"""
Settings and environment configuration
"""
import os
from functools import lru_cache
from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    """Application settings"""
    
    # OpenAI API key for embeddings
    openai_api_key: str
    
    # TMDB API key for movie data
    tmdb_api_key: str
    
    # API authentication token
    api_token: str
    
    # Environment (dev/prod)
    env: str = "dev"
    
    # Logging level
    log_level: str = "INFO"
    
    class Config:
        env_file = ".env"
        env_file_encoding = "utf-8"


@lru_cache()
def get_settings() -> Settings:
    """Get cached settings instance"""
    return Settings()