from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    DATABASE_URL: str = "postgresql://whatsapp_admin:password@localhost:5432/whatsapp_central"
    REDIS_URL: str = "redis://localhost:6379"

    # OpenAI
    OPENAI_API_KEY: str = ""
    OPENAI_MODEL: str = "gpt-3.5-turbo"

    API_GATEWAY_URL: str = "http://localhost:8000"
    WHATSAPP_CORE_URL: str = "http://localhost:3001"

    class Config:
        env_file = ".env"


@lru_cache
def get_settings() -> Settings:
    return Settings()