from pydantic_settings import BaseSettings
from pydantic import computed_field

class Settings(BaseSettings):
    POSTGRES_USER: str
    POSTGRES_PASSWORD: str
    POSTGRES_DB: str
    API_PORT: int = 8000
    DEBUG: bool = False

    @computed_field
    @property
    def DATABASE_URL(self) -> str:
        return (
            f"postgresql+asyncpg://"
            f"{self.POSTGRES_USER}:{self.POSTGRES_PASSWORD}"
            f"@db/{self.POSTGRES_DB}"
        )

    class Config:
        env_file = ".env"

settings = Settings()