name: CI

on:
  pull_request:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  validate:
    runs-on: ubuntu-latest

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

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Validate repository metadata
        run: |
          python - <<'PY'
          import json
          import pathlib
          import sys

          root = pathlib.Path('.')
          errors = []

          package_path = root / 'package.json'
          try:
              package = json.loads(package_path.read_text(encoding='utf-8'))
          except Exception as exc:
              errors.append(f"package.json is not valid JSON: {exc}")
          else:
              for key in ('name', 'version', 'main', 'package_version'):
                  if key not in package or package[key] in (None, ''):
                      errors.append(f"package.json is missing required key: {key}")

          required_docs = [
              'README.md',
              'README_CN.md',
              'LICENSE',
              'CHANGELOG.md',
              'CONTRIBUTING.md',
          ]
          for relative in required_docs:
              if not (root / relative).exists():
                  errors.append(f"Missing required repository file: {relative}")

          forbidden_paths = []
          for path in root.rglob('*'):
              if '.git' in path.parts:
                  continue
              if path.name == '.DS_Store' or '.idea' in path.parts or 'library' in path.parts or 'Library' in path.parts:
                  forbidden_paths.append(str(path))

          if forbidden_paths:
              errors.append('Repository contains local junk files:\n- ' + '\n- '.join(sorted(forbidden_paths)))

          if errors:
              print('Validation failed:\n')
              for error in errors:
                  print(f'- {error}')
              sys.exit(1)

          print('Repository validation passed.')
          PY

      - name: Run syntax checks
        run: npm run check

      - name: Run tests
        run: npm test

      - name: Check generated docs
        run: npm run docs:check

      - name: Run release metadata checks
        run: npm run release:check

      - name: Run npm package dry-run
        run: npm run pack:dry-run