name: MacawUI migration
on: [pull_request]

jobs:
  current_state:
    runs-on: ubuntu-latest
    name: "Calculate current state"
    outputs: 
      main_statistics: ${{ steps.store_import_stats.outputs.MAIN_STATISTICS }}
    steps:
      - uses: actions/checkout@v3
        with:
          ref: "main"
      - uses: actions/setup-node@v3
        with:
          node-version-file: '.nvmrc'
      - name: Install deps
        run: |
          npm ci
      - name: Store import stats
        id: store_import_stats
        run: |
          stats=$(npx depcruise --config .dependency-cruiser.js src --output-type json | jq ".summary.info")
          echo "Statistics on main branch: ${stats}"
          echo "MAIN_STATISTICS=${stats}" >> $GITHUB_OUTPUT

  check_migation_status:
    runs-on: ubuntu-latest
    name: "Migration check"
    needs: current_state
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version-file: '.nvmrc'
      - name: Install deps
        run: |
          npm ci
      - name: "Calculate stats"
        env:
          latest: ${{ needs.current_state.outputs.main_statistics }}
        run: |
          current=$(npx depcruise --config .dependency-cruiser.js src --output-type json | jq ".summary.info")
          difference=$(( $current - $latest ))
          echo "Imports in main: ${latest}"
          echo "Incomming imports: ${current}"
          echo "Difference: ${difference}"
          echo "IMPORT_DIFFERENCE=${difference}" >> $GITHUB_ENV
      - name: "MacawUI regression reported"
        if: ${{ env.IMPORT_DIFFERENCE > 0 }}
        run: |
          echo "Regression detected: +${{ env.IMPORT_DIFFERENCE }} imports"
          exit 1
      - name: "MacawUI migration progress"
        if: ${{ env.IMPORT_DIFFERENCE <= 0 }}
        run: |
          echo "Progress by: ${{ env.IMPORT_DIFFERENCE }} imports"
          exit 0