# File: /share/np-dms/app/docker-compose-app.yml
# DMS Container v1.8.6: Application Stack (Backend + Frontend)
# Application name: lcbp3-app
# ============================================================
# ⚠️  ใช้งานร่วมกับ services อื่นที่รันอยู่แล้วบน QNAP:
#     - mariadb (lcbp3-db)
#     - redis   (lcbp3-redis)
#     - cache   (services)
#     - search  (services)
#     - npm     (lcbp3-npm)
# ============================================================
# 🔒 SECURITY (ADR-016, Tier-1):
#   - ห้าม commit ค่า secret จริงในไฟล์นี้
#   - ใช้ .env (gitignored) คู่กับ compose:
#       docker compose --env-file .env -f docker-compose-app.yml up -d
#   - QNAP Container Station 3.x รองรับ env_file แล้ว
#   - JWT_SECRET (backend) ต้องคนละค่ากับ AUTH_SECRET (frontend NextAuth)
# ============================================================

name: lcbp3

x-restart: &restart_policy
  restart: unless-stopped

x-logging: &default_logging
  logging:
    driver: 'json-file'
    options:
      max-size: '10m'
      max-file: '5'

networks:
  lcbp3:
    external: true

services:
  # ----------------------------------------------------------------
  # 1. Backend API (NestJS)
  # Service Name: backend (ตามที่ NPM อ้างอิง → backend:3000)
  # ----------------------------------------------------------------
  backend:
    <<: [*restart_policy, *default_logging]
    image: lcbp3-backend:${BACKEND_IMAGE_TAG:-latest}
    container_name: backend
    # M4: container hardening
    user: 'node'
    # L1: stdin_open/tty removed — production services ไม่ต้องใช้ interactive TTY
    read_only: true
    tmpfs:
      - /tmp:rw,noexec,nosuid,size=256m
    security_opt:
      - no-new-privileges:true
    cap_drop:
      - ALL
    deploy:
      resources:
        limits:
          cpus: '2.0'
          memory: 1536M
        reservations:
          cpus: '0.5'
          memory: 512M
    env_file:
      - .env
    environment:
      TZ: 'Asia/Bangkok'
      NODE_ENV: 'production'
      # --- Database ---
      DB_HOST: 'mariadb'
      DB_PORT: '3306'
      DB_DATABASE: 'lcbp3'
      DB_USERNAME: 'center'
      DB_PASSWORD: ${DB_PASSWORD:?DB_PASSWORD required}
      # --- Redis ---
      REDIS_HOST: 'cache'
      REDIS_PORT: '6379'
      REDIS_PASSWORD: ${REDIS_PASSWORD:?REDIS_PASSWORD required}
      # --- Elasticsearch ---
      ELASTICSEARCH_HOST: 'search'
      ELASTICSEARCH_PORT: '9200'
      ELASTICSEARCH_USERNAME: ${ELASTICSEARCH_USERNAME:-elastic}
      ELASTICSEARCH_PASSWORD: ${ELASTICSEARCH_PASSWORD:?ELASTICSEARCH_PASSWORD required}
      # --- JWT (backend only) ---
      JWT_SECRET: ${JWT_SECRET:?JWT_SECRET required}
      JWT_EXPIRATION: '8h'
      JWT_REFRESH_SECRET: ${JWT_REFRESH_SECRET:?JWT_REFRESH_SECRET required}
      # --- ClamAV (ADR-016 file upload scan) ---
      CLAMAV_HOST: 'clamav'
      CLAMAV_PORT: '3310'
      # --- Numbering ---
      NUMBERING_LOCK_TIMEOUT: '5000'
      NUMBERING_RESERVATION_TTL: '300'
      # --- File Upload ---
      UPLOAD_TEMP_DIR: '/app/uploads/temp'
      UPLOAD_PERMANENT_DIR: '/app/uploads/permanent'
      PORT: '3000'
      MAX_FILE_SIZE: '52428800'
    networks:
      - lcbp3
    volumes:
      # Two-Phase Storage: จัดเก็บไฟล์นอก container
      - '/share/np-dms-as/data/uploads/temp:/app/uploads/temp'
      - '/share/np-dms-as/data/uploads/permanent:/app/uploads/permanent'
      - '/share/np-dms/data/logs/backend:/app/logs'
      # Mount legacy staging folder to match n8n's output path
      - '/share/np-dms-as/Legacy:/home/node/.n8n-files/staging_ai:ro'
    healthcheck:
      test: ['CMD', 'curl', '-f', 'http://localhost:3000/health']
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s
    depends_on:
      clamav:
        condition: service_healthy

  # ----------------------------------------------------------------
  # 2. Frontend Web App (Next.js)
  # Service Name: frontend (ตามที่ NPM อ้างอิง → frontend:3000)
  # ----------------------------------------------------------------
  frontend:
    <<: [*restart_policy, *default_logging]
    image: lcbp3-frontend:${FRONTEND_IMAGE_TAG:-latest}
    container_name: frontend
    # M4: container hardening (Next.js standalone runs as 'nextjs' user by default)
    user: 'nextjs'
    read_only: true
    tmpfs:
      - /tmp:rw,noexec,nosuid,size=128m
      - /app/.next/cache:rw,size=256m
    security_opt:
      - no-new-privileges:true
    cap_drop:
      - ALL
    # L1: stdin_open/tty removed
    deploy:
      resources:
        limits:
          cpus: '2.0'
          memory: 2G
        reservations:
          cpus: '0.25'
          memory: 512M
    env_file:
      - .env
    environment:
      TZ: 'Asia/Bangkok'
      NODE_ENV: 'production'
      HOSTNAME: '0.0.0.0'
      PORT: '3000'
      # --- API Backend URL ---
      NEXT_PUBLIC_API_URL: 'https://backend.np-dms.work/api'
      # --- NextAuth (ห้ามใช้ค่าเดียวกับ JWT_SECRET) ---
      AUTH_SECRET: ${AUTH_SECRET:?AUTH_SECRET required}
      AUTH_URL: 'https://lcbp3.np-dms.work'
      AUTH_TRUST_HOST: 'true'
      INTERNAL_API_URL: 'http://backend:3000/api'
    networks:
      - lcbp3
    healthcheck:
      test: ['CMD', 'curl', '-f', 'http://localhost:3000/']
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 60s
    depends_on:
      backend:
        condition: service_healthy

  # ----------------------------------------------------------------
  # 3. ClamAV (Antivirus scanning for file uploads — ADR-016)
  # Service Name: clamav (Backend อ้างอิง CLAMAV_HOST=clamav, port 3310)
  # ----------------------------------------------------------------
  clamav:
    <<: [*restart_policy, *default_logging]
    image: clamav/clamav:1.3
    container_name: clamav
    security_opt:
      - no-new-privileges:true
    cap_drop:
      - ALL
    cap_add:
      - CHOWN
      - SETUID
      - SETGID
    deploy:
      resources:
        limits:
          cpus: '1.0'
          memory: 2G
        reservations:
          cpus: '0.25'
          memory: 1G
    environment:
      TZ: 'Asia/Bangkok'
      CLAMAV_NO_FRESHCLAMD: 'false'
      CLAMAV_NO_CLAMD: 'false'
      CLAMD_STARTUP_TIMEOUT: '1800'
    networks:
      - lcbp3
    volumes:
      # cache definitions เพื่อไม่ต้อง download ทุกครั้งที่ restart
      - '/share/np-dms/clamav/data:/var/lib/clamav'
      - '/share/np-dms/data/logs/clamav:/var/log/clamav'
    healthcheck:
      test: ['CMD', 'clamdcheck.sh']
      interval: 60s
      timeout: 30s
      retries: 3
      start_period: 300s