name: Playwright Tests

on:
  push:
    branches:
    - master
  pull_request:
  workflow_dispatch:
    inputs:
      debug_enabled:
        description: 'Run the build with tmate debugging enabled (https://github.com/marketplace/actions/debugging-with-tmate)'
        required: false
        default: 'false'

permissions:
  contents: read

jobs:
  changes:
    runs-on: ubuntu-latest
    timeout-minutes: 5
    # Set job outputs to values from filter step
    outputs:
      changed: ${{ steps.filter.outputs.changed }}
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        fetch-depth: 2
        persist-credentials: false
    # For pull requests it's not necessary to checkout the code but for the main branch it is
    - uses: dorny/paths-filter@7b450fff21473bca461d4b92ce414b9d0420d706 # v4.0.2
      id: filter
      with:
        filters: |
          changed:
            - backend/**
            - frontend/**
            - .env
            - compose*.yml
            - .github/workflows/playwright.yml

  test-playwright:
    needs:
      - changes
    if: ${{ needs.changes.outputs.changed == 'true' }}
    timeout-minutes: 15
    runs-on: ubuntu-latest
    strategy:
      matrix:
        shardIndex: [1, 2, 3, 4]
        shardTotal: [4]
      fail-fast: false
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
    - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
      with:
        bun-version: 1.3.12
    - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
      with:
        python-version-file: .python-version
    - name: Setup tmate session
      uses: mxschmitt/action-tmate@35b54afac29c97fb54faba5b513f8fbd1882f113 # v3.24
      if: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.debug_enabled == 'true' }}
      with:
        limit-access-to-actor: true
    - name: Install uv
      uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
      with:
        # Before upgrading uv version, make sure astral-sh/setup-uv knows its checksum.
        # See: https://github.com/astral-sh/setup-uv/issues/851#issuecomment-4282017837
        version: "0.11.18"
    - run: uv sync
      working-directory: backend
    - run: bun ci
      working-directory: frontend
    - run: bash scripts/generate-client.sh
    - run: docker compose build
    - run: docker compose down -v --remove-orphans
    - name: Run Playwright tests
      run: docker compose run --rm playwright bunx playwright test --fail-on-flaky-tests --trace=retain-on-failure --shard=${{ matrix.shardIndex }}/${{ matrix.shardTotal }}
    - run: docker compose down -v --remove-orphans
    - name: Upload blob report to GitHub Actions Artifacts
      if: ${{ !cancelled() }}
      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
      with:
        name: blob-report-${{ matrix.shardIndex }}
        path: frontend/blob-report
        include-hidden-files: true
        retention-days: 1

  merge-playwright-reports:
    needs:
      - test-playwright
      - changes
    # Merge reports after playwright-tests, even if some shards have failed
    if: ${{ !cancelled() && needs.changes.outputs.changed == 'true' }}
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      with:
        persist-credentials: false
    - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2.2.0
      with:
        bun-version: 1.3.12
    - name: Install dependencies
      run: bun ci
    - name: Download blob reports from GitHub Actions Artifacts
      uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
      with:
        path: frontend/all-blob-reports
        pattern: blob-report-*
        merge-multiple: true
    - name: Merge into HTML Report
      run: bunx playwright merge-reports --reporter html ./all-blob-reports
      working-directory: frontend
    - name: Upload HTML report
      uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
      with:
        name: html-report--attempt-${{ github.run_attempt }}
        path: frontend/playwright-report
        retention-days: 30
        include-hidden-files: true

  # https://github.com/marketplace/actions/alls-green#why
  alls-green-playwright:  # This job does nothing and is only used for the branch protection
    if: always()
    needs:
      - test-playwright
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
        with:
          jobs: ${{ toJSON(needs) }}
          allowed-skips: test-playwright