import traceback
from typing import Optional

from cpl_core.configuration.configuration_model_abc import ConfigurationModelABC
from cpl_core.console.console import Console
from cpl_core.console.foreground_color_enum import ForegroundColorEnum
from cpl_core.database.database_settings_name_enum import DatabaseSettingsNameEnum


class DatabaseSettings(ConfigurationModelABC):
    r"""Represents settings for the database connection"""

    def __init__(self):
        ConfigurationModelABC.__init__(self)

        self._host: Optional[str] = None
        self._port: Optional[int] = None
        self._user: Optional[str] = None
        self._password: Optional[str] = None
        self._databse: Optional[str] = None
        self._charset: Optional[str] = None
        self._use_unicode: Optional[bool] = None
        self._buffered: Optional[bool] = None
        self._auth_plugin: Optional[str] = None

    @property
    def host(self) -> Optional[str]:
        return self._host

    @property
    def port(self) -> Optional[int]:
        return self._port

    @property
    def user(self) -> Optional[str]:
        return self._user

    @property
    def password(self) -> Optional[str]:
        return self._password

    @property
    def database(self) -> Optional[str]:
        return self._databse

    @property
    def charset(self) -> Optional[str]:
        return self._charset

    @property
    def use_unicode(self) -> Optional[bool]:
        return self._use_unicode

    @property
    def buffered(self) -> Optional[bool]:
        return self._buffered

    @property
    def auth_plugin(self) -> Optional[str]:
        return self._auth_plugin

    def from_dict(self, settings: dict):
        r"""Sets attributes from given dict

        Parameter
        ---------
        settings: :class:`dict`
        """
        try:
            self._host = settings[DatabaseSettingsNameEnum.host.value]
            if DatabaseSettingsNameEnum.port.value in settings:
                self._port = settings[DatabaseSettingsNameEnum.port.value]
            else:
                self._port = 3306
            self._user = settings[DatabaseSettingsNameEnum.user.value]
            self._password = settings[DatabaseSettingsNameEnum.password.value]
            self._databse = settings[DatabaseSettingsNameEnum.database.value]
            
            if DatabaseSettingsNameEnum.charset.value in settings:
                self._charset = settings[DatabaseSettingsNameEnum.charset.value]
            
            if DatabaseSettingsNameEnum.buffered.value in settings:
                self._use_unicode = bool(settings[DatabaseSettingsNameEnum.use_unicode.value])
            
            if DatabaseSettingsNameEnum.buffered.value in settings:
                self._buffered = bool(settings[DatabaseSettingsNameEnum.buffered.value])
            
            if DatabaseSettingsNameEnum.auth_plugin.value in settings:
                self._auth_plugin = settings[DatabaseSettingsNameEnum.auth_plugin.value]
        except Exception as e:
            Console.set_foreground_color(ForegroundColorEnum.red)
            Console.write_line(f'[ ERROR ] [ {__name__} ]: Reading error in {type(self).__name__} settings')
            Console.write_line(f'[ EXCEPTION ] [ {__name__} ]: {e} -> {traceback.format_exc()}')
            Console.set_foreground_color(ForegroundColorEnum.default)