<template>
  <div class="login" :style="{backgroundImage: 'url('+backgroudImg+')'}">
    <StarBackground />
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="sub-title" v-if="systemTitle.subTitle">{{systemTitle.subTitle}}</h3>
      <h3 class="title">{{systemTitle.title}}</h3>

      <div class="login-container">
        <h4>请登录</h4>
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号"
                    class="m-b-15">
            <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" class="m-b-15">
            <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
          </el-input>
        </el-form-item>
        <el-form-item prop="code" v-if="captchaOnOff">
          <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" class="login-code-img" />
          </div>
        </el-form-item>
        <!--				<el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>-->
        <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>
          <div style="float: right;" v-if="register">
            <router-link class="link-type" :to="'/register'">立即注册</router-link>
          </div>
        </el-form-item>
      </div>
    </el-form>
  </div>
</template>

<script>
  import {
    getCodeImg,fontConfig,getSecretKey
  } from '@/api/login'
  import {
    encryptedData
  } from '@/api/encrypt'
  import Cookies from 'js-cookie'
  import {
    encrypt,
    decrypt
  } from '@/utils/jsencrypt'

  export default {
    name: 'Login',
    data() {
      return {

        backgroudImg:require('../../assets/images/login/login-ty.jpg'), //背景图片
        systemTitle:{
          title:'通榆县乡村振兴综合监管平台',  //标题
          subTitle:'数字交通'  ,//副标题
        },
        codeUrl: '',
        loginForm: {
          username: 'admin',
          password: 'admin123',
          rememberMe: false,
          code: '',
          uuid: ''
        },
        loginRules: {
          username: [{
            required: true,
            trigger: 'blur',
            message: '请输入您的账号'
          }],
          password: [{
            required: true,
            trigger: 'blur',
            message: '请输入您的密码'
          }],
          code: [{
            required: true,
            trigger: 'change',
            message: '请输入验证码'
          }]
        },
        loading: false,
        // 验证码开关
        captchaOnOff: true,
        // 注册开关
        register: false,
        redirect: undefined
      }
    },
    watch: {
      $route: {
        handler: function(route) {
          this.redirect = route.query && route.query.redirect
        },
        immediate: true
      }
    },
    created() {
      this.getCode()
      this.getCookie()
      this.fontConfig();
    },
    methods: {
      fontConfig(){
        fontConfig().then(res => {
          this.systemTitle.title = res.data.fontTitle;
          this.systemTitle.subTitle = res.data.subTitle;
          this.backgroudImg = res.data.picUrl;
        })
      },
      getCode() {
        getCodeImg().then(res => {
          this.captchaOnOff = res.captchaOnOff === undefined ? true : res.captchaOnOff
          if (this.captchaOnOff) {
            this.codeUrl = 'data:image/gif;base64,' + res.img
            this.loginForm.uuid = res.uuid
          }
        })
      },
      getCookie() {
        const username = Cookies.get('username')
        const password = Cookies.get('password')
        const rememberMe = Cookies.get('rememberMe')
        this.loginForm = {
          username: username === undefined ? this.loginForm.username : username,
          password: password === undefined ? this.loginForm.password : decrypt(password),
          rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
        }
      },
      handleLogin() {
        this.$refs.loginForm.validate(valid => {
          if (valid) {
            this.loading = true
            // if (this.loginForm.rememberMe) {
            //无论如何我都记-孙一石
            if (true) {
              Cookies.set('username', this.loginForm.username, {
                expires: 30
              })
              Cookies.set('password', encrypt(this.loginForm.password), {
                expires: 30
              })
              Cookies.set('rememberMe', this.loginForm.rememberMe, {
                expires: 30
              })
            } else {
              Cookies.remove('username')
              Cookies.remove('password')
              Cookies.remove('rememberMe')
            }
            //登录前先获取密码加密传输的公钥，对密码进行加密
            getSecretKey().then(res => {
              const encryptedPassword = encryptedData(res.data,this.loginForm.password);
              this.loginForm.password = encryptedPassword;
              this.$store.dispatch('Login', this.loginForm).then(() => {
                this.$router.push({
                  //path: this.redirect || '/'
                  path: '/'
                })
              }).catch(() => {
                this.loading = false
                if (this.captchaOnOff) {
                  this.getCode()
                }
              })
            })
          }
        })
      }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
  @import '@/assets/styles/base.scss';

  .login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background: url("../../assets/images/login/login.jpg") center;
    background-size: cover;
  }

  .m-b-15 {
    margin-bottom: 15px;
  }

  .title {
    margin: 0px auto 30px auto;
    text-align: center;
    color: #fff;
    font-family: $fontFk;
    font-size: 38px;

  }

  .login-form {
    border-radius: 6px;
    margin-left: 25%;
    display: flex;
    flex-direction: column;
    align-items: center;

    h3 {
      text-shadow: 0 0 15px rgba($color: #00f6ff, $alpha: .7);
    }

    .login-container {
      border-radius: 6px;
      background: rgba($color: #fff, $alpha: .7);
      width: 450px;
      padding: 30px;
      box-shadow: 0 0 20px rgba($color: #fff, $alpha: .5);

      h4 {
        border-bottom: #3e6bfb 1px solid;
        width: fit-content;
        display: inline-block;
        margin-top: 0;
        padding-bottom: 5px;
        margin-bottom: 20px;
      }
    }

    .el-input {
      height: 38px;

      input {
        height: 38px;
      }
    }

    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 2px;
      color: #3e69fb;
    }

    .el-button--primary {
      font-size: 20px;
      background: #3e69fb;
      padding: 15px
    }
  }

  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }

  .login-code {
    width: 33%;
    height: 38px;
    float: right;

    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }

  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }

  .login-code-img {
    height: 38px;
  }
</style>
