import os
from functools import lru_cache
from typing import Annotated

import yaml  # type: ignore
from fastapi import Depends

from api.infrastructure.auth.jwt_settings import JwtSettings
from api.infrastructure.dependencies.stub import Stub
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


def get_db_settings() -> DBSettings:
    config_data = yaml_loader(
        file=os.getenv("CONFIG_PATH", "./config/api_config.yml"),
    )
    return 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"],
    )


def get_jwt_settings() -> JwtSettings:
    config_data = yaml_loader(
        file=os.getenv("CONFIG_PATH", "./config/api_config.yml"),
    )
    return JwtSettings(
        secret=config_data["jwt"]["secret_key"],
        expires_in=int(config_data["jwt"]["expires_in"]),
        algorithm=config_data["jwt"]["algorithm"],
    )


@lru_cache
def app_settings(
    db_conf: Annotated[DBSettings, Depends(Stub(DBSettings))],
    jwt_conf: Annotated[JwtSettings, Depends(Stub(JwtSettings))],
) -> Settings:
    return Settings(
        db=db_conf,
        jwt=jwt_conf,
    )