import secrets
import warnings
from typing import Annotated, Any, Literal
from pydantic import (
    MySQLDsn
)
from pydantic_core import MultiHostUrl
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    """
    """
    model_config = SettingsConfigDict(
        # One level above ./backend
        env_file='../.env',
        env_ignore_empty=True,
        extra='ignore'
    )
    SECRET_KEY: str = secrets.token_urlsafe(32)
    ACCESS_TOKEN_EXPIRE_MINUTES: int = 60 * 24 * 8 # 8 days

    MYSQL_SERVER: str
    MYSQL_PORT: int = 3306
    MYSQL_USER: str
    MYSQL_PASSWORD: str = ""
    MYSQL_DB: str = ""

    @computed_field # type: ignore[prop-decorator]
    @property
    def SQLALCHEMY_DATABASE_URI(self) -> MySQLDsn:
        return MultiHostUrl.build(
            scheme="mysql+mysqldb",
            username=self.MYSQL_USER,
            password=self.MYSQL_PASSWORD,
            host=self.MYSQL_SERVER,
            port=self.MYSQL_PORT,
            path=self.MYSQL_DB
        ) # type: ignore

settings = Settings() # type: ignore