<template>
  <div class="login-container">
    <el-row :gutter="10">
      <el-col
        :xs="{span: 20, offset: 2}"
        :sm="{span: 14, offset: 5}"
        :md="{span: 12, offset: 6}"
        :lg="{span: 8, offset: 8}"
        :xl="{span: 8, offset: 8}">
        <el-form
          ref="loginForm"
          :model="loginForm"
          :rules="loginRules"
          class="login-form"
          auto-complete="on"
          label-position="left">

          <div class="title-container">
            <h3 class="title">{{ $t('login.title') }}</h3>
            <lang-select class="set-language"/>
          </div>

          <el-form-item prop="username">
            <span class="svg-container svg-container_login">
              <svg-icon icon-class="user"/>
            </span>
            <el-input
              v-model="loginForm.username"
              :placeholder="$t('login.username')"
              name="username"
              type="text"
              auto-complete="on"/>
          </el-form-item>

          <el-form-item prop="password">
            <span class="svg-container">
              <svg-icon icon-class="password"/>
            </span>
            <el-input
              :type="passwordType"
              v-model="loginForm.password"
              :placeholder="$t('login.password')"
              name="password"
              auto-complete="on"/>
            <span class="show-pwd" @click="showPwd">
              <svg-icon icon-class="eye"/>
            </span>
          </el-form-item>

          <el-form-item prop="captchaCode">
            <el-row>
              <el-col :span="16">
                <span class="svg-container">
                  <svg-icon icon-class="chart"/>
                </span>
                <el-input
                  v-model="loginForm.captchaCode"
                  :placeholder="$t('login.captchaCode')"
                  type="text"
                  name="captchaCode"
                  auto-complete="on"
                  @keyup.enter.native="handleLogin"/>
              </el-col>
              <el-col
                :span="8"
                class="captcha_img_box">
                <img
                  :src="captchaCode_img_url"
                  alt="captcha"
                  class="captcha_img"
                  @click="refreshCaptchaImg">
              </el-col>
            </el-row>
          </el-form-item>

          <el-button
            :loading="loading"
            type="primary"
            style="width:100%;margin-bottom:30px;"
            @click.native.prevent="handleLogin">{{ $t('login.logIn') }}
          </el-button>

          <el-row>
            <el-col
              :xs="{span: 24}"
              :sm="{span: 24}"
              :md="{span: 16}"
              :lg="{span: 14}"
              :xl="{span: 14}">
              <div class="tips">
                <span>{{ $t('login.username') }} : admin</span>
                <span>{{ $t('login.password') }} : {{ $t('login.any') }}</span>
              </div>
              <div class="tips">
                <span style="margin-right:18px;">{{ $t('login.username') }} : editor</span>
                <span>{{ $t('login.password') }} : {{ $t('login.any') }}</span>
              </div>
            </el-col>
            <el-col
              :xs="{span: 24}"
              :sm="{span: 24}"
              :md="{span: 8}"
              :lg="{span: 10}"
              :xl="{span: 10}">
              <el-button
                class="thirdparty-button"
                type="primary"
                style="width:100%;"
                @click="showDialog=true">{{ $t('login.thirdparty') }}
              </el-button>
            </el-col>
          </el-row>
        </el-form>
      </el-col>
    </el-row>
    <el-dialog :title="$t('login.thirdparty')" :visible.sync="showDialog" append-to-body>
      {{ $t('login.thirdpartyTips') }}
      <br>
      <br>
      <br>
      <social-sign/>
    </el-dialog>

  </div>
</template>

<script>
import { isvalidUsername } from '@/utils/validate'
import LangSelect from '@/components/LangSelect'
import SocialSign from './socialsignin'

export default {
  name: 'Login',
  components: { LangSelect, SocialSign },
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!isvalidUsername(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: '1111111'
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', validator: validateUsername }
        ],
        password: [
          { required: true, trigger: 'blur', validator: validatePassword }
        ]
      },
      passwordType: 'password',
      loading: false,
      showDialog: false,
      // captchaCode_img_url: process.env.BASE_API + '/adm/captcha'
      captchaCode_img_url: 'https://www.oschina.net/action/user/captcha'
    }
  },
  created() {
    // window.addEventListener('hashchange', this.afterQRScan)
  },
  destroyed() {
    // window.removeEventListener('hashchange', this.afterQRScan)
  },
  methods: {
    refreshCaptchaImg() {
      // this.captchaCode_img_url = process.env.BASE_API + '/adm/captcha' + '?t=' + Math.random()
      this.captchaCode_img_url = 'https://www.oschina.net/action/user/captcha' + '?t=' + Math.random()
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true
          this.$store.dispatch('LoginByUsername', this.loginForm).then(() => {
            this.loading = false
            this.$router.push({ path: '/' })
          }).catch(() => {
            this.loading = false
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    afterQRScan() {
      // const hash = window.location.hash.slice(1)
      // const hashObj = getQueryObject(hash)
      // const originUrl = window.location.origin
      // history.replaceState({}, '', originUrl)
      // const codeMap = {
      //   wechat: 'code',
      //   tencent: 'code'
      // }
      // const codeName = hashObj[codeMap[this.auth_type]]
      // if (!codeName) {
      //   alert('第三方登录失败')
      // } else {
      //   this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
      //     this.$router.push({ path: '/' })
      //   })
      // }
    }
  }
}
</script>

<style rel="stylesheet/scss" 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: #eee;
  $cursor: #fff;

  @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input {
      color: $cursor;
      &::first-line {
        color: $light_gray;
      }
    }
  }

  /* reset element-ui css */
  .login-container {
    .el-input {
      display: inline-block;
      height: 47px;
      width: 80%; // 这里85%将影响部分错位 设置为80%即可
      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 {
          -webkit-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 rel="stylesheet/scss" lang="scss" scoped>
  $bg: #2d3a4b;
  $dark_gray: #889aa4;
  $light_gray: #eee;

  .captcha_img {
    width: 100%;
    height: 49px;
    max-height: 49px;
    vertical-align: middle;
  }

  .login-container {
    position: fixed;
    height: 100%;
    width: 100%;
    background-color: $bg;
    .login-form {
      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;
        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;
    }
  }
</style>
