chore: Use Kotlin for ReVanced API (#169)

This commit converts the entire project to a KTor project written in Kotlin.
Various APIs have been updated, removed, or changed.
A proxy is present to allow migration between the old and this API, which can serve requests to endpoints from the old API.

.editorconfig

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+[*.{kt,kts}]
+ktlint_code_style = intellij_idea
+ktlint_standard_no-wildcard-imports = disabled

.env.example

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+# Optional token for API calls to the backend
+BACKEND_API_TOKEN=
+# A URL to the old API to proxy for migration purposes
+OLD_API_URL=
+
+# Database connection details
+DB_URL=jdbc:h2:./persistence/revanced-api
+DB_USER=
+DB_PASSWORD=
+
+# Digest auth to issue JWT tokens in the format SHA256("username:ReVanced:password")
+AUTH_SHA256_DIGEST=
+
+# JWT configuration for authenticated API endpoints
+JWT_SECRET=
+JWT_ISSUER=
+JWT_VALIDITY_IN_MIN=

.gitattributes

@@ -0,0 +1,9 @@
+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: 🐞 Bug report
+description: Report a bug or an issue.
+title: 'bug: '
+labels: ['Bug report']
+body:
+  - type: markdown
+    attributes:
+      value: |
+        <p align="center">
+          <picture>
+            <source
+              width="256px"
+              media="(prefers-color-scheme: dark)"
+              srcset="https://raw.githubusercontent.com/revanced/revanced-api/main/assets/revanced-headline/revanced-headline-vertical-dark.svg"
+            >
+            <img 
+              width="256px"
+              src="https://raw.githubusercontent.com/revanced/revanced-api/main/assets/revanced-headline/revanced-headline-vertical-light.svg"
+            >
+          </picture>
+          <br>
+          <a href="https://revanced.app/">
+             <picture>
+                 <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/revanced/revanced-api/main/assets/revanced-logo/revanced-logo.svg" />
+                 <img height="24px" src="https://raw.githubusercontent.com/revanced/revanced-api/main/assets/revanced-logo/revanced-logo.svg" />
+             </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://github.com/ReVanced">
+               <picture>
+                   <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://i.ibb.co/dMMmCrW/Git-Hub-Mark.png" />
+                   <img height="24px" src="https://i.ibb.co/9wV3HGF/Git-Hub-Mark-Light.png" />
+               </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="http://revanced.app/discord">
+               <picture>
+                   <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
+                   <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
+               </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://reddit.com/r/revancedapp">
+               <picture>
+                   <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
+                   <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
+               </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://t.me/app_revanced">
+              <picture>
+                 <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
+                 <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
+              </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://x.com/revancedapp">
+              <picture>
+                 <source media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/93124920/270180600-7c1b38bf-889b-4d68-bd5e-b9d86f91421a.png">
+                 <img height="24px" src="https://user-images.githubusercontent.com/93124920/270108715-d80743fa-b330-4809-b1e6-79fbdc60d09c.png" />
+              </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://www.youtube.com/@ReVanced">
+              <picture>
+                 <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
+                 <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
+             </picture>
+           </a>
+           <br>
+           <br>
+           Continuing the legacy of Vanced
+        </p>
+
+        # ReVanced API bug report
+
+        Before creating a new bug report, please keep the following in mind:
+
+        - **Do not submit a duplicate bug report**: Search for existing bug reports [here](https://github.com/ReVanced/revanced-api/issues?q=label%3A%22Bug+report%22).
+        - **Review the contribution guidelines**: Make sure your bug report adheres to it. You can find the guidelines [here](https://github.com/ReVanced/revanced-api/blob/main/CONTRIBUTING.md).
+        - **Do not use the issue page for support**: If you need help or have questions, check out other platforms on [revanced.app](https://revanced.app).
+  - type: textarea
+    attributes:
+      label: Bug description
+      description: |
+        - Describe your bug in detail
+        - Add steps to reproduce the bug if possible (Step 1. ... Step 2. ...)
+        - Add images and videos if possible
+    validations:
+        required: true
+  - type: textarea
+    attributes:
+      label: Error logs
+      description: Exceptions can be captured by running `logcat | grep AndroidRuntime` in a shell.
+      render: shell
+  - type: textarea
+    attributes:
+      label: Solution
+      description: If applicable, add a possible solution to the bug.
+  - type: textarea
+    attributes:
+      label: Additional context
+      description: Add additional context here.
+  - type: checkboxes
+    id: acknowledgements
+    attributes:
+      label: Acknowledgements
+      description: Your bug report will be closed if you don't follow the checklist below.
+      options:
+        - label: I have checked all open and closed bug reports and this is not a duplicate.
+          required: true
+        - label: I have chosen an appropriate title.
+          required: true
+        - label: All requested information has been provided properly.
+          required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: 🗨 Discussions
+    url: https://github.com/revanced/revanced-suggestions/discussions
+    about: Have something unspecific to ReVanced APi in mind? Search for or start a new discussion!

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,105 @@
+name: ⭐ Feature request
+description: Create a detailed request for a new feature.
+title: 'feat: '
+labels: ['Feature request']
+body:
+  - type: markdown
+    attributes:
+      value: |
+        <p align="center">
+          <picture>
+            <source
+              width="256px"
+              media="(prefers-color-scheme: dark)"
+              srcset="https://raw.githubusercontent.com/revanced/revanced-api/main/assets/revanced-headline/revanced-headline-vertical-dark.svg"
+            >
+            <img 
+              width="256px"
+              src="https://raw.githubusercontent.com/revanced/revanced-api/main/assets/revanced-headline/revanced-headline-vertical-light.svg"
+            >
+          </picture>
+          <br>
+          <a href="https://revanced.app/">
+             <picture>
+                 <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/revanced/revanced-api/main/assets/revanced-logo/revanced-logo.svg" />
+                 <img height="24px" src="https://raw.githubusercontent.com/revanced/revanced-api/main/assets/revanced-logo/revanced-logo.svg" />
+             </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://github.com/ReVanced">
+               <picture>
+                   <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://i.ibb.co/dMMmCrW/Git-Hub-Mark.png" />
+                   <img height="24px" src="https://i.ibb.co/9wV3HGF/Git-Hub-Mark-Light.png" />
+               </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="http://revanced.app/discord">
+               <picture>
+                   <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
+                   <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032563-d4e084b7-244e-4358-af50-26bde6dd4996.png" />
+               </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://reddit.com/r/revancedapp">
+               <picture>
+                   <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
+                   <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032351-9d9d5619-8ef7-470a-9eec-2744ece54553.png" />
+               </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://t.me/app_revanced">
+              <picture>
+                 <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
+                 <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032213-faf25ab8-0bc3-4a94-a730-b524c96df124.png" />
+              </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://x.com/revancedapp">
+              <picture>
+                 <source media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/93124920/270180600-7c1b38bf-889b-4d68-bd5e-b9d86f91421a.png">
+                 <img height="24px" src="https://user-images.githubusercontent.com/93124920/270108715-d80743fa-b330-4809-b1e6-79fbdc60d09c.png" />
+              </picture>
+           </a>&nbsp;&nbsp;&nbsp;
+           <a href="https://www.youtube.com/@ReVanced">
+              <picture>
+                 <source height="24px" media="(prefers-color-scheme: dark)" srcset="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
+                 <img height="24px" src="https://user-images.githubusercontent.com/13122796/178032714-c51c7492-0666-44ac-99c2-f003a695ab50.png" />
+             </picture>
+           </a>
+           <br>
+           <br>
+           Continuing the legacy of Vanced
+        </p>
+
+        # ReVanced APi feature request
+
+        Before creating a new feature request, please keep the following in mind:
+
+        - **Do not submit a duplicate feature request**: Search for existing feature requests [here](https://github.com/ReVanced/revanced-api/issues?q=label%3A%22Feature+request%22).
+        - **Review the contribution guidelines**: Make sure your feature request adheres to it. You can find the guidelines [here](https://github.com/ReVanced/revanced-api/blob/main/CONTRIBUTING.md).
+        - **Do not use the issue page for support**: If you need help or have questions, check out other platforms on [revanced.app](https://revanced.app).
+  - type: textarea
+    attributes:
+      label: Feature description
+      description: |
+        - Describe your feature in detail
+        - Add images, videos, links, examples, references, etc. if possible
+  - type: textarea
+    attributes:
+      label: Motivation
+      description: | 
+        A strong motivation is necessary for a feature request to be considered.
+        
+        - Why should this feature be implemented? 
+        - What is the explicit use case?
+        - What are the benefits?
+        - What makes this feature important?
+    validations:
+      required: true
+  - type: checkboxes
+    id: acknowledgements
+    attributes:
+      label: Acknowledgements
+      description: Your feature request will be closed if you don't follow the checklist below.
+      options:
+        - label: I have checked all open and closed feature requests and this is not a duplicate
+          required: true
+        - label: I have chosen an appropriate title.
+          required: true
+        - label: All requested information has been provided properly.
+          required: true

.github/config.yml

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+firstPRMergeComment: >
+  Thank you for contributing to ReVanced. Join us on [Discord](https://revanced.app/discord) to receive a role for your contribution.