#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
配置管理器
===========

負責處理用戶配置的載入、保存和管理。
"""

import json
from pathlib import Path
from typing import Dict, Any

from ...debug import gui_debug_log as debug_log


class ConfigManager:
    """配置管理器"""
    
    def __init__(self):
        self._config_file = self._get_config_file_path()
        self._config_cache = {}
        self._load_config()
    
    def _get_config_file_path(self) -> Path:
        """獲取配置文件路徑"""
        config_dir = Path.home() / ".config" / "mcp-feedback-enhanced"
        config_dir.mkdir(parents=True, exist_ok=True)
        return config_dir / "ui_settings.json"
    
    def _load_config(self) -> None:
        """載入配置"""
        try:
            if self._config_file.exists():
                with open(self._config_file, 'r', encoding='utf-8') as f:
                    self._config_cache = json.load(f)
                debug_log("配置文件載入成功")
            else:
                self._config_cache = {}
                debug_log("配置文件不存在，使用預設配置")
        except Exception as e:
            debug_log(f"載入配置失敗: {e}")
            self._config_cache = {}
    
    def _save_config(self) -> None:
        """保存配置"""
        try:
            with open(self._config_file, 'w', encoding='utf-8') as f:
                json.dump(self._config_cache, f, ensure_ascii=False, indent=2)
            debug_log("配置文件保存成功")
        except Exception as e:
            debug_log(f"保存配置失敗: {e}")
    
    def get(self, key: str, default: Any = None) -> Any:
        """獲取配置值"""
        return self._config_cache.get(key, default)
    
    def set(self, key: str, value: Any) -> None:
        """設置配置值"""
        self._config_cache[key] = value
        self._save_config()
    
    def get_layout_mode(self) -> bool:
        """獲取佈局模式（False=分離模式，True=合併模式）"""
        return self.get('combined_mode', False)
    
    def set_layout_mode(self, combined_mode: bool) -> None:
        """設置佈局模式"""
        self.set('combined_mode', combined_mode)
        debug_log(f"佈局模式設置: {'合併模式' if combined_mode else '分離模式'}")
    
    def get_language(self) -> str:
        """獲取語言設置"""
        return self.get('language', 'zh-TW')
    
    def set_language(self, language: str) -> None:
        """設置語言"""
        self.set('language', language)
        debug_log(f"語言設置: {language}")