# Docker Compose configuration for Comment Sentiment Analyzer
# Provides complete development and production environment setup

version: "3.8"

services:
  # ============================================================================
  # Backend API Service
  # ============================================================================
  api:
    build:
      context: ./backend
      dockerfile: Dockerfile
      target: production
    container_name: comment-analyzer-api
    restart: unless-stopped
    ports:
      - "${API_PORT:-3000}:5628"
    environment:
      # Application Configuration
      - NODE_ENV=${NODE_ENV:-production}
      - PORT=3000
      - HOST=0.0.0.0

      # Database Configuration
      - DATABASE_URL=postgresql://${POSTGRES_USER:-analyzer}:${POSTGRES_PASSWORD:-secure_password}@db:5432/${POSTGRES_DB:-comment_analyzer}

      # Redis Configuration
      - REDIS_URL=redis://redis:6379

      # JWT Configuration
      - JWT_SECRET=${JWT_SECRET:-your-super-secure-jwt-secret-key-change-this-in-production}
      - JWT_EXPIRES_IN=${JWT_EXPIRES_IN:-7d}

      # OAuth Configuration
      - GOOGLE_CLIENT_ID=${GOOGLE_CLIENT_ID}
      - GOOGLE_CLIENT_SECRET=${GOOGLE_CLIENT_SECRET}
      - FACEBOOK_APP_ID=${FACEBOOK_APP_ID}
      - FACEBOOK_APP_SECRET=${FACEBOOK_APP_SECRET}
      - TWITTER_API_KEY=${TWITTER_API_KEY}
      - TWITTER_API_SECRET=${TWITTER_API_SECRET}
      - TIKTOK_CLIENT_KEY=${TIKTOK_CLIENT_KEY}
      - TIKTOK_CLIENT_SECRET=${TIKTOK_CLIENT_SECRET}

      # AI Service Configuration
      - OPENAI_API_KEY=${OPENAI_API_KEY}
      - GEMINI_API_KEY=${GEMINI_API_KEY}

      # Application URLs
      - FRONTEND_URL=${FRONTEND_URL:-http://localhost:5628}
      - API_BASE_URL=${API_BASE_URL:-http://localhost:5628}

      # Monitoring and Logging
      - LOG_LEVEL=${LOG_LEVEL:-info}
      - ENABLE_METRICS=${ENABLE_METRICS:-true}

      # Security Configuration
      - CORS_ORIGIN=${CORS_ORIGIN:-http://localhost:5628}
      - RATE_LIMIT_WINDOW_MS=${RATE_LIMIT_WINDOW_MS:-900000}
      - RATE_LIMIT_MAX_REQUESTS=${RATE_LIMIT_MAX_REQUESTS:-100}

    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    networks:
      - comment-analyzer-network
    volumes:
      # Mount logs directory for persistent logging
      - ./logs:/app/logs
      # Mount uploads directory for file storage
      - ./uploads:/app/uploads
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5628/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 60s

  # ============================================================================
  # Frontend Application Service
  # ============================================================================
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
      target: production
      args:
        - NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL:-http://localhost:5628}
        - NEXT_PUBLIC_APP_URL=${NEXT_PUBLIC_APP_URL:-http://localhost:5628}
    container_name: comment-analyzer-frontend
    restart: unless-stopped
    ports:
      - "${FRONTEND_PORT:-5628}"
    environment:
      - NODE_ENV=${NODE_ENV:-production}
      - NEXT_PUBLIC_API_URL=${NEXT_PUBLIC_API_URL:-http://localhost:5628}
      - NEXT_PUBLIC_APP_URL=${NEXT_PUBLIC_APP_URL:-http://localhost:5628}
    depends_on:
      - api
    networks:
      - comment-analyzer-network
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5628/api/health"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 60s

  # ============================================================================
  # PostgreSQL Database Service
  # ============================================================================
  db:
    image: postgres:15-alpine
    container_name: comment-analyzer-db
    restart: unless-stopped
    ports:
      - "${POSTGRES_PORT:-5432}:5432"
    environment:
      - POSTGRES_DB=${POSTGRES_DB:-comment_analyzer}
      - POSTGRES_USER=${POSTGRES_USER:-analyzer}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-secure_password}
      - POSTGRES_INITDB_ARGS=--encoding=UTF-8 --lc-collate=C --lc-ctype=C
    volumes:
      # Persistent database storage
      - postgres_data:/var/lib/postgresql/data
      # Database initialization scripts
      - ./database/init:/docker-entrypoint-initdb.d
      # Database backups
      - ./database/backups:/backups
    networks:
      - comment-analyzer-network
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-analyzer} -d ${POSTGRES_DB:-comment_analyzer}"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s
    command: >
      postgres -c shared_preload_libraries=pg_stat_statements -c pg_stat_statements.track=all -c max_connections=200 -c shared_buffers=256MB -c effective_cache_size=1GB -c maintenance_work_mem=64MB -c checkpoint_completion_target=0.9 -c wal_buffers=16MB -c default_statistics_target=100 -c random_page_cost=1.1 -c effective_io_concurrency=200 -c work_mem=4MB -c min_wal_size=1GB -c max_wal_size=4GB


  # ============================================================================
  # Redis Cache Service
  # ============================================================================
  redis:
    image: redis:7-alpine
    container_name: comment-analyzer-redis
    restart: unless-stopped
    ports:
      - "${REDIS_PORT:-6379}:6379"
    command: >
      redis-server --appendonly yes --appendfsync everysec --maxmemory 512mb --maxmemory-policy allkeys-lru --tcp-keepalive 60 --timeout 300


    volumes:
      # Persistent Redis storage
      - redis_data:/data
      # Redis configuration
      - ./redis/redis.conf:/usr/local/etc/redis/redis.conf
    networks:
      - comment-analyzer-network
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s

  # ============================================================================
  # Nginx Reverse Proxy (Production)
  # ============================================================================
  nginx:
    image: nginx:alpine
    container_name: comment-analyzer-nginx
    restart: unless-stopped
    ports:
      - "${HTTP_PORT:-80}:80"
      - "${HTTPS_PORT:-443}:443"
    volumes:
      # Nginx configuration
      - ./nginx/nginx.conf:/etc/nginx/nginx.conf
      - ./nginx/conf.d:/etc/nginx/conf.d
      # SSL certificates (if using HTTPS)
      - ./nginx/ssl:/etc/nginx/ssl
      # Static files
      - ./nginx/static:/var/www/static
      # Logs
      - ./nginx/logs:/var/log/nginx
    depends_on:
      - api
      - frontend
    networks:
      - comment-analyzer-network
    profiles:
      - production

  # ============================================================================
  # Monitoring Services (Optional)
  # ============================================================================

  # Prometheus for metrics collection
  prometheus:
    image: prom/prometheus:latest
    container_name: comment-analyzer-prometheus
    restart: unless-stopped
    ports:
      - "${PROMETHEUS_PORT:-9090}:9090"
    volumes:
      - ./monitoring/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus_data:/prometheus
    command:
      - "--config.file=/etc/prometheus/prometheus.yml"
      - "--storage.tsdb.path=/prometheus"
      - "--web.console.libraries=/etc/prometheus/console_libraries"
      - "--web.console.templates=/etc/prometheus/consoles"
      - "--storage.tsdb.retention.time=200h"
      - "--web.enable-lifecycle"
    networks:
      - comment-analyzer-network
    profiles:
      - monitoring

  # Grafana for metrics visualization
  grafana:
    image: grafana/grafana:latest
    container_name: comment-analyzer-grafana
    restart: unless-stopped
    ports:
      - "${GRAFANA_PORT:-3002}:5628"
    environment:
      - GF_SECURITY_ADMIN_USER=${GRAFANA_USER:-admin}
      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_PASSWORD:-admin}
      - GF_USERS_ALLOW_SIGN_UP=false
    volumes:
      - grafana_data:/var/lib/grafana
      - ./monitoring/grafana/provisioning:/etc/grafana/provisioning
      - ./monitoring/grafana/dashboards:/var/lib/grafana/dashboards
    depends_on:
      - prometheus
    networks:
      - comment-analyzer-network
    profiles:
      - monitoring

# ============================================================================
# Network Configuration
# ============================================================================
networks:
  comment-analyzer-network:
    driver: bridge
    ipam:
      config:
        - subnet: 172.20.0.0/16

# ============================================================================
# Volume Configuration
# ============================================================================
volumes:
  # Database storage
  postgres_data:
    driver: local

  # Redis storage
  redis_data:
    driver: local

  # Monitoring storage
  prometheus_data:
    driver: local

  grafana_data:
    driver: local