name: Android CI

on: [push, pull_request, workflow_dispatch]  

permissions:
  pull-requests: write
  contents: read
  actions: read

concurrency:
  group: build-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Run tests and generate APK
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3

      - name: Set up JDK
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: '17'

      - name: Cache packages
        id: cache-packages
        uses: actions/cache@v3
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: gradle-packages-${{ runner.os }}-${{ hashFiles('**/*.gradle', '**/*.gradle.kts', 'gradle.properties') }}
          restore-keys: gradle-packages-${{ runner.os }}

      - name: Access test login credentials
        run: |
          echo "TEST_USER_NAME=${{ secrets.TEST_USER_NAME }}" >> local.properties
          echo "TEST_USER_PASSWORD=${{ secrets.TEST_USER_PASSWORD }}" >> local.properties

      - name: AVD cache
        if: github.event_name != 'pull_request'
        uses: actions/cache@v3
        id: avd-cache
        with:
          path: |
            ~/.android/avd/*
            ~/.android/adb*
          key: avd-tablet-api-24

      - name: Create AVD and generate snapshot for caching
        if: steps.avd-cache.outputs.cache-hit != 'true' && github.event_name != 'pull_request'
        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: 24
          force-avd-creation: false
          emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
          disable-animations: true
          script: echo "Generated AVD snapshot for caching."

      - name: Run Instrumentation tests
        if: github.event_name != 'pull_request'
        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: 24
          force-avd-creation: false
          emulator-options: -no-snapshot-save -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
          disable-animations: true
          profile: Nexus 10
          script: |
            adb shell content insert --uri content://settings/system --bind name:s:accelerometer_rotation --bind value:i:0
            adb shell content insert --uri content://settings/system --bind name:s:user_rotation --bind value:i:0
            adb emu geo fix 37.422131 -122.084801
            ./gradlew connectedBetaDebugAndroidTest --stacktrace

      - name: Run Unit tests with unified coverage
        if: github.event_name != 'pull_request'
        run: ./gradlew -Pcoverage testBetaDebugUnitTestUnifiedCoverage --stacktrace

      - name: Run Unit tests without unified coverage
        if: github.event_name == 'pull_request'
        run: ./gradlew -Pcoverage testBetaDebugUnitTestCoverage --stacktrace

      - name: Upload Test Report to Codecov
        if: github.event_name != 'pull_request'
        run: |
          curl -Os https://uploader.codecov.io/latest/linux/codecov
          chmod +x codecov
          ./codecov -f "app/build/reports/jacoco/testBetaDebugUnitTestUnifiedCoverage/testBetaDebugUnitTestUnifiedCoverage.xml" -Z

      - name: Generate betaDebug APK
        run: bash ./gradlew assembleBetaDebug --stacktrace

      - name: Upload betaDebug APK
        uses: actions/upload-artifact@v4
        with:
          name: betaDebugAPK
          path: app/build/outputs/apk/beta/debug/app-*.apk

      - name: Generate prodDebug APK
        run: bash ./gradlew assembleProdDebug --stacktrace

      - name: Upload prodDebug APK
        uses: actions/upload-artifact@v4
        with:
          name: prodDebugAPK
          path: app/build/outputs/apk/prod/debug/app-*.apk
      
      - name: Comment on PR with APK download links
        if: github.event_name == 'pull_request'
        uses: actions/github-script@v6
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            try {
              const token = process.env.GITHUB_TOKEN;
               if (!token) {
                throw new Error('GITHUB_TOKEN is not set. Please check workflow permissions.');
               }


              const { data: { artifacts } } = await github.rest.actions.listWorkflowRunArtifacts({
                owner: context.repo.owner,
                repo: context.repo.repo,
                run_id: context.runId
              });

              if (!artifacts || artifacts.length === 0) {
                console.log('No artifacts found for this workflow run.');
                return;
              }

              const betaArtifact = artifacts.find(artifact => artifact.name === "betaDebugAPK");
              const prodArtifact = artifacts.find(artifact => artifact.name === "prodDebugAPK");

              if (!betaArtifact || !prodArtifact) {
                console.log('Could not find both Beta and Prod APK artifacts.');
                console.log('Available artifacts:', artifacts.map(a => a.name).join(', '));
                return;
              }

              const betaDownloadUrl = `${context.serverUrl}/${context.repo.owner}/${context.repo.repo}/suites/${context.runId}/artifacts/${betaArtifact.id}`;
              const prodDownloadUrl = `${context.serverUrl}/${context.repo.owner}/${context.repo.repo}/suites/${context.runId}/artifacts/${prodArtifact.id}`;

              const commentBody = `
               📱 **APK for pull request is ready to see the changes** 📱  
              - [Download Beta APK](${betaDownloadUrl})  
              - [Download Prod APK](${prodDownloadUrl})
              `;

              await github.rest.issues.createComment({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body: commentBody
              });
        
              console.log('Successfully posted comment with APK download links');
            } catch (error) {
              console.error('Error in PR comment creation:', error);
              if (error.message.includes('GITHUB_TOKEN')) {
                core.setFailed('Missing or invalid GITHUB_TOKEN. Please check repository secrets configuration.');
              } else if (error.status === 403) {
                core.setFailed('Permission denied. Please check workflow permissions in repository settings.');
              } else {
                core.setFailed(`Workflow failed: ${error.message}`);
              }
            }