<template>
  <div class="login-container">
    <div id="particles-js">
      <vue-particles
        color="#dedede"
        :particle-opacity="0.7"
        :particles-number="80"
        shape-type="circle"
        :particle-size="4"
        lines-color="#dedede"
        :lines-width="1"
        :line-linked="true"
        :line-opacity="0.4"
        :lines-distance="150"
        :move-speed="3"
        :hover-effect="true"
        hover-mode="grab"
        :click-effect="true"
        click-mode="push"
      />
    </div>

    <div class="login-weaper animated bounceInDown">
      <div class="login-left">
        <div class="login-time" v-text="currentTime" />
        <img :src="logo" alt="" class="img">
        <p class="title" v-text="title" />
      </div>
      <div class="login-border">
        <div class="login-main">
          <div class="login-title"> 用户登录 </div>
          <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" autocomplete="on" label-position="left">
            <el-form-item prop="username">
              <span class="svg-container">
                <i class="el-icon-user" />
              </span>
              <el-input
                ref="username"
                v-model="loginForm.username"
                placeholder="用户名"
                name="username"
                type="text"
                tabindex="1"
                autocomplete="on"
              />
            </el-form-item>

            <el-tooltip v-model="capsTooltip" content="Caps lock is On" placement="right" manual>
              <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="密码"
                  name="password"
                  tabindex="2"
                  autocomplete="on"
                  @keyup.native="checkCapslock"
                  @blur="capsTooltip = false"
                  @keyup.enter.native="handleLogin"
                />
                <span class="show-pwd" @click="showPwd">
                  <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
                </span>
              </el-form-item>
            </el-tooltip>
            <!-- <el-form-item prop="code" style="width: 66%;float: left;">
              <span class="svg-container">
                <svg-icon icon-class="validCode" />
              </span>
              <el-input
                ref="username"
                v-model="loginForm.code"
                placeholder="验证码"
                name="username"
                type="text"
                tabindex="3"
                maxlength="5"
                autocomplete="off"
                style=" width: 75%;"
                @keyup.enter.native="handleLogin"
              />
            </el-form-item> -->
            <!-- <div class="login-code" style="cursor:pointer; width: 30%;height: 48px;float: right;background-color: #f0f1f5;">
              <img style="height: 48px;width: 100%;border: 1px solid rgba(0,0,0, 0.1);border-radius:5px;" :src="codeUrl" @click="getCode">
            </div> -->
            <!-- <div prop="code" style="width: 100%;float: left;margin-bottom: 13px">
              <el-checkbox v-model="isLdap">LDAP登陆</el-checkbox>
            </div> -->
            <el-button :loading="loading" type="primary" style="width:100%;padding:12px 20px;margin-bottom:30px;" @click.native.prevent="handleLogin">
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
          </el-form>
        </div>
      </div>

    </div>
  </div>
</template>

<script>

import { getCodeImg } from '@/api/login'
import moment from 'moment'
import { mapGetters } from 'vuex'

export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      // validUsername
      if (!value) {
        callback(new Error('请输入用户名'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码必须大于六位'))
      } else {
        callback()
      }
    }
    return {
      codeUrl: '',
      cookiePassword: '',
      loginForm: {
        username: '',
        password: '',
        rememberMe: false,
        code: '',
        uuid: '',
        loginType: 1
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', validator: validateUsername }
        ],
        password: [
          { required: true, trigger: 'blur', validator: validatePassword }
        ]
      },
      passwordType: 'password',
      capsTooltip: false,
      loading: false,
      redirect: undefined,
      otherQuery: {},
      currentTime: null
    }
  },
  computed: {
    ...mapGetters(['title', 'logo', 'isLdap'])
  },
  watch: {
    $route: {
      handler: function(route) {
        const query = route.query
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true
    }
  },
  created() {
    this.getCode()
    // window.addEventListener('storage', this.afterQRScan)
    this.getCurrentTime()
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
  },
  destroyed() {
    clearInterval(this.timer)
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    getCurrentTime() {
      this.timer = setInterval(_ => {
        this.currentTime = moment().format('YYYY-MM-DD HH时mm分ss秒')
      }, 1000)
    },
    getCode() {
      getCodeImg().then(res => {
        if (res !== undefined) {
          this.codeUrl = res.data
          this.loginForm.uuid = res.id
        }
      })
    },
    checkCapslock({ shiftKey, key } = {}) {
      if (key && key.length === 1) {
        if (shiftKey && (key >= 'a' && key <= 'z') || !shiftKey && (key >= 'A' && key <= 'Z')) {
          this.capsTooltip = true
        } else {
          this.capsTooltip = false
        }
      }
      if (key === 'CapsLock' && this.capsTooltip === true) {
        this.capsTooltip = false
      }
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          if (this.isLdap) {
            this.loginForm.loginType = 1
          } else {
            this.loginForm.loginType = 0
          }

          this.loading = true
          this.$store.dispatch('user/login', this.loginForm)
            .then(() => {
              // this.$router.push({ path: this.redirect || '/', query: this.otherQuery })
              this.$router.push({ path: '/' })
              this.loading = false
            })
            .catch(() => {
              this.loading = false
              // this.getCode()
            })
        } else {
          return false
        }
      })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    }
  }
}
</script>

<style lang="scss" scoped>
/* 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;

.login-container{
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    width: 100%;
    height: 100%;
    margin: 0 auto;
    background: url("../../assets/login.png") no-repeat;
    background-color: #304175;
    position: relative;
    background-size: cover;
    height: 100vh;
    background-position: 50%;
}

#particles-js{
    z-index: 1;
    width: 100%;
    height: 100%;
    position: absolute;
}

.login-weaper{
  margin: 0 auto;
  width: 1000px;
  -webkit-box-shadow: -4px 5px 10px rgba(0,0,0,.4);
  box-shadow: -4px 5px 10px rgba(0,0,0,.4);
  z-index: 1000;
}

.login-left{
  border-top-left-radius: 5px;
  border-bottom-left-radius: 5px;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  background-color: rgba(64,158,255,0);
  color: #fff;
  float: left;
  width: 50%;
  position: relative;
    min-height: 500px;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
  .login-time{
    position: absolute;
    left: 25px;
    top: 25px;
    width: 100%;
    color: #fff;
    opacity: .9;
    font-size: 18px;
    overflow: hidden;
    font-weight: 500;
  }
}

.login-left .img{
  width: 120px;
  height: 120px;
  border-radius: 3px;
}

.login-left .title {
  text-align: center;
  color: #fff;
  letter-spacing: 2px;
  font-size: 30px;
  font-weight: 600;
}

.login-border{
  position: relative;
    min-height: 500px;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    border-left: none;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    color: #fff;
    background-color: hsla(0,0%,100%,.9);
    width: 50%;
    float: left;
}

.login-main{
    margin: 0 auto;
    width: 65%;
}

.login-title{
  color: #333;
    margin-bottom: 40px;
    font-weight: 500;
    font-size: 22px;
    text-align: center;
    letter-spacing: 4px;
}

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

/* reset element-ui css */
.login-container {
  /deep/ .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: #333;
      height: 47px;
      caret-color: #333;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(0,0,0, 0.1);
    background: rgba(255, 255, 255, 0.8);
    border-radius: 5px;
    color: #454545;
  }
}
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {

  .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;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}
</style>
