from pydantic_settings import BaseSettings
from functools import lru_cache


class Settings(BaseSettings):
    # Database
    database_url: str = "postgresql://user:password@localhost:5432/teamchat"
    test_database_url: str = "postgresql://user:password@localhost:5432/teamchat_test"
    
    # JWT
    secret_key: str = "your-secret-key-change-this"
    algorithm: str = "HS256"
    access_token_expire_minutes: int = 30
    
    # File Upload
    upload_dir: str = "./uploads"
    max_upload_size: int = 20 * 1024 * 1024  # 20 MB
    
    # CORS
    frontend_url: str = "http://localhost:5173"
    
    class Config:
        env_file = ".env"


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