<template>
  <div class="main_div" :style="'background-image:url('+ Background +');'">
    <BindLicense ref="BindLicense"/>
    <el-row type="flex" style="width: 100%;height: 100%">



      <!--  底部  -->
      <!--  <el-col :span="12"  ><div class="main_left"  ></div></el-col> -->
      <el-col :span="24"><div class="login">


        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" label-position="left" label-width="0px" class="login-form">
          <div style="margin-top: 20px;margin-right: auto;margin-left: auto;width: 100px;height: 100px">
            <el-avatar src="https://cube.elemecdn.com/0/88/03b0d39583f48206768a7534e55bcpng.png" style="height: 100px;width: 100px" fit="fill"></el-avatar>
          </div>
          <h2 class="title" @click="bingLicense">
            欢迎来到 YouChain Plus! 👋
          </h2>
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
              <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" type="password" auto-complete="off" placeholder="密码" @keyup.enter.native="handleLogin">
              <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
            </el-input>
          </el-form-item>
          <el-form-item prop="code">
            <el-input v-model="loginForm.code" auto-complete="off" placeholder="验证码" style="width: 63%" @keyup.enter.native="handleLogin">
              <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
            </el-input>
            <div class="login-code">
              <img :src="codeUrl" @click="getCode">
            </div>
          </el-form-item>
          <el-checkbox v-model="loginForm.rememberMe" style="margin:0 0 25px 0;">
            记住我
          </el-checkbox>
          <el-dropdown style="margin-left: 200px;color: #00a0e9" :trigger="hover"  @command="handleCommand">
                <span class="el-dropdown-link">
                语言切换<i class="el-icon-arrow-down el-icon--right"></i>
                </span>
            <el-dropdown-menu slot="dropdown">
              <el-dropdown-item command="zh">中文</el-dropdown-item>
              <el-dropdown-item command="en">英文</el-dropdown-item>
            </el-dropdown-menu>
          </el-dropdown>

          <el-form-item style="width:100%;">
            <el-button :loading="loading" size="medium" type="primary" style="width:100%;" @click.native.prevent="handleLogin">
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
          </el-form-item>
          <h5 class="zhuce" @click="bingLicense">
            如您还没有账号？<span style="color: #00a0e9;margin-left: 5px" href="">请联系管理员</span>
          </h5>
        </el-form>
      </div></el-col>

    </el-row>
    <!--  底部  -->
    <div v-if="$store.state.settings.showFooter" id="el-login-footer">
      <span v-html="$store.state.settings.footerTxt" />
      <span v-if="$store.state.settings.caseNumber"> ⋅ </span>
      <a href="https://beian.miit.gov.cn/#/Integrated/index" target="_blank">{{ $store.state.settings.caseNumber }}</a>
    </div>
  </div>
</template>

<script>
import { encrypt } from '@/utils/rsaEncrypt'
import Config from '@/settings'
import { getCodeImg, getDeviceInfo } from '@/api/login'
import Cookies from 'js-cookie'
import qs from 'qs'
import Background from '@/assets/images/background3.png'
import BindLicense from '@/views/licenseBind.vue'
export default {
  name: 'Login',
  components: { BindLicense },
  data() {
    return {
      click_count: 0,
      Background: Background,
      codeUrl: '',
      cookiePass: '',
      loginForm: {
        username: 'admin',
        password: '123456',
        rememberMe: false,
        code: '',
        uuid: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', message: '用户名不能为空' }],
        password: [{ required: true, trigger: 'blur', message: '密码不能为空' }],
        code: [{ required: true, trigger: 'change', message: '验证码不能为空' }]
      },
      loading: false,
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        const data = route.query
        if (data && data.redirect) {
          this.redirect = data.redirect
          delete data.redirect
          if (JSON.stringify(data) !== '{}') {
            this.redirect = this.redirect + '&' + qs.stringify(data, { indices: false })
          }
        }
      },
      immediate: true
    }
  },
  created() {
    // 获取验证码
    this.getCode()
    // 获取用户名密码等Cookie
    this.getCookie()
    // token 过期提示
    this.point()

    this.getDevice()
  },
  methods: {
    handleCommand(command) {
      if (command === 'en') {
        this.$message('click on item ' + command)
        this.$router.push('/login_en')
      }
    },
    getCode() {
      getCodeImg().then(res => {
        this.codeUrl = res.img
        this.loginForm.uuid = res.uuid
      })
    },
    getDevice() {
      getDeviceInfo().then(res => {
        this.$refs.BindLicense.form.deviceCode = res
      })
    },
    getCookie() {
      const username = Cookies.get('username')
      let password = Cookies.get('password')
      const rememberMe = Cookies.get('rememberMe')
      // 保存cookie里面的加密后的密码
      this.cookiePass = password === undefined ? '' : password
      password = password === undefined ? this.loginForm.password : password
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password,
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
        code: ''
      }
    },
    handleLogin() {
      this.$i18n.locale = 'zh'
      this.$refs.loginForm.validate(valid => {
        const user = {
          username: this.loginForm.username,
          password: this.loginForm.password,
          rememberMe: this.loginForm.rememberMe,
          code: this.loginForm.code,
          uuid: this.loginForm.uuid
        }
        if (user.password !== this.cookiePass) {
          user.password = encrypt(user.password)
        }
        if (valid) {
          this.loading = true
          if (user.rememberMe) {
            Cookies.set('username', user.username, { expires: Config.passCookieExpires })
            Cookies.set('password', user.password, { expires: Config.passCookieExpires })
            Cookies.set('rememberMe', user.rememberMe, { expires: Config.passCookieExpires })
          } else {
            Cookies.remove('username')
            Cookies.remove('password')
            Cookies.remove('rememberMe')
          }
          this.$store.dispatch('Login', user).then(() => {
            this.loading = false
            this.$router.push({ path: this.redirect || '/' })
          }).catch(() => {
            this.loading = false
            this.getCode()
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    point() {
      const point = Cookies.get('point') !== undefined
      if (point) {
        this.$notify({
          title: '提示',
          message: '当前登录状态已过期，请重新登录！',
          type: 'warning',
          duration: 5000
        })
        Cookies.remove('point')
      }
    },
    bingLicense() {
      this.click_count = this.click_count + 1
      if (this.click_count % 3 === 0) {
        this.$refs.BindLicense.dialogVisible = true
      }
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
.main_div {
  background: #f7f7f7;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  width: 100%;
  background-size: cover;
}
.main_left {
  background: #fffffff5;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  width: 100%;
  background-size: cover;
}
.login {
  background: #00000045;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  width: 100%;
  background-size: cover;
}
.title {
  margin: 30px auto 30px 0px;
  text-align: left;
  color: #707070;
}
.zhuce {
  margin: 30px auto 30px 0px;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #fffffff0;
  width: 520px;
  height: 620px;
  padding: 40px 80px 40px 80px;
  .el-input {
    height: 40px;
    input {
      height: 40px;
    }
  }
  .input-icon{
    height: 39px;width: 14px;margin-left: 2px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  display: inline-block;
  height: 38px;
  float: right;
  img{
    cursor: pointer;
    vertical-align:middle
  }
}
</style>
