name: Publish to npm

on:
  push:
    branches: [main]
    paths:
      - 'packages/ai-research-skills/**'

permissions:
  id-token: write
  contents: read

jobs:
  publish:
    runs-on: ubuntu-latest
    defaults:
      run:
        working-directory: packages/ai-research-skills

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - name: Check if version changed
        id: version
        run: |
          CURRENT=$(node -p "require('./package.json').version")
          PREVIOUS=$(git show HEAD~1:packages/ai-research-skills/package.json 2>/dev/null | node -p "JSON.parse(require('fs').readFileSync('/dev/stdin','utf8')).version" 2>/dev/null || echo "")
          echo "current=$CURRENT"
          echo "previous=$PREVIOUS"
          if [ "$CURRENT" != "$PREVIOUS" ]; then
            echo "changed=true" >> $GITHUB_OUTPUT
            echo "version=$CURRENT" >> $GITHUB_OUTPUT
          else
            echo "changed=false" >> $GITHUB_OUTPUT
          fi

      - name: Check if version already published
        if: steps.version.outputs.changed == 'true'
        id: published
        run: |
          VERSION=${{ steps.version.outputs.version }}
          if npm view @orchestra-research/ai-research-skills@$VERSION version 2>/dev/null; then
            echo "already_published=true" >> $GITHUB_OUTPUT
            echo "Version $VERSION already on npm, skipping"
          else
            echo "already_published=false" >> $GITHUB_OUTPUT
          fi

      - name: Setup Node.js
        if: steps.version.outputs.changed == 'true' && steps.published.outputs.already_published == 'false'
        uses: actions/setup-node@v4
        with:
          node-version: '24'
          registry-url: 'https://registry.npmjs.org'

      - name: Install dependencies
        if: steps.version.outputs.changed == 'true' && steps.published.outputs.already_published == 'false'
        run: npm ci

      - name: Publish to npm
        if: steps.version.outputs.changed == 'true' && steps.published.outputs.already_published == 'false'
        run: |
          echo "Publishing v${{ steps.version.outputs.version }} to npm..."
          unset NODE_AUTH_TOKEN
          npm config delete //registry.npmjs.org/:_authToken || true
          npm publish --access public --provenance

      - name: Skip reason
        if: steps.version.outputs.changed != 'true'
        run: echo "Version unchanged, skipping publish"