from functools import lru_cache

from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    model_config = SettingsConfigDict(env_file=".env", env_file_encoding="utf-8", extra="ignore")

    db_host: str = "127.0.0.1"
    db_port: int = 3306
    db_user: str = "root"
    db_password: str = ""
    db_name: str = "radius"

    cors_origins: str = "*"
    default_limit: int = 50
    max_limit: int = 500

    @property
    def database_url(self) -> str:
        from urllib.parse import quote_plus

        return (
            f"mysql+pymysql://{self.db_user}:{quote_plus(self.db_password)}"
            f"@{self.db_host}:{self.db_port}/{self.db_name}?charset=utf8mb4"
        )

    @property
    def cors_origin_list(self) -> list[str]:
        return [o.strip() for o in self.cors_origins.split(",") if o.strip()]


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