name: Publish to npm

on:
  workflow_dispatch:
    inputs:
      version_type:
        description: 'Version bump type'
        required: true
        type: choice
        options:
          - patch
          - minor
          - major

jobs:
  publish:
    name: Publish to npm and create release
    runs-on: ubuntu-latest
    permissions:
      contents: write
      id-token: write
    steps:
      - name: Checkout code
        uses: actions/checkout@v5
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Setup Node.js
        uses: actions/setup-node@v5
        with:
          node-version: 22
          registry-url: 'https://registry.npmjs.org'

      - name: Install dependencies
        run: npm ci

      - name: Run tests
        run: npm test

      - name: Configure git
        run: |
          git config --global user.name "Rahul Radhakrishnan"
          git config --global user.email "rahulrkr@hotmail.com"

      - name: Bump version
        id: version
        run: |
          NEW_VERSION=$(npm version ${{ inputs.version_type }} --no-git-tag-version)
          echo "new_version=$NEW_VERSION" >> $GITHUB_OUTPUT
          echo "version_number=${NEW_VERSION#v}" >> $GITHUB_OUTPUT

      - name: Build project
        run: npm run build

      - run: npm install -g npm@latest

      - name: Publish to npm
        run: npm publish --provenance --access public
      
      - name: Commit version bump
        run: |
          git add package.json package-lock.json
          git commit -m "chore: bump version to ${{ steps.version.outputs.new_version }}"

      - name: Create git tag
        run: |
          git tag ${{ steps.version.outputs.new_version }}

      - name: Push changes and tags
        run: |
          git push origin HEAD:${{ github.ref_name }}
          git push origin ${{ steps.version.outputs.new_version }}

      - name: Generate changelog
        id: changelog
        run: |
          PREVIOUS_TAG=$(git describe --tags --abbrev=0 ${{ steps.version.outputs.new_version }}^ 2>/dev/null || echo "")
          if [ -z "$PREVIOUS_TAG" ]; then
            CHANGELOG=$(git log --pretty=format:"- %s (%h)" ${{ steps.version.outputs.new_version }})
            echo "previous_tag=" >> $GITHUB_OUTPUT
          else
            CHANGELOG=$(git log --pretty=format:"- %s (%h)" ${PREVIOUS_TAG}..${{ steps.version.outputs.new_version }})
            echo "previous_tag=$PREVIOUS_TAG" >> $GITHUB_OUTPUT
          fi
          echo "changelog<<EOF" >> $GITHUB_OUTPUT
          echo "$CHANGELOG" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.version.outputs.new_version }}
          name: Release ${{ steps.version.outputs.new_version }}
          body: |
            ## Changes in ${{ steps.version.outputs.new_version }}

            ${{ steps.changelog.outputs.changelog }}

            ---
            ${{ steps.changelog.outputs.previous_tag && format('**Full Changelog**: https://github.com/{0}/compare/{1}...{2}', github.repository, steps.changelog.outputs.previous_tag, steps.version.outputs.new_version) || format('**Initial Release**: {0}', steps.version.outputs.new_version) }}

            ### Installation

            ```bash
            npm install undici-workflow-engine@${{ steps.version.outputs.version_number }}
            ```
          draft: false
          prerelease: false
          generate_release_notes: false