<template>
  <div class="login-container">
    <el-form class="login-form" autoComplete="on" :model="loginForm" :rules="loginRules" ref="loginForm" label-position="left">
      <div class="title-container">
        <h3 class="title">智慧悦所后台管理系统</h3>
        <!--lang-select class="set-language"></lang-select-->
      </div>
      <el-form-item prop="username">
        <span class="svg-container svg-container_login">
          <svg-icon icon-class="user" />
        </span>
        <el-input name="username" type="text" v-model="loginForm.username" autoComplete="on" placeholder="请输入用户名" />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input name="password" :type="passwordType" @keyup.enter.native="handleLogin" v-model="loginForm.pwd" autoComplete="on" placeholder="请输入密码" />
        <span class="show-pwd" @click="showPwd">
          <svg-icon icon-class="eye" />
        </span>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="color:#a0a0a0;margin-bottom:20px;">记住密码</el-checkbox>

      <el-button type="primary" style="width:100%;margin-bottom:30px;" :loading="loading" @click.native.prevent="handleLogin">登&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;录</el-button>
    </el-form>
    <el-dialog :title="$t('login.thirdparty')" :visible.sync="showDialog" append-to-body>
      {{$t('login.thirdpartyTips')}}
      <br/>
      <br/>
      <br/>
      <social-sign />
    </el-dialog>
  </div>
</template>

<script>
import { logIN } from '@/api/article'
// import { isvalidUsername } from '@/utils/validate'
import LangSelect from '@/components/LangSelect'
import SocialSign from './socialsignin'
import crypto from 'crypto'
export default {
  components: { LangSelect, SocialSign },
  name: 'login',
  data() {
    const validateUsername = (rule, value, callback) => {
      callback()
    }
    const validatePassword = (rule, value, callback) => {
      callback()
    }
    return {
      loginForm: {
        username: null,
        password: null,
        rememberMe: false,
        token: null,
        pwd: null,
        role: null
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', validator: validateUsername }],
        password: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      passwordType: 'password',
      loading: false,
      showDialog: false
    }
  },
  created() {
    this.getCookie()
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
    },
    handleLogin() {
      if (this.loginForm.pwd === null || this.loginForm.username === null) {
        this.$message({ message: '请输入用户名和密码！', type: 'error' })
        return false
      }
      this.loading = true
      var md5 = crypto.createHash('md5')
      md5.update(this.loginForm.pwd)
      this.loginForm.password = md5.digest('hex')
      logIN(this.loginForm).then(response => {
        if (response.data.staus === undefined) {
          this.loading = false
          this.$message.error(response.data)
        } else {
          if (response.data.staus === '1') {
            window.sessionStorage.removeItem('source')
            window.localStorage.setItem('token', response.data.token)
            if (this.loginForm.rememberMe === true) {
              this.setCookie(this.loginForm.username, this.loginForm.pwd, 365, response)
            }
            this.loginForm.token = response.data.token
            this.loginForm.role = response.data.role
            // 状态管理到store/user.js
            this.$store.dispatch('LoginByUsername', this.loginForm).then(() => {
              // 转发前的过滤器在哪里呢？这里有一个转发前验证
              this.loading = false
              this.$router.push({ path: '/' })
            }).catch(() => {
              this.loading = false
            })
          } else {
            this.loading = false
            this.$message.error(response.data.msg)
          }
        }
      })
    },
    setCookie(c_name, c_pwd, exdays) {
      var exdate = new Date()
      exdate.setTime(exdate.getTime() + 24 * 60 * 60 * 1000 * exdays)
      window.document.cookie = 'userName' + '=' + c_name + ';path=/;expires=' + exdate.toGMTString()
      window.document.cookie = 'userPwd' + '=' + c_pwd + ';path=/;expires=' + exdate.toGMTString()
    },
    getCookie() {
      if (document.cookie.length > 0) {
        var arr = document.cookie.split('; ')
        for (var i = 0; i < arr.length; i++) {
          var arr2 = arr[i].split('=')
          if (arr2[0] === 'userName') {
            this.loginForm.username = arr2[1]
          } else if (arr2[0] === 'userPwd') {
            this.loginForm.pwd = arr2[1]
          }
        }
      }
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
$bg:#2d3a4b;
$light_gray:#eee;

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      &:-webkit-autofill {
        -webkit-box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: #fff !important;
      }
    }
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style rel="stylesheet/scss" lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  position: fixed;
  height: 100%;
  width: 100%;
  background-color: $bg;
  .login-form {
    position: absolute;
    left: 0;
    right: 0;
    width: 520px;
    padding: 35px 35px 15px 35px;
    margin: 120px auto;
  }
  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;
    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
    &_login {
      font-size: 20px;
    }
  }
  .title-container {
    position: relative;
    .title {
      font-size: 26px;
      font-weight: 400;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
    .set-language {
      color: #fff;
      position: absolute;
      top: 5px;
      right: 0px;
    }
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
  .thirdparty-button {
    position: absolute;
    right: 35px;
    bottom: 28px;
  }
}
</style>
