name: Mutation sweep

on:
  schedule:
    - cron: "47 4 * * *"
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: mutation-${{ github.ref }}
  cancel-in-progress: false

env:
  HUSKY: "0"
  # Writes only on the default branch for push, schedule, manual dispatch,
  # and workflow_call. Pull requests get an empty token and remote read-only mode.
  TURBO_TOKEN: "${{ (github.ref == format('refs/heads/{0}', github.event.repository.default_branch) && (github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || github.event_name == 'workflow_call')) && secrets.TURBO_TOKEN || '' }}"
  TURBO_TEAM: ${{ vars.TURBO_TEAM }}
  TURBO_CACHE: "${{ (github.ref == format('refs/heads/{0}', github.event.repository.default_branch) && (github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' || github.event_name == 'workflow_call')) && 'local:rw,remote:rw' || 'local:rw,remote:r' }}"

jobs:
  mutation:
    name: Mutation sweep (${{ matrix.suite }})
    runs-on: ubuntu-latest
    timeout-minutes: 60
    strategy:
      fail-fast: false
      max-parallel: 2
      matrix:
        include:
          - suite: reverse-tools
            config: stryker.config.mjs
          - suite: reverse-tools-semantics
            config: stryker.semantics.config.mjs
    steps:
      - uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
        with:
          node-version-file: .nvmrc
      - name: Cache npm package downloads
        uses: ./.github/actions/npm-cache
      - run: npm ci
      - run: npm run test:prepare
      - name: Run the complete configuration
        env:
          MUTATION_CONFIG: ${{ matrix.config }}
        run: |
          node scripts/prepare-reverse-tools-mutation.mjs
          npx --no-install stryker run "${MUTATION_CONFIG}"
      - name: Require both reports from the completed sweep
        env:
          REPORT_BASE: reports/mutation/${{ matrix.suite }}
        run: |
          test -s "${REPORT_BASE}.json"
          test -s "${REPORT_BASE}.html"
      - name: Retain available mutation diagnostics
        if: ${{ !cancelled() }}
        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
        with:
          name: mutation-${{ matrix.suite }}-${{ github.run_attempt }}
          path: |
            reports/mutation/${{ matrix.suite }}.json
            reports/mutation/${{ matrix.suite }}.html
          if-no-files-found: warn
          retention-days: 7