name: Changeset Release
run-name: Changeset Release ${{ github.actor != 'R00-B0T' && '- Create PR' || '- Approve & Merge' }}

on:
  pull_request:
    types: [closed, opened, synchronize, labeled]

env:
  REPO_PATH: ${{ github.repository }}
  GIT_REF: ${{ github.event.pull_request.head.sha }}

jobs:
  # Job 1: Create version bump PR when changesets are merged to main
  changeset-pr-version-bump:
    if: >
      github.event_name == 'pull_request' &&
      github.event.pull_request.merged == true &&
      github.event.pull_request.base.ref == 'main' &&
      github.actor != 'R00-B0T'
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    steps:
      - name: Git Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          ref: ${{ env.GIT_REF }}

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 20
          cache: 'npm'
            
      - name: Install Dependencies
        run: npm install

      # Check if there are any new changesets to process
      - name: Check for changesets
        id: check-changesets
        run: |
          NEW_CHANGESETS=$(find .changeset -name "*.md" ! -name "README.md" | wc -l | tr -d ' ')
          echo "Changesets diff with previous version: $NEW_CHANGESETS"
          echo "new_changesets=$NEW_CHANGESETS" >> $GITHUB_OUTPUT

      # Create version bump PR using changesets/action if there are new changesets
      - name: Changeset Pull Request
        if: steps.check-changesets.outputs.new_changesets != '0'
        id: changesets
        uses: changesets/action@v1
        with:
          commit: "changeset version bump"
          title: "Changeset version bump"
          version: npm run version-packages # This performs the changeset version bump
        env:
          GITHUB_TOKEN: ${{ secrets.CROSS_REPO_ACCESS_TOKEN }}

  # Job 2: Process version bump PR created by R00-B0T
  changeset-pr-approve-merge:
    name: Auto approve and merge Bump version PRs
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write
    if: >
        github.event_name == 'pull_request' &&
        github.event.pull_request.base.ref == 'main' &&
        github.actor == 'R00-B0T' &&
        contains(github.event.pull_request.title, 'Changeset version bump')
    
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.CROSS_REPO_ACCESS_TOKEN }}
          fetch-depth: 0
          ref: ${{ env.GIT_REF }}

      # Auto-approve PR
      - name: Auto approve PR
        uses: hmarr/auto-approve-action@v4
        with:
          review-message: "I'm approving since it's a bump version PR"

      # Enable auto-merge for the PR
      - name: Enable automerge on PR
        run: gh pr merge --squash --auto ${{ github.event.pull_request.number }}
        env:
          GH_TOKEN: ${{ secrets.CROSS_REPO_ACCESS_TOKEN }}