slack-notification.yml

name: Slack Notification

on:
  pull_request:
    types: [opened, ready_for_review]
  issue_comment:
    types: [created, edited]

jobs:
  send_slack_notification:
    name: Send Slack Notification
    runs-on: ubuntu-latest
    steps:
      - name: Send Slack Notification for PR creation
        if: github.event_name == 'pull_request' && github.event.pull_request.draft == false
        id: send_pr_notification
        run: |
          response=$(curl -X POST -H "Authorization: Bearer ${{ secrets.SLACK_BOT_TOKEN }}" -H "Content-type: application/json" \
          --data '{
            "channel": "C079A5A8BL0",
            "text": "PR 알림",
            "blocks": [
              {
                "type": "section",
                "text": {
                  "type": "mrkdwn",
                  "text": "*작성자:* '${{ github.actor }}'
                  *PR 링크:* '${{ github.event.pull_request.html_url }}'"
                }
              }
            ]
          }' https://slack.com/api/chat.postMessage)
          echo "$response" > output.json
        env:
          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}

      - name: Extract mentions from comment body
        id: extract_mentions_comment
        if: github.event_name == 'issue_comment'
        run: |
          mentions=$(echo "${{ github.event.comment.body }}" | grep -o '@[[:alnum:]_-]\+' | paste -sd ' ' -)
          echo "::set-output name=mentions::$mentions"

      - name: Map GitHub mentions to Slack user IDs
        id: map_to_slack_ids
        if: github.event_name == 'issue_comment'
        run: |
          declare -A slack_ids
          slack_ids=(["@Doeunnkimm"]="U07600UQG3T" ["@semnil5202"]="U075KR29RGR" ["@Andrevile"]="U07545VMS21" ["@LeeJeongHooo"]="U075C1A16LT")
          mentions="${{ steps.extract_mentions_comment.outputs.mentions }}"
          slack_mentions=""
          for mention in $mentions; do
            if [[ -n "${slack_ids[$mention]}" ]]; then
              slack_mentions="$slack_mentions <@${slack_ids[$mention]}>"
            fi
          done
          echo "::set-output name=slack_mentions::$slack_mentions"

      - name: Send Slack Notification for comment if team members mentioned
        if: github.event_name == 'issue_comment' && steps.map_to_slack_ids.outputs.slack_mentions != ''
        run: |
          ts=$(jq -r '.ts' output.json)  
          curl -X POST -H "Authorization: Bearer ${{ secrets.SLACK_BOT_TOKEN }}" -H "Content-type: application/json" \
            --data '{
              "channel": "C079A5A8BL0",
              "thread_ts": "'"$ts"'", 
              "text": "'${{ steps.map_to_slack_ids.outputs.slack_mentions }}' 님을 언급했습니다.
              꼭 나중에 확인해주세요!
              메시지: '${{ github.event.comment.body }}'"
            }' https://slack.com/api/chat.postMessage
        env:
          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}

      - name: Debug mentions
        if: ${{ github.event_name == 'issue_comment' && steps.map_to_slack_ids.outputs.slack_mentions == '' }}
        run: echo "No team members mentioned in the comment."