import Vue from 'vue'
import { USER_INFO } from '../store/mutation-types'
import { Base64 } from 'js-base64'
import md5 from 'md5'

function fillZero(str) {
  let realNum
  if (str < 10) {
    realNum = '0' + str
  } else {
    realNum = str
  }
  return realNum
}

export function dealUrl(fileUrl) {
  const userInfo = Vue.ls.get(USER_INFO)
  // 获取当前时间
  const date = new Date()
  const year = date.getFullYear()
  const month = date.getMonth() + 1
  const day = date.getDate()
  const hour = date.getHours()
  const minute = date.getMinutes()
  const second = date.getSeconds()
  const time = `${year}${fillZero(month)}${fillZero(day)}${fillZero(hour)}${fillZero(minute)}${fillZero(second)}`
  // 水印内容
  const watermarkTxt = `${userInfo.username} ${userInfo.realname} ${time}`
  // 客户环境预览需要加的加密参数
  const watermarkSign = md5(watermarkTxt + 'cnhtc')
  // 路径增加时间戳
  const timestamp = new Date().getTime()
  fileUrl += `&time=${timestamp}&type=kkfile`
  return `${window._CONFIG.onlinePreviewDomainURL}?forceUpdatedCache=true&url=${encodeURIComponent(Base64.encode(fileUrl))}&watermarkTxt=${encodeURIComponent(watermarkTxt)}&watermarkSign=${watermarkSign}`
}

/**
 * kkFile预览文件并添加水印
 * @param fileUrl
 */
export const kkFilePreview = (fileUrl) => {
  window.open(dealUrl(fileUrl))
}