pr_build_all_platforms.yml

name: Build PR Artifacts

on:
  pull_request:
    types:
      - opened
      - synchronize
      - reopened
      - ready_for_review

permissions:
  contents: read
  pull-requests: write

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

env:
  APP_DIR: open_wearable

jobs:
  build_android:
    name: Build Android
    runs-on: ubuntu-latest
    outputs:
      artifact_id: ${{ steps.upload_android.outputs.artifact-id }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Set up Java
        uses: actions/setup-java@v5
        with:
          distribution: zulu
          java-version: "17"
          cache: gradle

      - name: Set up Flutter project
        uses: ./.github/actions/flutter-prepare
        with:
          app-dir: ${{ env.APP_DIR }}

      - name: Build Android APK
        working-directory: ${{ env.APP_DIR }}
        run: flutter build apk --release

      - name: Upload Android APK
        id: upload_android
        uses: actions/upload-artifact@v6
        with:
          name: android-apk
          path: open_wearable/build/app/outputs/flutter-apk/app-release.apk
          if-no-files-found: error

  build_linux:
    name: Build Linux
    runs-on: ubuntu-latest
    outputs:
      artifact_id: ${{ steps.upload_linux.outputs.artifact-id }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Install Linux build dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            clang \
            cmake \
            libgtk-3-dev \
            ninja-build \
            pkg-config

      - name: Set up Flutter project
        uses: ./.github/actions/flutter-prepare
        with:
          app-dir: ${{ env.APP_DIR }}

      - name: Build Linux bundle
        working-directory: ${{ env.APP_DIR }}
        run: flutter build linux --release

      - name: Upload Linux bundle
        id: upload_linux
        uses: actions/upload-artifact@v6
        with:
          name: linux-bundle
          path: open_wearable/build/linux/x64/release/bundle
          if-no-files-found: error

  build_windows:
    name: Build Windows
    runs-on: windows-latest
    outputs:
      artifact_id: ${{ steps.upload_windows.outputs.artifact-id }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Set up Flutter project
        uses: ./.github/actions/flutter-prepare
        with:
          app-dir: ${{ env.APP_DIR }}

      - name: Build Windows runner
        working-directory: ${{ env.APP_DIR }}
        run: flutter build windows --release

      - name: Upload Windows runner
        id: upload_windows
        uses: actions/upload-artifact@v6
        with:
          name: windows-runner
          path: open_wearable/build/windows/x64/runner/Release
          if-no-files-found: error

  build_web:
    name: Build Web
    runs-on: ubuntu-latest
    outputs:
      artifact_id: ${{ steps.upload_web.outputs.artifact-id }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Set up Flutter project
        uses: ./.github/actions/flutter-prepare
        with:
          app-dir: ${{ env.APP_DIR }}

      - name: Build Web bundle
        working-directory: ${{ env.APP_DIR }}
        run: flutter build web --release

      - name: Upload Web bundle
        id: upload_web
        uses: actions/upload-artifact@v6
        with:
          name: web-bundle
          path: open_wearable/build/web
          if-no-files-found: error

  comment_artifact_links:
    name: Comment Artifact Links
    runs-on: ubuntu-latest
    needs:
      - build_android
      - build_linux
      - build_windows
      - build_web
    if: always()

    steps:
      - name: Post or update PR comment with artifact links
        uses: actions/github-script@v8
        env:
          RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
          ANDROID_ARTIFACT_ID: ${{ needs.build_android.outputs.artifact_id }}
          LINUX_ARTIFACT_ID: ${{ needs.build_linux.outputs.artifact_id }}
          WINDOWS_ARTIFACT_ID: ${{ needs.build_windows.outputs.artifact_id }}
          WEB_ARTIFACT_ID: ${{ needs.build_web.outputs.artifact_id }}
        with:
          script: |
            const marker = '<!-- pr-build-artifacts -->';
            const prNumber = context.payload.pull_request.number;
            const runUrl = process.env.RUN_URL;
            const repoUrl = `${context.serverUrl}/${context.repo.owner}/${context.repo.repo}`;
            const linkFor = (id) => id
              ? `${repoUrl}/actions/runs/${context.runId}/artifacts/${id}`
              : runUrl;

            const body = `${marker}
            ### PR Build Artifacts
            - Android APK: [Download Android build](${linkFor(process.env.ANDROID_ARTIFACT_ID)})
            - Linux Bundle: [Download Linux build](${linkFor(process.env.LINUX_ARTIFACT_ID)})
            - Windows Runner: [Download Windows build](${linkFor(process.env.WINDOWS_ARTIFACT_ID)})
            - Web Bundle: [Download Web build](${linkFor(process.env.WEB_ARTIFACT_ID)})

            Full workflow run: ${runUrl}`;

            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: prNumber,
            });

            const previous = comments.find(
              (comment) =>
                comment.user.type === 'Bot' &&
                comment.body &&
                comment.body.includes(marker)
            );

            if (previous) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: previous.id,
                body,
              });
            } else {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: prNumber,
                body,
              });
            }