api-coverage.yml

name: API Service Coverage

on:
  push:
    branches: ["main"]
    paths:
      - "api/**"
  pull_request:
    paths:
      - "api/**"

defaults:
  run:
    working-directory: api

jobs:
  unit-tests-with-coverage:
    name: Unit tests + coverage enforcement
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version: "20"
          cache: "npm"

      - name: Install dependencies
        run: npm ci
        working-directory: .

      - name: Run tests with V8 coverage
        run: npm run test:coverage

      - name: Upload coverage report
        uses: actions/upload-artifact@v4
        if: always()
        with:
          name: api-coverage
          path: api/coverage/

      - name: Publish coverage to PR summary
        if: always()
        run: |
          echo "## API Service Coverage Report" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          if [ -f coverage/coverage-summary.json ]; then
            node -e "
              const fs = require('fs');
              const summary = JSON.parse(fs.readFileSync('coverage/coverage-summary.json', 'utf8'));
              const total = summary.total;
              const thresholds = { lines: 80, branches: 75, functions: 80, statements: 80 };
              let failed = false;
              const rows = [];
              for (const [key, threshold] of Object.entries(thresholds)) {
                const pct = total[key]?.pct ?? 0;
                const pass = pct >= threshold;
                if (!pass) failed = true;
                rows.push(\`| \${key} | \${pct.toFixed(1)}% | \${threshold}% | \${pass ? '✅' : '❌'} |\`);
              }
              const table = [
                '| Metric | Actual | Threshold | Status |',
                '|--------|--------|-----------|--------|',
                ...rows,
              ].join('\n');
              fs.appendFileSync(process.env.GITHUB_STEP_SUMMARY, table + '\n');
              if (failed) process.exit(1);
            "
          else
            echo "Coverage report not found." >> $GITHUB_STEP_SUMMARY
            exit 1
          fi