from app.core.observer_manager import ObserverManager, NotificationType
from app.core.language_manager import LanguageManager
from app.core.theme_manager import ThemeManager
from app.core.settings_manager import SettingsManager

class MainManager:
    _instance = None
    def __init__(self):
        if MainManager._instance is not None:
            raise Exception("This class is a singleton!")
        else:
            MainManager._instance = self
            self.observer_manager = ObserverManager()
            self.theme_manager = ThemeManager()
            self.settings_manager = SettingsManager(self.observer_manager,self.theme_manager)
            self.language_manager = LanguageManager(self.settings_manager)

    def get_observer_manager(self):
        return self.observer_manager
    def get_theme_manager(self):
        return self.theme_manager
    def get_settings_manager(self):
        return self.settings_manager
    def get_language_manager(self):
        return self.language_manager
    
    @classmethod
    def get_instance(cls):
        if cls._instance is None:
            cls._instance = cls()
        return cls._instance