<template>
  <div class="login-wrapper">
    <img class="logo" :src="logo"/>
    <el-form
        ref="login"
        :rules="rules"
        :model="form"
        label-width="0"
        style="width:100%;"
        @keydown.enter.native="submit"
    >
      <!-- Github登录方式 -->
      <el-form-item prop="userID">
        <el-select v-model="form.userID" class="user-selector">
          <el-option
              v-for="index in 30"
              :key="index"
              :label="`user${index-1}`"
              :value="`user${index-1}`"
          ></el-option>
        </el-select>
      </el-form-item>
      <!-- 线上版本登录方式 -->
      <!-- <el-form-item prop="userID">
        <el-input v-model="form.userID" placeholder="请输入用户名" type="text" clearable></el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="form.password"
          placeholder="请输入密码"
          type="password"
          show-password
          clearable
        ></el-input>
      </el-form-item>-->
    </el-form>
    <el-button
        type="primary"
        @click="submit"
        style="width:100%; margin-top: 6px;"
        :loading="loading"
    >登录
    </el-button>
  </div>
</template>

<script>
import {Form, FormItem, Option, Select} from 'element-ui'
import logo from '../../assets/image/logo.png'
import Helper from '../../utils/helper'

export default {
  name: 'Login',
  components: {
    ElForm: Form,
    ElFormItem: FormItem,
    ElSelect: Select,
    ElOption: Option,
  },
  data() {
    const checkUserID = (rule, value, callback) => {
      if (!/^[a-zA-Z][a-zA-Z0-9_]{3,23}$/.test(value)) {
        callback(new Error('不合法（字母开头+字母/数字，长度4-24)'))
      } else {
        callback()
      }
    }

    return {
      form: {
        userID: 'user0',
        password: ''
      },
      rules: {
        userID: [
          {required: true, message: '请输入 userID', trigger: 'blur'},
          {validator: checkUserID, trigger: 'blur'}
        ],
        password: [{required: true, message: '请输入密码', trigger: 'blur'}]
      },
      logo: logo,
      registerVisible: false,
      loading: false
    }
  },
  methods: {
    submit() {
      this.$refs['login'].validate(valid => {
        if (valid) {
          this.login()
        }
      })
    },
    login() {
      this.loading = true
      this.tim
          .login({
            userID: this.form.userID,
            userSig: Helper.getSignature(this.form.userID)
          })
          .then(() => {
            this.loading = false
            this.$store.commit('toggleIsLogin', true)
            this.$store.commit('startComputeCurrent')
            this.$store.commit('showMessage', {type: 'success', message: '登录成功'})
            this.$store.commit({
              type: 'GET_USER_INFO',
              userID: this.form.userID,
              userSig: Helper.getSignature(this.form.userID),
              sdkAppID: process.env.VUE_APP_API_KEY
            })
            this.$store.commit('showMessage', {
              type: 'success',
              message: '登录成功'
            })
          })
          .catch(error => {
            this.loading = false
            this.$store.commit('showMessage', {
              message: '登录失败：' + error.message,
              type: 'error'
            })
          })
    },
  }
}
</script>

<style lang="stylus" scoped>
.login-wrapper
  display flex
  align-items center
  flex-direction column
  width 450px
  background $white
  color $black
  border-radius 5px
  box-shadow: 0 11px 20px 0 rgba(0, 0, 0, 0.3)

  .row-div
    display flex
    justify-content center
    align-items center
    flex-direction row

  .logo
    width 110px
    height 110px

  .loginBox
    width 320px
    margin 0 0 20px 0

    .send-code
      width 112px

    .login-im-btn
      width 100%

  .loginFooter
    color: #8c8a8ac7
    text-align: center
    padding: 0 0 20px 0
    cursor: pointer

.login-wrapper {
  display: flex;
  align-items: center;
  flex-direction: column;
  width: 400px;
  padding: 20px 80px 50px;
  background: $white;
  color: $black;
  border-radius: 5px;
  box-shadow: 0 11px 20px 0 rgba(0, 0, 0, 0.3);

  .logo {
    width: 130px;
    height: 130px;
  }

  .register-button {
    width: 100%;
    margin: 6px 0 0 0;
  }

  .user-selector {
    width: 100%;
  }
}
</style>