/**
 * 国际化工具类
 * 支持中文和英文切换
 */

// 语言包
const messages = {
  zh: {
    // 通用
    common: {
      confirm: '确认',
      cancel: '取消',
      save: '保存',
      delete: '删除',
      edit: '编辑',
      add: '添加',
      back: '返回',
      refresh: '刷新',
      loading: '加载中...',
      success: '成功',
      error: '错误',
      warning: '警告',
      info: '信息',
      settings: '设置',
      status: '状态',
      online: '在线',
      offline: '离线',
      connected: '已连接',
      disconnected: '未连接'
    },
    
    // 主页
    home: {
      title: '智能家居',
      welcome: '欢迎使用萤火虫智能家居系统',
      deviceCount: '设备数量',
      roomCount: '房间数量',
      sceneCount: '场景数量'
    },
    
    // 设备管理
    device: {
      title: '设备管理',
      list: '设备列表',
      add: '添加设备',
      detail: '设备详情',
      name: '设备名称',
      type: '设备类型',
      room: '所在房间',
      status: '设备状态',
      temperature: '温度',
      humidity: '湿度',
      battery: '电池电量'
    },
    
    // 厨房监控
    kitchen: {
      title: '厨房监控',
      monitor: '实时监控',
      history: '报警历史',
      settings: '高级选项',
      temperature: '温度',
      fire: '火灾检测',
      person: '人员检测',
      alarm: '报警',
      normal: '正常',
      warning: '警告',
      danger: '危险'
    },
    
    // 设置页面
    settings: {
      title: '设置',
      deviceConfig: '设备配置',
      network: '网络设置',
      language: '语言设置',
      about: '关于',
      version: '版本信息',
      
      // 设备配置
      alarmThreshold: '报警阈值',
      timing: '时间设置',
      frequency: '频率设置',
      sound: '声音设置',
      light: '灯光设置',
      
      // 时间设置
      timingTitle: '时间设置',
      timingDesc: 'StillSense等待多长时间后进行检查？',
      timingShorter: '较短',
      timingDefault: '默认',
      timingLonger: '较长',
      timingNote: '这影响StillSense的耐心程度——而不是它如何判断情况。',
      
      // 频率设置
      frequencyTitle: '频率设置',
      frequencyDesc: 'StillSense应该多久重复一次检查？',
      frequencyOnce: '一次',
      frequencyFewMinutes: '每隔几分钟',
      frequencyUntilAck: '直到确认',
      frequencyNote: 'StillSense不会过于频繁地重复检查。',
      
      // 声音设置
      soundTitle: '声音设置',
      soundSoft: '轻柔',
      soundNormal: '正常',
      soundClear: '清晰',
      soundNote: '声音表示紧急程度，而不是危险程度。',
      
      // 灯光设置
      lightTitle: '灯光设置',
      lightDirectional: '方向LED',
      lightIntensity: '灯光强度',
      lightOn: '开启',
      lightOff: '关闭',
      lightLow: '低',
      lightMedium: '中',
      lightHigh: '高',
      lightNote: '灯光帮助您快速看到需要注意的地方。'
    }
  },
  
  en: {
    // Common
    common: {
      confirm: 'Confirm',
      cancel: 'Cancel',
      save: 'Save',
      delete: 'Delete',
      edit: 'Edit',
      add: 'Add',
      back: 'Back',
      refresh: 'Refresh',
      loading: 'Loading...',
      success: 'Success',
      error: 'Error',
      warning: 'Warning',
      info: 'Info',
      settings: 'Settings',
      status: 'Status',
      online: 'Online',
      offline: 'Offline',
      connected: 'Connected',
      disconnected: 'Disconnected'
    },
    
    // Home
    home: {
      title: 'Smart Home',
      welcome: 'Welcome to Firefly Smart Home System',
      deviceCount: 'Device Count',
      roomCount: 'Room Count',
      sceneCount: 'Scene Count'
    },
    
    // Device Management
    device: {
      title: 'Device Management',
      list: 'Device List',
      add: 'Add Device',
      detail: 'Device Details',
      name: 'Device Name',
      type: 'Device Type',
      room: 'Room',
      status: 'Device Status',
      temperature: 'Temperature',
      humidity: 'Humidity',
      battery: 'Battery Level'
    },
    
    // Kitchen Monitor
    kitchen: {
      title: 'Kitchen Monitor',
      monitor: 'Real-time Monitor',
      history: 'Alarm History',
      settings: 'Advanced Options',
      temperature: 'Temperature',
      fire: 'Fire Detection',
      person: 'Person Detection',
      alarm: 'Alarm',
      normal: 'Normal',
      warning: 'Warning',
      danger: 'Danger'
    },
    
    // Settings
    settings: {
      title: 'Settings',
      deviceConfig: 'Device Configuration',
      network: 'Network Settings',
      language: 'Language Settings',
      about: 'About',
      version: 'Version Info',
      
      // Device Configuration
      alarmThreshold: 'Alarm Threshold',
      timing: 'Timing Settings',
      frequency: 'Frequency Settings',
      sound: 'Sound Settings',
      light: 'Light Settings',
      
      // Timing Settings
      timingTitle: 'Timing',
      timingDesc: 'How long should StillSense wait before checking in?',
      timingShorter: 'Shorter',
      timingDefault: 'Default',
      timingLonger: 'Longer',
      timingNote: 'This affects how patient StillSense is — not how it judges a situation.',
      
      // Frequency Settings
      frequencyTitle: 'Frequency',
      frequencyDesc: 'How often should StillSense repeat a check-in?',
      frequencyOnce: 'Once',
      frequencyFewMinutes: 'Every few minutes',
      frequencyUntilAck: 'Until acknowledged',
      frequencyNote: 'StillSense won\'t repeat check-ins too often.',
      
      // Sound Settings
      soundTitle: 'Sound',
      soundSoft: 'Soft',
      soundNormal: 'Normal',
      soundClear: 'Clear',
      soundNote: 'Sound indicates urgency, not danger.',
      
      // Light Settings
      lightTitle: 'Light',
      lightDirectional: 'Directional LED',
      lightIntensity: 'Light intensity',
      lightOn: 'On',
      lightOff: 'Off',
      lightLow: 'Low',
      lightMedium: 'Medium',
      lightHigh: 'High',
      lightNote: 'Lights help you quickly see where attention is needed.'
    }
  }
}

// 当前语言
let currentLanguage = 'zh'

// 国际化工具类
class I18n {
  constructor() {
    // 从本地存储读取语言设置
    this.loadLanguage()
  }
  
  // 加载语言设置
  loadLanguage() {
    try {
      const savedLang = uni.getStorageSync('app_language')
      if (savedLang && (savedLang === 'zh' || savedLang === 'en')) {
        currentLanguage = savedLang
      }
    } catch (e) {
      console.warn('Failed to load language setting:', e)
    }
  }
  
  // 保存语言设置
  saveLanguage(lang) {
    try {
      uni.setStorageSync('app_language', lang)
      currentLanguage = lang
    } catch (e) {
      console.error('Failed to save language setting:', e)
    }
  }
  
  // 获取当前语言
  getCurrentLanguage() {
    return currentLanguage
  }
  
  // 设置语言
  setLanguage(lang) {
    if (lang === 'zh' || lang === 'en') {
      this.saveLanguage(lang)
      return true
    }
    return false
  }
  
  // 获取翻译文本
  t(key) {
    const keys = key.split('.')
    let value = messages[currentLanguage]
    
    for (const k of keys) {
      if (value && typeof value === 'object' && k in value) {
        value = value[k]
      } else {
        // 如果当前语言没有找到，尝试中文
        if (currentLanguage !== 'zh') {
          let fallback = messages.zh
          for (const fk of keys) {
            if (fallback && typeof fallback === 'object' && fk in fallback) {
              fallback = fallback[fk]
            } else {
              fallback = key
              break
            }
          }
          return fallback
        }
        return key
      }
    }
    
    return value || key
  }
  
  // 获取所有支持的语言
  getSupportedLanguages() {
    return [
      { code: 'zh', name: '中文', nativeName: '中文' },
      { code: 'en', name: 'English', nativeName: 'English' }
    ]
  }
}

// 创建全局实例
const i18n = new I18n()

// 导出
export default i18n
export { I18n }