name: Tests

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]
  workflow_dispatch:

jobs:
  test:
    name: Run Tests
    runs-on: ubuntu-latest

    strategy:
      matrix:
        dotnet-version: ['9.0.x']

    services:
      postgres:
        image: postgres:16-alpine
        env:
          POSTGRES_DB: colaflow_test
          POSTGRES_USER: colaflow_test
          POSTGRES_PASSWORD: colaflow_test_password
        options: >-
          --health-cmd pg_isready
          --health-interval 10s
          --health-timeout 5s
          --health-retries 5
        ports:
          - 5432:5432

      redis:
        image: redis:7-alpine
        options: >-
          --health-cmd "redis-cli ping"
          --health-interval 10s
          --health-timeout 3s
          --health-retries 5
        ports:
          - 6379:6379

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0  # Full history for better coverage reports

      - name: Setup .NET ${{ matrix.dotnet-version }}
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: ${{ matrix.dotnet-version }}

      - name: Cache NuGet packages
        uses: actions/cache@v4
        with:
          path: ~/.nuget/packages
          key: ${{ runner.os }}-nuget-${{ hashFiles('**/*.csproj') }}
          restore-keys: |
            ${{ runner.os }}-nuget-

      - name: Restore dependencies
        run: dotnet restore
        working-directory: ./src

      - name: Build solution
        run: dotnet build --no-restore --configuration Release
        working-directory: ./src

      - name: Run unit tests
        run: |
          dotnet test \
            --no-build \
            --configuration Release \
            --filter "Category=Unit" \
            --logger "trx;LogFileName=unit-tests.trx" \
            --logger "console;verbosity=detailed" \
            /p:CollectCoverage=true \
            /p:CoverletOutputFormat=opencover \
            /p:CoverletOutput=./coverage/unit/
        working-directory: ./tests
        continue-on-error: true

      - name: Run integration tests
        run: |
          dotnet test \
            --no-build \
            --configuration Release \
            --filter "Category=Integration" \
            --logger "trx;LogFileName=integration-tests.trx" \
            --logger "console;verbosity=detailed" \
            /p:CollectCoverage=true \
            /p:CoverletOutputFormat=opencover \
            /p:CoverletOutput=./coverage/integration/
        working-directory: ./tests
        env:
          ConnectionStrings__DefaultConnection: "Host=localhost;Port=5432;Database=colaflow_test;Username=colaflow_test;Password=colaflow_test_password"
          ConnectionStrings__Redis: "localhost:6379"
        continue-on-error: true

      - name: Run all tests with coverage
        run: |
          dotnet test \
            --no-build \
            --configuration Release \
            --logger "trx;LogFileName=all-tests.trx" \
            --logger "console;verbosity=normal" \
            /p:CollectCoverage=true \
            /p:CoverletOutputFormat=opencover \
            /p:CoverletOutput=./coverage/ \
            /p:Threshold=80 \
            /p:ThresholdType=line \
            /p:ThresholdStat=total
        working-directory: ./tests

      - name: Generate coverage report
        if: always()
        run: |
          dotnet tool install -g dotnet-reportgenerator-globaltool
          reportgenerator \
            -reports:./tests/coverage/coverage.opencover.xml \
            -targetdir:./coverage-report \
            -reporttypes:Html;Badges;TextSummary

      - name: Upload coverage report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: coverage-report
          path: ./coverage-report
          retention-days: 30

      - name: Upload test results
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: test-results
          path: ./tests/**/*.trx
          retention-days: 30

      - name: Publish test results
        if: always()
        uses: dorny/test-reporter@v1
        with:
          name: Test Results
          path: ./tests/**/*.trx
          reporter: dotnet-trx
          fail-on-error: true

      - name: Comment coverage on PR
        if: github.event_name == 'pull_request'
        uses: 5monkeys/cobertura-action@master
        with:
          path: ./tests/coverage/coverage.opencover.xml
          minimum_coverage: 80
          fail_below_threshold: true

      - name: Check coverage threshold
        run: |
          if [ -f ./coverage-report/Summary.txt ]; then
            cat ./coverage-report/Summary.txt

            # Extract line coverage percentage
            COVERAGE=$(grep "Line coverage:" ./coverage-report/Summary.txt | awk '{print $3}' | sed 's/%//')
            echo "Coverage: $COVERAGE%"

            # Check if coverage meets threshold
            if (( $(echo "$COVERAGE < 80" | bc -l) )); then
              echo "❌ Coverage $COVERAGE% is below threshold 80%"
              exit 1
            else
              echo "✅ Coverage $COVERAGE% meets threshold 80%"
            fi
          fi

  docker-build:
    name: Docker Build Test
    runs-on: ubuntu-latest
    needs: test

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Test Docker Compose
        run: |
          docker-compose config
          echo "✅ Docker Compose configuration is valid"

      - name: Build Docker images (dry run)
        run: |
          docker-compose build --no-cache
        continue-on-error: true

  summary:
    name: Test Summary
    runs-on: ubuntu-latest
    needs: [test, docker-build]
    if: always()

    steps:
      - name: Generate summary
        run: |
          echo "## Test Results Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "| Job | Status |" >> $GITHUB_STEP_SUMMARY
          echo "|-----|--------|" >> $GITHUB_STEP_SUMMARY
          echo "| Tests | ${{ needs.test.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "| Docker Build | ${{ needs.docker-build.result }} |" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY

          if [[ "${{ needs.test.result }}" == "success" ]] && [[ "${{ needs.docker-build.result }}" == "success" ]]; then
            echo "✅ All checks passed!" >> $GITHUB_STEP_SUMMARY
          else
            echo "❌ Some checks failed. Please review the logs." >> $GITHUB_STEP_SUMMARY
          fi