auto-pr.yml

name: Auto open pull request on puzzle branches

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

jobs:
  open-pull-request:
    runs-on: ubuntu-latest
    steps:
      - name: get issue number
        id: get_issue_number
        run: |
          if [[ ${{ github.ref_name }} =~ puzzle/([0-9]{4})-day-([1-9]|1[0-9]|2[0-5]) ]]; then
            year=${BASH_REMATCH[1]}
            day=${BASH_REMATCH[2]}

            issue_number=$(gh issue list -S '[$year] [Day $day] in:title' --json number | jq '.[].number')

            if [ -z "$issue_number" ]; then
              echo "::error::Issue not found!"
              exit 1
            else
              echo "issue_number=${issue_number}" >> $GITHUB_OUTPUT
            fi
          else
            echo "::error::Branch does not match the expected pattern"
            exit 1
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.ACTION_TOKEN }}
      - name: create pull request
        run: gh pr create -B ${{ GITHUB_DEFAULT_BRANCH }} -H ${{ github.ref_name }} --title 'Pull request to resolve #${{ steps.get_issue_number.outputs.issue_number }}'
        env:
          GITHUB_TOKEN: ${{ secrets.ACTION_TOKEN }}