"""
  Centralized configuration management for SearchEngine.
  
  Loads configuration from environment variables and .env file.
  """
  
  import os
  from pathlib import Path
  from typing import Dict, Any
  from dotenv import load_dotenv
  
  # Load .env file from project root
  PROJECT_ROOT = Path(__file__).parent.parent
  load_dotenv(PROJECT_ROOT / '.env')
  
  
  # Elasticsearch Configuration
  ES_CONFIG = {
      'host': os.getenv('ES_HOST', 'http://localhost:9200'),
      'username': os.getenv('ES_USERNAME'),
      'password': os.getenv('ES_PASSWORD'),
  }
  
  # Redis Configuration
  REDIS_CONFIG = {
      'host': os.getenv('REDIS_HOST', 'localhost'),
      'port': int(os.getenv('REDIS_PORT', 6479)),
      'password': os.getenv('REDIS_PASSWORD'),
  }
  
  # DeepL API Key
  DEEPL_AUTH_KEY = os.getenv('DEEPL_AUTH_KEY')
  
  # Customer Configuration
  CUSTOMER_ID = os.getenv('CUSTOMER_ID', 'customer1')
  
  # API Service Configuration
  API_HOST = os.getenv('API_HOST', '0.0.0.0')

  API_PORT = int(os.getenv('API_PORT', 6002))

  
  # Model Directories
  TEXT_MODEL_DIR = os.getenv('TEXT_MODEL_DIR', '/data/tw/models/bge-m3')
  IMAGE_MODEL_DIR = os.getenv('IMAGE_MODEL_DIR', '/data/tw/models/cn-clip')
  
  # Cache Directory
  CACHE_DIR = os.getenv('CACHE_DIR', '.cache')
  

  # MySQL Database Configuration (Shoplazza)
  DB_CONFIG = {

      'host': os.getenv('DB_HOST'),
      'port': int(os.getenv('DB_PORT', 3306)) if os.getenv('DB_PORT') else 3306,
      'database': os.getenv('DB_DATABASE'),
      'username': os.getenv('DB_USERNAME'),
      'password': os.getenv('DB_PASSWORD'),

  }
  

  
  def get_es_config() -> Dict[str, Any]:
      """Get Elasticsearch configuration."""
      return ES_CONFIG.copy()
  
  
  def get_redis_config() -> Dict[str, Any]:
      """Get Redis configuration."""
      return REDIS_CONFIG.copy()
  
  
  def get_deepl_key() -> str:
      """Get DeepL API key."""
      return DEEPL_AUTH_KEY
  
  
  def get_customer_id() -> str:
      """Get default customer ID."""
      return CUSTOMER_ID
  
  

  def get_db_config() -> Dict[str, Any]:
      """Get MySQL database configuration."""
      return DB_CONFIG.copy()
  
  

  def print_config():
      """Print current configuration (with sensitive data masked)."""
      print("=" * 60)
      print("SearchEngine Configuration")
      print("=" * 60)
  
      print("\nElasticsearch:")
      print(f"  Host: {ES_CONFIG['host']}")
      print(f"  Username: {ES_CONFIG['username']}")
      print(f"  Password: {'*' * 10 if ES_CONFIG['password'] else 'None'}")
  
      print("\nRedis:")
      print(f"  Host: {REDIS_CONFIG['host']}")
      print(f"  Port: {REDIS_CONFIG['port']}")
      print(f"  Password: {'*' * 10 if REDIS_CONFIG['password'] else 'None'}")
  
      print("\nDeepL:")
      print(f"  API Key: {'*' * 10 if DEEPL_AUTH_KEY else 'None (translation disabled)'}")
  
      print("\nCustomer:")
      print(f"  Customer ID: {CUSTOMER_ID}")
  
      print("\nAPI Service:")
      print(f"  Host: {API_HOST}")
      print(f"  Port: {API_PORT}")
  
      print("\nModels:")
      print(f"  Text Model: {TEXT_MODEL_DIR}")
      print(f"  Image Model: {IMAGE_MODEL_DIR}")
  
      print("\nCache:")
      print(f"  Cache Directory: {CACHE_DIR}")
  

      print("\nMySQL Database:")
      print(f"  Host: {DB_CONFIG['host']}")
      print(f"  Port: {DB_CONFIG['port']}")
      print(f"  Database: {DB_CONFIG['database']}")
      print(f"  Username: {DB_CONFIG['username']}")
      print(f"  Password: {'*' * 10 if DB_CONFIG['password'] else 'None'}")
  

      print("=" * 60)
  
  
  if __name__ == "__main__":
      print_config()