import json
from functools import lru_cache

from dotenv import load_dotenv
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    ENVIRONMENT: str = "dev"

    SWAGGER_HOST: str = "localhost:5000"

    API_PREFIX_STRING: str = "/api"
    API_DESCRIPTION: str = "vtb_dashboard_api"

    DASHBOARD_LOG: str = "vtb_dashboard_api.log"

    POSTGRES_SERVER: str = "localhost"
    POSTGRES_PORT: int = 5432
    POSTGRES_USER: str
    POSTGRES_PASSWORD: str
    POSTGRES_DB: str = "virt.dashboard"

    DEBUG: bool = False

    @property
    def SQLALCHEMY_DATABASE_URI(self):
        return f"postgresql://{self.POSTGRES_USER}:{self.POSTGRES_PASSWORD}@{self.POSTGRES_SERVER}:{self.POSTGRES_PORT}/{self.POSTGRES_DB}" # noqa

    @property
    def CUSTOM_SWAGGER(self):
        with open("custom_swagger.json") as j_fp:
            custom_swagger = json.load(j_fp)
            custom_swagger["host"] = self.SWAGGER_HOST
            return custom_swagger

    model_config = SettingsConfigDict(extra='allow', env_file=".env")


@lru_cache
def get_config():
    load_dotenv()
    return Settings()


config = get_config()