ci.yml

name: CI

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

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        python-version: [3.9, '3.10', '3.11', '3.12']

    steps:
    - uses: actions/checkout@v4
    
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v4
      with:
        python-version: ${{ matrix.python-version }}
    
    - name: Install system dependencies
      run: |
        sudo apt-get update
        sudo apt-get install -y python3-dev
    
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install pytest pytest-cov pytest-xdist
        pip install pandas numpy scipy matplotlib seaborn
        pip install networkx tqdm multiprocess
        # Install optional dependencies for extended functionality
        pip install hyperopt || echo "hyperopt installation failed, continuing..."
        pip install cloudpickle dill || echo "pickle dependencies failed, continuing..."
        
        # Install package in development mode
        pip install -e .
    
    - name: Lint with flake8 (optional)
      run: |
        pip install flake8
        # Stop the build if there are Python syntax errors or undefined names
        flake8 src --count --select=E9,F63,F7,F82 --show-source --statistics
        # Exit-zero treats all errors as warnings. Increase line-length for compatibility
        flake8 src --count --exit-zero --max-complexity=10 --max-line-length=120 --statistics
      continue-on-error: true
    
    - name: Run tests with pytest
      run: |
        # Set PYTHONPATH to include src directory
        export PYTHONPATH="${PYTHONPATH}:${PWD}/src"
        
        # Run tests with coverage
        pytest tests/ -v --cov=src --cov-report=xml --cov-report=html --cov-report=term
    
    - name: Upload coverage to Codecov
      uses: codecov/codecov-action@v3
      with:
        file: ./coverage.xml
        flags: unittests
        name: codecov-umbrella
        fail_ci_if_error: false
    
    - name: Generate coverage summary
      run: |
        echo "## Coverage Report" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "Coverage report generated for commit ${{ github.sha }}" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "```" >> $GITHUB_STEP_SUMMARY
        coverage report >> $GITHUB_STEP_SUMMARY || echo "Coverage report generation failed" >> $GITHUB_STEP_SUMMARY
        echo "```" >> $GITHUB_STEP_SUMMARY
    
    - name: Archive coverage reports
      uses: actions/upload-artifact@v4
      with:
        name: coverage-reports-${{ matrix.python-version }}
        path: |
          coverage.xml
          htmlcov/
        retention-days: 30

  integration-tests:
    runs-on: ubuntu-latest
    needs: test
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Set up Python 3.10
      uses: actions/setup-python@v4
      with:
        python-version: '3.10'
    
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install pandas numpy scipy matplotlib seaborn
        pip install networkx tqdm multiprocess
        pip install pytest
        pip install -e .
    
    - name: Run integration tests
      run: |
        export PYTHONPATH="${PYTHONPATH}:${PWD}/src"
        # Run any integration tests (if they exist)
        if [ -d "tests/integration" ]; then
          pytest tests/integration/ -v
        else
          echo "No integration tests found"
        fi

  coverage-summary:
    runs-on: ubuntu-latest
    needs: test
    if: always()
    
    steps:
    - uses: actions/checkout@v4
    
    - name: Set up Python 3.10
      uses: actions/setup-python@v4
      with:
        python-version: '3.10'
    
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install pytest pytest-cov
        pip install pandas numpy scipy matplotlib seaborn
        pip install networkx tqdm multiprocess
        pip install -e .
    
    - name: Generate final coverage report
      run: |
        export PYTHONPATH="${PYTHONPATH}:${PWD}/src"
        pytest tests/ -v --cov=src --cov-report=term --cov-report=html
        
        echo "## 📊 Final Coverage Report" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### Overall Coverage Statistics" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "```" >> $GITHUB_STEP_SUMMARY
        coverage report --skip-covered >> $GITHUB_STEP_SUMMARY 2>&1 || echo "Coverage report failed" >> $GITHUB_STEP_SUMMARY
        echo "```" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "### Coverage by Module" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "```" >> $GITHUB_STEP_SUMMARY
        coverage report --include="src/*" >> $GITHUB_STEP_SUMMARY 2>&1 || echo "Module coverage report failed" >> $GITHUB_STEP_SUMMARY
        echo "```" >> $GITHUB_STEP_SUMMARY
        echo "" >> $GITHUB_STEP_SUMMARY
        echo "📈 **Detailed HTML coverage report is available in the artifacts**" >> $GITHUB_STEP_SUMMARY
    
    - name: Upload final coverage artifacts
      uses: actions/upload-artifact@v4
      with:
        name: final-coverage-report
        path: |
          htmlcov/
        retention-days: 30
    
    - name: Test examples (smoke tests)
      run: |
        export PYTHONPATH="${PYTHONPATH}:${PWD}/src"
        # Basic smoke tests to ensure examples don't crash
        python -c "
        import sys
        sys.path.insert(0, 'src')
        try:
            import stochastic_benchmark
            import bootstrap
            import plotting
            import stats
            import names
            print('All main modules import successfully')
        except ImportError as e:
            print(f'Import error: {e}')
            sys.exit(1)
        "