name: Run tests and upload coverage

on:
  push:
  pull_request:

jobs:
  unit-tests:
    name: Run tests and collect coverage
    runs-on: ubuntu-latest
    env:
      COVERAGE_THRESHOLD: ${{ vars.COVERAGE_THRESHOLD || '80' }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Set up Node
        uses: actions/setup-node@v4
        with:
          node-version: 24

      - name: Install dependencies
        run: npm ci

      - name: Run unit tests with coverage
        run: npm run test -- --coverage --coverageReporters=json-summary --coverageReporters=lcov --coverageReporters=text

      - name: Verify coverage threshold
        run: |
          THRESHOLD="${COVERAGE_THRESHOLD}"
          SUMMARY="coverage/coverage-summary.json"

          if [ ! -f "$SUMMARY" ]; then
            echo "Coverage summary not found at $SUMMARY"
            exit 1
          fi

          echo "Minimum coverage required: ${THRESHOLD}% (statements, branches, functions, lines)"

          FAILED=0
          for metric in statements branches functions lines; do
            VALUE=$(node -e "const s=require('./${SUMMARY}'); console.log(s.total['${metric}'].pct)")
            echo "${metric}: ${VALUE}%"
            if node -e "process.exit(Number('${VALUE}') < Number('${THRESHOLD}') ? 1 : 0)"; then
              :
            else
              echo "FAIL: ${metric} (${VALUE}%) is below ${THRESHOLD}%"
              FAILED=1
            fi
          done

          if [ "$FAILED" -eq 1 ]; then
            exit 1
          fi

          echo "All coverage metrics meet the ${THRESHOLD}% threshold"

      - name: Upload coverage reports to Codecov
        uses: codecov/codecov-action@v5
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          slug: weni-ai/webchat-service
          fail_ci_if_error: true