version: "3.9"

services:
  # ─── Message Broker & Cache ───────────────────────────────────────
  redis:
    image: redis:7-alpine
    container_name: smartclass-redis
    ports:
      - "6379:6379"
    volumes:
      - redis_data:/data
    command: redis-server --appendonly yes --maxmemory 256mb --maxmemory-policy allkeys-lru
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 3s
      retries: 5
    restart: unless-stopped
    networks:
      - smartclass-net

  # ─── Primary Database ─────────────────────────────────────────────
  postgres:
    image: postgres:16-alpine
    container_name: smartclass-postgres
    ports:
      - "5432:5432"
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-sc_user}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-sc_password}
      POSTGRES_DB: ${POSTGRES_DB:-smartclass}
    volumes:
      - postgres_data:/var/lib/postgresql/data
      - ./services/api/init_db.sql:/docker-entrypoint-initdb.d/init.sql:ro
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-sc_user} -d ${POSTGRES_DB:-smartclass}"]
      interval: 10s
      timeout: 5s
      retries: 5
    restart: unless-stopped
    networks:
      - smartclass-net

  # ─── FastAPI Server ────────────────────────────────────────────────
  api:
    build:
      context: ./services/api
      dockerfile: Dockerfile
    container_name: smartclass-api
    ports:
      - "8000:8000"
    environment:
      DATABASE_URL: postgresql+asyncpg://${POSTGRES_USER:-sc_user}:${POSTGRES_PASSWORD:-sc_password}@postgres:5432/${POSTGRES_DB:-smartclass}
      REDIS_URL: redis://redis:6379
      JWT_SECRET_KEY: ${JWT_SECRET_KEY:?JWT_SECRET_KEY must be set}
      CORS_ORIGINS: ${CORS_ORIGINS:-["http://localhost:5173"]}
      ENVIRONMENT: ${ENVIRONMENT:-development}
      LOG_LEVEL: ${LOG_LEVEL:-info}
    depends_on:
      redis:
        condition: service_healthy
      postgres:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health')"]
      interval: 15s
      timeout: 5s
      retries: 3
      start_period: 30s
    restart: unless-stopped
    networks:
      - smartclass-net

  # ─── Background Worker (Redis Consumer) ───────────────────────────
  api_worker:
    build:
      context: ./services/api
      dockerfile: Dockerfile
    container_name: smartclass-worker
    command: python -m app.worker
    environment:
      DATABASE_URL: postgresql+asyncpg://${POSTGRES_USER:-sc_user}:${POSTGRES_PASSWORD:-sc_password}@postgres:5432/${POSTGRES_DB:-smartclass}
      REDIS_URL: redis://redis:6379
      ENVIRONMENT: ${ENVIRONMENT:-development}
      LOG_LEVEL: ${LOG_LEVEL:-info}
    depends_on:
      redis:
        condition: service_healthy
      postgres:
        condition: service_healthy
      api:
        condition: service_healthy
    restart: unless-stopped
    networks:
      - smartclass-net

  # ─── Edge Pipeline (Test Mode) ────────────────────────────────────
  edge:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: smartclass-edge
    ports:
      - "9100:9100"
    environment:
      REDIS_URL: redis://redis:6379
      REDIS_PASSWORD: ${REDIS_PASSWORD:-}
      EDGE_CONFIG_PATH: /opt/smartclass/config/edge_config.yaml
      PYTHONPATH: /opt/smartclass/src
      EDGE_MODE: ${EDGE_MODE:-test}
    volumes:
      - ./config:/opt/smartclass/config:ro
      - ./models:/opt/smartclass/models:ro
      - ./data:/opt/smartclass/data
    depends_on:
      redis:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:9100/metrics')"]
      interval: 15s
      timeout: 5s
      retries: 3
      start_period: 45s
    restart: unless-stopped
    networks:
      - smartclass-net

  # ─── Frontend (React + Nginx) ─────────────────────────────────────
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
      args:
        VITE_API_URL: ${VITE_API_URL:-http://localhost:8000}
    container_name: smartclass-frontend
    ports:
      - "5173:80"
    depends_on:
      api:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://127.0.0.1:80/"]
      interval: 15s
      timeout: 5s
      retries: 3
    restart: unless-stopped
    networks:
      - smartclass-net

  # ─── Metrics Collection ───────────────────────────────────────────
  prometheus:
    image: prom/prometheus:v2.51.0
    container_name: smartclass-prometheus
    ports:
      - "9090:9090"
    volumes:
      - ./monitoring/prometheus.yml:/etc/prometheus/prometheus.yml:ro
      - ./monitoring/smartclass_alerts.yml:/etc/prometheus/rules/smartclass_alerts.yml:ro
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--storage.tsdb.retention.time=30d'
      - '--web.enable-lifecycle'
    depends_on:
      - api
      - edge
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://127.0.0.1:9090/-/healthy"]
      interval: 15s
      timeout: 5s
      retries: 3
    restart: unless-stopped
    networks:
      - smartclass-net

volumes:
  redis_data:
  postgres_data:
  prometheus_data:

networks:
  smartclass-net:
    driver: bridge