<template>
  <div class="login">
    <div class="centen-box">
      <div class="left-box">
        <img style="position: absolute;left: 15px;top: 20px;height: 30px;width: auto;" src="./../assets/images/login_logo.png"
        >
        <img style="border-radius: 20px 0 0 20px" src="./../assets/images/loginleft.png">
      </div>
      <div class="right-box">
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
            <h3 class="title">欢迎登录成事达管理平台</h3>
          <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" v-if="captchaEnabled">
            <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%;background-image: linear-gradient(to right,#0959FC,#2710FF)"
              @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>
        </el-form>
      </div>
    </div>
    <el-dialog
      title="请选择管理的站点"
      :visible.sync="centerDialogVisible"
      width="30%"
      center
    >
      <el-select v-model="chooseSiteCode" placeholder="请选择" style="width: 100%">
        <el-option
          v-for="item in options"
          :key="item.value"
          :label="item.label"
          :value="item.value"
        >
        </el-option>
      </el-select>
      <span slot="footer" class="dialog-footer">
    <el-button @click="centerDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="chooseSiteCodeFun">确 定</el-button>
  </span>
    </el-dialog>
    <!--  底部  -->
    <!--    <div class="el-login-footer">-->
    <!--      <span>Copyright © 2018-2023 ruoyi.vip All Rights Reserved.</span>-->
    <!--    </div>-->
  </div>
</template>

<script>
import { getCodeImg } from '@/api/login'
import { setTenantId, setTenantName } from '@/utils/auth'
import Cookies from 'js-cookie'
import { encrypt, decrypt } from '@/utils/jsencrypt'
import { listAllSite } from '@/api/base/site'

export default {
  name: 'Login',
  data() {
    return {
      options: [],
      //默认主站点
      chooseSiteCode: 'main',
      centerDialogVisible: false,
      codeUrl: '',
      loginForm: {
        username: '',
        password: '',
        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
      captchaEnabled: 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()
  },

  methods: {
    chooseSiteCodeFun() {
      if (this.chooseSiteCode) {
        this.centerDialogVisible = false
        let chooseSiteObj = this.options.filter(item => item.value == this.chooseSiteCode)[0]
        setTenantId(this.chooseSiteCode)
        setTenantName(chooseSiteObj.label)
        this.$router.push({ path: this.redirect || '/' }).catch(() => {
        })
      } else {
        this.$modal.msgWarning('请选择管理的站点')
      }
    },
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
        if (this.captchaEnabled) {
          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.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          if (this.loginForm.rememberMe) {
            Cookies.set('username', this.loginForm.username, { expires: 30 })
            Cookies.set('password', encrypt(this.loginForm.password), { expires: 30 })
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 })
          } else {
            Cookies.remove('username')
            Cookies.remove('password')
            Cookies.remove('rememberMe')
          }
          this.$store.dispatch('Login', this.loginForm).then(() => {
            listAllSite().then(response => {
              if (response.data && response.data.length > 0) {
                response.data.map((item) => {
                  this.options.push({
                    value: item.id,
                    label: item.siteName
                  })
                })
                if (this.options.length > 1) {
                  //需要用户自行选择管理的站点
                  this.centerDialogVisible = true
                } else {
                  //默认选中唯一站点
                  this.chooseSiteCode = this.options[0].value
                  setTenantId(this.chooseSiteCode)
                  setTenantName(this.options[0].label)
                  this.$router.push({ path: this.redirect || '/' }).catch(() => {
                  })
                }
              } else {
                this.$modal.msgWarning('暂无可管理站点，请联系服务提供商')
                setTimeout(() => {
                  this.$store.dispatch('LogOut').then(() => {
                    location.href = '/index'
                  })
                }, 1000)
              }
            })
          }).catch(() => {
            this.loading = false
            if (this.captchaEnabled) {
              this.getCode()
            }
          })
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  //background-image: url("../assets/images/login-background.jpg");
  background-image: url("../assets/images/x.png");
  background-size: cover;
}

.title {
  position: absolute;
  top: 50px;
  width: 100%;
  margin: 0 auto 60px auto;
  text-align: left;
  border-left: 5px solid #375BE4;
  padding-left: 10px;
  font-weight: bold;
  color: #353736;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

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

.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;
}

.centen-box {
  height: 600px;
  background: white;
  border-radius: 20px;
  box-shadow: 0px 7px 27px 0px rgba(133, 169, 231, 0.51);
  width: 70%;
  top: 50%;
  position: fixed;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.left-box {
  position: relative;
  width: 60%;
  height: 100%;

  img {
    width: 100%;
    height: 100%;
  }
}

.right-box {
  width: 40%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
</style>
