chenhaodong / mew-iview

  import defaultLang from './lang/zh-CN';
  import Vue from 'vue';
  import deepmerge from 'deepmerge';
  import Format from './format';
  
  const format = Format(Vue);
  let lang = defaultLang;
  let merged = false;
  let i18nHandler = function() {
      const vuei18n = Object.getPrototypeOf(this || Vue).$t;

      if (typeof vuei18n === 'function' && !!Vue.locale) {

          if (!merged) {
              merged = true;
              Vue.locale(
                  Vue.config.lang,
                  deepmerge(lang, Vue.locale(Vue.config.lang) || {}, { clone: true })
              );
          }
          return vuei18n.apply(this, arguments);
      }
  };
  
  export const t = function(path, options) {
      let value = i18nHandler.apply(this, arguments);
      if (value !== null && value !== undefined) return value;
  
      const array = path.split('.');
      let current = lang;
  
      for (let i = 0, j = array.length; i < j; i++) {
          const property = array[i];
          value = current[property];
          if (i === j - 1) return format(value, options);
          if (!value) return '';
          current = value;
      }
      return '';
  };
  
  export const use = function(l) {
      lang = l || lang;
  };
  
  export const i18n = function(fn) {
      i18nHandler = fn || i18nHandler;
  };
  

  // using with vue-i18n in CDN
  /*eslint-disable */

  export const setLang = function (name, lang) {

      if (typeof window.iview !== 'undefined') {
          if (!('langs' in iview)) {
              iview.langs = {};
          }

          iview.langs[name] = lang;

      }
  };
  /*eslint-enable */
  
  export default { use, t, i18n, setLang };