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

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

env:
  REPO_PATH: ${{ github.repository }}
  GIT_REF: ${{ github.head_ref }}

jobs:
  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

      - 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

      - 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.ROO_GITHUB_TOKEN }}

  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.ROO_GITHUB_TOKEN }}
          fetch-depth: 0
          ref: ${{ env.GIT_REF }}

      - name: Get version
        id: get_version
        run: |
          VERSION=$(git show HEAD:package.json | jq -r '.version')
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          PREV_VERSION=$(git show origin/main:package.json | jq -r '.version')
          echo "prev_version=$PREV_VERSION" >> $GITHUB_OUTPUT

          echo "version=$VERSION"
          echo "prev_version=$PREV_VERSION"

      - name: Release Notes Prompt
        id: ai_prompt
        run: |
          # Get today's date in YYYY-MM-DD format
          TODAY=$(date +'%Y-%m-%d %H:%M')

          echo "BASE_PROMPT<<EOF" >> $GITHUB_OUTPUT
          echo "Based on the following 'PR Information', please generate concise and informative release notes to be read by developers.

          Format the release notes with markdown, and always use this structure: a descriptive and very short title (no more than 8 words) with heading level 2, a paragraph with a summary of changes (no header), and sections for '🚀 New Features & Improvements', '🐛 Bugs Fixed' and '🔧 Other Updates', with heading level 3, skip respectively the sections if not applicable, 
          finally include the following markdown comment with the PR merged date: <!-- PR_DATE: $TODAY -->.

          Avoid being repetitive and focus on the most important changes and their impact, don't mention version bumps, nor changeset files, nor environment variables, nor syntax updates.

          PR Information:" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT

      # Github outputs: 'RELEASE_NOTES' and 'OPENAI_PROMPT'
      - name: AI Release Notes
        if: ${{ !contains(github.event.pull_request.labels.*.name, 'openai-edited') }}
        uses: RooVetGit/Roo-GHA/.github/actions/ai-release-notes@main
        id: ai_release_notes
        with:
          GHA_PAT: ${{ secrets.ROO_GITHUB_TOKEN }}
          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
          model_name: gpt-4o-mini
          repo_path: ${{ env.REPO_PATH }}
          git_ref: ${{ env.GIT_REF }}
          custom_prompt: ${{ steps.ai_prompt.outputs.BASE_PROMPT }}

      - name: Update Changeset Changelog
        if: ${{ !contains(github.event.pull_request.labels.*.name, 'openai-edited') }}
        env:
          VERSION: ${{ steps.get_version.outputs.version }}
          PREV_VERSION: ${{ steps.get_version.outputs.prev_version }}
          NEW_CONTENT: ${{ steps.ai_release_notes.outputs.RELEASE_NOTES }}
        run: python .github/scripts/overwrite_changeset_changelog.py

      - name: Push Changelog updates
        if: ${{ !contains(github.event.pull_request.labels.*.name, 'openai-edited') }}
        run: |
          git config user.name "R00-B0T"
          git config user.email github-actions@github.com
          git status

          echo "Updating changelog.md..."
          git add CHANGELOG.md
          git commit -m "Updating changeset changelog"

          echo "--------------------------------------------------------------------------------"
          echo "Pushing to remote..."
          echo "--------------------------------------------------------------------------------"
          git push

      - name: Add openai-edited label
        if: ${{ !contains(github.event.pull_request.labels.*.name, 'openai-edited') }}
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              labels: ['openai-edited']
            });

      - name: Auto approve PR
        if: contains(github.event.pull_request.labels.*.name, 'openai-edited')
        uses: hmarr/auto-approve-action@v4
        with:
          review-message: "I'm approving since it's a bump version PR"

      - name: Enable automerge on PR
        if: contains(github.event.pull_request.labels.*.name, 'openai-edited')
        run: gh pr merge --squash --auto ${{ github.event.pull_request.number }}
        env:
          GH_TOKEN: ${{ secrets.ROO_GITHUB_TOKEN }}
  
  github-release:
    runs-on: ubuntu-latest
    if: >
        github.event_name == 'pull_request' &&
        github.event.pull_request.merged == true &&
        github.event.pull_request.base.ref == 'main' &&
        github.actor == 'R00-B0T' &&
        contains(github.event.pull_request.title, 'Changeset version bump')
    permissions:
      contents: write
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0

      - name: Get version
        id: get_version
        run: |
          VERSION=$(git show HEAD:package.json | jq -r '.version')
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      # Outputs: 'release-notes'
      - name: Parse CHANGELOG.md
        id: changelog
        env:
          CHANGELOG_PATH: CHANGELOG.md
          VERSION: ${{ steps.get_version.outputs.version }}
        run: python .github/scripts/parse_changeset_changelog.py

      - name: Create or Update Release
        uses: softprops/action-gh-release@v2
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: v${{ steps.get_version.outputs.version }}
          name: Release v${{ steps.get_version.outputs.version }}
          draft: false
          prerelease: false
          append_body: false
          make_latest: true
          body: ${{ steps.changelog.outputs.release-notes }}