// 时间: 2026-04-02
// 功能: 深色模式主题模型
// 介绍: 定义主题模式枚举和相关数据结构

import 'package:flutter/material.dart';

/// 应用主题模式枚举
enum AppThemeMode {
  /// 跟随系统
  system,
  /// 浅色模式
  light,
  /// 深色模式
  dark,
}

/// 主题模式扩展方法
extension AppThemeModeExtension on AppThemeMode {
  /// 获取主题模式对应的 ThemeMode
  ThemeMode get themeMode {
    switch (this) {
      case AppThemeMode.system:
        return ThemeMode.system;
      case AppThemeMode.light:
        return ThemeMode.light;
      case AppThemeMode.dark:
        return ThemeMode.dark;
    }
  }

  /// 获取主题模式显示名称
  String get displayName {
    switch (this) {
      case AppThemeMode.system:
        return '跟随系统';
      case AppThemeMode.light:
        return '浅色模式';
      case AppThemeMode.dark:
        return '深色模式';
    }
  }

  /// 获取主题模式图标
  IconData get icon {
    switch (this) {
      case AppThemeMode.system:
        return Icons.brightness_auto;
      case AppThemeMode.light:
        return Icons.brightness_high;
      case AppThemeMode.dark:
        return Icons.brightness_2;
    }
  }
}

/// 主题配置数据类
class ThemeConfig {
  /// 是否启用深色模式（简化开关，true=深色, false=跟随系统或浅色）
  final bool isDarkMode;

  /// 主题模式
  final AppThemeMode themeMode;

  /// 主题色索引
  final int themeColorIndex;

  /// 强调色索引
  final int accentColorIndex;

  /// 字体大小索引 (0: 小, 1: 中, 2: 大)
  final int fontSizeIndex;

  /// 是否启用动画
  final bool enableAnimation;

  /// 是否启用模糊效果
  final bool enableBlurEffect;

  const ThemeConfig({
    this.isDarkMode = false,
    this.themeMode = AppThemeMode.system,
    this.themeColorIndex = 0,
    this.accentColorIndex = 0,
    this.fontSizeIndex = 1,
    this.enableAnimation = true,
    this.enableBlurEffect = true,
  });

  /// 从 JSON 创建
  factory ThemeConfig.fromJson(Map<String, dynamic> json) {
    return ThemeConfig(
      isDarkMode: json['isDarkMode'] ?? false,
      themeMode: AppThemeMode.values[json['themeMode'] ?? 0],
      themeColorIndex: json['themeColorIndex'] ?? 0,
      accentColorIndex: json['accentColorIndex'] ?? 0,
      fontSizeIndex: json['fontSizeIndex'] ?? 1,
      enableAnimation: json['enableAnimation'] ?? true,
      enableBlurEffect: json['enableBlurEffect'] ?? true,
    );
  }

  /// 转换为 JSON
  Map<String, dynamic> toJson() {
    return {
      'isDarkMode': isDarkMode,
      'themeMode': themeMode.index,
      'themeColorIndex': themeColorIndex,
      'accentColorIndex': accentColorIndex,
      'fontSizeIndex': fontSizeIndex,
      'enableAnimation': enableAnimation,
      'enableBlurEffect': enableBlurEffect,
    };
  }

  /// 复制并修改
  ThemeConfig copyWith({
    bool? isDarkMode,
    AppThemeMode? themeMode,
    int? themeColorIndex,
    int? accentColorIndex,
    int? fontSizeIndex,
    bool? enableAnimation,
    bool? enableBlurEffect,
  }) {
    return ThemeConfig(
      isDarkMode: isDarkMode ?? this.isDarkMode,
      themeMode: themeMode ?? this.themeMode,
      themeColorIndex: themeColorIndex ?? this.themeColorIndex,
      accentColorIndex: accentColorIndex ?? this.accentColorIndex,
      fontSizeIndex: fontSizeIndex ?? this.fontSizeIndex,
      enableAnimation: enableAnimation ?? this.enableAnimation,
      enableBlurEffect: enableBlurEffect ?? this.enableBlurEffect,
    );
  }
}