ci(build): Improve pull request build

.github/workflows/pr-build.yml

@@ -1,25 +1,51 @@
 name: PR Build
 
 on:
-  pull_request:
-    paths: 
-      - ".github/workflows/pr-build.yml"
-      - "android/**"
-      - "assets/**"
-      - "lib/**"
-
+  workflow_dispatch:
+    inputs:
+      flutter-variant:
+        required: true
+        type: choice
+        description: Flutter variant
+        default: 'stable'
+        options: 
+        - stable
+        - beta
+        - dev
+        - master
+      app-variant:
+        required: true
+        type: choice
+        description: App variant
+        default: 'release'
+        options: 
+        - release
+        - debug
+        - profile
+      pr-number:
+        required: true
+        description: PR number (No hashtag)
+
+permissions:
+  contents: read
+  pull-requests: write
+
 jobs:
   build:
     name: Build
+    continue-on-error: true
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout the repository
+        env: 
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          gh repo clone ReVanced/revanced-manager
+          gh pr checkout ${{ inputs.pr-number }}
       - name: Checkout
         uses: actions/checkout@v4
         with:
-          # Make sure the release step uses its own credentials:
-          # https://github.com/cycjimmy/semantic-release-action#private-packages
           persist-credentials: false
-          fetch-depth: 0
       - name: Setup JDK
         uses: actions/setup-java@v3
         with:
@@ -28,7 +54,7 @@ jobs:
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
-          channel: 'stable'
+          channel: ${{ inputs.flutter-variant }}
           cache: true
       - name: Install Flutter dependencies
         run: flutter pub get
@@ -37,9 +63,39 @@ jobs:
       - name: Build with Flutter
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: flutter build apk --debug
+        run: |
+          flutter build apk --${{ inputs.app-variant }};
+      - name: Set env
+        run: |
+          echo "COMMIT_HASH=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
       - name: Upload build
         uses: actions/upload-artifact@v3
         with:
-          name: revanced-manager
+          name: revanced-manager-${{ env.COMMIT_HASH }}-${{ inputs.pr-number }}-${{ inputs.app-variant }}-${{ inputs.flutter-variant }}
           path: build/app/outputs/flutter-apk/app-debug.apk
+
+  notify-pull-request:
+    name: Notify Pull Request
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Set env
+        run: |
+          echo "COMMIT_HASH=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+          if [[ "${{ needs.build.outputs.build_status }}" == "success" ]]; then
+            echo "MESSAGE=✅ Build succeeded!" >> $GITHUB_OUTPUT
+          else
+            echo "MESSAGE=🚫 Build failed!" >> $GITHUB_OUTPUT
+          fi
+      - name: Comment to Pull Request #${{ inputs.pr-number }}
+        uses: thollander/actions-comment-pull-request@v2
+        with:
+          GITHUB_TOKEN: ${{ secrets.PULL_REQUESTS_WRITE }}
+          message: |
+            ${{ env.MESSAGE }} @ ${{ env.COMMIT_HASH }}
+
+            You can check the details [here](${{ github.event.workflow_run.html_url }}).
+
+            - PR: ${{ inputs.pr-number }}
+            - App variant: ${{ inputs.app-variant }}
+            - Flutter variant: ${{ inputs.flutter-variant }}