name: PR Build

on:
  pull_request:
    types: [ labeled, synchronize, opened, reopened ]

jobs:
  build:
    # Only run for PRs that contain the trigger label. The action will fail for forks due to
    # missing secrets, but there's no need to handle this as it won't run automatically.
    if: contains(github.event.pull_request.labels.*.name, 'Trigger-PR-Build')

    name: Release
    runs-on: macos-15
    
    concurrency:
      # Only allow a single run of this workflow on each branch, automatically cancelling older runs.
      group: alpha-${{ github.head_ref }}
      cancel-in-progress: true

    steps:
      - uses: actions/checkout@v4

      - uses: actions/cache@v4
        with:
          path: vendor/bundle
          key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile.lock') }}
          restore-keys: |
            ${{ runner.os }}-gems-

      - name: Setup environment
        env:
          CI_WORKFLOW: PR_BUILD
        run:
          source ci_scripts/ci_common.sh && setup_github_actions_environment

      - name: Import signing certificate
        uses: apple-actions/import-codesign-certs@v3
        with:
          p12-file-base64: ${{ secrets.ALPHA_CERTIFICATES_P12 }}
          p12-password: ${{ secrets.ALPHA_CERTIFICATES_P12_PASSWORD }}

      - name: Build alpha
        run: bundle exec fastlane build_alpha
        env:
          APPSTORECONNECT_KEY_ID: ${{ secrets.APPSTORECONNECT_KEY_ID }}
          APPSTORECONNECT_KEY_ISSUER_ID: ${{ secrets.APPSTORECONNECT_KEY_ISSUER_ID }}
          APPSTORECONNECT_KEY_CONTENT: ${{ secrets.APPSTORECONNECT_KEY_CONTENT }}
          DIAWI_API_TOKEN: ${{ secrets.DIAWI_API_TOKEN }}
          GITHUB_PR_NUMBER: ${{ github.event.number }}
          BROWSERSTACK_USERNAME: ${{ secrets.BROWSERSTACK_USERNAME }}
          BROWSERSTACK_ACCESS_KEY: ${{ secrets.BROWSERSTACK_ACCESS_KEY }}

      - name: Add release notes and Diawi info
        uses: NejcZdovc/comment-pr@v2
        with:
          message: |
            :iphone: Scan the QR code below to install the build for this PR. 
            :lock: This build is for internal testing purpose. Only devices listed in the ad-hoc provisioning profile can install Element Alpha.  

            ![QR code](${{ env.DIAWI_QR_CODE_LINK }})  

            If you can't scan the QR code you can install the build via this link: ${{ env.DIAWI_FILE_LINK }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
