Backend_Auto_Create_PR.yml

name: Create PR from Branch

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

jobs:
  create-pr:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Code
        uses: actions/checkout@v2

      - name: Get Issue Number
        id: get_issue
        run: |
          BRANCH_NAME=${GITHUB_REF_NAME}
          echo "BRANCH_NAME=${BRANCH_NAME}" >> $GITHUB_ENV
          ISSUE_NUMBER=$(echo "${BRANCH_NAME}" | grep -oP '#\K\d+')
          echo "ISSUE_NUMBER=${ISSUE_NUMBER}" >> $GITHUB_ENV

      - name: Get Issue Details
        id: get_issue_details
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          ISSUE_DATA=$(gh issue view "${ISSUE_NUMBER}" --json title,body,assignees,labels --jq '{title: .title, body: .body, assignees: [.assignees[].login], labels: [.labels[].name]}')
          echo "ISSUE_DATA=${ISSUE_DATA}" >> $GITHUB_ENV

      - name: Check for Existing PR
        id: check_pr
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          BASE_BRANCH="be/develop"
          echo "BASE_BRANCH=${BASE_BRANCH}" >> $GITHUB_ENV
          EXISTING_PR=$(gh pr list --state open --base "${BASE_BRANCH}" --head "${BRANCH_NAME}" --json number --jq '.[0].number')
          if [ -n "$EXISTING_PR" ]; then
            echo "An existing PR #${EXISTING_PR} already exists for this issue and branch. Exiting..."
            echo "EXISTING_PR=true" >> $GITHUB_ENV
            exit 0
          else
            echo "EXISTING_PR=false" >> $GITHUB_ENV
          fi

      - name: Create Pull Request
        if: env.EXISTING_PR == 'false'
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          ASSIGNEES=$(echo "${ISSUE_DATA}" | jq -r '.assignees | join(",")')
          LABELS=$(echo "${ISSUE_DATA}" | jq -r '.labels | join(",")')
          TEAM_MEMBERS=("unifolio0" "jongmee" "dwax1324" "jinchiim")
          IFS=', ' read -r -a ASSIGNEE_ARRAY <<< "${ASSIGNEES}"
          REVIEWERS=()
          for MEMBER in "${TEAM_MEMBERS[@]}"; do
            if [[ ! " ${ASSIGNEE_ARRAY[@]} " =~ " ${MEMBER} " ]]; then
              REVIEWERS+=("${MEMBER}")
            fi
          done
          REVIEWER_LIST=$(IFS=', '; echo "${REVIEWERS[*]}")
          ISSUE_TITLE=$(echo "${ISSUE_DATA}" | jq -r '.title')
          ISSUE_BODY=$(echo "${ISSUE_DATA}" | jq -r '.body')
          TASK_ITEMS=$(echo "${ISSUE_BODY}" | awk '/✨ Task/,/✨ Time/' | sed '1d;$d')
          PR_BODY=$(cat <<EOM
          ## 🍄 PR 확인 사항
          
          PR이 다음 요구 사항을 충족하는지 확인하세요. :
          
            - [ ] API 명세서가 업데이트 혹은 작성이 되어 있나요?
          
          ## 현재 작업은 어떤 이슈를 해결한 것인지 설명해주세요.
            > Issue Number: #${ISSUE_NUMBER}
          
            ${TASK_ITEMS}
          
          ## 기존 코드에서 변경된 점이 있다면 설명해주세요. (추가 X)
          
          - [ ] 있음
          - [ ] 없음
          EOM
          )
          gh pr create --base "${BASE_BRANCH}" --head "${BRANCH_NAME}" --title "${ISSUE_TITLE}" --body "${PR_BODY}" --assignee "${ASSIGNEES}" --reviewer "${REVIEWER_LIST}" --label "${LABELS}"