# Gitea Actions Workflow - vexplor 자동 배포
#
# 환경 변수:
#   - GITEA_DOMAIN: g.wace.me
#   - HARBOR_REGISTRY: harbor.wace.me
#   - K8S_NAMESPACE: vexplor
#
# 필수 Secrets (Repository Settings > Secrets):
#   - HARBOR_USERNAME: Harbor 사용자명
#   - HARBOR_PASSWORD: Harbor 비밀번호
#   - K8S_SSH_KEY: base64로 인코딩된 SSH 비밀키 (쿠버네티스 서버 접속용)
#
# Application Secrets:
#   - k8s/vexplor-secret.yaml 파일에서 관리

name: Deploy vexplor

on:
  push:
    branches:
      - main
      - master
    paths:
      - "backend-node/**"
      - "frontend/**"
      - "docker/**"
      - "k8s/**"
      - ".gitea/workflows/deploy.yml"
  workflow_dispatch:

env:
  GITEA_DOMAIN: g.wace.me
  HARBOR_REGISTRY: localhost:5001
  HARBOR_REGISTRY_K8S: harbor.wace.me
  HARBOR_REGISTRY_EXTERNAL: harbor.wace.me
  HARBOR_PROJECT: speefox_vexplor
  K8S_NAMESPACE: vexplor
  
  # 쿠버네티스 서버 SSH 접속 정보
  K8S_SSH_HOST: 112.168.212.142
  K8S_SSH_PORT: 22
  K8S_SSH_USER: wace

  # Frontend 빌드 환경 변수
  NEXT_PUBLIC_API_URL: "https://api.vexplor.com/api"
  NEXT_PUBLIC_ENV: "production"
  INTERNAL_API_URL: "http://vexplor-backend-service:3001"

  # Frontend 설정
  FRONTEND_IMAGE_NAME: vexplor-frontend
  FRONTEND_DEPLOYMENT_NAME: vexplor-frontend
  FRONTEND_CONTAINER_NAME: vexplor-frontend
  FRONTEND_BUILD_CONTEXT: frontend
  FRONTEND_DOCKERFILE_PATH: docker/deploy/frontend.Dockerfile

  # Backend 설정
  BACKEND_IMAGE_NAME: vexplor-backend
  BACKEND_DEPLOYMENT_NAME: vexplor-backend
  BACKEND_CONTAINER_NAME: vexplor-backend
  BACKEND_BUILD_CONTEXT: backend-node
  BACKEND_DOCKERFILE_PATH: docker/deploy/backend.Dockerfile

jobs:
  build-and-deploy:
    runs-on: ubuntu-24.04

    steps:
      # 작업 디렉토리 정리
      - name: Clean workspace
        run: |
          echo "작업 디렉토리 정리..."
          cd /workspace
          rm -rf source
          mkdir -p source
          echo "정리 완료"

      # 필수 도구 설치
      - name: Install required tools
        run: |
          echo "필수 도구 설치 중..."
          apt-get update -qq
          apt-get install -y git curl ca-certificates gnupg openssh-client

          # Docker 클라이언트 설치
          install -m 0755 -d /etc/apt/keyrings
          curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
          chmod a+r /etc/apt/keyrings/docker.asc

          echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
            $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null

          apt-get update -qq
          apt-get install -y docker-ce-cli

          echo "설치 완료:"
          git --version
          ssh -V
          docker --version

          export DOCKER_HOST=unix:///var/run/docker.sock
          docker version || echo "소켓 연결 대기 중..."

      # 저장소 체크아웃
      - name: Checkout code
        run: |
          echo "저장소 체크아웃..."
          cd /workspace/source

          git clone --depth 1 --branch ${GITHUB_REF_NAME} \
            https://oauth2:${{ github.token }}@${GITEA_DOMAIN}/${GITHUB_REPOSITORY}.git .

          echo "체크아웃 완료"
          git log -1 --oneline

      # 빌드 환경 설정
      - name: Set up build environment
        run: |
          IMAGE_TAG="v$(date +%Y%m%d-%H%M%S)-${GITHUB_SHA::7}"
          echo "IMAGE_TAG=${IMAGE_TAG}" >> $GITHUB_ENV

          # Frontend 이미지
          echo "FRONTEND_FULL_IMAGE=${HARBOR_REGISTRY}/${HARBOR_PROJECT}/${FRONTEND_IMAGE_NAME}" >> $GITHUB_ENV
          echo "FRONTEND_FULL_IMAGE_K8S=${HARBOR_REGISTRY_K8S}/${HARBOR_PROJECT}/${FRONTEND_IMAGE_NAME}" >> $GITHUB_ENV

          # Backend 이미지
          echo "BACKEND_FULL_IMAGE=${HARBOR_REGISTRY}/${HARBOR_PROJECT}/${BACKEND_IMAGE_NAME}" >> $GITHUB_ENV
          echo "BACKEND_FULL_IMAGE_K8S=${HARBOR_REGISTRY_K8S}/${HARBOR_PROJECT}/${BACKEND_IMAGE_NAME}" >> $GITHUB_ENV

          echo "빌드 태그: ${IMAGE_TAG}"

      # Harbor 로그인
      - name: Login to Harbor
        env:
          HARBOR_USER: ${{ secrets.HARBOR_USERNAME }}
          HARBOR_PASS: ${{ secrets.HARBOR_PASSWORD }}
        run: |
          echo "Harbor 로그인..."
          export DOCKER_HOST=unix:///var/run/docker.sock
          echo "${HARBOR_PASS}" | docker login ${HARBOR_REGISTRY} \
            --username ${HARBOR_USER} \
            --password-stdin
          echo "Harbor 로그인 완료"

      # Backend 빌드 및 푸시
      - name: Build and Push Backend image
        run: |
          echo "Backend 이미지 빌드 및 푸시..."
          export DOCKER_HOST=unix:///var/run/docker.sock
          cd /workspace/source

          docker build \
            -t ${BACKEND_FULL_IMAGE}:${IMAGE_TAG} \
            -t ${BACKEND_FULL_IMAGE}:latest \
            -f ${BACKEND_DOCKERFILE_PATH} \
            ${BACKEND_BUILD_CONTEXT}

          docker push ${BACKEND_FULL_IMAGE}:${IMAGE_TAG}
          docker push ${BACKEND_FULL_IMAGE}:latest
          echo "Backend 푸시 완료"

      # Frontend 빌드 및 푸시
      - name: Build and Push Frontend image
        run: |
          echo "Frontend 이미지 빌드 및 푸시..."
          export DOCKER_HOST=unix:///var/run/docker.sock
          cd /workspace/source

          echo "빌드 환경 변수:"
          echo "  NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL}"
          echo "  NEXT_PUBLIC_ENV=${NEXT_PUBLIC_ENV}"

          docker build \
            -t ${FRONTEND_FULL_IMAGE}:${IMAGE_TAG} \
            -t ${FRONTEND_FULL_IMAGE}:latest \
            -f ${FRONTEND_DOCKERFILE_PATH} \
            --build-arg NEXT_PUBLIC_API_URL="${NEXT_PUBLIC_API_URL}" \
            ${FRONTEND_BUILD_CONTEXT}

          docker push ${FRONTEND_FULL_IMAGE}:${IMAGE_TAG}
          docker push ${FRONTEND_FULL_IMAGE}:latest
          echo "Frontend 푸시 완료"

      # SSH 키 설정 (쿠버네티스 서버 접속용)
      - name: Setup SSH Key
        env:
          SSH_KEY_CONTENT: ${{ secrets.K8S_SSH_KEY }}
        run: |
          echo "SSH 키 설정..."

          if [ -z "${SSH_KEY_CONTENT}" ]; then
            echo "K8S_SSH_KEY secret이 설정되지 않았습니다!"
            exit 1
          fi

          mkdir -p ~/.ssh
          echo "${SSH_KEY_CONTENT}" | base64 -d > ~/.ssh/id_rsa
          chmod 600 ~/.ssh/id_rsa

          # known_hosts에 쿠버네티스 서버 추가
          ssh-keyscan -p ${K8S_SSH_PORT} ${K8S_SSH_HOST} >> ~/.ssh/known_hosts 2>/dev/null

          # SSH 연결 테스트
          echo "SSH 연결 테스트..."
          ssh -o StrictHostKeyChecking=no -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} "echo 'SSH 연결 성공'"
          echo "SSH 키 설정 완료"

      # k8s 매니페스트 파일을 쿠버네티스 서버로 전송
      - name: Transfer k8s manifests
        run: |
          echo "k8s 매니페스트 파일 전송..."
          cd /workspace/source

          # 쿠버네티스 서버에 디렉토리 생성
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} "mkdir -p ~/vexplor-deploy/k8s"

          # k8s 파일 전송
          scp -P ${K8S_SSH_PORT} -r k8s/* ${K8S_SSH_USER}@${K8S_SSH_HOST}:~/vexplor-deploy/k8s/

          echo "매니페스트 파일 전송 완료"

      # Kubernetes 배포 (SSH를 통해 원격 실행)
      - name: Deploy to Kubernetes
        env:
          HARBOR_USER: ${{ secrets.HARBOR_USERNAME }}
          HARBOR_PASS: ${{ secrets.HARBOR_PASSWORD }}
        run: |
          echo "Kubernetes 배포 시작 (SSH 원격 실행)..."

          # SSH를 통해 쿠버네티스 서버에서 kubectl 명령 실행
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} << 'DEPLOY_SCRIPT'
          set -e
          cd ~/vexplor-deploy

          echo "네임스페이스 확인..."
          kubectl apply -f k8s/namespace.yaml

          echo "ConfigMap 적용..."
          kubectl apply -f k8s/vexplor-config.yaml -n vexplor

          # Secret 적용 (존재하는 경우에만)
          if [ -f k8s/vexplor-secret.yaml ]; then
            echo "Secret 적용..."
            kubectl apply -f k8s/vexplor-secret.yaml -n vexplor
          fi

          echo "네임스페이스 및 ConfigMap 적용 완료"
          DEPLOY_SCRIPT

          # Harbor Registry Secret 생성 (별도로 처리 - 환경변수 사용)
          echo "Harbor Registry Secret 확인..."
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} "kubectl get secret harbor-registry -n vexplor" > /dev/null 2>&1 || \
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} "kubectl create secret docker-registry harbor-registry \
            --docker-server=${HARBOR_REGISTRY_K8S} \
            --docker-username=${HARBOR_USER} \
            --docker-password='${HARBOR_PASS}' \
            -n vexplor"
          echo "Harbor Registry Secret 확인 완료"

          # Backend 배포
          echo "Backend 배포..."
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} << BACKEND_DEPLOY
          set -e
          cd ~/vexplor-deploy
          kubectl apply -f k8s/vexplor-backend-deployment.yaml -n vexplor

          echo "Backend 이미지 업데이트..."
          kubectl set image deployment/${BACKEND_DEPLOYMENT_NAME} \
            ${BACKEND_CONTAINER_NAME}=${HARBOR_REGISTRY_K8S}/${HARBOR_PROJECT}/${BACKEND_IMAGE_NAME}:latest \
            -n vexplor || true
          kubectl rollout restart deployment/${BACKEND_DEPLOYMENT_NAME} -n vexplor

          echo "Backend Rolling Update 진행 중..."
          kubectl rollout status deployment/${BACKEND_DEPLOYMENT_NAME} -n vexplor --timeout=5m
          echo "Backend 배포 완료"
          BACKEND_DEPLOY

          # Frontend 배포
          echo "Frontend 배포..."
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} << FRONTEND_DEPLOY
          set -e
          cd ~/vexplor-deploy
          kubectl apply -f k8s/vexplor-frontend-deployment.yaml -n vexplor

          echo "Frontend 이미지 업데이트..."
          kubectl set image deployment/${FRONTEND_DEPLOYMENT_NAME} \
            ${FRONTEND_CONTAINER_NAME}=${HARBOR_REGISTRY_K8S}/${HARBOR_PROJECT}/${FRONTEND_IMAGE_NAME}:latest \
            -n vexplor || true
          kubectl rollout restart deployment/${FRONTEND_DEPLOYMENT_NAME} -n vexplor

          echo "Frontend Rolling Update 진행 중..."
          kubectl rollout status deployment/${FRONTEND_DEPLOYMENT_NAME} -n vexplor --timeout=5m
          echo "Frontend 배포 완료"
          FRONTEND_DEPLOY

          # Ingress 배포
          echo "Ingress 배포..."
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} "cd ~/vexplor-deploy && kubectl apply -f k8s/vexplor-ingress.yaml -n vexplor"

          echo "전체 배포 완료!"

      # 배포 검증
      - name: Verify deployment
        run: |
          echo "배포 검증..."
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} << 'VERIFY_SCRIPT'
          echo ""
          echo "Backend 상태:"
          kubectl get deployment vexplor-backend -n vexplor
          kubectl get pods -l app=vexplor-backend -n vexplor
          echo ""
          echo "Frontend 상태:"
          kubectl get deployment vexplor-frontend -n vexplor
          kubectl get pods -l app=vexplor-frontend -n vexplor
          echo ""
          echo "Services:"
          kubectl get svc -n vexplor
          echo ""
          echo "Ingress:"
          kubectl get ingress -n vexplor
          echo ""
          echo "검증 완료"
          VERIFY_SCRIPT

      # 배포 요약
      - name: Deployment summary
        if: success()
        run: |
          echo "=========================================="
          echo "배포가 성공적으로 완료되었습니다!"
          echo "=========================================="
          echo "빌드 버전: ${IMAGE_TAG}"
          echo "Frontend: https://v1.vexplor.com"
          echo "Backend API: https://api.vexplor.com"
          echo "=========================================="

      # 실패 시 롤백
      - name: Rollback on failure
        if: failure()
        run: |
          echo "배포 실패! 이전 버전으로 롤백..."
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} "kubectl rollout undo deployment/vexplor-backend -n vexplor" || true
          ssh -p ${K8S_SSH_PORT} ${K8S_SSH_USER}@${K8S_SSH_HOST} "kubectl rollout undo deployment/vexplor-frontend -n vexplor" || true

      # Harbor 로그아웃
      - name: Logout from Harbor
        if: always()
        run: |
          export DOCKER_HOST=unix:///var/run/docker.sock
          docker logout ${HARBOR_REGISTRY} || true