ci.yml

name: CI/CD Pipeline

on:
  push:
    branches: [ main, develop ]
  pull_request:
    branches: [ main, develop ]
  schedule:
    # Run nightly at 2 AM UTC
    - cron: '0 2 * * *'

jobs:
  test:
    name: Test Suite
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        python-version: ['3.9', '3.10', '3.11', '3.12']
      fail-fast: false

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

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v5
      with:
        python-version: ${{ matrix.python-version }}

    - name: Cache dependencies
      uses: actions/cache@v4
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-pip-${{ hashFiles('requirements.txt') }}
        restore-keys: |
          ${{ runner.os }}-pip-

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt

    - name: Run tests
      run: |
        pytest tests/ -v --tb=short

    # Coverage reporting disabled for now - can be enabled with pytest-cov
    # - name: Upload coverage to Codecov
    #   uses: codecov/codecov-action@v4
    #   if: matrix.os == 'ubuntu-latest' && matrix.python-version == '3.11'
    #   with:
    #     file: ./coverage.xml
    #     fail_ci_if_error: false

  lint:
    name: Code Quality
    runs-on: ubuntu-latest

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

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.11'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install black flake8 mypy

    - name: Check code formatting (black)
      run: |
        black --check cobol_harmonizer/ tests/

    - name: Lint with flake8
      run: |
        # Stop the build if there are Python syntax errors or undefined names
        flake8 cobol_harmonizer/ --count --select=E9,F63,F7,F82 --show-source --statistics
        # Exit-zero treats all errors as warnings
        flake8 cobol_harmonizer/ --count --exit-zero --max-complexity=15 --max-line-length=100 --statistics

    - name: Type checking with mypy
      run: |
        mypy cobol_harmonizer/ --ignore-missing-imports || true

  benchmark:
    name: Performance Benchmarks
    runs-on: ubuntu-latest
    if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/develop')

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

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.11'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt
        pip install pytest-benchmark

    - name: Run performance benchmarks
      run: |
        pytest tests/test_performance.py --benchmark-only --benchmark-json=benchmark.json

    - name: Store benchmark results
      uses: benchmark-action/github-action-benchmark@v1
      if: github.event_name == 'push'
      with:
        tool: 'pytest'
        output-file-path: benchmark.json
        github-token: ${{ secrets.GITHUB_TOKEN }}
        auto-push: true

  analyze:
    name: Static Analysis
    runs-on: ubuntu-latest

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

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.11'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt

    - name: Self-analysis (Dogfooding)
      run: |
        # Analyze our own COBOL examples
        python3 cobol_harmonizer.py analyze \
          --input examples/ \
          --output analysis_report.json \
          --verbose

    - name: Upload analysis report
      uses: actions/upload-artifact@v4
      with:
        name: self-analysis-report
        path: analysis_report.json

  security:
    name: Security Scan
    runs-on: ubuntu-latest

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

    - name: Run Trivy vulnerability scanner
      uses: aquasecurity/trivy-action@master
      with:
        scan-type: 'fs'
        scan-ref: '.'
        format: 'sarif'
        output: 'trivy-results.sarif'

    - name: Upload Trivy results to GitHub Security tab
      uses: github/codeql-action/upload-sarif@v3
      if: always()
      with:
        sarif_file: 'trivy-results.sarif'

  build-docs:
    name: Build Documentation
    runs-on: ubuntu-latest

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

    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.11'

    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install mkdocs mkdocs-material

    - name: Build documentation
      run: |
        # mkdocs build --strict

    - name: Upload documentation
      uses: actions/upload-artifact@v4
      with:
        name: documentation
        path: site/

  release:
    name: Create Release
    runs-on: ubuntu-latest
    needs: [test, lint, benchmark]
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')

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

    - name: Create Release
      uses: actions/create-release@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        tag_name: ${{ github.ref }}
        release_name: Release ${{ github.ref }}
        draft: false
        prerelease: false

  notify:
    name: Notify on Failure
    runs-on: ubuntu-latest
    needs: [test, lint]
    if: failure() && github.event_name == 'push' && github.ref == 'refs/heads/main'

    steps:
    - name: Send notification
      run: |
        echo "Tests failed on main branch! Check the logs."
        # Add Slack/Email notification here if needed