name: Publish to npm

# Publishes the package to npm when you publish a GitHub Release (or run this
# workflow manually). No local npm needed — set one repo secret, NPM_TOKEN, and
# every release ships `npx pm-claude-skills` to the world.
#
# One-time setup:
#   1. Create a free npm account at https://www.npmjs.com/signup
#   2. Profile -> Access Tokens -> Generate New Token -> "Automation"
#   3. In this repo: Settings -> Secrets and variables -> Actions -> New repository
#      secret named NPM_TOKEN with that token.
# Then: publish a GitHub Release tagged vX.Y.Z (matching package.json version).

on:
  release:
    types: [published]
  workflow_dispatch:

permissions:
  contents: read
  id-token: write   # enables npm provenance (a verified "published from this repo" badge)

jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Node
        uses: actions/setup-node@v4
        with:
          node-version: '20'
          registry-url: 'https://registry.npmjs.org'

      - name: Verify release tag matches package.json version
        if: github.event_name == 'release'
        run: |
          TAG="${GITHUB_REF_NAME#[vV]}"   # strip a leading v or V (v17.0.0 / V17.0.0)
          PKG="$(node -p "require('./package.json').version")"
          echo "release tag: $TAG | package.json: $PKG"
          if [ "$TAG" != "$PKG" ]; then
            echo "::error::Release tag ($TAG) does not match package.json version ($PKG). Bump package.json or fix the tag."
            exit 1
          fi

      - name: Publish to npm (public, with provenance)
        run: npm publish --provenance --access public
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}