<template>
    <div class="login-container">

      <el-form
        ref="loginForm"
        :model="loginForm"
        :rules="loginRules"
        class="login-form"
        auto-complete="on"
        label-position="left"
      >

        <div class="title-container">

          <h3 class="title">鱼皮系统</h3>

        </div>
  
        <el-form-item prop="username">
          <span class="svg-container">
            <svg-icon icon-class="user" />
          </span>
          <el-input
            ref="username"
            v-model="loginForm.username"
            placeholder="Username"
            name="username"
            type="text"
            tabindex="1"
            auto-complete="on"
          />
        </el-form-item>
  
        <el-form-item prop="password">
          <span class="svg-container">
            <svg-icon icon-class="password" />
          </span>
          <el-input
            :key="passwordType"
            ref="password"
            v-model="loginForm.password"
            :type="passwordType"
            placeholder="Password"
            name="password"
            tabindex="2"
            auto-complete="on"
            @keyup.enter.native="handleLogin"
          />
          <span class="show-pwd" @click="showPwd">
            <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
          </span>
        </el-form-item>

        <!-- <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">reg</el-button> -->

        <el-button
          :loading="loading"
          type="primary"
          style="width:100%;margin-bottom:30px;"
          @click.native.prevent="handleLogin"
        >Login</el-button>

  
        <div class="tips">
          <span style="margin-right:20px;">username: admin</span>

          <span>password: any</span>

        </div>

      </el-form>
    </div>
  </template>
  
  <script>

  import { validUsername } from "@/utils/validate";

  
  export default {

    name: "Login",

    data() {
      const validateUsername = (rule, value, callback) => {
        if (!validUsername(value)) {

          callback(new Error("Please enter the correct user name"));

        } else {

          callback();

        }

      };

      const validatePassword = (rule, value, callback) => {
        if (value.length < 6) {

          callback(new Error("The password can not be less than 6 digits"));

        } else {

          callback();

        }

      };

      return {
        loginForm: {

          username: "admin",
          password: "111111"

        },
        loginRules: {

          username: [
            { required: true, trigger: "blur", validator: validateUsername }
          ],
          password: [
            { required: true, trigger: "blur", validator: validatePassword }
          ]

        },
        loading: false,

        passwordType: "password",

        redirect: undefined

      };

    },
    watch: {
      $route: {
        handler: function(route) {

          this.redirect = route.query && route.query.redirect;

        },
        immediate: true
      }
    },
    methods: {
      showPwd() {

        if (this.passwordType === "password") {
          this.passwordType = "";

        } else {

          this.passwordType = "password";

        }
        this.$nextTick(() => {

          this.$refs.password.focus();
        });

      },
      handleLogin() {
        this.$refs.loginForm.validate(valid => {
          if (valid) {

            this.loading = true;
            this.$store
              .dispatch("user/login", this.loginForm)
              .then(() => {
                this.$router.push({ path: this.redirect || "/" });
                this.loading = false;
                console.log('this.redirect', this.$router);
              })
              .catch(res => {
                console.log("res error------------>", res);
                this.loading = false;
              });

          } else {

            console.log("error submit!!");
            return false;

          }

        });

      }
    }

  };

  </script>
  
  <style lang="scss">
  /* 修复input 背景不协调 和光标变色 */
  /* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

  $bg: #283443;
  $light_gray: #fff;

  $cursor: #fff;
  
  @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input {
      color: $cursor;
    }
  }
  
  /* 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;
        caret-color: $cursor;
  
        &:-webkit-autofill {
          box-shadow: 0 0 0px 1000px $bg inset !important;
          -webkit-text-fill-color: $cursor !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 lang="scss" scoped>

  $bg: #2d3a4b;
  $dark_gray: #889aa4;
  $light_gray: #eee;

  
  .login-container {
    min-height: 100%;
    width: 100%;
    background-color: $bg;
    overflow: hidden;
  
    .login-form {
      position: relative;
      width: 520px;
      max-width: 100%;
      padding: 160px 35px 0;
      margin: 0 auto;
      overflow: hidden;
    }
  
    .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-container {
      position: relative;
  
      .title {
        font-size: 26px;
        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>