<!--登陆主页,默认-->
<template>
  <div
    :style="{ backgroundImage: 'url(' + bgUrl + ')' }"
    class="login-container"
  >
    <div class="login-div">
      <div
        id="left-div"
        :style="{ backgroundImage: 'url(' + leftUrl + ')' }"
        class="left-div"
      >
        <div class="logo-div">
          <img >
        </div>
        <div class="title-div">
          <h4 class="title">{{ title }}</h4>
        </div>
        <div class="title-div">
          <!--          <h4 class="title2">——海洋石油工程（青岛）有限公司</h4>-->
        </div>
      </div>
      <div ref="element" class="right-div">
        <el-form
          id="login-form"
          ref="loginForm"
          :model="loginForm"
          :rules="loginRules"
          class="login-form"
          auto-complete="on"
          label-position="right"
        >
          <h5 class="login-title">登录</h5>
          <el-form-item prop="username">
            <span class="svg-container">
              <svg-icon icon-class="user" />
            </span>
            <el-input
              v-model.trim="loginForm.username"
              name="username"
              type="text"
              auto-complete="on"
              placeholder="用户名"
            />
          </el-form-item>
          <el-form-item prop="password">
            <span class="svg-container">
              <svg-icon icon-class="password" />
            </span>
            <el-input
              :type="pwdType"
              v-model.trim="loginForm.password"
              name="password"
              auto-complete="on"
              placeholder="密码"
              @keyup.enter.native="handleLogin"
            />
            <span class="show-pwd" @click="showPwd">
              <svg-icon
                :icon-class="pwdType === 'password' ? 'eye' : 'eye-open'"
              />
            </span>
          </el-form-item>

          <kaptcha-comp
            v-if="showKaptcha"
            ref="kaptcha"
            @passKaptcha="passKaptcha"
          />

          <el-form-item>
            <el-button
              :loading="loading"
              type="primary"
              style="width: 100%"
              @click.native.prevent="handleLogin"
            >
              登录
            </el-button>
          </el-form-item>
        </el-form>
      </div>
      <div class="clear-div" />
    </div>
  </div>
</template>

<script>
import { RSAencrypt } from '@/utils/security'
import kaptchaComp from '@/views/login/kaptcha/kaptcha'
import { getProject } from '@/utils/baseConfig'

export default {
  name: 'Login',
  components: {
    // 注册组件
    kaptchaComp: kaptchaComp
  },
  data() {
    const validateUsername = (rule, value, callback) => {
      if (value.length < 1) {
        callback(new Error('用户名不能为空'))
      } else {
        callback()
      }
    }
    const validatePass = (rule, value, callback) => {
      if (value.length < 1) {
        callback(new Error('密码不能为空'))
      } else {
        callback()
      }
    }
    const validateKaptcha = (rule, value, callback) => {
      console.log('验证验证码')
      if (this.showKaptcha) {
        // 如果开启了验证码判断，否则不判断
        if (value.length < 1) {
          callback(new Error('验证码不能为空'))
        } else {
          callback()
        }
      } else {
        callback()
      }
    }
    return {
      title: getProject().title,
      loginForm: {
        username: '',
        password: '',
        kaptcha: ''
      }, // 登录表单
      loginRules: {
        username: [
          {
            required: true,
            trigger: ['blur', 'change'],
            validator: validateUsername
          }
        ],
        password: [
          {
            required: true,
            trigger: ['blur', 'change'],
            validator: validatePass
          }
        ],
        kaptcha: [
          {
            required: false,
            trigger: ['blur', 'change'],
            validator: validateKaptcha
          }
        ]
      }, // 登录规则
      loading: false, // 加载动画
      pwdType: 'password', // 密码状态password和空
      redirect: '/', // 重定向路径
      showKaptcha: false, // 是否显示验证码
      // bgUrl: require('../../assets/login_images/theme0/bg.png'), // 背景图片
      bgUrl: '',
      leftUrl: require('../../assets/login_images/theme0/left2.jpg') // 左边图片
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  beforeCreate: function() {
    // 从后台获取系统配置，根据配置判断是否加载验证码控件
    this.loading = true
    this.$store
      .dispatch('GetConfig')
      .then(() => {
        this.showKaptcha = this.$store.getters.kaptcha
        this.loading = false
        this.$message.success('连接服务器成功')
        if (this.showKaptcha) {
          var rightHeight = window.getComputedStyle(this.$refs.element).height
          rightHeight = parseFloat(
            rightHeight.substring(0, rightHeight.length - 2)
          )
          document.getElementById('left-div').style.height =
            rightHeight + 64.897 + 'px'
        }
      })
      .catch(() => {
        this.$message.error('连接服务器失败')
        this.loading = false
      })
  },
  mounted: function() {
    // 自适应图片高度
    var rightHeight = window.getComputedStyle(this.$refs.element).height
    document.getElementById('left-div').style.height = rightHeight
  },
  methods: {
    showPwd() {
      // 明文显示密码
      if (this.pwdType === 'password') {
        this.pwdType = ''
      } else {
        this.pwdType = 'password'
      }
    },
    passKaptcha() {
      // 从子组件获取验证码的数据
      this.loginForm.kaptcha = this.$refs.kaptcha.kaptcha
      console.log(this.loginForm.kaptcha)
    },
    handleLogin() {
      // 点击登录按钮
      // if (!this.showKaptcha) { // 如果未开启验证码，将验证码字段从提交字段中移除
      //   delete this.loginForm['kaptcha']
      //   delete this.loginRules['kaptcha']
      // }
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true
          // 密码加密
          const loginForm = {
            sid: this.$store.getters.sid,
            username: this.loginForm.username,
            password: RSAencrypt(this.loginForm.password),
            kaptcha: this.loginForm.kaptcha
          }
          this.$store
            .dispatch('Login', loginForm)
            .then(() => {
              this.loading = false
              this.$message.success('登录成功')
              this.$router.push({ path: '/' })
            })
            .catch(() => {
              // this.$message.error(error)
              this.loading = false
              if (this.showKaptcha) {
                this.$refs.kaptcha.refreshCode()
              }
            })
        } else {
          return false
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
$bg: #ffffff;
$light_gray: #ffffff;
$dark_gray: #889aa4;

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 40px;
    width: 85%;
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 8px 5px 8px 8px;
      color: $dark_gray;
      height: 40px;
      &:-webkit-autofill {
        -webkit-box-shadow: 0 0 0px 1000px $light_gray inset !important;
        -webkit-text-fill-color: $dark_gray !important;
      }
    }
  }
  .el-form-item {
    border: 1px solid #c5c5c5;
    background: #ffffff;
    border-radius: 5px;
    color: #000000;
  }
  .el-button {
    line-height: 1.2;
  }
}
</style>

<style rel="stylesheet/scss" lang="scss" scoped>
$bg: #ffffff;
$dark_gray: #889aa4;
$light_gray: #fff;
.login-container {
  position: relative;
  height: 100%;
  width: 100%;
  /*background: #000000 url("/static/images/login_images/bg.png") no-repeat;*/
  background-color: #000000;
  background-repeat: no-repeat;
  -webkit-background-size: 100% 100%;
  background-size: 100% 100%;
  // background-color: $bg;
  background-color: #a7cbfd;
  .login-div {
    /*height:385px;*/
    width: 800px;
    position: absolute;
    overflow: hidden;
    left: 50%;
    top: 50%;
    margin-left: -400px;
    margin-top: -220px;
    border: 1px solid #889aa4;
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12), 0 0 6px rgba(0, 0, 0, 0.04);
  }
  .left-div {
    width: 60%;
    float: left;
    /*background: url("/static/images/login_images/left.jpg");*/
    background-color: #ffffffff;
  }
  .title-div {
    margin: 20px 30px 30px 30px;
  }
  .title {
    // color: $light_gray;
    //color: #333333;
    color: #fff;
    font-size: 24px;
    font-weight: 400;
  }
  .title2 {
    color: #333333;
    font-size: 20px;
    font-weight: 400;
    margin-left: 90px;
    margin-top: -20px;
  }
  .right-div {
    width: 40%;
    float: left;
    background-color: white;
  }
  .clear-div {
    clear: both;
  }
  .login-form {
    max-width: 100%;
    padding: 15px 15px 5px 15px;
    margin: auto;
    overflow: hidden;
    border-radius: 3px;
    box-shadow: 0 5px 8px rgba(0, 0, 0, 0.12), 0 0 10px rgba(0, 0, 0, 0.04);
  }
  .tips {
    font-size: 14px;
    /*color: #fff;*/
    margin-bottom: 10px;
    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }
  .svg-container {
    padding: 0px 3px 0px 10px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }
  .login-title {
    font-size: 18px;
    font-weight: 400;
    color: #000;
    margin: 10px auto 30px auto;
    text-align: center;
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>