name: Radon Code Metrics

on:
  workflow_dispatch:  # This allows manual triggering
  push:
    paths:
      - '**.py'  # This will run the workflow only when Python files are changed
  pull_request:
    paths:
      - '**.py'  # This will run the workflow only when Python files are changed

jobs:
  radon:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
      with:
        fetch-depth: 0  # This is important to fetch all history for comparing changes

    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: '3.x'

    - name: Install radon
      run: pip install radon

    - name: Run radon
      run: |
        # Get the list of changed Python files
        if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
          CHANGED_FILES=$(git ls-files '*.py')
        else
          CHANGED_FILES=$(git diff --name-only ${{ github.event.before }} ${{ github.sha }} | grep '\.py$' || echo "")
        fi
        
        if [ -n "$CHANGED_FILES" ]; then
          # Run Cyclomatic Complexity check
          echo "Running Cyclomatic Complexity check..."
          radon cc $CHANGED_FILES -a -s -n D
          
          # Run Maintainability Index check
          echo "Running Maintainability Index check..."
          radon mi $CHANGED_FILES -s -n D
        else
          echo "No Python files to analyze."
        fi
      continue-on-error: true

    - name: Check radon output
      run: |
        # Get the list of changed Python files
        if [ "${{ github.event_name }}" == "workflow_dispatch" ]; then
          CHANGED_FILES=$(git ls-files '*.py')
        else
          CHANGED_FILES=$(git diff --name-only ${{ github.event.before }} ${{ github.sha }} | grep '\.py$' || echo "")
        fi
        
        if [ -n "$CHANGED_FILES" ]; then
          # Run checks and capture output
          CC_OUTPUT=$(radon cc $CHANGED_FILES -a -s -n D)
          MI_OUTPUT=$(radon mi $CHANGED_FILES -s -n D)
          
          # Check if there's any output (which indicates issues)
          if [ -n "$CC_OUTPUT" ] || [ -n "$MI_OUTPUT" ]; then
            echo "Radon detected code complexity or maintainability issues:"
            [ -n "$CC_OUTPUT" ] && echo "$CC_OUTPUT"
            [ -n "$MI_OUTPUT" ] && echo "$MI_OUTPUT"
            exit 1
          else
            echo "No code complexity or maintainability issues detected."
          fi
        else
          echo "No Python files to analyze."
        fi