name: Slack 배포 시작 알림
description: 배포 시작을 Slack으로 전송하는 스크립트
inputs:
  webhook-url:
    required: true
runs:
  using: composite
  steps:
    - shell: bash
      env:
        WEBHOOK_URL: ${{ inputs.webhook-url }}
        REPO: ${{ gitea.repository }}
        BRANCH: ${{ gitea.ref_name }}
        ACTOR: ${{ gitea.actor }}
        RUN_ID: ${{ gitea.run_id }}
        SHA: ${{ gitea.sha }}
      run: |
        set -eu
        SHORT_SHA="${SHA:0:7}"
        STATUS_URL="https://status.gitea.sample.com/${REPO}/actions/runs/${RUN_ID}"
        COMMIT_MSG="$(git log -1 --pretty=format:%s 2>/dev/null || echo '(no message)')"
        HEADER_TEXT="🚀 배포 시작 — ${REPO}"

        PAYLOAD=$(jq -n \
          --arg header "$HEADER_TEXT" \
          --arg branch "$BRANCH" \
          --arg sha    "$SHORT_SHA" \
          --arg actor  "$ACTOR" \
          --arg msg    "$COMMIT_MSG" \
          --arg sturl  "$STATUS_URL" \
          '{
            text: $header,
            blocks: [
              {type:"header", text:{type:"plain_text", text:$header, emoji:true}},
              {type:"section", fields:[
                {type:"mrkdwn", text:("*브랜치*\n`" + $branch + "`")},
                {type:"mrkdwn", text:("*커밋*\n`" + $sha + "` " + $msg)},
                {type:"mrkdwn", text:("*실행자*\n" + $actor)}
              ]},
              {type:"actions", elements:[
                {type:"button",
                 text:{type:"plain_text", text:"📊 배포 상태 보기", emoji:true},
                 url:$sturl,
                 style:"primary"}
              ]}
            ]
          }')

        echo "$PAYLOAD" | curl -sS --fail-with-body \
          -X POST \
          -H 'Content-Type: application/json; charset=utf-8' \
          --data @- \
          "$WEBHOOK_URL"