# Docker Compose para stack completo: Frontend + Backend + DB
# Uso: docker compose -f docker-compose.yml up -d

services:
  # ============================================
  # FRONTEND (React/Vite + Nginx)
  # ============================================
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
      args:
        VITE_API_URL: /api
    image: ${COMPOSE_PROJECT_NAME:-myapp}-frontend:latest
    container_name: ${COMPOSE_PROJECT_NAME:-myapp}-frontend
    restart: unless-stopped
    ports:
      - "${FRONTEND_PORT:-3000}:80"
    depends_on:
      backend:
        condition: service_healthy
    networks:
      - app-network
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:80"]
      interval: 30s
      timeout: 5s
      retries: 3

  # ============================================
  # BACKEND (Go)
  # ============================================
  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile
    image: ${COMPOSE_PROJECT_NAME:-myapp}-backend:latest
    container_name: ${COMPOSE_PROJECT_NAME:-myapp}-backend
    restart: unless-stopped
    ports:
      - "${BACKEND_PORT:-8080}:8080"
    environment:
      - DATABASE_URL=postgres://${POSTGRES_USER:-app}:${POSTGRES_PASSWORD:-secret}@db:5432/${POSTGRES_DB:-app}?sslmode=disable
      - REDIS_URL=redis://redis:6379
      - JWT_SECRET=${JWT_SECRET:-change-me-in-production}
      - ENV=${ENV:-production}
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    networks:
      - app-network
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
      interval: 30s
      timeout: 5s
      retries: 3

  # ============================================
  # DATABASE (PostgreSQL)
  # ============================================
  db:
    image: postgres:16-alpine
    container_name: ${COMPOSE_PROJECT_NAME:-myapp}-db
    restart: unless-stopped
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-app}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-secret}
      POSTGRES_DB: ${POSTGRES_DB:-app}
    volumes:
      - postgres_data:/var/lib/postgresql/data
      # Opcional: scripts de inicialización
      # - ./init.sql:/docker-entrypoint-initdb.d/init.sql
    ports:
      - "${POSTGRES_PORT:-5432}:5432"
    networks:
      - app-network
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-app} -d ${POSTGRES_DB:-app}"]
      interval: 10s
      timeout: 5s
      retries: 5

  # ============================================
  # CACHE (Redis)
  # ============================================
  redis:
    image: redis:7-alpine
    container_name: ${COMPOSE_PROJECT_NAME:-myapp}-redis
    restart: unless-stopped
    command: redis-server --appendonly yes
    volumes:
      - redis_data:/data
    ports:
      - "${REDIS_PORT:-6379}:6379"
    networks:
      - app-network
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5

# ============================================
# NETWORKS
# ============================================
networks:
  app-network:
    driver: bridge

# ============================================
# VOLUMES
# ============================================
volumes:
  postgres_data:
    name: ${COMPOSE_PROJECT_NAME:-myapp}_postgres_data
  redis_data:
    name: ${COMPOSE_PROJECT_NAME:-myapp}_redis_data