name: Alert on master breakage

on:
  workflow_run:
    workflows:
      - 'Selfhosted Studio E2E Tests'
      - 'Studio Unit Tests & Build Check'
    branches: [master]
    types:
      - completed

permissions:
  contents: read
  actions: read

jobs:
  notify:
    if: ${{ github.event.workflow_run.conclusion == 'failure' }}
    runs-on: ubuntu-latest
    steps:
      - name: Send Slack alert
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.SLACK_DASHBOARD_WEBHOOK_URL }}
          WORKFLOW_NAME: ${{ github.event.workflow_run.name }}
          WORKFLOW_URL: ${{ github.event.workflow_run.html_url }}
          COMMIT_SHA: ${{ github.event.workflow_run.head_sha }}
          COMMIT_MESSAGE: ${{ github.event.workflow_run.head_commit.message }}
          COMMIT_AUTHOR: ${{ github.event.workflow_run.head_commit.author.name }}
          REPO_URL: https://github.com/${{ github.repository }}
        run: |
          SHORT_SHA="${COMMIT_SHA:0:7}"
          FIRST_LINE=$(echo "$COMMIT_MESSAGE" | head -1)

          PAYLOAD=$(jq -n \
            --arg workflow_name "$WORKFLOW_NAME" \
            --arg workflow_url "$WORKFLOW_URL" \
            --arg commit_sha "$COMMIT_SHA" \
            --arg short_sha "$SHORT_SHA" \
            --arg commit_msg "$FIRST_LINE" \
            --arg author "$COMMIT_AUTHOR" \
            --arg repo_url "$REPO_URL" \
            '{
              text: ":rotating_light: \($workflow_name) failed on master",
              blocks: [
                {
                  type: "header",
                  text: {
                    type: "plain_text",
                    text: ":rotating_light: master is broken"
                  }
                },
                {
                  type: "section",
                  text: {
                    type: "mrkdwn",
                    text: "*Workflow:* <\($workflow_url)|\($workflow_name)>\n*Commit:* <\($repo_url)/commit/\($commit_sha)|\($short_sha)> \($commit_msg)\n*Author:* \($author)"
                  }
                }
              ]
            }')

          curl -f -X POST "$SLACK_WEBHOOK_URL" \
            -H 'Content-Type: application/json' \
            -d "$PAYLOAD"