ci.yml

name: Python-Simulink CI

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

jobs:
  test:
    strategy:
      matrix:
        python-version: ["3.9", "3.10", "3.11", "3.12"]
        os: [ubuntu-latest, windows-latest]
        exclude:
          # Windows with Python 3.12 has some compatibility issues
          - os: windows-latest
            python-version: "3.12"

    runs-on: ${{ matrix.os }}

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

    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v4
      with:
        python-version: ${{ matrix.python-version }}

    - name: Cache pip dependencies
      uses: actions/cache@v3
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ hashFiles('**/requirements.txt') }}
        restore-keys: |
          ${{ runner.os }}-pip-${{ matrix.python-version }}-

    - name: Install dependencies and build libraries
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt
        # Build libraries with fallback support (MATLAB if available, manual build otherwise)
        if [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then
          echo "Building libraries with fallback support..."
          make build-libraries || make build-all-so
        fi

    - name: Run linting
      run: |
        python -m flake8 --version || pip install flake8
        python -m flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
        python -m flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics

    - name: Test all examples
      run: |
        # Install additional dependencies for testing
        pip install pandas numpy matplotlib scipy control pytest pytest-cov
        # Test all examples using our comprehensive test script
        python test_all_examples.py

    - name: Test Example2 with pytest
      run: |
        cd Example2
        python -m pytest tests/ -v --tb=short
      env:
        # Set environment variable to handle .so file loading
        LD_LIBRARY_PATH: ${{ github.workspace }}/Example2

  build-check:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Set up Python 3.11
      uses: actions/setup-python@v4
      with:
        python-version: "3.11"

    - name: Build all examples and libraries
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements.txt
        # Build all libraries with fallback support (MATLAB if available, manual build otherwise)
        echo "Building all libraries with fallback support..."
        make build-libraries || make build-all-libs || make build-examples

    - name: Check for pre-built libraries
      run: |
        echo "Checking for pre-built libraries..."
        make check-all-libs

    - name: Validate Python files
      run: |
        echo "Validating Python files..."
        make validate

    - name: Upload generated libraries as artifacts
      uses: actions/upload-artifact@v3
      with:
        name: linux-libraries
        path: |
          Example1/*.so
          Example1/*.a
          Example2/*.so
          Example2/*.a
          Example3/*.so
          Example3/*.a
        retention-days: 30

  documentation:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Set up Python 3.11
      uses: actions/setup-python@v4
      with:
        python-version: "3.11"

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

    - name: Check documentation
      run: |
        echo "Checking README files..."
        test -f README.md && echo "Main README exists"
        test -f Example1/README.md && echo "Example1 README exists"
        test -f Example2/README.md && echo "Example2 README exists"
        test -f Example3/README.md && echo "Example3 README exists"

    - name: Validate notebook files
      run: |
        echo "Checking notebook files..."
        test -f Example1/dllModel.ipynb && echo "Example1 notebook exists"
        test -f Example2/discrete_tf.ipynb && echo "Example2 notebook exists"
        test -f Example3/bouncing_ball.ipynb && echo "Example3 notebook exists"

  security:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v4

    - name: Run security scan
      uses: snyk/actions/python@master
      env:
        SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
      with:
        args: --severity-threshold=high