name: Lint

on:
  push:
    branches: [ main, develop ]
    paths:
      - 'src/**'
      - 'scripts/python/**'
      - 'tests/python/**'
      - '.github/workflows/lint.yml'
  pull_request:
    branches: [ main, develop ]
    paths:
      - 'src/**'
      - 'scripts/python/**'
      - 'tests/python/**'
      - '.github/workflows/lint.yml'

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  lint:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4

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

    - name: Cache pip dependencies
      uses: actions/cache@v4
      with:
        path: ~/.cache/pip
        key: pip-lint-${{ runner.os }}-ruff
        restore-keys: |
          pip-lint-${{ runner.os }}-

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

    - name: Lint MCP package (strict)
      run: |
        ruff check src/ tests/python/ --output-format=github

    - name: Check formatting MCP package
      run: |
        ruff format --check src/ tests/python/

    - name: Lint legacy scripts (warnings only)
      continue-on-error: true
      run: |
        ruff check scripts/python/ --output-format=github || echo "Legacy scripts have lint warnings (non-blocking)"