<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
      <h3 class="title">
        ***管理系统
      </h3>
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input v-model="loginForm.username" name="username" type="text" auto-complete="on" placeholder="username" />
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          v-model="loginForm.password"
          :type="pwdType"
          name="password"
          auto-complete="on"
          placeholder="password"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon icon-class="eye" />
        </span>
      </el-form-item>
      <el-form-item>
        <el-button :loading="loading" type="primary" style="width:100%;" @click.native.prevent="handleLogin">
          Sign in
        </el-button>
      </el-form-item>
      <div class="tips">
        <span style="margin-right:20px;">
          ***公司
        </span>
      </div>
    </el-form>
  </div>
</template>

<script>
import { Message } from 'element-ui'
export default {
  name: 'Login',
  data() {
    const checkValidCode = (rule, value, callback) => {
      // console.log('value=', value, 'this.validCode=', this.validCode)
      if (!value) {
        callback(new Error('请输入验证码'))
      } else if (value.toUpperCase() !== this.validCode.toUpperCase()) {
        // this.refreshCode = Math.random()
        callback(new Error('验证码不正确'))
      } else {
        callback()
      }
    }
    return {
      loginForm: {
        username: '',
        password: '',
        validCode: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', message: '请输入用户名' }],
        password: [{ required: true, trigger: 'blur', message: '请输入密码' }],
        validCode: [{ required: true, trigger: 'blur', validator: checkValidCode }]
      },
      loading: false,
      pwdType: 'password',
      redirect: undefined,
      validCodeVisible: false,
      // 刷新验证码
      refreshCode: 0,
      validCode: ''
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
        // console.log('login--redirect', this.redirect)
        const errorCode = route.query && route.query.errorCode
        if (errorCode === 'sso.1021') {
          // 表示超过失败登录次数，需要显示验证码
          this.validCodeVisible = true
          this.loginForm.validCode = ''
          this.refreshCode = Math.random()
        }
      },
      immediate: true
    }
  },
  created: function() {
    // 子系统是嵌套在iframe中的，所以需要把整个页面都显示为登录页面，而不要只在iframe中显示登录页面
    window.top.location.href = process.env.BASE_URL + '#/login'
  },
  methods: {
    showPwd() {
      if (this.pwdType === 'password') {
        this.pwdType = ''
      } else {
        this.pwdType = 'password'
      }
    },
    login() {
      // return new Promise((resolve, reject) => {
      this.$store.dispatch('login', this.loginForm).then(() => {
        this.loading = false
        this.$router.push({ path: this.redirect || '/' })
        // resolve()
      }).catch((error) => {
        this.loading = false
        if (error.response.status === 401) {
          // console.log('error.response login==', error.response)
          const errorData = error.response.data

          if (errorData.code === 'sso.1021') {
            // 表示超过失败登录次数，需要显示验证码
            this.validCodeVisible = true
            Message({
              message: errorData.message,
              showClose: true,
              type: 'error',
              duration: 5 * 1000
            })
          } else {
            // 表示超过失败登录次数，需要锁定用户，显示提示信息
            this.validCodeVisible = false
            Message({
              message: errorData.message,
              showClose: true,
              type: 'error',
              duration: 5 * 1000
            })
          }
        }
        // reject(error)
      })
      // })
    },
    handleLogin() {
      if (!this.validCodeVisible) {
        this.validCode = 'aaaa'
      }
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('isPasswordExpired', this.loginForm).then((message) => {
            if (typeof (message) !== 'undefined' && message !== null && message !== false) {
              // 表示密码已过期，需要重置密码
              this.$router.push({ path: '/update-password?errorMessage=' + message + '&username=' + this.loginForm.username + '&redirect=' + (this.redirect || '/') })
            } else {
              this.login()
            }
          }).catch((error) => {
            this.loading = false
            console.log('error isPasswordExpired', error)
          })
        } else {
          // console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</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;
    max-width: 100%;
    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;
  }
  .title {
    font-size: 26px;
    font-weight: 400;
    color: $light_gray;
    margin: 0px auto 40px auto;
    text-align: center;
    font-weight: bold;
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
