ci.yml

name: 🔍 CI - Quality & Coverage

on:
  pull_request:
    branches: [ main, develop ]
    paths:
      - 'src/**'
      - '.github/workflows/ci.yml'
      - '.editorconfig'
      - 'global.json'
  push:
    branches: [ main, develop ]
    paths:
      - 'src/**'
      - '.github/workflows/ci.yml'
      - '.editorconfig'
      - 'global.json'

env:
  DOTNET_VERSION: '8.0.x'
  WORKING_DIRECTORY: './src'
  CONFIGURATION: 'Release'
  COVERAGE_THRESHOLD: '80'

jobs:
  ci:
    name: 🚀 CI - Build, Test, Quality & Coverage
    runs-on: ubuntu-latest
    
    steps:
    - name: 🛒 Checkout repository
      uses: actions/checkout@v4
      with:
        fetch-depth: 0
        
    - name: 🔧 Setup .NET 8
      uses: actions/setup-dotnet@v4
      with:
        dotnet-version: ${{ env.DOTNET_VERSION }}
        
    - name: 📦 Cache NuGet packages
      uses: actions/cache@v4
      with:
        path: ~/.nuget/packages
        key: ${{ runner.os }}-nuget-${{ hashFiles('**/src/*.csproj') }}
        restore-keys: |
          ${{ runner.os }}-nuget-
        
    - name: 🔄 Restore dependencies
      working-directory: ${{ env.WORKING_DIRECTORY }}
      run: dotnet restore --verbosity minimal
      
    - name: 🎨 Check code formatting
      working-directory: ${{ env.WORKING_DIRECTORY }}
      run: |
        echo "🎨 Checking code formatting..."
        dotnet format --verify-no-changes --verbosity minimal
      
    - name: 🏗️ Build solution
      working-directory: ${{ env.WORKING_DIRECTORY }}
      run: |
        echo "🏗️ Building solution..."
        dotnet build --configuration ${{ env.CONFIGURATION }} --no-restore --verbosity minimal
      
    - name: 🔍 Static code analysis
      working-directory: ${{ env.WORKING_DIRECTORY }}
      run: |
        echo "🔍 Running static analysis..."
        dotnet build --configuration Debug --no-restore --verbosity minimal
        
    - name: 🔒 Security audit
      working-directory: ${{ env.WORKING_DIRECTORY }}
      run: |
        echo "🔒 Running security audit..."
        dotnet list package --vulnerable --include-transitive || echo "✅ No vulnerabilities found"
        dotnet list package --deprecated || echo "✅ No deprecated packages found"
        
    - name: 🧪 Run tests with coverage
      working-directory: ${{ env.WORKING_DIRECTORY }}
      run: |
        echo "🧪 Running tests with coverage collection..."
        dotnet test \
          --configuration ${{ env.CONFIGURATION }} \
          --no-build \
          --verbosity minimal \
          --collect:"XPlat Code Coverage" \
          --results-directory:"./TestResults" \
          --logger:"trx;LogFileName=test-results.trx" \
          -- DataCollectionRunSettings.DataCollectors.DataCollector.Configuration.ExcludeByFile="**/Program.cs"
      
    - name: 🛠️ Install ReportGenerator
      run: dotnet tool install -g dotnet-reportgenerator-globaltool
      
    - name: 📊 Generate coverage report
      working-directory: ${{ env.WORKING_DIRECTORY }}
      run: |
        echo "📊 Generating coverage report..."
        
        # Find coverage files
        echo "🔍 Coverage files found:"
        COVERAGE_FILES=$(find TestResults -name "coverage.cobertura.xml" -type f 2>/dev/null || true)
        
        if [ -z "$COVERAGE_FILES" ]; then
          echo "⚠️ No coverage files found. Creating placeholder report..."
          mkdir -p CoverageReport
          echo "# ⚠️ Coverage Report Not Available" > CoverageReport/SummaryGithub.md
          echo "" >> CoverageReport/SummaryGithub.md
          echo "No coverage data was collected during test execution." >> CoverageReport/SummaryGithub.md
          exit 0
        fi
        
        # List all coverage files with details
        echo "📋 Coverage files to be merged:"
        find TestResults -name "coverage.cobertura.xml" -type f -exec echo "  - {}" \;
        
        # Count projects
        FILE_COUNT=$(find TestResults -name "coverage.cobertura.xml" -type f | wc -l)
        echo "📊 Total test projects with coverage: $FILE_COUNT"
        
        # Generate report
        reportgenerator \
          -reports:"TestResults/**/coverage.cobertura.xml" \
          -targetdir:"CoverageReport" \
          -reporttypes:"Html;MarkdownSummaryGithub;JsonSummary;Badges" \
          -title:"DesignPatternSamples - Code Coverage" \
          -tag:"monorepo;dotnet8;ci"
          
    - name: 📈 Check coverage threshold
      working-directory: ${{ env.WORKING_DIRECTORY }}
      run: |
        if [ -f "CoverageReport/Summary.json" ]; then
          COVERAGE=$(jq -r '.summary.linecoverage' CoverageReport/Summary.json)
          echo "📊 Current coverage: ${COVERAGE}%"
          
          # Use bc for floating point comparison
          if (( $(echo "$COVERAGE < ${{ env.COVERAGE_THRESHOLD }}" | bc -l) )); then
            echo "❌ Coverage $COVERAGE% is below threshold ${{ env.COVERAGE_THRESHOLD }}%"
            exit 1
          else
            echo "✅ Coverage $COVERAGE% meets threshold ${{ env.COVERAGE_THRESHOLD }}%"
          fi
        else
          echo "⚠️ Summary.json not found, coverage check skipped"
        fi
        
    - name: 💬 Comment coverage on PR
      if: github.event_name == 'pull_request' && !cancelled() && hashFiles('./src/CoverageReport/SummaryGithub.md') != ''
      uses: marocchino/sticky-pull-request-comment@v2
      with:
        recreate: true
        path: ${{ env.WORKING_DIRECTORY }}/CoverageReport/SummaryGithub.md
        
    - name: 📤 Upload coverage report
      if: always()
      uses: actions/upload-artifact@v4
      with:
        name: coverage-report
        path: ${{ env.WORKING_DIRECTORY }}/CoverageReport/
        
    - name: 📤 Upload test results
      if: always()
      uses: actions/upload-artifact@v4
      with:
        name: test-results
        path: ${{ env.WORKING_DIRECTORY }}/TestResults/
        
    - name: 📋 CI Summary
      if: always()
      run: |
        echo "## 🎯 CI Results Summary" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        
        if [ "${{ job.status }}" == "success" ]; then
          echo "✅ **All checks passed!**" >> $GITHUB_STEP_SUMMARY
          echo "- 🎨 Code formatting: ✅" >> $GITHUB_STEP_SUMMARY
          echo "- 🏗️ Build: ✅" >> $GITHUB_STEP_SUMMARY
          echo "- 🔍 Static analysis: ✅" >> $GITHUB_STEP_SUMMARY
          echo "- 🔒 Security audit: ✅" >> $GITHUB_STEP_SUMMARY
          echo "- 🧪 Tests: ✅" >> $GITHUB_STEP_SUMMARY
          echo "- 📊 Coverage: ✅" >> $GITHUB_STEP_SUMMARY
        else
          echo "❌ **Some checks failed - please review the logs above**" >> $GITHUB_STEP_SUMMARY
        fi
        
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "📊 Coverage reports and test results are available in the artifacts." >> $GITHUB_STEP_SUMMARY