name: Create a release draft

on:
  pull_request:
    branches:
      - next
    types: [closed]

jobs:
  # If pull request was merged then we should check for a package version update
  check-version-changing:
    if: github.event.pull_request.merged == true
    runs-on: ubuntu-latest
    steps:
      # Checkout to target branch
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      # Get package new version name
      - name: Get package info
        id: packageNew
        uses: codex-team/action-nodejs-package-info@v1

      # Checkout to the base commit before merge
      - name: Checkout to the base commit before merge
        run: git checkout ${{ github.event.pull_request.base.sha }}

      # Get package old version name
      - name: Get package info
        id: packageOld
        uses: codex-team/action-nodejs-package-info@v1

      # Stop workflow if version was not changed
      - name: Stop workflow if version was not changed
        uses: actions/github-script@v3
        if: steps.packageOld.outputs.version == steps.packageNew.outputs.version
        with:
          script: |
            core.setFailed('No version changes. ${{ steps.packageOld.outputs.version }}')

  # Create a new draft release
  release-draft:
    needs: check-version-changing
    runs-on: ubuntu-latest
    steps:
      # Checkout to target branch
      - uses: actions/checkout@v2
        with:
          # Pull submodules
          submodules: 'recursive'

      # Setup node environment
      - uses: actions/setup-node@v1
        with:
          node-version: 14.17.0
          registry-url: https://registry.npmjs.org/

      # Prepare, build and publish project
      - name: Install dependencies
        run: yarn

      # Build Editor.js
      - name: Build output files
        run: yarn build

      # Get package version name
      - name: Get package info
        id: package
        uses: codex-team/action-nodejs-package-info@v1

      - name: Create Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: v${{ steps.package.outputs.version }}
          release_name: v${{ steps.package.outputs.version }}

          # Fill release description from pull request body name
          body: "${{ github.event.pull_request.title }} #${{ github.event.pull_request.number }}"

          # Save as a draft release
          draft: true

          # If version name contains "-rc" suffix than mark a "pre-release" checkbox
          prerelease: ${{ contains(steps.package.outputs.version, '-rc') }}

      # Build and upload target Editor.js build to release as artifact
      - name: Upload Release Asset
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          upload_url: ${{ steps.create_release.outputs.upload_url }}
          asset_path: dist/editor.js
          asset_name: editor.js
          asset_content_type: application/javascript

      # Send a notification message
      - name: Send a message
        uses: codex-team/action-codexbot-notify@v1
        with:
          webhook: ${{ secrets.CODEX_BOT_WEBHOOK_FRONTEND }}
          message: '🦥 [Draft release v${{ steps.package.outputs.version }}](${{ steps.create_release.outputs.html_url }}) for package [${{ steps.package.outputs.name }}](${{ steps.package.outputs.npmjs-link }}) has been created. Add changelog and publish it!'
          parse_mode: 'markdown'
          disable_web_page_preview: true