auto-pr.yml

name: Auto PR for Claude Branches

on:
  push:
    branches:
      - 'claude/**'

permissions:
  contents: read
  pull-requests: write

jobs:
  create-pr:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Extract branch metadata
        id: metadata
        run: |
          BRANCH_NAME="${GITHUB_REF#refs/heads/}"
          echo "branch=$BRANCH_NAME" >> "$GITHUB_OUTPUT"

          # Extract session ID from branch name (e.g., claude/start-implementation-H60OG)
          SESSION_ID="${BRANCH_NAME##*-}"
          echo "session_id=$SESSION_ID" >> "$GITHUB_OUTPUT"

      - name: Check if PR exists
        id: check-pr
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          PR_EXISTS=$(gh pr list --head "${{ steps.metadata.outputs.branch }}" --json number --jq length)
          echo "exists=$PR_EXISTS" >> "$GITHUB_OUTPUT"

      - name: Get commit messages
        if: steps.check-pr.outputs.exists == '0'
        id: commits
        run: |
          # Get all commits on this branch that aren't on main
          COMMITS=$(git log origin/main..HEAD --pretty=format:"- %s" | head -n 20)

          # Get first commit title for PR title
          FIRST_COMMIT_TITLE=$(git log origin/main..HEAD --pretty=format:"%s" | tail -n 1)
          echo "first_title=$FIRST_COMMIT_TITLE" >> "$GITHUB_OUTPUT"

          # Create PR body
          {
            echo "body<<EOF"
            echo "## Changes"
            echo ""
            echo "$COMMITS"
            echo ""
            echo "---"
            echo "*This PR was automatically created from branch \`${{ steps.metadata.outputs.branch }}\`*"
            echo "EOF"
          } >> "$GITHUB_OUTPUT"

      - name: Create Pull Request
        if: steps.check-pr.outputs.exists == '0'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh pr create \
            --title "${{ steps.commits.outputs.first_title }}" \
            --body "${{ steps.commits.outputs.body }}" \
            --base main \
            --head "${{ steps.metadata.outputs.branch }}" \
            --label "claude,automated"

      - name: Summary
        run: |
          if [ "${{ steps.check-pr.outputs.exists }}" == "0" ]; then
            {
              echo "## ✅ Pull Request Created!"
              echo ""
              echo "- **Branch:** \`${{ steps.metadata.outputs.branch }}\`"
              echo "- **Session:** ${{ steps.metadata.outputs.session_id }}"
            } >> "$GITHUB_STEP_SUMMARY"
          else
            {
              echo "## ℹ️ Pull Request Already Exists"
              echo ""
              echo "- **Branch:** \`${{ steps.metadata.outputs.branch }}\`"
            } >> "$GITHUB_STEP_SUMMARY"
          fi