name: Publish

# Stages the package on npm via trusted publishing (OIDC, no token).
# The maintainer then approves it with `npm stage approve <stage-id>` (2FA).
on:
  push:
    tags: ['v*']

permissions:
  contents: read
  id-token: write

jobs:
  stage:
    runs-on: ubuntu-latest
    environment: npm
    steps:
      - uses: actions/checkout@v5
      - uses: actions/setup-node@v5
        with:
          node-version: 24
          cache: npm
          registry-url: https://registry.npmjs.org
      - run: npm install --global npm@latest
      - name: Check tag matches package.json
        run: |
          version="$(node -p "require('./package.json').version")"
          if [ "v$version" != "$GITHUB_REF_NAME" ]; then
            echo "::error::Tag $GITHUB_REF_NAME does not match package.json version $version"
            exit 1
          fi
      - run: npm ci
      - run: npm test
      - run: npm stage publish