import os
from functools import lru_cache

import yaml  # type: ignore

from api.infrastructure.persistence.db_setings import DBSettings
from api.infrastructure.settings import Settings


def yaml_loader(file: str) -> dict[str, dict[str, str]]:
    with open(file) as f:
        yaml_data: dict = yaml.safe_load(f)
    return yaml_data


@lru_cache
def app_settings() -> Settings:
    config_data = yaml_loader(
        file=os.getenv("CONFIG_PATH", "./config/api_config.yml"),
    )

    return Settings(
        db=DBSettings(
            pg_user=config_data["db"]["user"],
            pg_pass=config_data["db"]["password"],
            pg_host=config_data["db"]["host"],
            pg_port=int(config_data["db"]["port"]),
            pg_db=config_data["db"]["database"],
        ),
    )