import Vue from 'vue'
import VueResource from 'vue-resource'
Vue.use(VueResource)

import themeArray from './themeArray'

// 封装一些全局元素。如全站通用功能函数和http请求等

export const global = {
  staticPath: process.env.NODE_ENV === 'development' ? '.' : './',
  /**
   * 切换主题函数
   */
  changeTheme: function(themeValue) {
    var that = this

    // console.log('切换主题颜色值：', themeValue, that.staticPath, JSON.stringify(themeArray))
    // 需要移到单独的文件存放
    var cssArray = themeArray
    removeCss()
    for (let i = 0, len = cssArray.length; i < len; i++) {
      var itemPath = that.staticPath + '/theme/' + themeValue + '/' + cssArray[i].toLowerCase() + '.css'
      console.log(itemPath)

      loadCss(itemPath)
    }

    localStorage.setItem('themeValue', themeValue)

    function loadCss(path) {
      var head = document.getElementsByTagName('head')[0]
      var link = document.createElement('link')
      link.href = path
      link.rel = 'stylesheet'
      link.type = 'text/css'
      head.appendChild(link)
    }
    function removeCss(href) {
      const links = document.getElementsByTagName('link')
      const head = document.getElementsByTagName('head')[0]
      const arr = []
      if (links && links.length > 0) {
        for (let i = 0, len = links.length; i < len; i++) {
          if (links[i]) {
            arr.push(links[i])
          }
        }
        for (let i = 0, len = arr.length; i < len; i++) {
          head.removeChild(arr[i])
        }
      }
    }
  }

}

// export default global