dotnet-ci.yml

name: .NET CI with Code Coverage

on:
  push:
    branches: [ "main" ]
  pull_request:
    branches: [ "main" ]

jobs:
  build-and-test:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      checks: write

    steps:
    - uses: actions/checkout@v4
    
    - name: Setup .NET
      uses: actions/setup-dotnet@v4
      with:
        dotnet-version: 9.0.x
        
    - name: Restore dependencies
      run: dotnet restore
      
    - name: Build
      run: dotnet build --no-restore --configuration Release
      
    - name: Test
      run: dotnet test --no-build --configuration Release --verbosity normal --collect:"XPlat Code Coverage" --results-directory ./TestResults
    
    - name: Upload coverage reports to Codecov
      if: matrix.os == 'ubuntu-latest'
      uses: codecov/codecov-action@v5
      with:
        directory: ./TestResults
        fail_ci_if_error: false
        verbose: true
      env:
        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
      
    - name: Generate Coverage Report
      uses: danielpalme/ReportGenerator-GitHub-Action@5.4.2
      with:
        reports: 'TestResults/**/coverage.cobertura.xml'
        targetdir: 'TestResults/CoverageReport'
        reporttypes: 'Html;TextSummary;Cobertura;Badges'
        
    - name: Display Coverage Summary
      run: |
        echo "## Code Coverage Summary" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        cat TestResults/CoverageReport/Summary.txt >> $GITHUB_STEP_SUMMARY
        
    - name: Upload Coverage Report as Artifact
      uses: actions/upload-artifact@v4
      if: always()
      with:
        name: coverage-report
        path: TestResults/CoverageReport
        retention-days: 30
        
    - name: Check Coverage Threshold
      run: |
        COVERAGE=$(grep -oP 'Line coverage: \K[0-9.]+' TestResults/CoverageReport/Summary.txt)
        echo "Current coverage: $COVERAGE%"
        THRESHOLD=70.0
        if (( $(echo "$COVERAGE < $THRESHOLD" | bc -l) )); then
          echo "❌ Coverage ($COVERAGE%) is below threshold ($THRESHOLD%)"
          exit 1
        else
          echo "✅ Coverage ($COVERAGE%) meets threshold ($THRESHOLD%)"
        fi