name: Vulnerability Scan

on:
  pull_request:
  push:
    branches: [main]
  schedule:
    # Run weekly on Monday at 9:00 UTC
    - cron: '0 9 * * 1'

permissions:
  contents: read

jobs:
  pip-audit:
    name: pip-audit
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Restore global uv cache
        id: cache-restore
        uses: actions/cache/restore@v4
        with:
          path: |
            ~/.cache/uv
            ~/.local/share/uv
            .venv
          key: uv-main-py3.11-${{ hashFiles('uv.lock') }}
          restore-keys: |
            uv-main-py3.11-

      - name: Install uv
        uses: astral-sh/setup-uv@v6
        with:
          version: "0.11.3"
          python-version: "3.11"
          enable-cache: false

      - name: Install dependencies
        run: uv sync --all-groups --all-extras --no-install-project

      - name: Install pip-audit
        run: uv pip install pip-audit

      - name: Run pip-audit
        run: |
          uv run pip-audit --desc --aliases --skip-editable --format json --output pip-audit-report.json \
            --ignore-vuln CVE-2026-3219
        # Ignored CVEs:
        #   CVE-2026-3219   - pip 26.0.1 (GHSA-58qw-9mgm-455v): no fix available, archive handling issue
        continue-on-error: true

      - name: Display results
        if: always()
        run: |
          if [ -f pip-audit-report.json ]; then
            echo "## pip-audit Results" >> $GITHUB_STEP_SUMMARY
            echo '```json' >> $GITHUB_STEP_SUMMARY
            cat pip-audit-report.json | python3 -m json.tool >> $GITHUB_STEP_SUMMARY
            echo '```' >> $GITHUB_STEP_SUMMARY
            # Fail if vulnerabilities found
            python3 -c "
          import json, sys
          with open('pip-audit-report.json') as f:
              data = json.load(f)
          vulns = [d for d in data.get('dependencies', []) if d.get('vulns')]
          if vulns:
              print(f'::error::Found vulnerabilities in {len(vulns)} package(s)')
              for v in vulns:
                  for vuln in v['vulns']:
                      print(f'  - {v[\"name\"]}=={v[\"version\"]}: {vuln[\"id\"]}')
              sys.exit(1)
          print('No known vulnerabilities found')
          "
          else
            echo "::error::pip-audit failed to produce a report. Check the pip-audit step logs."
            exit 1
          fi

      - name: Upload pip-audit report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: pip-audit-report
          path: pip-audit-report.json

      - name: Save uv caches
        if: steps.cache-restore.outputs.cache-hit != 'true'
        uses: actions/cache/save@v4
        with:
          path: |
            ~/.cache/uv
            ~/.local/share/uv
            .venv
          key: uv-main-py3.11-${{ hashFiles('uv.lock') }}