amethyst/.github/workflows/build-benchmark-apk.yml

name: Build Benchmark APK

on:
  push:
    branches:
      - 'claude/**'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build-benchmark:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - name: Checkout code
        uses: actions/checkout@v6

      - name: Set up JDK 21
        uses: actions/setup-java@v5
        with:
          distribution: 'zulu'
          java-version: 21

      - name: Cache gradle
        uses: actions/cache@v5
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-

      - name: Build Benchmark APK
        run: ./gradlew assemblePlayBenchmark

      - name: Upload APK to prerelease
        id: upload
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const apkPath = 'amethyst/build/outputs/apk/play/benchmark/amethyst-play-universal-benchmark.apk';
            const sha = context.sha.substring(0, 7);
            const tag = `benchmark-${sha}`;

            // Delete existing release with this tag if it exists
            try {
              const { data: existing } = await github.rest.repos.getReleaseByTag({
                owner: context.repo.owner,
                repo: context.repo.repo,
                tag
              });
              await github.rest.repos.deleteRelease({
                owner: context.repo.owner,
                repo: context.repo.repo,
                release_id: existing.id
              });
              await github.rest.git.deleteRef({
                owner: context.repo.owner,
                repo: context.repo.repo,
                ref: `tags/${tag}`
              });
            } catch (e) {
              // Release doesn't exist yet, that's fine
            }

            const { data: release } = await github.rest.repos.createRelease({
              owner: context.repo.owner,
              repo: context.repo.repo,
              tag_name: tag,
              target_commitish: context.sha,
              name: `Benchmark APK (${sha})`,
              body: `Auto-generated benchmark APK for commit ${context.sha}`,
              prerelease: true
            });

            const apkData = fs.readFileSync(apkPath);
            const { data: asset } = await github.rest.repos.uploadReleaseAsset({
              owner: context.repo.owner,
              repo: context.repo.repo,
              release_id: release.id,
              name: 'amethyst-play-universal-benchmark.apk',
              data: apkData,
              headers: {
                'content-type': 'application/vnd.android.package-archive',
                'content-length': apkData.length
              }
            });

            core.setOutput('apk-url', asset.browser_download_url);

      - name: Comment on PR with APK link
        uses: actions/github-script@v7
        with:
          script: |
            const apkUrl = `${{ steps.upload.outputs.apk-url }}`;
            const body = `📦 **Benchmark APK ready!**\n\nDownload: [Play Benchmark APK](${apkUrl})`;

            const branch = context.ref.replace('refs/heads/', '');
            const { data: prs } = await github.rest.pulls.list({
              owner: context.repo.owner,
              repo: context.repo.repo,
              head: `${context.repo.owner}:${branch}`,
              state: 'open'
            });

            for (const pr of prs) {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: pr.number,
                body
              });
            }