name: Deploy (prod)

# main 브랜치 push 시: CI 에서 jar 빌드 → 서버로 scp → 운영(api) 컨테이너 재기동
# dev 와 동일한 jar 방식. 운영 전용 jar 경로(DEPLOY_JAR_PATH_PROD)만 다르다.
#
# 저장소 Settings > Actions > Secrets:
#   DEPLOY_HOST / DEPLOY_USER / DEPLOY_SSH_KEY / COMPOSE_FILE / DEPLOY_PORT  (dev 와 공용)
#   DEPLOY_JAR_PATH_PROD  운영 jar 경로 (compose 볼륨과 일치, 예: /opt/dognation/prod/app.jar)
on:
  push:
    branches: [main]
  workflow_dispatch: {}

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup JDK 17
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: '17'

      - name: Build jar (테스트 제외)
        run: |
          chmod +x ./gradlew
          ./gradlew --no-daemon clean bootJar

      - name: Deploy jar (scp + docker restart)
        env:
          DEPLOY_HOST: ${{ secrets.DEPLOY_HOST }}
          DEPLOY_USER: ${{ secrets.DEPLOY_USER }}
          DEPLOY_PORT: ${{ secrets.DEPLOY_PORT }}
          DEPLOY_SSH_KEY: ${{ secrets.DEPLOY_SSH_KEY }}
          DEPLOY_JAR_PATH: ${{ secrets.DEPLOY_JAR_PATH_PROD }}
          COMPOSE_FILE: ${{ secrets.COMPOSE_FILE }}
        run: |
          set -euo pipefail
          PORT="${DEPLOY_PORT:-22}"
          if [ -z "${DEPLOY_JAR_PATH:-}" ] || [ -z "${COMPOSE_FILE:-}" ]; then
            echo "::error::DEPLOY_JAR_PATH_PROD / COMPOSE_FILE 시크릿이 필요합니다."; exit 1
          fi

          mkdir -p ~/.ssh && chmod 700 ~/.ssh
          printf '%s\n' "$DEPLOY_SSH_KEY" | tr -d '\r' > ~/.ssh/id_deploy
          chmod 600 ~/.ssh/id_deploy
          ssh-keyscan -p "$PORT" "$DEPLOY_HOST" >> ~/.ssh/known_hosts 2>/dev/null
          SSH="ssh -p $PORT -i $HOME/.ssh/id_deploy -o StrictHostKeyChecking=yes"

          $SSH -o ConnectTimeout=10 "$DEPLOY_USER@$DEPLOY_HOST" "echo ok" >/dev/null \
            || { echo "::error::SSH 접속 실패 — 공개키/계정/포트 확인"; exit 1; }

          JAR=$(ls build/libs/*.jar | grep -v -- '-plain.jar' | head -n1)
          echo "▶ [PROD] 전송: $(basename "$JAR")  ($(du -h "$JAR" | cut -f1))"

          $SSH "$DEPLOY_USER@$DEPLOY_HOST" "mkdir -p \"\$(dirname '$DEPLOY_JAR_PATH')\" && cat > '$DEPLOY_JAR_PATH.new'" < "$JAR"
          $SSH "$DEPLOY_USER@$DEPLOY_HOST" "\
            mv -f '$DEPLOY_JAR_PATH.new' '$DEPLOY_JAR_PATH'; \
            docker compose -f '$COMPOSE_FILE' up -d --force-recreate api; \
            docker compose -f '$COMPOSE_FILE' ps api"
          echo "✅ 운영(api) 재기동 완료"