import json
import os

class SettingsManager:
    """
    로컬 JSON 파일("settings.json")을 이용해 사용자 설정(로그인 정보, GUI 설정 등)을 저장/불러옵니다.
    """
    def __init__(self, filename="settings.json"):
        self.filename = filename
        self.settings = {}
        self.load_settings()

    def load_settings(self):
        try:
            if os.path.exists(self.filename):
                with open(self.filename, "r", encoding="utf-8") as f:
                    self.settings = json.load(f)
            else:
                self.settings = {}
        except Exception as e:
            print("설정 불러오기 오류:", e)
            self.settings = {}

    def save_settings(self):
        try:
            with open(self.filename, "w", encoding="utf-8") as f:
                json.dump(self.settings, f, indent=4, ensure_ascii=False)
        except Exception as e:
            print("설정 저장 중 오류 발생:", e)

    def save_user_info(self, user_info: dict):
        self.settings["user"] = user_info
        self.save_settings()

    def load_user_info(self) -> dict:
        return self.settings.get("user", {})

    def save_gui_settings(self, gui_settings: dict):
        self.settings["gui"] = gui_settings
        self.save_settings()

    def load_gui_settings(self) -> dict:
        return self.settings.get("gui", {})