push_notification.yml

name: GSI Push Main Notification

on:
  push:
    branches:
      - main

permissions:
  contents: read

jobs:
  notify-push-main:
    runs-on: ubuntu-latest
    steps:
      - name: Main Branch Push
        run: |
          echo "Workflow initiated by event with name: ${EVENT_NAME}"
          echo "Pushing commit to main: ${HEAD_COMMIT_ID}"
          echo "Pushed by: ${PUSHER_NAME}"
        env:
          EVENT_NAME: ${{ github.event_name }}
          HEAD_COMMIT_ID: ${{ github.event.head_commit.id }}
          PUSHER_NAME: ${{ github.event.pusher.name }}

      - name: Push Notification to Google Chat
        continue-on-error: true
        shell: bash
        env:
          WEBHOOK_URL: ${{ secrets.WEBHOOK_URL }}
          COMMIT_MSG: ${{ github.event.head_commit.message }}
          AUTHOR: ${{ github.event.head_commit.author.username }}
          REPO: ${{ github.event.repository.full_name }}
          COMPARE_URL: ${{ github.event.compare }}
        run: |
          if [ -z "$WEBHOOK_URL" ]; then
            echo "WEBHOOK_URL secret is not set. Skipping notification."
            exit 0
          fi
        
          PAYLOAD=$(jq -n \
            --arg commit "$COMMIT_MSG" \
            --arg author "$AUTHOR" \
            --arg repo "$REPO" \
            --arg compare "$COMPARE_URL" \
            '
            def guard(val): if (val == null or val == "") then "None" else val end;
            {
              cardsV2: [
                {
                  cardId: "pushNotificationCard",
                  card: {
                    header: {
                      title: "Push to main branch",
                      subtitle: guard($commit)
                    },
                    sections: [
                      {
                        widgets: [
                          { decoratedText: { topLabel: "Repo", text: guard($repo) } },
                          { decoratedText: { topLabel: "Committed by", text: guard($author) } },
                          {
                            buttonList: {
                              buttons: [
                                {
                                  text: "Ref comparison",
                                  onClick: {
                                    openLink: {
                                      url: $compare
                                    }
                                  }
                                }
                              ]
                            }
                          }
                        ]
                      }
                    ]
                  }
                }
              ]
            }')

          RESPONSE=$(curl --fail-with-body --location --request POST "$WEBHOOK_URL" \
            --header 'Content-Type: application/json; charset=UTF-8' \
            --data-raw "$PAYLOAD" 2>&1) || {
              echo "Failed to send Google Chat notification:"
              echo "$RESPONSE"
              exit 1
          }