eu.kanade.tachiyomi.data.backup.legacy.models

+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.Track
+import kotlinx.serialization.Contextual
+import kotlinx.serialization.Serializable
 import java.text.SimpleDateFormat
 import java.util.Date
 import java.util.Locale

-/**
- * Json values
- */
-object Backup {
-    const val CURRENT_VERSION = 2
-    const val MANGA = "manga"
-    const val MANGAS = "mangas"
-    const val TRACK = "track"
-    const val CHAPTERS = "chapters"
-    const val CATEGORIES = "categories"
-    const val EXTENSIONS = "extensions"
-    const val HISTORY = "history"
-    const val VERSION = "version"
+@Serializable
+data class Backup(
+    val version: Int? = null,
+    var mangas: MutableList<MangaObject> = mutableListOf(),
+    var categories: List<@Contextual Category>? = null,
+    var extensions: List<String>? = null
+) {
+    companion object {
+        const val CURRENT_VERSION = 2

-    fun getDefaultFilename(): String {
-        val date = SimpleDateFormat("yyyy-MM-dd_HH-mm", Locale.getDefault()).format(Date())
-        return "tachiyomi_$date.json"
+        fun getDefaultFilename(): String {
+            val date = SimpleDateFormat("yyyy-MM-dd_HH-mm", Locale.getDefault()).format(Date())
+            return "tachiyomi_$date.json"
+        }
    }
 }
+
+@Serializable
+data class MangaObject(
+    var manga: @Contextual Manga,
+    var chapters: List<@Contextual Chapter>? = null,
+    var categories: List<String>? = null,
+    var track: List<@Contextual Track>? = null,
+    var history: List<@Contextual DHistory>? = null
+)
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/CategoryTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/CategoryTypeAdapter.kt
@ -1,31 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.legacy.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import eu.kanade.tachiyomi.data.database.models.CategoryImpl
-
-/**
- * JSON Serializer used to write / read [CategoryImpl] to / from json
- */
-object CategoryTypeAdapter {
-
-    fun build(): TypeAdapter<CategoryImpl> {
-        return typeAdapter {
-            write {
-                beginArray()
-                value(it.name)
-                value(it.order)
-                endArray()
-            }
-
-            read {
-                beginArray()
-                val category = CategoryImpl()
-                category.name = nextString()
-                category.order = nextInt()
-                endArray()
-                category
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/CategoryTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/CategoryTypeSerializer.kt
@ -0,0 +1,49 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.database.models.Category
+import eu.kanade.tachiyomi.data.database.models.CategoryImpl
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.add
+import kotlinx.serialization.json.buildJsonArray
+import kotlinx.serialization.json.int
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonPrimitive
+
+/**
+ * JSON Serializer used to write / read [CategoryImpl] to / from json
+ */
+open class CategoryBaseSerializer<T : Category> : KSerializer<T> {
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("Category")
+
+    override fun serialize(encoder: Encoder, value: T) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonArray {
+                add(value.name)
+                add(value.order)
+            }
+        )
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun deserialize(decoder: Decoder): T {
+        // make a category impl and cast as T so that the serializer accepts it
+        return CategoryImpl().apply {
+            decoder as JsonDecoder
+            val array = decoder.decodeJsonElement().jsonArray
+            name = array[0].jsonPrimitive.content
+            order = array[1].jsonPrimitive.int
+        } as T
+    }
+}
+
+// Allow for serialization of a category and category impl
+object CategoryTypeSerializer : CategoryBaseSerializer<Category>()
+
+object CategoryImplTypeSerializer : CategoryBaseSerializer<CategoryImpl>()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/ChapterTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/ChapterTypeAdapter.kt
@ -1,59 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.legacy.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import com.google.gson.stream.JsonToken
-import eu.kanade.tachiyomi.data.database.models.ChapterImpl
-
-/**
- * JSON Serializer used to write / read [ChapterImpl] to / from json
- */
-object ChapterTypeAdapter {
-
-    private const val URL = "u"
-    private const val READ = "r"
-    private const val BOOKMARK = "b"
-    private const val LAST_READ = "l"
-
-    fun build(): TypeAdapter<ChapterImpl> {
-        return typeAdapter {
-            write {
-                if (it.read || it.bookmark || it.last_page_read != 0) {
-                    beginObject()
-                    name(URL)
-                    value(it.url)
-                    if (it.read) {
-                        name(READ)
-                        value(1)
-                    }
-                    if (it.bookmark) {
-                        name(BOOKMARK)
-                        value(1)
-                    }
-                    if (it.last_page_read != 0) {
-                        name(LAST_READ)
-                        value(it.last_page_read)
-                    }
-                    endObject()
-                }
-            }
-
-            read {
-                val chapter = ChapterImpl()
-                beginObject()
-                while (hasNext()) {
-                    if (peek() == JsonToken.NAME) {
-                        when (nextName()) {
-                            URL -> chapter.url = nextString()
-                            READ -> chapter.read = nextInt() == 1
-                            BOOKMARK -> chapter.bookmark = nextInt() == 1
-                            LAST_READ -> chapter.last_page_read = nextInt()
-                        }
-                    }
-                }
-                endObject()
-                chapter
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/ChapterTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/ChapterTypeSerializer.kt
@ -0,0 +1,66 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.database.models.Chapter
+import eu.kanade.tachiyomi.data.database.models.ChapterImpl
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.buildJsonObject
+import kotlinx.serialization.json.intOrNull
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.put
+
+/**
+ * JSON Serializer used to write / read [ChapterImpl] to / from json
+ */
+open class ChapterBaseSerializer<T : Chapter> : KSerializer<T> {
+
+    override val descriptor = buildClassSerialDescriptor("Chapter")
+
+    override fun serialize(encoder: Encoder, value: T) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonObject {
+                put(URL, value.url)
+                if (value.read) {
+                    put(READ, 1)
+                }
+                if (value.bookmark) {
+                    put(BOOKMARK, 1)
+                }
+                if (value.last_page_read != 0) {
+                    put(LAST_READ, value.last_page_read)
+                }
+            }
+        )
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun deserialize(decoder: Decoder): T {
+        // make a chapter impl and cast as T so that the serializer accepts it
+        return ChapterImpl().apply {
+            decoder as JsonDecoder
+            val jsonObject = decoder.decodeJsonElement().jsonObject
+            url = jsonObject[URL]!!.jsonPrimitive.content
+            read = jsonObject[READ]?.jsonPrimitive?.intOrNull == 1
+            bookmark = jsonObject[BOOKMARK]?.jsonPrimitive?.intOrNull == 1
+            last_page_read = jsonObject[LAST_READ]?.jsonPrimitive?.intOrNull ?: last_page_read
+        } as T
+    }
+
+    companion object {
+        private const val URL = "u"
+        private const val READ = "r"
+        private const val BOOKMARK = "b"
+        private const val LAST_READ = "l"
+    }
+}
+
+// Allow for serialization of a chapter and chapter impl
+object ChapterTypeSerializer : ChapterBaseSerializer<Chapter>()
+
+object ChapterImplTypeSerializer : ChapterBaseSerializer<ChapterImpl>()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/HistoryTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/HistoryTypeAdapter.kt
@ -1,32 +0,0 @@
-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.legacy.models.DHistory
-
-/**
- * JSON Serializer used to write / read [DHistory] to / from json
- */
-object HistoryTypeAdapter {
-
-    fun build(): TypeAdapter<DHistory> {
-        return typeAdapter {
-            write {
-                if (it.lastRead != 0L) {
-                    beginArray()
-                    value(it.url)
-                    value(it.lastRead)
-                    endArray()
-                }
-            }
-
-            read {
-                beginArray()
-                val url = nextString()
-                val lastRead = nextLong()
-                endArray()
-                DHistory(url, lastRead)
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/HistoryTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/HistoryTypeSerializer.kt
@ -0,0 +1,41 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.backup.legacy.models.DHistory
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.add
+import kotlinx.serialization.json.buildJsonArray
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.long
+
+/**
+ * JSON Serializer used to write / read [DHistory] to / from json
+ */
+object HistoryTypeSerializer : KSerializer<DHistory> {
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("History")
+
+    override fun serialize(encoder: Encoder, value: DHistory) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonArray {
+                add(value.url)
+                add(value.lastRead)
+            }
+        )
+    }
+
+    override fun deserialize(decoder: Decoder): DHistory {
+        decoder as JsonDecoder
+        val array = decoder.decodeJsonElement().jsonArray
+        return DHistory(
+            url = array[0].jsonPrimitive.content,
+            lastRead = array[1].jsonPrimitive.long
+        )
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/MangaTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/MangaTypeAdapter.kt
@ -1,37 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.legacy.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import eu.kanade.tachiyomi.data.database.models.MangaImpl
-
-/**
- * JSON Serializer used to write / read [MangaImpl] to / from json
- */
-object MangaTypeAdapter {
-
-    fun build(): TypeAdapter<MangaImpl> {
-        return typeAdapter {
-            write {
-                beginArray()
-                value(it.url)
-                value(it.title)
-                value(it.source)
-                value(it.viewer)
-                value(it.chapter_flags)
-                endArray()
-            }
-
-            read {
-                beginArray()
-                val manga = MangaImpl()
-                manga.url = nextString()
-                manga.title = nextString()
-                manga.source = nextLong()
-                manga.viewer = nextInt()
-                manga.chapter_flags = nextInt()
-                endArray()
-                manga
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/MangaTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/MangaTypeSerializer.kt
@ -0,0 +1,56 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.data.database.models.MangaImpl
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.add
+import kotlinx.serialization.json.buildJsonArray
+import kotlinx.serialization.json.int
+import kotlinx.serialization.json.jsonArray
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.long
+
+/**
+ * JSON Serializer used to write / read [MangaImpl] to / from json
+ */
+open class MangaBaseSerializer<T : Manga> : KSerializer<T> {
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("Manga")
+
+    override fun serialize(encoder: Encoder, value: T) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonArray {
+                add(value.url)
+                add(value.title)
+                add(value.source)
+                add(value.viewer_flags)
+                add(value.chapter_flags)
+            }
+        )
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun deserialize(decoder: Decoder): T {
+        // make a manga impl and cast as T so that the serializer accepts it
+        return MangaImpl().apply {
+            decoder as JsonDecoder
+            val array = decoder.decodeJsonElement().jsonArray
+            url = array[0].jsonPrimitive.content
+            title = array[1].jsonPrimitive.content
+            source = array[2].jsonPrimitive.long
+            viewer_flags = array[3].jsonPrimitive.int
+            chapter_flags = array[4].jsonPrimitive.int
+        } as T
+    }
+}
+
+// Allow for serialization of a manga and manga impl
+object MangaTypeSerializer : MangaBaseSerializer<Manga>()
+
+object MangaImplTypeSerializer : MangaBaseSerializer<MangaImpl>()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/TrackTypeAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/TrackTypeAdapter.kt
@ -1,59 +0,0 @@
-package eu.kanade.tachiyomi.data.backup.legacy.serializer
-
-import com.github.salomonbrys.kotson.typeAdapter
-import com.google.gson.TypeAdapter
-import com.google.gson.stream.JsonToken
-import eu.kanade.tachiyomi.data.database.models.TrackImpl
-
-/**
- * JSON Serializer used to write / read [TrackImpl] to / from json
- */
-object TrackTypeAdapter {
-
-    private const val SYNC = "s"
-    private const val MEDIA = "r"
-    private const val LIBRARY = "ml"
-    private const val TITLE = "t"
-    private const val LAST_READ = "l"
-    private const val TRACKING_URL = "u"
-
-    fun build(): TypeAdapter<TrackImpl> {
-        return typeAdapter {
-            write {
-                beginObject()
-                name(TITLE)
-                value(it.title)
-                name(SYNC)
-                value(it.sync_id)
-                name(MEDIA)
-                value(it.media_id)
-                name(LIBRARY)
-                value(it.library_id)
-                name(LAST_READ)
-                value(it.last_chapter_read)
-                name(TRACKING_URL)
-                value(it.tracking_url)
-                endObject()
-            }
-
-            read {
-                val track = TrackImpl()
-                beginObject()
-                while (hasNext()) {
-                    if (peek() == JsonToken.NAME) {
-                        when (nextName()) {
-                            TITLE -> track.title = nextString()
-                            SYNC -> track.sync_id = nextInt()
-                            MEDIA -> track.media_id = nextInt()
-                            LIBRARY -> track.library_id = nextLong()
-                            LAST_READ -> track.last_chapter_read = nextInt()
-                            TRACKING_URL -> track.tracking_url = nextString()
-                        }
-                    }
-                }
-                endObject()
-                track
-            }
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/TrackTypeSerializer.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/backup/legacy/serializer/TrackTypeSerializer.kt
@ -0,0 +1,67 @@
+package eu.kanade.tachiyomi.data.backup.legacy.serializer
+
+import eu.kanade.tachiyomi.data.database.models.Track
+import eu.kanade.tachiyomi.data.database.models.TrackImpl
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.descriptors.buildClassSerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.JsonEncoder
+import kotlinx.serialization.json.buildJsonObject
+import kotlinx.serialization.json.int
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import kotlinx.serialization.json.long
+import kotlinx.serialization.json.put
+
+/**
+ * JSON Serializer used to write / read [TrackImpl] to / from json
+ */
+open class TrackBaseSerializer<T : Track> : KSerializer<T> {
+    override val descriptor: SerialDescriptor = buildClassSerialDescriptor("Track")
+
+    override fun serialize(encoder: Encoder, value: T) {
+        encoder as JsonEncoder
+        encoder.encodeJsonElement(
+            buildJsonObject {
+                put(TITLE, value.title)
+                put(SYNC, value.sync_id)
+                put(MEDIA, value.media_id)
+                put(LIBRARY, value.library_id)
+                put(LAST_READ, value.last_chapter_read)
+                put(TRACKING_URL, value.tracking_url)
+            }
+        )
+    }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun deserialize(decoder: Decoder): T {
+        // make a track impl and cast as T so that the serializer accepts it
+        return TrackImpl().apply {
+            decoder as JsonDecoder
+            val jsonObject = decoder.decodeJsonElement().jsonObject
+            title = jsonObject[TITLE]!!.jsonPrimitive.content
+            sync_id = jsonObject[SYNC]!!.jsonPrimitive.int
+            media_id = jsonObject[MEDIA]!!.jsonPrimitive.int
+            library_id = jsonObject[LIBRARY]!!.jsonPrimitive.long
+            last_chapter_read = jsonObject[LAST_READ]!!.jsonPrimitive.int
+            tracking_url = jsonObject[TRACKING_URL]!!.jsonPrimitive.content
+        } as T
+    }
+
+    companion object {
+        private const val SYNC = "s"
+        private const val MEDIA = "r"
+        private const val LIBRARY = "ml"
+        private const val TITLE = "t"
+        private const val LAST_READ = "l"
+        private const val TRACKING_URL = "u"
+    }
+}
+
+// Allow for serialization of a track and track impl
+object TrackTypeSerializer : TrackBaseSerializer<Track>()
+
+object TrackImplTypeSerializer : TrackBaseSerializer<TrackImpl>()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/cache/ChapterCache.kt
@ -2,17 +2,17 @@ package eu.kanade.tachiyomi.data.cache

 import android.content.Context
 import android.text.format.Formatter
-import com.github.salomonbrys.kotson.fromJson
-import com.google.gson.Gson
 import com.jakewharton.disklrucache.DiskLruCache
 import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.source.model.Page
 import eu.kanade.tachiyomi.util.storage.DiskUtil
 import eu.kanade.tachiyomi.util.storage.saveTo
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
 import okhttp3.Response
 import okio.buffer
 import okio.sink
-import rx.Observable
 import uy.kohesive.injekt.injectLazy
 import java.io.File
 import java.io.IOException
@ -42,8 +42,7 @@ class ChapterCache(private val context: Context) {
        const val PARAMETER_CACHE_SIZE = 100L * 1024 * 1024
    }

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

    /** Cache class used for cache management.  */
    private val diskCache = DiskLruCache.open(
@ -56,7 +55,7 @@ class ChapterCache(private val context: Context) {
    /**
     * Returns directory of cache.
     */
-    val cacheDir: File
+    private val cacheDir: File
        get() = diskCache.directory

    /**
@ -71,43 +70,19 @@ class ChapterCache(private val context: Context) {
    val readableSize: String
        get() = Formatter.formatFileSize(context, realSize)

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

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

@ -119,7 +94,7 @@ class ChapterCache(private val context: Context) {
     */
    fun putPageListToCache(chapter: Chapter, pages: List<Page>) {
        // Convert list of pages to json string.
-        val cachedValue = gson.toJson(pages)
+        val cachedValue = json.encodeToString(pages)

        // Initialize the editor (edits the values for an entry).
        var editor: DiskLruCache.Editor? = null
@ -199,6 +174,38 @@ class ChapterCache(private val context: Context) {
        }
    }

+    fun clear(): Int {
+        var deletedFiles = 0
+        cacheDir.listFiles()?.forEach {
+            if (removeFileFromCache(it.name)) {
+                deletedFiles++
+            }
+        }
+        return deletedFiles
+    }
+
+    /**
+     * Remove file from cache.
+     *
+     * @param file name of file "md5.0".
+     * @return status of deletion for the file.
+     */
+    private fun removeFileFromCache(file: String): Boolean {
+        // Make sure we don't delete the journal file (keeps track of cache).
+        if (file == "journal" || file.startsWith("journal.")) {
+            return false
+        }
+
+        return try {
+            // Remove the extension from the file to get the key of the cache
+            val key = file.substringBeforeLast(".")
+            // Remove file from cache.
+            diskCache.remove(key)
+        } catch (e: Exception) {
+            false
+        }
+    }
+
    private fun getKey(chapter: Chapter): String {
        return "${chapter.manga_id}${chapter.url}"
    }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/cache/CoverCache.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/cache/CoverCache.kt
@ -1,6 +1,7 @@
 package eu.kanade.tachiyomi.data.cache

 import android.content.Context
+import coil.imageLoader
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.util.storage.DiskUtil
 import java.io.File
@ -99,6 +100,13 @@ class CoverCache(private val context: Context) {
        }
    }

+    /**
+     * Clear coil's memory cache.
+     */
+    fun clearMemoryCache() {
+        context.imageLoader.memoryCache.clear()
+    }
+
    private fun getCacheDir(dir: String): File {
        return context.getExternalFilesDir(dir)
            ?: File(context.filesDir, dir).also { it.mkdirs() }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/coil/ByteBufferFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/coil/ByteBufferFetcher.kt
@ -0,0 +1,25 @@
+package eu.kanade.tachiyomi.data.coil
+
+import coil.bitmap.BitmapPool
+import coil.decode.DataSource
+import coil.decode.Options
+import coil.fetch.FetchResult
+import coil.fetch.Fetcher
+import coil.fetch.SourceResult
+import coil.size.Size
+import okio.buffer
+import okio.source
+import java.io.ByteArrayInputStream
+import java.nio.ByteBuffer
+
+class ByteBufferFetcher : Fetcher<ByteBuffer> {
+    override suspend fun fetch(pool: BitmapPool, data: ByteBuffer, size: Size, options: Options): FetchResult {
+        return SourceResult(
+            source = ByteArrayInputStream(data.array()).source().buffer(),
+            mimeType = null,
+            dataSource = DataSource.MEMORY
+        )
+    }
+
+    override fun key(data: ByteBuffer): String? = null
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/coil/MangaCoverFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/coil/MangaCoverFetcher.kt
@ -0,0 +1,167 @@
+package eu.kanade.tachiyomi.data.coil
+
+import coil.bitmap.BitmapPool
+import coil.decode.DataSource
+import coil.decode.Options
+import coil.fetch.FetchResult
+import coil.fetch.Fetcher
+import coil.fetch.SourceResult
+import coil.network.HttpException
+import coil.request.get
+import coil.size.Size
+import eu.kanade.tachiyomi.data.cache.CoverCache
+import eu.kanade.tachiyomi.data.database.models.Manga
+import eu.kanade.tachiyomi.network.NetworkHelper
+import eu.kanade.tachiyomi.network.await
+import eu.kanade.tachiyomi.source.SourceManager
+import eu.kanade.tachiyomi.source.online.HttpSource
+import okhttp3.CacheControl
+import okhttp3.Call
+import okhttp3.Request
+import okhttp3.Response
+import okhttp3.ResponseBody
+import okio.buffer
+import okio.sink
+import okio.source
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+import uy.kohesive.injekt.injectLazy
+import java.io.File
+
+/**
+ * Coil component that fetches [Manga] cover while using the cached file in disk when available.
+ *
+ * Available request parameter:
+ * - [USE_CUSTOM_COVER]: Use custom cover if set by user, default is true
+ */
+class MangaCoverFetcher : Fetcher<Manga> {
+    private val coverCache: CoverCache by injectLazy()
+    private val sourceManager: SourceManager by injectLazy()
+    private val defaultClient = Injekt.get<NetworkHelper>().coilClient
+
+    override fun key(data: Manga): String? {
+        if (data.thumbnail_url.isNullOrBlank()) return null
+        return data.thumbnail_url!!
+    }
+
+    override suspend fun fetch(pool: BitmapPool, data: Manga, size: Size, options: Options): FetchResult {
+        // Use custom cover if exists
+        val useCustomCover = options.parameters[USE_CUSTOM_COVER] as? Boolean ?: true
+        val customCoverFile = coverCache.getCustomCoverFile(data)
+        if (useCustomCover && customCoverFile.exists()) {
+            return fileLoader(customCoverFile)
+        }
+
+        val cover = data.thumbnail_url
+        return when (getResourceType(cover)) {
+            Type.URL -> httpLoader(data, options)
+            Type.File -> fileLoader(data)
+            null -> error("Invalid image")
+        }
+    }
+
+    private suspend fun httpLoader(manga: Manga, options: Options): FetchResult {
+        // Only cache separately if it's a library item
+        val coverCacheFile = if (manga.favorite) {
+            coverCache.getCoverFile(manga) ?: error("No cover specified")
+        } else {
+            null
+        }
+
+        if (coverCacheFile?.exists() == true && options.diskCachePolicy.readEnabled) {
+            return fileLoader(coverCacheFile)
+        }
+
+        val (response, body) = awaitGetCall(manga, options)
+        if (!response.isSuccessful) {
+            body.close()
+            throw HttpException(response)
+        }
+
+        if (coverCacheFile != null && options.diskCachePolicy.writeEnabled) {
+            @Suppress("BlockingMethodInNonBlockingContext")
+            response.peekBody(Long.MAX_VALUE).source().use { input ->
+                coverCacheFile.parentFile?.mkdirs()
+                if (coverCacheFile.exists()) {
+                    coverCacheFile.delete()
+                }
+                coverCacheFile.sink().buffer().use { output ->
+                    output.writeAll(input)
+                }
+            }
+        }
+
+        return SourceResult(
+            source = body.source(),
+            mimeType = "image/*",
+            dataSource = if (response.cacheResponse != null) DataSource.DISK else DataSource.NETWORK
+        )
+    }
+
+    private suspend fun awaitGetCall(manga: Manga, options: Options): Pair<Response, ResponseBody> {
+        val call = getCall(manga, options)
+        val response = call.await()
+        return response to checkNotNull(response.body) { "Null response source" }
+    }
+
+    private fun getCall(manga: Manga, options: Options): Call {
+        val source = sourceManager.get(manga.source) as? HttpSource
+        val request = Request.Builder().url(manga.thumbnail_url!!).also {
+            if (source != null) {
+                it.headers(source.headers)
+            }
+
+            val networkRead = options.networkCachePolicy.readEnabled
+            val diskRead = options.diskCachePolicy.readEnabled
+            when {
+                !networkRead && diskRead -> {
+                    it.cacheControl(CacheControl.FORCE_CACHE)
+                }
+                networkRead && !diskRead -> if (options.diskCachePolicy.writeEnabled) {
+                    it.cacheControl(CacheControl.FORCE_NETWORK)
+                } else {
+                    it.cacheControl(CACHE_CONTROL_FORCE_NETWORK_NO_CACHE)
+                }
+                !networkRead && !diskRead -> {
+                    // This causes the request to fail with a 504 Unsatisfiable Request.
+                    it.cacheControl(CACHE_CONTROL_NO_NETWORK_NO_CACHE)
+                }
+            }
+        }.build()
+
+        val client = source?.client?.newBuilder()?.cache(defaultClient.cache)?.build() ?: defaultClient
+        return client.newCall(request)
+    }
+
+    private fun fileLoader(manga: Manga): FetchResult {
+        return fileLoader(File(manga.thumbnail_url!!.substringAfter("file://")))
+    }
+
+    private fun fileLoader(file: File): FetchResult {
+        return SourceResult(
+            source = file.source().buffer(),
+            mimeType = "image/*",
+            dataSource = DataSource.DISK
+        )
+    }
+
+    private fun getResourceType(cover: String?): Type? {
+        return when {
+            cover.isNullOrEmpty() -> null
+            cover.startsWith("http", true) || cover.startsWith("Custom-", true) -> Type.URL
+            cover.startsWith("/") || cover.startsWith("file://") -> Type.File
+            else -> null
+        }
+    }
+
+    private enum class Type {
+        File, URL
+    }
+
+    companion object {
+        const val USE_CUSTOM_COVER = "use_custom_cover"
+
+        private val CACHE_CONTROL_FORCE_NETWORK_NO_CACHE = CacheControl.Builder().noCache().noStore().build()
+        private val CACHE_CONTROL_NO_NETWORK_NO_CACHE = CacheControl.Builder().noCache().onlyIfCached().build()
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/coil/TachiyomiImageDecoder.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/coil/TachiyomiImageDecoder.kt
@ -0,0 +1,53 @@
+package eu.kanade.tachiyomi.data.coil
+
+import android.content.res.Resources
+import android.os.Build
+import androidx.core.graphics.drawable.toDrawable
+import coil.bitmap.BitmapPool
+import coil.decode.DecodeResult
+import coil.decode.Decoder
+import coil.decode.Options
+import coil.size.Size
+import eu.kanade.tachiyomi.util.system.ImageUtil
+import okio.BufferedSource
+import tachiyomi.decoder.ImageDecoder
+
+/**
+ * A [Decoder] that uses built-in [ImageDecoder] to decode images that is not supported by the system.
+ */
+class TachiyomiImageDecoder(private val resources: Resources) : Decoder {
+
+    override fun handles(source: BufferedSource, mimeType: String?): Boolean {
+        val type = source.peek().inputStream().use {
+            ImageUtil.findImageType(it)
+        }
+        return when (type) {
+            ImageUtil.ImageType.AVIF, ImageUtil.ImageType.JXL -> true
+            ImageUtil.ImageType.HEIF -> Build.VERSION.SDK_INT < Build.VERSION_CODES.O
+            else -> false
+        }
+    }
+
+    override suspend fun decode(
+        pool: BitmapPool,
+        source: BufferedSource,
+        size: Size,
+        options: Options
+    ): DecodeResult {
+        val decoder = source.use {
+            ImageDecoder.newInstance(it.inputStream())
+        }
+
+        check(decoder != null && decoder.width > 0 && decoder.height > 0) { "Failed to initialize decoder." }
+
+        val bitmap = decoder.decode(rgb565 = options.allowRgb565)
+        decoder.recycle()
+
+        check(bitmap != null) { "Failed to decode image." }
+
+        return DecodeResult(
+            drawable = bitmap.toDrawable(resources),
+            isSampled = false
+        )
+    }
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/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 = 11
+        const val DATABASE_VERSION = 12
    }

    override fun onCreate(db: SupportSQLiteDatabase) = with(db) {
@ -82,6 +82,9 @@ class DbOpenCallback : SupportSQLiteOpenHelper.Callback(DATABASE_VERSION) {
            db.execSQL(MangaTable.addDateAdded)
            db.execSQL(MangaTable.backfillDateAdded)
        }
+        if (oldVersion < 12) {
+            db.execSQL(MangaTable.addNextUpdateCol)
+        }
    }

    override fun onConfigure(db: SupportSQLiteDatabase) {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/CategoryTypeMapping.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/CategoryTypeMapping.kt
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi.data.database.mappers

-import android.content.ContentValues
 import android.database.Cursor
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.SQLiteTypeMapping
 import com.pushtorefresh.storio.sqlite.operations.delete.DefaultDeleteResolver
 import com.pushtorefresh.storio.sqlite.operations.get.DefaultGetResolver
@ -35,12 +35,13 @@ class CategoryPutResolver : DefaultPutResolver<Category>() {
        .whereArgs(obj.id)
        .build()

-    override fun mapToContentValues(obj: Category) = ContentValues(4).apply {
-        put(COL_ID, obj.id)
-        put(COL_NAME, obj.name)
-        put(COL_ORDER, obj.order)
-        put(COL_FLAGS, obj.flags)
-    }
+    override fun mapToContentValues(obj: Category) =
+        contentValuesOf(
+            COL_ID to obj.id,
+            COL_NAME to obj.name,
+            COL_ORDER to obj.order,
+            COL_FLAGS to obj.flags
+        )
 }

 class CategoryGetResolver : DefaultGetResolver<Category>() {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/ChapterTypeMapping.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/ChapterTypeMapping.kt
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi.data.database.mappers

-import android.content.ContentValues
 import android.database.Cursor
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.SQLiteTypeMapping
 import com.pushtorefresh.storio.sqlite.operations.delete.DefaultDeleteResolver
 import com.pushtorefresh.storio.sqlite.operations.get.DefaultGetResolver
@ -43,20 +43,21 @@ class ChapterPutResolver : DefaultPutResolver<Chapter>() {
        .whereArgs(obj.id)
        .build()

-    override fun mapToContentValues(obj: Chapter) = ContentValues(11).apply {
-        put(COL_ID, obj.id)
-        put(COL_MANGA_ID, obj.manga_id)
-        put(COL_URL, obj.url)
-        put(COL_NAME, obj.name)
-        put(COL_READ, obj.read)
-        put(COL_SCANLATOR, obj.scanlator)
-        put(COL_BOOKMARK, obj.bookmark)
-        put(COL_DATE_FETCH, obj.date_fetch)
-        put(COL_DATE_UPLOAD, obj.date_upload)
-        put(COL_LAST_PAGE_READ, obj.last_page_read)
-        put(COL_CHAPTER_NUMBER, obj.chapter_number)
-        put(COL_SOURCE_ORDER, obj.source_order)
-    }
+    override fun mapToContentValues(obj: Chapter) =
+        contentValuesOf(
+            COL_ID to obj.id,
+            COL_MANGA_ID to obj.manga_id,
+            COL_URL to obj.url,
+            COL_NAME to obj.name,
+            COL_READ to obj.read,
+            COL_SCANLATOR to obj.scanlator,
+            COL_BOOKMARK to obj.bookmark,
+            COL_DATE_FETCH to obj.date_fetch,
+            COL_DATE_UPLOAD to obj.date_upload,
+            COL_LAST_PAGE_READ to obj.last_page_read,
+            COL_CHAPTER_NUMBER to obj.chapter_number,
+            COL_SOURCE_ORDER to obj.source_order
+        )
 }

 class ChapterGetResolver : DefaultGetResolver<Chapter>() {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/HistoryTypeMapping.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/HistoryTypeMapping.kt
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi.data.database.mappers

-import android.content.ContentValues
 import android.database.Cursor
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.SQLiteTypeMapping
 import com.pushtorefresh.storio.sqlite.operations.delete.DefaultDeleteResolver
 import com.pushtorefresh.storio.sqlite.operations.get.DefaultGetResolver
@ -35,12 +35,13 @@ open class HistoryPutResolver : DefaultPutResolver<History>() {
        .whereArgs(obj.id)
        .build()

-    override fun mapToContentValues(obj: History) = ContentValues(4).apply {
-        put(COL_ID, obj.id)
-        put(COL_CHAPTER_ID, obj.chapter_id)
-        put(COL_LAST_READ, obj.last_read)
-        put(COL_TIME_READ, obj.time_read)
-    }
+    override fun mapToContentValues(obj: History) =
+        contentValuesOf(
+            COL_ID to obj.id,
+            COL_CHAPTER_ID to obj.chapter_id,
+            COL_LAST_READ to obj.last_read,
+            COL_TIME_READ to obj.time_read
+        )
 }

 class HistoryGetResolver : DefaultGetResolver<History>() {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/MangaCategoryTypeMapping.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/MangaCategoryTypeMapping.kt
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi.data.database.mappers

-import android.content.ContentValues
 import android.database.Cursor
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.SQLiteTypeMapping
 import com.pushtorefresh.storio.sqlite.operations.delete.DefaultDeleteResolver
 import com.pushtorefresh.storio.sqlite.operations.get.DefaultGetResolver
@ -33,11 +33,12 @@ class MangaCategoryPutResolver : DefaultPutResolver<MangaCategory>() {
        .whereArgs(obj.id)
        .build()

-    override fun mapToContentValues(obj: MangaCategory) = ContentValues(3).apply {
-        put(COL_ID, obj.id)
-        put(COL_MANGA_ID, obj.manga_id)
-        put(COL_CATEGORY_ID, obj.category_id)
-    }
+    override fun mapToContentValues(obj: MangaCategory) =
+        contentValuesOf(
+            COL_ID to obj.id,
+            COL_MANGA_ID to obj.manga_id,
+            COL_CATEGORY_ID to obj.category_id
+        )
 }

 class MangaCategoryGetResolver : DefaultGetResolver<MangaCategory>() {
--- 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
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi.data.database.mappers

-import android.content.ContentValues
 import android.database.Cursor
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.SQLiteTypeMapping
 import com.pushtorefresh.storio.sqlite.operations.delete.DefaultDeleteResolver
 import com.pushtorefresh.storio.sqlite.operations.get.DefaultGetResolver
@ -22,6 +22,7 @@ import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_GENRE
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_ID
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_INITIALIZED
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_LAST_UPDATE
+import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_NEXT_UPDATE
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_SOURCE
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_STATUS
 import eu.kanade.tachiyomi.data.database.tables.MangaTable.COL_THUMBNAIL_URL
@ -48,25 +49,27 @@ class MangaPutResolver : DefaultPutResolver<Manga>() {
        .whereArgs(obj.id)
        .build()

-    override fun mapToContentValues(obj: Manga) = ContentValues(17).apply {
-        put(COL_ID, obj.id)
-        put(COL_SOURCE, obj.source)
-        put(COL_URL, obj.url)
-        put(COL_ARTIST, obj.artist)
-        put(COL_AUTHOR, obj.author)
-        put(COL_DESCRIPTION, obj.description)
-        put(COL_GENRE, obj.genre)
-        put(COL_TITLE, obj.title)
-        put(COL_STATUS, obj.status)
-        put(COL_THUMBNAIL_URL, obj.thumbnail_url)
-        put(COL_FAVORITE, obj.favorite)
-        put(COL_LAST_UPDATE, obj.last_update)
-        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)
-    }
+    override fun mapToContentValues(obj: Manga) =
+        contentValuesOf(
+            COL_ID to obj.id,
+            COL_SOURCE to obj.source,
+            COL_URL to obj.url,
+            COL_ARTIST to obj.artist,
+            COL_AUTHOR to obj.author,
+            COL_DESCRIPTION to obj.description,
+            COL_GENRE to obj.genre,
+            COL_TITLE to obj.title,
+            COL_STATUS to obj.status,
+            COL_THUMBNAIL_URL to obj.thumbnail_url,
+            COL_FAVORITE to obj.favorite,
+            COL_LAST_UPDATE to obj.last_update,
+            COL_NEXT_UPDATE to obj.next_update,
+            COL_INITIALIZED to obj.initialized,
+            COL_VIEWER to obj.viewer_flags,
+            COL_CHAPTER_FLAGS to obj.chapter_flags,
+            COL_COVER_LAST_MODIFIED to obj.cover_last_modified,
+            COL_DATE_ADDED to obj.date_added
+        )
 }

 interface BaseMangaGetResolver {
@ -83,8 +86,9 @@ interface BaseMangaGetResolver {
        thumbnail_url = cursor.getString(cursor.getColumnIndex(COL_THUMBNAIL_URL))
        favorite = cursor.getInt(cursor.getColumnIndex(COL_FAVORITE)) == 1
        last_update = cursor.getLong(cursor.getColumnIndex(COL_LAST_UPDATE))
+        next_update = cursor.getLong(cursor.getColumnIndex(COL_NEXT_UPDATE))
        initialized = cursor.getInt(cursor.getColumnIndex(COL_INITIALIZED)) == 1
-        viewer = cursor.getInt(cursor.getColumnIndex(COL_VIEWER))
+        viewer_flags = 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/mappers/TrackTypeMapping.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/mappers/TrackTypeMapping.kt
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi.data.database.mappers

-import android.content.ContentValues
 import android.database.Cursor
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.SQLiteTypeMapping
 import com.pushtorefresh.storio.sqlite.operations.delete.DefaultDeleteResolver
 import com.pushtorefresh.storio.sqlite.operations.get.DefaultGetResolver
@ -44,21 +44,22 @@ class TrackPutResolver : DefaultPutResolver<Track>() {
        .whereArgs(obj.id)
        .build()

-    override fun mapToContentValues(obj: Track) = ContentValues(10).apply {
-        put(COL_ID, obj.id)
-        put(COL_MANGA_ID, obj.manga_id)
-        put(COL_SYNC_ID, obj.sync_id)
-        put(COL_MEDIA_ID, obj.media_id)
-        put(COL_LIBRARY_ID, obj.library_id)
-        put(COL_TITLE, obj.title)
-        put(COL_LAST_CHAPTER_READ, obj.last_chapter_read)
-        put(COL_TOTAL_CHAPTERS, obj.total_chapters)
-        put(COL_STATUS, obj.status)
-        put(COL_TRACKING_URL, obj.tracking_url)
-        put(COL_SCORE, obj.score)
-        put(COL_START_DATE, obj.started_reading_date)
-        put(COL_FINISH_DATE, obj.finished_reading_date)
-    }
+    override fun mapToContentValues(obj: Track) =
+        contentValuesOf(
+            COL_ID to obj.id,
+            COL_MANGA_ID to obj.manga_id,
+            COL_SYNC_ID to obj.sync_id,
+            COL_MEDIA_ID to obj.media_id,
+            COL_LIBRARY_ID to obj.library_id,
+            COL_TITLE to obj.title,
+            COL_LAST_CHAPTER_READ to obj.last_chapter_read,
+            COL_TOTAL_CHAPTERS to obj.total_chapters,
+            COL_STATUS to obj.status,
+            COL_TRACKING_URL to obj.tracking_url,
+            COL_SCORE to obj.score,
+            COL_START_DATE to obj.started_reading_date,
+            COL_FINISH_DATE to obj.finished_reading_date
+        )
 }

 class TrackGetResolver : DefaultGetResolver<Track>() {
--- 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
@ -1,5 +1,8 @@
 package eu.kanade.tachiyomi.data.database.models

+import eu.kanade.tachiyomi.ui.library.setting.DisplayModeSetting
+import eu.kanade.tachiyomi.ui.library.setting.SortDirectionSetting
+import eu.kanade.tachiyomi.ui.library.setting.SortModeSetting
 import java.io.Serializable

 interface Category : Serializable {
@ -12,6 +15,22 @@ interface Category : Serializable {

    var flags: Int

+    private fun setFlags(flag: Int, mask: Int) {
+        flags = flags and mask.inv() or (flag and mask)
+    }
+
+    var displayMode: Int
+        get() = flags and DisplayModeSetting.MASK
+        set(mode) = setFlags(mode, DisplayModeSetting.MASK)
+
+    var sortMode: Int
+        get() = flags and SortModeSetting.MASK
+        set(mode) = setFlags(mode, SortModeSetting.MASK)
+
+    var sortDirection: Int
+        get() = flags and SortDirectionSetting.MASK
+        set(mode) = setFlags(mode, SortDirectionSetting.MASK)
+
    companion object {

        fun create(name: String): Category = CategoryImpl().apply {
--- 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 +1,8 @@
 package eu.kanade.tachiyomi.data.database.models

 import eu.kanade.tachiyomi.source.model.SManga
+import eu.kanade.tachiyomi.ui.reader.setting.OrientationType
+import eu.kanade.tachiyomi.ui.reader.setting.ReadingModeType
 import tachiyomi.source.model.MangaInfo

 interface Manga : SManga {
@ -11,82 +13,98 @@ interface Manga : SManga {

    var favorite: Boolean

+    // last time the chapter list changed in any way
    var last_update: Long

+    // predicted next update time based on latest (by date) 4 chapters' deltas
+    var next_update: Long
+
    var date_added: Long

-    var viewer: Int
+    var viewer_flags: Int

    var chapter_flags: Int

    var cover_last_modified: Long

    fun setChapterOrder(order: Int) {
-        setFlags(order, SORT_MASK)
+        setChapterFlags(order, CHAPTER_SORT_MASK)
    }

    fun sortDescending(): Boolean {
-        return chapter_flags and SORT_MASK == SORT_DESC
+        return chapter_flags and CHAPTER_SORT_MASK == CHAPTER_SORT_DESC
    }

    fun getGenres(): List<String>? {
        return genre?.split(", ")?.map { it.trim() }
    }

-    private fun setFlags(flag: Int, mask: Int) {
+    private fun setChapterFlags(flag: Int, mask: Int) {
        chapter_flags = chapter_flags and mask.inv() or (flag and mask)
    }

+    private fun setViewerFlags(flag: Int, mask: Int) {
+        viewer_flags = viewer_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
-        set(mode) = setFlags(mode, DISPLAY_MASK)
+        get() = chapter_flags and CHAPTER_DISPLAY_MASK
+        set(mode) = setChapterFlags(mode, CHAPTER_DISPLAY_MASK)

    var readFilter: Int
-        get() = chapter_flags and READ_MASK
-        set(filter) = setFlags(filter, READ_MASK)
+        get() = chapter_flags and CHAPTER_READ_MASK
+        set(filter) = setChapterFlags(filter, CHAPTER_READ_MASK)

    var downloadedFilter: Int
-        get() = chapter_flags and DOWNLOADED_MASK
-        set(filter) = setFlags(filter, DOWNLOADED_MASK)
+        get() = chapter_flags and CHAPTER_DOWNLOADED_MASK
+        set(filter) = setChapterFlags(filter, CHAPTER_DOWNLOADED_MASK)

    var bookmarkedFilter: Int
-        get() = chapter_flags and BOOKMARKED_MASK
-        set(filter) = setFlags(filter, BOOKMARKED_MASK)
+        get() = chapter_flags and CHAPTER_BOOKMARKED_MASK
+        set(filter) = setChapterFlags(filter, CHAPTER_BOOKMARKED_MASK)

    var sorting: Int
-        get() = chapter_flags and SORTING_MASK
-        set(sort) = setFlags(sort, SORTING_MASK)
+        get() = chapter_flags and CHAPTER_SORTING_MASK
+        set(sort) = setChapterFlags(sort, CHAPTER_SORTING_MASK)
+
+    var readingModeType: Int
+        get() = viewer_flags and ReadingModeType.MASK
+        set(readingMode) = setViewerFlags(readingMode, ReadingModeType.MASK)
+
+    var orientationType: Int
+        get() = viewer_flags and OrientationType.MASK
+        set(rotationType) = setViewerFlags(rotationType, OrientationType.MASK)

    companion object {

-        const val SORT_DESC = 0x00000000
-        const val SORT_ASC = 0x00000001
-        const val SORT_MASK = 0x00000001
-
        // Generic filter that does not filter anything
        const val SHOW_ALL = 0x00000000

-        const val SHOW_UNREAD = 0x00000002
-        const val SHOW_READ = 0x00000004
-        const val READ_MASK = 0x00000006
+        const val CHAPTER_SORT_DESC = 0x00000000
+        const val CHAPTER_SORT_ASC = 0x00000001
+        const val CHAPTER_SORT_MASK = 0x00000001

-        const val SHOW_DOWNLOADED = 0x00000008
-        const val SHOW_NOT_DOWNLOADED = 0x00000010
-        const val DOWNLOADED_MASK = 0x00000018
+        const val CHAPTER_SHOW_UNREAD = 0x00000002
+        const val CHAPTER_SHOW_READ = 0x00000004
+        const val CHAPTER_READ_MASK = 0x00000006

-        const val SHOW_BOOKMARKED = 0x00000020
-        const val SHOW_NOT_BOOKMARKED = 0x00000040
-        const val BOOKMARKED_MASK = 0x00000060
+        const val CHAPTER_SHOW_DOWNLOADED = 0x00000008
+        const val CHAPTER_SHOW_NOT_DOWNLOADED = 0x00000010
+        const val CHAPTER_DOWNLOADED_MASK = 0x00000018

-        const val SORTING_SOURCE = 0x00000000
-        const val SORTING_NUMBER = 0x00000100
-        const val SORTING_UPLOAD_DATE = 0x00000200
-        const val SORTING_MASK = 0x00000300
+        const val CHAPTER_SHOW_BOOKMARKED = 0x00000020
+        const val CHAPTER_SHOW_NOT_BOOKMARKED = 0x00000040
+        const val CHAPTER_BOOKMARKED_MASK = 0x00000060

-        const val DISPLAY_NAME = 0x00000000
-        const val DISPLAY_NUMBER = 0x00100000
-        const val DISPLAY_MASK = 0x00100000
+        const val CHAPTER_SORTING_SOURCE = 0x00000000
+        const val CHAPTER_SORTING_NUMBER = 0x00000100
+        const val CHAPTER_SORTING_UPLOAD_DATE = 0x00000200
+        const val CHAPTER_SORTING_MASK = 0x00000300
+
+        const val CHAPTER_DISPLAY_NAME = 0x00000000
+        const val CHAPTER_DISPLAY_NUMBER = 0x00100000
+        const val CHAPTER_DISPLAY_MASK = 0x00100000

        fun create(source: Long): Manga = MangaImpl().apply {
            this.source = source
--- 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
@ -26,11 +26,13 @@ open class MangaImpl : Manga {

    override var last_update: Long = 0

+    override var next_update: Long = 0
+
    override var date_added: Long = 0

    override var initialized: Boolean = false

-    override var viewer: Int = 0
+    override var viewer_flags: Int = 0

    override var chapter_flags: Int = 0

--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/ChapterQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/ChapterQueries.kt
@ -7,6 +7,7 @@ import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.database.models.MangaChapter
 import eu.kanade.tachiyomi.data.database.resolvers.ChapterBackupPutResolver
+import eu.kanade.tachiyomi.data.database.resolvers.ChapterKnownBackupPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.ChapterProgressPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.ChapterSourceOrderPutResolver
 import eu.kanade.tachiyomi.data.database.resolvers.MangaChapterGetResolver
@ -84,6 +85,11 @@ interface ChapterQueries : DbProvider {
        .withPutResolver(ChapterBackupPutResolver())
        .prepare()

+    fun updateKnownChaptersBackup(chapters: List<Chapter>) = db.put()
+        .objects(chapters)
+        .withPutResolver(ChapterKnownBackupPutResolver())
+        .prepare()
+
    fun updateChapterProgress(chapter: Chapter) = db.put()
        .`object`(chapter)
        .withPutResolver(ChapterProgressPutResolver())
--- 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
@ -1,18 +1,13 @@
 package eu.kanade.tachiyomi.data.database.queries

+import com.pushtorefresh.storio.sqlite.operations.get.PreparedGetListOfObjects
 import com.pushtorefresh.storio.sqlite.queries.DeleteQuery
 import com.pushtorefresh.storio.sqlite.queries.Query
 import com.pushtorefresh.storio.sqlite.queries.RawQuery
 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
-import eu.kanade.tachiyomi.data.database.resolvers.MangaTitlePutResolver
-import eu.kanade.tachiyomi.data.database.resolvers.MangaViewerPutResolver
+import eu.kanade.tachiyomi.data.database.resolvers.*
 import eu.kanade.tachiyomi.data.database.tables.CategoryTable
 import eu.kanade.tachiyomi.data.database.tables.ChapterTable
 import eu.kanade.tachiyomi.data.database.tables.MangaCategoryTable
@ -20,15 +15,6 @@ import eu.kanade.tachiyomi.data.database.tables.MangaTable

 interface MangaQueries : DbProvider {

-    fun getMangas() = db.get()
-        .listOfObjects(Manga::class.java)
-        .withQuery(
-            Query.builder()
-                .table(MangaTable.TABLE)
-                .build()
-        )
-        .prepare()
-
    fun getLibraryMangas() = db.get()
        .listOfObjects(LibraryManga::class.java)
        .withQuery(
@ -40,17 +26,21 @@ interface MangaQueries : DbProvider {
        .withGetResolver(LibraryMangaGetResolver.INSTANCE)
        .prepare()

-    fun getFavoriteMangas() = db.get()
-        .listOfObjects(Manga::class.java)
-        .withQuery(
-            Query.builder()
-                .table(MangaTable.TABLE)
-                .where("${MangaTable.COL_FAVORITE} = ?")
-                .whereArgs(1)
-                .orderBy(MangaTable.COL_TITLE)
-                .build()
-        )
-        .prepare()
+    fun getFavoriteMangas(sortByTitle: Boolean = true): PreparedGetListOfObjects<Manga> {
+        var queryBuilder = Query.builder()
+            .table(MangaTable.TABLE)
+            .where("${MangaTable.COL_FAVORITE} = ?")
+            .whereArgs(1)
+
+        if (sortByTitle) {
+            queryBuilder = queryBuilder.orderBy(MangaTable.COL_TITLE)
+        }
+
+        return db.get()
+            .listOfObjects(Manga::class.java)
+            .withQuery(queryBuilder.build())
+            .prepare()
+    }

    fun getManga(url: String, sourceId: Long) = db.get()
        .`object`(Manga::class.java)
@ -78,14 +68,29 @@ interface MangaQueries : DbProvider {

    fun insertMangas(mangas: List<Manga>) = db.put().objects(mangas).prepare()

-    fun updateFlags(manga: Manga) = db.put()
+    fun updateChapterFlags(manga: Manga) = db.put()
        .`object`(manga)
-        .withPutResolver(MangaFlagsPutResolver())
+        .withPutResolver(MangaFlagsPutResolver(MangaTable.COL_CHAPTER_FLAGS, Manga::chapter_flags))
        .prepare()

-    fun updateFlags(mangas: List<Manga>) = db.put()
-        .objects(mangas)
-        .withPutResolver(MangaFlagsPutResolver(true))
+    fun updateChapterFlags(manga: List<Manga>) = db.put()
+        .objects(manga)
+        .withPutResolver(MangaFlagsPutResolver(MangaTable.COL_CHAPTER_FLAGS, Manga::chapter_flags, true))
+        .prepare()
+
+    fun updateViewerFlags(manga: Manga) = db.put()
+        .`object`(manga)
+        .withPutResolver(MangaFlagsPutResolver(MangaTable.COL_VIEWER, Manga::viewer_flags))
+        .prepare()
+
+    fun updateViewerFlags(manga: List<Manga>) = db.put()
+        .objects(manga)
+        .withPutResolver(MangaFlagsPutResolver(MangaTable.COL_VIEWER, Manga::viewer_flags, true))
+        .prepare()
+
+    fun updateNextUpdated(manga: Manga) = db.put()
+        .`object`(manga)
+        .withPutResolver(MangaNextUpdatedPutResolver())
        .prepare()

    fun updateLastUpdated(manga: Manga) = db.put()
@ -98,11 +103,6 @@ interface MangaQueries : DbProvider {
        .withPutResolver(MangaFavoritePutResolver())
        .prepare()

-    fun updateMangaViewer(manga: Manga) = db.put()
-        .`object`(manga)
-        .withPutResolver(MangaViewerPutResolver())
-        .prepare()
-
    fun updateMangaTitle(manga: Manga) = db.put()
        .`object`(manga)
        .withPutResolver(MangaTitlePutResolver())
@ -164,4 +164,14 @@ interface MangaQueries : DbProvider {
                .build()
        )
        .prepare()
+
+    fun getChapterFetchDateManga() = db.get()
+        .listOfObjects(Manga::class.java)
+        .withQuery(
+            RawQuery.builder()
+                .query(getChapterFetchDateMangaQuery())
+                .observesTables(MangaTable.TABLE)
+                .build()
+        )
+        .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
@ -122,6 +122,16 @@ fun getLatestChapterMangaQuery() =
    ORDER by max DESC
 """

+fun getChapterFetchDateMangaQuery() =
+    """
+    SELECT ${Manga.TABLE}.*, MAX(${Chapter.TABLE}.${Chapter.COL_DATE_FETCH}) AS max
+    FROM ${Manga.TABLE}
+    JOIN ${Chapter.TABLE}
+    ON ${Manga.TABLE}.${Manga.COL_ID} = ${Chapter.TABLE}.${Chapter.COL_MANGA_ID}
+    GROUP BY ${Manga.TABLE}.${Manga.COL_ID}
+    ORDER by max DESC
+"""
+
 /**
 * Query to get the categories for a manga.
 */
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/TrackQueries.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/queries/TrackQueries.kt
@ -10,6 +10,15 @@ import eu.kanade.tachiyomi.data.track.TrackService

 interface TrackQueries : DbProvider {

+    fun getTracks() = db.get()
+        .listOfObjects(Track::class.java)
+        .withQuery(
+            Query.builder()
+                .table(TrackTable.TABLE)
+                .build()
+        )
+        .prepare()
+
    fun getTracks(manga: Manga) = db.get()
        .listOfObjects(Track::class.java)
        .withQuery(
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterBackupPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterBackupPutResolver.kt
@ -1,6 +1,6 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
@ -25,9 +25,10 @@ class ChapterBackupPutResolver : PutResolver<Chapter>() {
        .whereArgs(chapter.url)
        .build()

-    fun mapToContentValues(chapter: Chapter) = ContentValues(3).apply {
-        put(ChapterTable.COL_READ, chapter.read)
-        put(ChapterTable.COL_BOOKMARK, chapter.bookmark)
-        put(ChapterTable.COL_LAST_PAGE_READ, chapter.last_page_read)
-    }
+    fun mapToContentValues(chapter: Chapter) =
+        contentValuesOf(
+            ChapterTable.COL_READ to chapter.read,
+            ChapterTable.COL_BOOKMARK to chapter.bookmark,
+            ChapterTable.COL_LAST_PAGE_READ to chapter.last_page_read
+        )
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterKnownBackupPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterKnownBackupPutResolver.kt
@ -0,0 +1,34 @@
+package eu.kanade.tachiyomi.data.database.resolvers
+
+import androidx.core.content.contentValuesOf
+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.Chapter
+import eu.kanade.tachiyomi.data.database.tables.ChapterTable
+
+class ChapterKnownBackupPutResolver : PutResolver<Chapter>() {
+
+    override fun performPut(db: StorIOSQLite, chapter: Chapter) = db.inTransactionReturn {
+        val updateQuery = mapToUpdateQuery(chapter)
+        val contentValues = mapToContentValues(chapter)
+
+        val numberOfRowsUpdated = db.lowLevel().update(updateQuery, contentValues)
+        PutResult.newUpdateResult(numberOfRowsUpdated, updateQuery.table())
+    }
+
+    fun mapToUpdateQuery(chapter: Chapter) = UpdateQuery.builder()
+        .table(ChapterTable.TABLE)
+        .where("${ChapterTable.COL_ID} = ?")
+        .whereArgs(chapter.id)
+        .build()
+
+    fun mapToContentValues(chapter: Chapter) =
+        contentValuesOf(
+            ChapterTable.COL_READ to chapter.read,
+            ChapterTable.COL_BOOKMARK to chapter.bookmark,
+            ChapterTable.COL_LAST_PAGE_READ to chapter.last_page_read
+        )
+}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterProgressPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterProgressPutResolver.kt
@ -1,6 +1,6 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
@ -25,9 +25,10 @@ class ChapterProgressPutResolver : PutResolver<Chapter>() {
        .whereArgs(chapter.id)
        .build()

-    fun mapToContentValues(chapter: Chapter) = ContentValues(3).apply {
-        put(ChapterTable.COL_READ, chapter.read)
-        put(ChapterTable.COL_BOOKMARK, chapter.bookmark)
-        put(ChapterTable.COL_LAST_PAGE_READ, chapter.last_page_read)
-    }
+    fun mapToContentValues(chapter: Chapter) =
+        contentValuesOf(
+            ChapterTable.COL_READ to chapter.read,
+            ChapterTable.COL_BOOKMARK to chapter.bookmark,
+            ChapterTable.COL_LAST_PAGE_READ to chapter.last_page_read
+        )
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterSourceOrderPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/ChapterSourceOrderPutResolver.kt
@ -1,6 +1,6 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
@ -25,7 +25,8 @@ class ChapterSourceOrderPutResolver : PutResolver<Chapter>() {
        .whereArgs(chapter.url, chapter.manga_id)
        .build()

-    fun mapToContentValues(chapter: Chapter) = ContentValues(1).apply {
-        put(ChapterTable.COL_SOURCE_ORDER, chapter.source_order)
-    }
+    fun mapToContentValues(chapter: Chapter) =
+        contentValuesOf(
+            ChapterTable.COL_SOURCE_ORDER to chapter.source_order
+        )
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/HistoryLastReadPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/HistoryLastReadPutResolver.kt
@ -1,7 +1,7 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
 import androidx.annotation.NonNull
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
 import com.pushtorefresh.storio.sqlite.queries.Query
@ -57,7 +57,8 @@ class HistoryLastReadPutResolver : HistoryPutResolver() {
     * Create content query
     * @param history object
     */
-    fun mapToUpdateContentValues(history: History) = ContentValues(1).apply {
-        put(HistoryTable.COL_LAST_READ, history.last_read)
-    }
+    fun mapToUpdateContentValues(history: History) =
+        contentValuesOf(
+            HistoryTable.COL_LAST_READ to history.last_read
+        )
 }
--- 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
@ -1,6 +1,6 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
@ -25,7 +25,8 @@ class MangaCoverLastModifiedPutResolver : PutResolver<Manga>() {
        .whereArgs(manga.id)
        .build()

-    fun mapToContentValues(manga: Manga) = ContentValues(1).apply {
-        put(MangaTable.COL_COVER_LAST_MODIFIED, manga.cover_last_modified)
-    }
+    fun mapToContentValues(manga: Manga) =
+        contentValuesOf(
+            MangaTable.COL_COVER_LAST_MODIFIED to manga.cover_last_modified
+        )
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaFavoritePutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaFavoritePutResolver.kt
@ -1,6 +1,6 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
@ -25,7 +25,8 @@ class MangaFavoritePutResolver : PutResolver<Manga>() {
        .whereArgs(manga.id)
        .build()

-    fun mapToContentValues(manga: Manga) = ContentValues(1).apply {
-        put(MangaTable.COL_FAVORITE, manga.favorite)
-    }
+    fun mapToContentValues(manga: Manga) =
+        contentValuesOf(
+            MangaTable.COL_FAVORITE to manga.favorite
+        )
 }
--- 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
@ -1,6 +1,6 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
@ -8,8 +8,9 @@ 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
+import kotlin.reflect.KProperty1

-class MangaFlagsPutResolver(private val updateAll: Boolean = false) : PutResolver<Manga>() {
+class MangaFlagsPutResolver(private val colName: String, private val fieldGetter: KProperty1<Manga, Int>, private val updateAll: Boolean = false) : PutResolver<Manga>() {

    override fun performPut(db: StorIOSQLite, manga: Manga) = db.inTransactionReturn {
        val updateQuery = mapToUpdateQuery(manga)
@ -35,7 +36,8 @@ class MangaFlagsPutResolver(private val updateAll: Boolean = false) : PutResolve
        }
    }

-    fun mapToContentValues(manga: Manga) = ContentValues(1).apply {
-        put(MangaTable.COL_CHAPTER_FLAGS, manga.chapter_flags)
-    }
+    fun mapToContentValues(manga: Manga) =
+        contentValuesOf(
+            colName to fieldGetter.get(manga)
+        )
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaLastUpdatedPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaLastUpdatedPutResolver.kt
@ -1,6 +1,6 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
@ -25,7 +25,8 @@ class MangaLastUpdatedPutResolver : PutResolver<Manga>() {
        .whereArgs(manga.id)
        .build()

-    fun mapToContentValues(manga: Manga) = ContentValues(1).apply {
-        put(MangaTable.COL_LAST_UPDATE, manga.last_update)
-    }
+    fun mapToContentValues(manga: Manga) =
+        contentValuesOf(
+            MangaTable.COL_LAST_UPDATE to manga.last_update
+        )
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaNextUpdatedPutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaNextUpdatedPutResolver.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 MangaViewerPutResolver : PutResolver<Manga>() {
+class MangaNextUpdatedPutResolver : PutResolver<Manga>() {

    override fun performPut(db: StorIOSQLite, manga: Manga) = db.inTransactionReturn {
        val updateQuery = mapToUpdateQuery(manga)
@ -26,6 +26,6 @@ class MangaViewerPutResolver : PutResolver<Manga>() {
        .build()

    fun mapToContentValues(manga: Manga) = ContentValues(1).apply {
-        put(MangaTable.COL_VIEWER, manga.viewer)
+        put(MangaTable.COL_NEXT_UPDATE, manga.next_update)
    }
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaTitlePutResolver.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaTitlePutResolver.kt
@ -1,6 +1,6 @@
 package eu.kanade.tachiyomi.data.database.resolvers

-import android.content.ContentValues
+import androidx.core.content.contentValuesOf
 import com.pushtorefresh.storio.sqlite.StorIOSQLite
 import com.pushtorefresh.storio.sqlite.operations.put.PutResolver
 import com.pushtorefresh.storio.sqlite.operations.put.PutResult
@ -25,7 +25,8 @@ class MangaTitlePutResolver : PutResolver<Manga>() {
        .whereArgs(manga.id)
        .build()

-    fun mapToContentValues(manga: Manga) = ContentValues(1).apply {
-        put(MangaTable.COL_TITLE, manga.title)
-    }
+    fun mapToContentValues(manga: Manga) =
+        contentValuesOf(
+            MangaTable.COL_TITLE to manga.title
+        )
 }
--- 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_NEXT_UPDATE = "next_update"
+
    const val COL_DATE_ADDED = "date_added"

    const val COL_INITIALIZED = "initialized"
@ -57,6 +59,7 @@ object MangaTable {
            $COL_THUMBNAIL_URL TEXT,
            $COL_FAVORITE INTEGER NOT NULL,
            $COL_LAST_UPDATE LONG,
+            $COL_NEXT_UPDATE LONG,
            $COL_INITIALIZED BOOLEAN NOT NULL,
            $COL_VIEWER INTEGER NOT NULL,
            $COL_CHAPTER_FLAGS INTEGER NOT NULL,
@ -86,4 +89,7 @@ object MangaTable {
            "FROM $TABLE INNER JOIN ${ChapterTable.TABLE} " +
            "ON $TABLE.$COL_ID = ${ChapterTable.TABLE}.${ChapterTable.COL_MANGA_ID} " +
            "GROUP BY $TABLE.$COL_ID)"
+
+    val addNextUpdateCol: String
+        get() = "ALTER TABLE $TABLE ADD COLUMN $COL_NEXT_UPDATE LONG DEFAULT 0"
 }
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadManager.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadManager.kt
@ -12,6 +12,7 @@ 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 eu.kanade.tachiyomi.util.lang.launchIO
 import rx.Observable
 import timber.log.Timber
 import uy.kohesive.injekt.injectLazy
@ -94,6 +95,23 @@ class DownloadManager(private val context: Context) {
        downloader.clearQueue(isNotification)
    }

+    fun startDownloadNow(chapter: Chapter) {
+        val download = downloader.queue.find { it.chapter.id == chapter.id } ?: return
+        val queue = downloader.queue.toMutableList()
+        queue.remove(download)
+        queue.add(0, download)
+        reorderQueue(queue)
+        if (isPaused()) {
+            if (DownloadService.isRunning(context)) {
+                downloader.start()
+            } else {
+                DownloadService.start(context)
+            }
+        }
+    }
+
+    fun isPaused() = downloader.isPaused()
+
    /**
     * Reorders the download queue.
     *
@ -202,6 +220,15 @@ class DownloadManager(private val context: Context) {
        deleteChapters(listOf(download.chapter), download.manga, download.source)
    }

+    fun deletePendingDownloads(vararg downloads: Download) {
+        val downloadsByManga = downloads.groupBy { it.manga.id }
+        downloadsByManga.map { entry ->
+            val manga = entry.value.first().manga
+            val source = entry.value.first().source
+            deleteChapters(entry.value.map { it.chapter }, manga, source)
+        }
+    }
+
    /**
     * Deletes the directories of a list of downloaded chapters.
     *
@ -211,17 +238,35 @@ class DownloadManager(private val context: Context) {
     */
    fun deleteChapters(chapters: List<Chapter>, manga: Manga, source: Source): List<Chapter> {
        val filteredChapters = getChaptersToDelete(chapters)
+        launchIO {
+            removeFromDownloadQueue(filteredChapters)

-        queue.remove(filteredChapters)
+            val chapterDirs = provider.findChapterDirs(filteredChapters, manga, source)
+            chapterDirs.forEach { it.delete() }
+            cache.removeChapters(filteredChapters, manga)
+            if (cache.getDownloadCount(manga) == 0) { // Delete manga directory if empty
+                chapterDirs.firstOrNull()?.parentFile?.delete()
+            }
+        }
+        return filteredChapters
+    }

-        val chapterDirs = provider.findChapterDirs(filteredChapters, manga, source)
-        chapterDirs.forEach { it.delete() }
-        cache.removeChapters(filteredChapters, manga)
-        if (cache.getDownloadCount(manga) == 0) { // Delete manga directory if empty
-            chapterDirs.firstOrNull()?.parentFile?.delete()
+    private fun removeFromDownloadQueue(chapters: List<Chapter>) {
+        val wasRunning = downloader.isRunning
+        if (wasRunning) {
+            downloader.pause()
        }

-        return filteredChapters
+        downloader.queue.remove(chapters)
+
+        if (wasRunning) {
+            if (downloader.queue.isEmpty()) {
+                DownloadService.stop(context)
+                downloader.stop()
+            } else if (downloader.queue.isNotEmpty()) {
+                downloader.start()
+            }
+        }
    }

    /**
@ -231,9 +276,11 @@ class DownloadManager(private val context: Context) {
     * @param source the source of the manga.
     */
    fun deleteManga(manga: Manga, source: Source) {
-        queue.remove(manga)
-        provider.findMangaDir(manga, source)?.delete()
-        cache.removeManga(manga)
+        launchIO {
+            downloader.queue.remove(manga)
+            provider.findMangaDir(manga, source)?.delete()
+            cache.removeManga(manga)
+        }
    }

    /**
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadNotifier.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadNotifier.kt
@ -27,6 +27,8 @@ internal class DownloadNotifier(private val context: Context) {
    private val progressNotificationBuilder by lazy {
        context.notificationBuilder(Notifications.CHANNEL_DOWNLOADER_PROGRESS) {
            setLargeIcon(BitmapFactory.decodeResource(context.resources, R.mipmap.ic_launcher))
+            setAutoCancel(false)
+            setOnlyAlertOnce(true)
        }
    }

@ -66,15 +68,6 @@ internal class DownloadNotifier(private val context: Context) {
        context.notificationManager.notify(id, build())
    }

-    /**
-     * Clear old actions if they exist.
-     */
-    private fun NotificationCompat.Builder.clearActions() {
-        if (mActions.isNotEmpty()) {
-            mActions.clear()
-        }
-    }
-
    /**
     * Dismiss the downloader's notification. Downloader error notifications use a different id, so
     * those can only be dismissed by the user.
@ -90,10 +83,8 @@ internal class DownloadNotifier(private val context: Context) {
     */
    fun onProgressChange(download: Download) {
        with(progressNotificationBuilder) {
-            // Check if first call.
            if (!isDownloading) {
                setSmallIcon(android.R.drawable.stat_sys_download)
-                setAutoCancel(false)
                clearActions()
                // Open download manager when clicked
                setContentIntent(NotificationHandler.openDownloadManagerPendingActivity(context))
@ -123,6 +114,7 @@ internal class DownloadNotifier(private val context: Context) {
            }

            setProgress(download.pages!!.size, download.downloadedImages, false)
+            setOngoing(true)

            show(Notifications.ID_DOWNLOAD_CHAPTER_PROGRESS)
        }
@ -136,8 +128,8 @@ internal class DownloadNotifier(private val context: Context) {
            setContentTitle(context.getString(R.string.chapter_paused))
            setContentText(context.getString(R.string.download_notifier_download_paused))
            setSmallIcon(R.drawable.ic_pause_24dp)
-            setAutoCancel(false)
            setProgress(0, 0, false)
+            setOngoing(false)
            clearActions()
            // Open download manager when clicked
            setContentIntent(NotificationHandler.openDownloadManagerPendingActivity(context))
@ -165,6 +157,8 @@ internal class DownloadNotifier(private val context: Context) {
     *  This function shows a notification to inform download tasks are done.
     */
    fun onComplete() {
+        dismissProgress()
+
        if (!errorThrown) {
            // Create notification
            with(completeNotificationBuilder) {
@ -224,7 +218,6 @@ internal class DownloadNotifier(private val context: Context) {
            setContentText(error ?: context.getString(R.string.download_notifier_unknown_error))
            setSmallIcon(android.R.drawable.stat_sys_warning)
            clearActions()
-            setAutoCancel(false)
            setContentIntent(NotificationHandler.openDownloadManagerPendingActivity(context))
            setProgress(0, 0, false)

--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadProvider.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadProvider.kt
@ -9,11 +9,10 @@ import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.source.Source
 import eu.kanade.tachiyomi.util.storage.DiskUtil
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.Job
+import kotlinx.coroutines.MainScope
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
+import timber.log.Timber
 import uy.kohesive.injekt.injectLazy

 /**
@ -26,7 +25,7 @@ class DownloadProvider(private val context: Context) {

    private val preferences: PreferencesHelper by injectLazy()

-    private val scope = CoroutineScope(Job() + Dispatchers.Main)
+    private val scope = MainScope()

    /**
     * The root directory for downloads.
@ -54,7 +53,8 @@ class DownloadProvider(private val context: Context) {
            return downloadsDir
                .createDirectory(getSourceDirName(source))
                .createDirectory(getMangaDirName(manga))
-        } catch (e: NullPointerException) {
+        } catch (e: Throwable) {
+            Timber.e(e, "Invalid download directory")
            throw Exception(context.getString(R.string.invalid_download_dir))
        }
    }
@ -65,7 +65,7 @@ class DownloadProvider(private val context: Context) {
     * @param source the source to query.
     */
    fun findSourceDir(source: Source): UniFile? {
-        return downloadsDir.findFile(getSourceDirName(source))
+        return downloadsDir.findFile(getSourceDirName(source), true)
    }

    /**
@ -76,7 +76,7 @@ class DownloadProvider(private val context: Context) {
     */
    fun findMangaDir(manga: Manga, source: Source): UniFile? {
        val sourceDir = findSourceDir(source)
-        return sourceDir?.findFile(getMangaDirName(manga))
+        return sourceDir?.findFile(getMangaDirName(manga), true)
    }

    /**
@ -89,7 +89,7 @@ class DownloadProvider(private val context: Context) {
    fun findChapterDir(chapter: Chapter, manga: Manga, source: Source): UniFile? {
        val mangaDir = findMangaDir(manga, source)
        return getValidChapterDirNames(chapter).asSequence()
-            .mapNotNull { mangaDir?.findFile(it) }
+            .mapNotNull { mangaDir?.findFile(it, true) }
            .firstOrNull()
    }

@ -115,7 +115,7 @@ class DownloadProvider(private val context: Context) {
     * @param source the source to query.
     */
    fun getSourceDirName(source: Source): String {
-        return source.toString()
+        return DiskUtil.buildValidFilename(source.toString())
    }

    /**
@ -150,6 +150,7 @@ class DownloadProvider(private val context: Context) {
        return listOf(
            getChapterDirName(chapter),

+            // TODO: remove this
            // 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
@ -19,6 +19,7 @@ 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.isServiceRunning
 import eu.kanade.tachiyomi.util.system.notification
 import eu.kanade.tachiyomi.util.system.toast
 import rx.android.schedulers.AndroidSchedulers
@ -58,6 +59,16 @@ class DownloadService : Service() {
        fun stop(context: Context) {
            context.stopService(Intent(context, DownloadService::class.java))
        }
+
+        /**
+         * Returns the status of the service.
+         *
+         * @param context the application context.
+         * @return true if the service is running, false otherwise.
+         */
+        fun isRunning(context: Context): Boolean {
+            return context.isServiceRunning(DownloadService::class.java)
+        }
    }

    private val downloadManager: DownloadManager by injectLazy()
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/Downloader.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/Downloader.kt
@ -16,8 +16,8 @@ import eu.kanade.tachiyomi.source.model.Page
 import eu.kanade.tachiyomi.source.online.HttpSource
 import eu.kanade.tachiyomi.source.online.fetchAllImageUrlsFromPageList
 import eu.kanade.tachiyomi.util.lang.RetryWithDelay
+import eu.kanade.tachiyomi.util.lang.launchIO
 import eu.kanade.tachiyomi.util.lang.launchNow
-import eu.kanade.tachiyomi.util.lang.launchUI
 import eu.kanade.tachiyomi.util.lang.plusAssign
 import eu.kanade.tachiyomi.util.storage.DiskUtil
 import eu.kanade.tachiyomi.util.storage.saveTo
@ -114,8 +114,8 @@ class Downloader(
            initializeSubscriptions()
        }

-        val pending = queue.filter { it.status != Download.DOWNLOADED }
-        pending.forEach { if (it.status != Download.QUEUE) it.status = Download.QUEUE }
+        val pending = queue.filter { it.status != Download.State.DOWNLOADED }
+        pending.forEach { if (it.status != Download.State.QUEUE) it.status = Download.State.QUEUE }

        notifier.paused = false

@ -129,20 +129,21 @@ class Downloader(
    fun stop(reason: String? = null) {
        destroySubscriptions()
        queue
-            .filter { it.status == Download.DOWNLOADING }
-            .forEach { it.status = Download.ERROR }
+            .filter { it.status == Download.State.DOWNLOADING }
+            .forEach { it.status = Download.State.ERROR }

        if (reason != null) {
            notifier.onWarning(reason)
-        } else {
-            if (notifier.paused) {
-                notifier.paused = false
-                notifier.onPaused()
-            } else {
-                notifier.dismissProgress()
-                notifier.onComplete()
-            }
+            return
        }
+
+        if (notifier.paused && !queue.isEmpty()) {
+            notifier.onPaused()
+        } else {
+            notifier.onComplete()
+        }
+
+        notifier.paused = false
    }

    /**
@ -151,11 +152,16 @@ class Downloader(
    fun pause() {
        destroySubscriptions()
        queue
-            .filter { it.status == Download.DOWNLOADING }
-            .forEach { it.status = Download.QUEUE }
+            .filter { it.status == Download.State.DOWNLOADING }
+            .forEach { it.status = Download.State.QUEUE }
        notifier.paused = true
    }

+    /**
+     * Check if downloader is paused
+     */
+    fun isPaused() = !isRunning
+
    /**
     * Removes everything from the queue.
     *
@ -167,8 +173,8 @@ class Downloader(
        // Needed to update the chapter view
        if (isNotification) {
            queue
-                .filter { it.status == Download.QUEUE }
-                .forEach { it.status = Download.NOT_DOWNLOADED }
+                .filter { it.status == Download.State.QUEUE }
+                .forEach { it.status = Download.State.NOT_DOWNLOADED }
        }
        queue.clear()
        notifier.dismissProgress()
@ -227,8 +233,8 @@ class Downloader(
     * @param chapters the list of chapters to download.
     * @param autoStart whether to start the downloader after enqueing the chapters.
     */
-    fun queueChapters(manga: Manga, chapters: List<Chapter>, autoStart: Boolean) = launchUI {
-        val source = sourceManager.get(manga.source) as? HttpSource ?: return@launchUI
+    fun queueChapters(manga: Manga, chapters: List<Chapter>, autoStart: Boolean) = launchIO {
+        val source = sourceManager.get(manga.source) as? HttpSource ?: return@launchIO
        val wasEmpty = queue.isEmpty()
        // Called in background thread, the operation can be slow with SAF.
        val chaptersWithoutDir = async {
@ -271,7 +277,7 @@ class Downloader(

        val availSpace = DiskUtil.getAvailableStorageSpace(mangaDir)
        if (availSpace != -1L && availSpace < MIN_DISK_SPACE) {
-            download.status = Download.ERROR
+            download.status = Download.State.ERROR
            notifier.onError(context.getString(R.string.download_insufficient_space), download.chapter.name)
            return@defer Observable.just(download)
        }
@ -301,7 +307,7 @@ class Downloader(
                    ?.forEach { it.delete() }

                download.downloadedImages = 0
-                download.status = Download.DOWNLOADING
+                download.status = Download.State.DOWNLOADING
            }
            // Get all the URLs to the source images, fetch pages if necessary
            .flatMap { download.source.fetchAllImageUrlsFromPageList(it) }
@ -317,7 +323,7 @@ class Downloader(
            .doOnNext { ensureSuccessfulDownload(download, mangaDir, tmpDir, chapterDirname) }
            // If the page list threw, it will resume here
            .onErrorReturn { error ->
-                download.status = Download.ERROR
+                download.status = Download.State.ERROR
                notifier.onError(error.message, download.chapter.name)
                download
            }
@ -457,13 +463,13 @@ class Downloader(
        val downloadedImages = tmpDir.listFiles().orEmpty().filterNot { it.name!!.endsWith(".tmp") }

        download.status = if (downloadedImages.size == download.pages!!.size) {
-            Download.DOWNLOADED
+            Download.State.DOWNLOADED
        } else {
-            Download.ERROR
+            Download.State.ERROR
        }

        // Only rename the directory if it's downloaded.
-        if (download.status == Download.DOWNLOADED) {
+        if (download.status == Download.State.DOWNLOADED) {
            tmpDir.renameTo(dirname)
            cache.addChapter(dirname, mangaDir, download.manga)

@ -476,7 +482,7 @@ class Downloader(
     */
    private fun completeDownload(download: Download) {
        // Delete successful downloads from queue
-        if (download.status == Download.DOWNLOADED) {
+        if (download.status == Download.State.DOWNLOADED) {
            // remove downloaded chapter from queue
            queue.remove(download)
        }
@ -489,7 +495,7 @@ class Downloader(
     * Returns true if all the queued downloads are in DOWNLOADED or ERROR state.
     */
    private fun areAllDownloadsFinished(): Boolean {
-        return queue.none { it.status <= Download.DOWNLOADING }
+        return queue.none { it.status.value <= Download.State.DOWNLOADING.value }
    }

    companion object {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/download/model/Download.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/download/model/Download.kt
@ -20,7 +20,7 @@ class Download(val source: HttpSource, val manga: Manga, val chapter: Chapter) {

    @Volatile
    @Transient
-    var status: Int = 0
+    var status: State = State.NOT_DOWNLOADED
        set(status) {
            field = status
            statusSubject?.onNext(this)
@ -47,11 +47,11 @@ class Download(val source: HttpSource, val manga: Manga, val chapter: Chapter) {
        statusCallback = f
    }

-    companion object {
-        const val NOT_DOWNLOADED = 0
-        const val QUEUE = 1
-        const val DOWNLOADING = 2
-        const val DOWNLOADED = 3
-        const val ERROR = 4
+    enum class State(val value: Int) {
+        NOT_DOWNLOADED(0),
+        QUEUE(1),
+        DOWNLOADING(2),
+        DOWNLOADED(3),
+        ERROR(4),
    }
 }
--- 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
@ -22,7 +22,7 @@ class DownloadQueue(
        downloads.forEach { download ->
            download.setStatusSubject(statusSubject)
            download.setStatusCallback(::setPagesFor)
-            download.status = Download.QUEUE
+            download.status = Download.State.QUEUE
        }
        queue.addAll(downloads)
        store.addAll(downloads)
@ -34,8 +34,8 @@ class DownloadQueue(
        store.remove(download)
        download.setStatusSubject(null)
        download.setStatusCallback(null)
-        if (download.status == Download.DOWNLOADING || download.status == Download.QUEUE) {
-            download.status = Download.NOT_DOWNLOADED
+        if (download.status == Download.State.DOWNLOADING || download.status == Download.State.QUEUE) {
+            download.status = Download.State.NOT_DOWNLOADED
        }
        if (removed) {
            updatedRelay.call(Unit)
@ -60,8 +60,8 @@ class DownloadQueue(
        queue.forEach { download ->
            download.setStatusSubject(null)
            download.setStatusCallback(null)
-            if (download.status == Download.DOWNLOADING || download.status == Download.QUEUE) {
-                download.status = Download.NOT_DOWNLOADED
+            if (download.status == Download.State.DOWNLOADING || download.status == Download.State.QUEUE) {
+                download.status = Download.State.NOT_DOWNLOADED
            }
        }
        queue.clear()
@ -70,7 +70,7 @@ class DownloadQueue(
    }

    fun getActiveDownloads(): Observable<Download> =
-        Observable.from(this).filter { download -> download.status == Download.DOWNLOADING }
+        Observable.from(this).filter { download -> download.status == Download.State.DOWNLOADING }

    fun getStatusObservable(): Observable<Download> = statusSubject.onBackpressureBuffer()

@ -79,7 +79,7 @@ class DownloadQueue(
        .map { this }

    private fun setPagesFor(download: Download) {
-        if (download.status == Download.DOWNLOADED || download.status == Download.ERROR) {
+        if (download.status == Download.State.DOWNLOADED || download.status == Download.State.ERROR) {
            setPagesSubject(download.pages, null)
        }
    }
@ -88,19 +88,19 @@ class DownloadQueue(
        return statusSubject.onBackpressureBuffer()
            .startWith(getActiveDownloads())
            .flatMap { download ->
-                if (download.status == Download.DOWNLOADING) {
+                if (download.status == Download.State.DOWNLOADING) {
                    val pageStatusSubject = PublishSubject.create<Int>()
                    setPagesSubject(download.pages, pageStatusSubject)
                    return@flatMap pageStatusSubject
                        .onBackpressureBuffer()
                        .filter { it == Page.READY }
                        .map { download }
-                } else if (download.status == Download.DOWNLOADED || download.status == Download.ERROR) {
+                } else if (download.status == Download.State.DOWNLOADED || download.status == Download.State.ERROR) {
                    setPagesSubject(download.pages, null)
                }
                Observable.just(download)
            }
-            .filter { it.status == Download.DOWNLOADING }
+            .filter { it.status == Download.State.DOWNLOADING }
    }

    private fun setPagesSubject(pages: List<Page>?, subject: PublishSubject<Int>?) {
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/FileFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/FileFetcher.kt
@ -1,60 +0,0 @@
-package eu.kanade.tachiyomi.data.glide
-
-import android.content.ContentValues.TAG
-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
-
-open class FileFetcher(private val filePath: String = "") : DataFetcher<InputStream> {
-
-    private var data: InputStream? = null
-
-    override fun loadData(priority: Priority, callback: DataFetcher.DataCallback<in InputStream>) {
-        loadFromFile(callback)
-    }
-
-    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) {
-            if (Log.isLoggable(TAG, Log.DEBUG)) {
-                Timber.d(e, "Failed to open file")
-            }
-            callback.onLoadFailed(e)
-            return
-        }
-
-        callback.onDataReady(data)
-    }
-
-    override fun cleanup() {
-        try {
-            data?.close()
-        } catch (e: IOException) {
-            // Ignored.
-        }
-    }
-
-    override fun cancel() {
-        // Do nothing.
-    }
-
-    override fun getDataClass(): Class<InputStream> {
-        return InputStream::class.java
-    }
-
-    override fun getDataSource(): DataSource {
-        return DataSource.LOCAL
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/LibraryMangaCustomCoverFetcher.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/LibraryMangaCustomCoverFetcher.kt
@ -1,25 +0,0 @@
-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
@ -1,86 +0,0 @@
-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
-import java.io.InputStream
-
-/**
- * A [DataFetcher] for loading a cover of a library manga.
- * It tries to load the cover from our custom cache, and if it's not found, it fallbacks to network
- * and copies the result to the cache.
- *
- * @param networkFetcher the network fetcher for this cover.
- * @param manga the manga of the cover to load.
- * @param file the file where this cover should be. It may exists or not.
- */
-class LibraryMangaUrlFetcher(
-    private val networkFetcher: DataFetcher<InputStream>,
-    private val manga: Manga,
-    private val coverCache: CoverCache
-) : LibraryMangaCustomCoverFetcher(manga, coverCache) {
-
-    override fun loadData(priority: Priority, callback: DataFetcher.DataCallback<in InputStream>) {
-        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(cover.path + ".tmp")
-                            try {
-                                // Retrieve destination stream, create parent folders if needed.
-                                val output = try {
-                                    tmpFile.outputStream()
-                                } catch (e: FileNotFoundException) {
-                                    tmpFile.parentFile!!.mkdirs()
-                                    tmpFile.outputStream()
-                                }
-
-                                // Copy the file and rename to the original.
-                                data.use { output.use { data.copyTo(output) } }
-                                tmpFile.renameTo(cover)
-                                loadFromFile(cover, callback)
-                            } catch (e: Exception) {
-                                tmpFile.delete()
-                                callback.onLoadFailed(e)
-                            }
-                        } else {
-                            callback.onLoadFailed(Exception("Null data"))
-                        }
-                    }
-
-                    override fun onLoadFailed(e: Exception) {
-                        callback.onLoadFailed(e)
-                    }
-                }
-            )
-        } else {
-            loadFromFile(cover, callback)
-        }
-    }
-
-    override fun cleanup() {
-        super.cleanup()
-        networkFetcher.cleanup()
-    }
-
-    override fun cancel() {
-        super.cancel()
-        networkFetcher.cancel()
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaThumbnail.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/MangaThumbnail.kt
@ -1,15 +0,0 @@
-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 coverLastModified: Long) : Key {
-    val key = manga.url + coverLastModified
-
-    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
@ -1,134 +0,0 @@
-package eu.kanade.tachiyomi.data.glide
-
-import com.bumptech.glide.integration.okhttp3.OkHttpStreamFetcher
-import com.bumptech.glide.load.Options
-import com.bumptech.glide.load.model.GlideUrl
-import com.bumptech.glide.load.model.Headers
-import com.bumptech.glide.load.model.LazyHeaders
-import com.bumptech.glide.load.model.ModelLoader
-import com.bumptech.glide.load.model.ModelLoaderFactory
-import com.bumptech.glide.load.model.MultiModelLoaderFactory
-import eu.kanade.tachiyomi.data.cache.CoverCache
-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 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.
- * Coupled with [LibraryMangaUrlFetcher], this class allows to implement the following flow:
- *
- * - Check in RAM LRU.
- * - Check in disk LRU.
- * - Check in this module.
- * - Fetch from the network connection.
- *
- * @param context the application context.
- */
-class MangaThumbnailModelLoader : ModelLoader<MangaThumbnail, InputStream> {
-
-    /**
-     * Cover cache where persistent covers are stored.
-     */
-    private val coverCache: CoverCache by injectLazy()
-
-    /**
-     * Source manager.
-     */
-    private val sourceManager: SourceManager by injectLazy()
-
-    /**
-     * Default network client.
-     */
-    private val defaultClient = Injekt.get<NetworkHelper>().client
-
-    /**
-     * Map where request headers are stored for a source.
-     */
-    private val cachedHeaders = hashMapOf<Long, LazyHeaders>()
-
-    /**
-     * Factory class for creating [MangaThumbnailModelLoader] instances.
-     */
-    class Factory : ModelLoaderFactory<MangaThumbnail, InputStream> {
-
-        override fun build(multiFactory: MultiModelLoaderFactory): ModelLoader<MangaThumbnail, InputStream> {
-            return MangaThumbnailModelLoader()
-        }
-
-        override fun teardown() {}
-    }
-
-    override fun handles(model: MangaThumbnail): Boolean {
-        return true
-    }
-
-    /**
-     * Returns a fetcher for the given manga or null if the url is empty.
-     *
-     * @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.
-     */
-    override fun buildLoadData(
-        mangaThumbnail: MangaThumbnail,
-        width: Int,
-        height: Int,
-        options: Options
-    ): ModelLoader.LoadData<InputStream>? {
-        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
-            val glideUrl = GlideUrl(url, getHeaders(manga, source))
-
-            // Get the resource fetcher for this request url.
-            val networkFetcher = OkHttpStreamFetcher(source?.client ?: defaultClient, glideUrl)
-
-            if (!manga.favorite) {
-                return ModelLoader.LoadData(glideUrl, networkFetcher)
-            }
-
-            val libraryFetcher = LibraryMangaUrlFetcher(networkFetcher, manga, coverCache)
-
-            // Return an instance of the fetcher providing the needed elements.
-            return ModelLoader.LoadData(mangaThumbnail, libraryFetcher)
-        } else {
-            // Return an instance of the fetcher providing the needed elements.
-            return ModelLoader.LoadData(mangaThumbnail, FileFetcher(url.removePrefix("file://")))
-        }
-    }
-
-    /**
-     * Returns the request headers for a source copying its OkHttp headers and caching them.
-     *
-     * @param manga the model.
-     */
-    private fun getHeaders(manga: Manga, source: HttpSource?): Headers {
-        if (source == null) return LazyHeaders.DEFAULT
-
-        return cachedHeaders.getOrPut(manga.source) {
-            LazyHeaders.Builder().apply {
-                val nullStr: String? = null
-                setHeader("User-Agent", nullStr)
-                for ((key, value) in source.headers.toMultimap()) {
-                    addHeader(key, value[0])
-                }
-            }.build()
-        }
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/PassthroughModelLoader.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/PassthroughModelLoader.kt
@ -1,72 +0,0 @@
-package eu.kanade.tachiyomi.data.glide
-
-import com.bumptech.glide.Priority
-import com.bumptech.glide.load.DataSource
-import com.bumptech.glide.load.Options
-import com.bumptech.glide.load.data.DataFetcher
-import com.bumptech.glide.load.model.ModelLoader
-import com.bumptech.glide.load.model.ModelLoaderFactory
-import com.bumptech.glide.load.model.MultiModelLoaderFactory
-import com.bumptech.glide.signature.ObjectKey
-import java.io.IOException
-import java.io.InputStream
-
-class PassthroughModelLoader : ModelLoader<InputStream, InputStream> {
-
-    override fun buildLoadData(
-        model: InputStream,
-        width: Int,
-        height: Int,
-        options: Options
-    ): ModelLoader.LoadData<InputStream>? {
-        return ModelLoader.LoadData(ObjectKey(model), Fetcher(model))
-    }
-
-    override fun handles(model: InputStream): Boolean {
-        return true
-    }
-
-    class Fetcher(private val stream: InputStream) : DataFetcher<InputStream> {
-
-        override fun getDataClass(): Class<InputStream> {
-            return InputStream::class.java
-        }
-
-        override fun cleanup() {
-            try {
-                stream.close()
-            } catch (e: IOException) {
-                // Do nothing
-            }
-        }
-
-        override fun getDataSource(): DataSource {
-            return DataSource.LOCAL
-        }
-
-        override fun cancel() {
-            // Do nothing
-        }
-
-        override fun loadData(
-            priority: Priority,
-            callback: DataFetcher.DataCallback<in InputStream>
-        ) {
-            callback.onDataReady(stream)
-        }
-    }
-
-    /**
-     * Factory class for creating [PassthroughModelLoader] instances.
-     */
-    class Factory : ModelLoaderFactory<InputStream, InputStream> {
-
-        override fun build(
-            multiFactory: MultiModelLoaderFactory
-        ): ModelLoader<InputStream, InputStream> {
-            return PassthroughModelLoader()
-        }
-
-        override fun teardown() {}
-    }
-}
--- a/app/src/main/java/eu/kanade/tachiyomi/data/glide/TachiGlideModule.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/data/glide/TachiGlideModule.kt
@ -1,55 +0,0 @@
-package eu.kanade.tachiyomi.data.glide
-
-import android.content.Context
-import android.graphics.drawable.Drawable
-import com.bumptech.glide.Glide
-import com.bumptech.glide.GlideBuilder
-import com.bumptech.glide.Registry
-import com.bumptech.glide.annotation.GlideModule
-import com.bumptech.glide.integration.okhttp3.OkHttpUrlLoader
-import com.bumptech.glide.load.DecodeFormat
-import com.bumptech.glide.load.engine.cache.InternalCacheDiskCacheFactory
-import com.bumptech.glide.load.model.GlideUrl
-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 uy.kohesive.injekt.Injekt
-import uy.kohesive.injekt.api.get
-import java.io.InputStream
-
-/**
- * Class used to update Glide module settings
- */
-@GlideModule
-class TachiGlideModule : AppGlideModule() {
-
-    override fun applyOptions(context: Context, builder: GlideBuilder) {
-        builder.setDiskCache(InternalCacheDiskCacheFactory(context, 50 * 1024 * 1024))
-        builder.setDefaultRequestOptions(RequestOptions().format(DecodeFormat.PREFER_RGB_565))
-        builder.setDefaultTransitionOptions(
-            Drawable::class.java,
-            DrawableTransitionOptions.withCrossFade()
-        )
-    }
-
-    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.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
@ -8,7 +8,9 @@ import androidx.work.PeriodicWorkRequestBuilder
 import androidx.work.WorkManager
 import androidx.work.Worker
 import androidx.work.WorkerParameters
+import eu.kanade.tachiyomi.data.preference.CHARGING
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
+import eu.kanade.tachiyomi.data.preference.UNMETERED_NETWORK
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 import java.util.concurrent.TimeUnit
@ -31,9 +33,9 @@ class LibraryUpdateJob(private val context: Context, workerParams: WorkerParamet
            val preferences = Injekt.get<PreferencesHelper>()
            val interval = prefInterval ?: preferences.libraryUpdateInterval().get()
            if (interval > 0) {
-                val restrictions = preferences.libraryUpdateRestriction()!!
-                val acRestriction = "ac" in restrictions
-                val wifiRestriction = if ("wifi" in restrictions) {
+                val restrictions = preferences.libraryUpdateRestriction().get()
+                val acRestriction = CHARGING in restrictions
+                val wifiRestriction = if (UNMETERED_NETWORK in restrictions) {
                    NetworkType.UNMETERED
                } else {
                    NetworkType.CONNECTED
--- a/Show More
+++ b/Show More