name: Publish to npm

on:
  push:
    tags:
      - 'v*'

jobs:
  publish:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      id-token: write

    steps:
      - uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '22'

      - name: Upgrade npm for OIDC support
        run: npm install -g npm@latest

      - name: Install dependencies
        run: npm install

      - name: Type check
        run: npm run typecheck

      - name: Lint
        run: npm run lint

      - name: Run tests
        run: npm test

      - name: Build
        run: npm run build

      - name: Verify version matches tag
        run: |
          TAG_VERSION=${GITHUB_REF#refs/tags/v}
          PKG_VERSION=$(node -p "require('./package.json').version")
          if [ "$TAG_VERSION" != "$PKG_VERSION" ]; then
            echo "Tag version ($TAG_VERSION) doesn't match package.json ($PKG_VERSION)"
            exit 1
          fi

      - name: Publish to npm
        run: npm publish --access public --provenance