name: Deploy to OCIWP

on:
  push:
    branches:
      - main
      - master
  workflow_dispatch:

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:

      - name: Checkout Code
        uses: actions/checkout@v4

      - name: Sync Code to Host Volume
        run: |
          echo "Copying latest code to /app (Host Volume)..."
          cp -a . /app/

      - name: Deploy Task on Host
        run: |
          echo "Starting Blue-Green CI/CD Deploy pipeline..."
          
          # 1. gradle 공식 이미지로 바로 컴파일 빌드!
          docker run --rm \
            -v /home/ubuntu/app/ax_hub_mcp_tool:/app \
            -v /var/run/docker.sock:/var/run/docker.sock \
            -v /home/ubuntu/.gradle:/home/gradle/.gradle \
            -w /app \
            gradle:8-jdk21 \
            ./gradlew bootJar -x test
          
          # 2. 빌드 결과 plain jar 아카이브 정리
          find /app -name "*-plain.jar" -delete
          
          cd /app
          
          # 3. 블루/그린 타겟 식별
          IS_BLUE_RUNNING=$(docker ps --filter "name=ax_hub_mcp_tool-gateway-blue-1" --filter "status=running" -q)
          
          if [ ! -z "$IS_BLUE_RUNNING" ]; then
            echo "Current active color is BLUE. Deploying to GREEN..."
            TARGET="green"
            OLD_TARGET="blue"
          else
            echo "Current active color is GREEN (or none). Deploying to BLUE..."
            TARGET="blue"
            OLD_TARGET="green"
          fi
          
          # 3.5. 공통 인프라 (DB, Redis 등) 먼저 띄우기 (Nginx 제외)
          ACTIVE_PROFILE=dev docker compose up -d redis mci-mock dozzle
          
          # 4. 신규 버전(TARGET) 컨테이너 기동
          echo "Building and starting $TARGET containers..."
          ACTIVE_PROFILE=dev docker compose up -d --build \
            gateway-$TARGET \
            tool-sms-$TARGET \
            tool-email-$TARGET \
            tool-other-$TARGET \
            tool-payment-$TARGET
            
          # 4.5. 레거시 컨테이너 청소 (포트 충돌 방지, Nginx 제외)
          echo "Finding and killing legacy containers holding our ports..."
          for port in 8281 8282 8283 8284 8285; do
            cid=$(docker ps -q --filter "publish=$port" --filter "name!=nginx")
            if [ ! -z "$cid" ]; then
              echo "Force killing legacy container $cid using port $port"
              docker rm -f $cid
            fi
          done
          
          # 4.6. Nginx 초기 설정 및 기동
          mkdir -p ./nginx/conf.d
          if [ ! -f "./nginx/conf.d/default.conf" ]; then
            echo "Initializing Nginx config to $TARGET..."
            cp ./nginx/${TARGET}.conf ./nginx/conf.d/default.conf
          fi
          ACTIVE_PROFILE=dev docker compose up -d nginx
            
          # 5. 헬스 체크 대기 (Spring Boot 기동 시간 확보)
          echo "Waiting 30 seconds for Spring Boot to start..."
          sleep 30
          
          # 신규 컨테이너가 죽지 않고 살아있는지 확인
          IS_TARGET_ALIVE=$(docker ps --filter "name=ax_hub_mcp_tool-gateway-${TARGET}-1" --filter "status=running" -q)
          
          if [ -z "$IS_TARGET_ALIVE" ]; then
            echo "Health Check Failed! $TARGET container crashed. Rollback."
            echo "Stopping failed $TARGET containers..."
            docker compose stop gateway-$TARGET tool-sms-$TARGET tool-email-$TARGET tool-other-$TARGET tool-payment-$TARGET
            exit 1 # 파이프라인 실패 처리 (구버전은 그대로 유지됨)
          fi
          
          # 6. 트래픽 전환 (Nginx 설정 스위칭)
          echo "Health Check Passed! Switching traffic to $TARGET..."
          mkdir -p ./nginx/conf.d
          cp ./nginx/${TARGET}.conf ./nginx/conf.d/default.conf
          docker compose exec -T nginx nginx -s reload
          
          # 7. 구버전 종료
          echo "Traffic switched. Stopping old $OLD_TARGET containers..."
          docker compose stop gateway-$OLD_TARGET tool-sms-$OLD_TARGET tool-email-$OLD_TARGET tool-other-$OLD_TARGET tool-payment-$OLD_TARGET
          
          # 가비지 청소
          docker system prune -f
          docker image prune -f
          
          echo "Blue-Green CI/CD Deploy Success! Currently running: $TARGET"