name: Dependency security audit

on:
  pull_request:
  push:
    paths:
      - "requirements.txt"
      - "requirements-ml.txt"
      - ".github/workflows/security-audit.yml"
  schedule:
    - cron: "23 3 * * 1"
  workflow_dispatch:

permissions:
  contents: read

jobs:
  pip-audit:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"
          cache: pip
      - name: Install vulnerability scanner
        run: python -m pip install pip-audit==2.10.1
      - name: Audit runtime dependencies
        run: pip-audit --strict -r requirements.txt
      - name: Audit optional ML dependencies
        if: ${{ hashFiles('requirements-ml.txt') != '' }}
        run: pip-audit --strict -r requirements-ml.txt