import XEUtils from 'xe-utils'
import MaliStorage from '../storage'

import zhCN from './lang/zh_CN'
import enUS from './lang/en_US'

const compMessage = {
  zh_CN: zhCN,
  en_US: enUS
}

const sysLang = uni.getSystemInfoSync().language
let currLanguage = MaliStorage.getItem('MALI_LANGUAGE') || (/en/i.test(sysLang) ? 'en_US' : 'zh_CN')

const localeMessage = {}

const MaliI18n = {
  getLanguage () {
    return currLanguage
  },
  setLanguage (language) {
    if (localeMessage[language]) {
      currLanguage = language
      MaliStorage.setItem('MALI_LANGUAGE', language)
    } else {
      console.error(`国际化 ${language} 不存在`)
    }
  },
  setLocaleMessage (language, message) {
    localeMessage[language] = Object.assign({}, compMessage[language], message)
  },
  hasKey (key) {
    if (key && key.indexOf && key.indexOf('.') > -1) {
      return XEUtils.has(localeMessage[currLanguage], key)
    }
    return false
  },
  t (key, args) {
    if (key && key.indexOf && key.indexOf('.') > -1) {
      const str = XEUtils.toFormatString(XEUtils.get(localeMessage[currLanguage], key), args)
      return str || XEUtils.isNumber(str) ? str : key
    }
    return key
  }
}

// 组件默认语言
MaliI18n.setLocaleMessage(currLanguage, compMessage[currLanguage])

export default MaliI18n