<template>
  <div class="login">
    <h2 class="login-title">四川亚润科技有限公司</h2>
    <div class="el-login-body">
      <img class="el-login-image" src="@/assets/images/login.png" alt="">
      <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
        <h3 class="login-form-title">
          <svg-icon icon-class="icon-logo" class="login-form-icon" />
          <span>流量精算系统</span>
        </h3>
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            type="text"
            auto-complete="off"
            placeholder="请输入帐号"
          >
            <svg-icon slot="prefix" icon-class="icon-user" class="el-input__icon input-icon-user" />
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            type="password"
            auto-complete="off"
            placeholder="密码"
            @keyup.enter.native="handleLogin"
          >
            <svg-icon slot="prefix" icon-class="icon-lock" class="el-input__icon input-icon-lock" />
          </el-input>
        </el-form-item>
        <el-form-item prop="code" v-if="captchaEnabled">
          <el-input
            v-model="loginForm.code"
            auto-complete="off"
            placeholder="验证码"
            style="width: 60%"
            @keyup.enter.native="handleLogin"
          >
            <svg-icon slot="prefix" icon-class="icon-security" class="el-input__icon input-icon-security" />
          </el-input>
          <div class="login-code">
            <img :src="codeUrl" @click="getCode" class="login-code-img"/>
          </div>
        </el-form-item>
<!--        <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>-->
        <el-form-item style="width:100%;margin-top: 40px">
          <el-button
            :loading="loading"
            size="medium"
            type="primary"
            style="width:100%;"
            @click.native.prevent="handleLogin"
          >
            <span v-if="!loading">登 录</span>
            <span v-else>登 录 中...</span>
          </el-button>
          <div style="float: right;" v-if="register">
            <router-link class="link-type" :to="'/register'">立即注册</router-link>
          </div>
        </el-form-item>
      </el-form>
    </div>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>ICP备案</span>
      <span>川B2-20090191-18</span>
      <span>川公网安备 44010602006299</span>
      <span>增值电信业务许可证</span>
      <span>川B2-20090191 B2-20090058</span>
    </div>
  </div>
</template>

<script>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from '@/utils/jsencrypt'

export default {
  name: "Login",
  data() {
    return {
      codeUrl: "",
      loginForm: {
        username: "",
        password: "",
        rememberMe: false,
        code: "",
        uuid: ""
      },
      loginRules: {
        username: [
          { required: true, trigger: "blur", message: "请输入您的账号" }
        ],
        password: [
          { required: true, trigger: "blur", message: "请输入您的密码" }
        ],
        code: [{ required: true, trigger: "change", message: "请输入验证码" }]
      },
      loading: false,
      // 验证码开关
      captchaEnabled: true,
      // 注册开关
      register: false,
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  created() {
    this.getCode();
    // this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get('rememberMe')
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set("username", this.loginForm.username, { expires: 30 });
            Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 });
            Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
          } else {
            Cookies.remove("username");
            Cookies.remove("password");
            Cookies.remove('rememberMe');
          }
          this.$store.dispatch("Login", this.loginForm).then(() => {
            this.$router.push({ path: this.redirect || "/" }).catch(()=>{});
          }).catch(() => {
            this.loading = false;
            if (this.captchaEnabled) {
              this.getCode();
            }
          });
        }
      });
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background: #F6FDFC;
}
.login-title {
  position: absolute;
  top: 20px;
  left: 30px;
  font-size: 16px;
  font-weight: bold;
  color: #3D3D3D;
}
.el-login-body {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.el-login-image {
  width: 400px;
  height: 320px;
  margin-right: 112px;
}
.login-form {
  background: #ffffff;
  box-shadow: 0px 4px 10px 0px rgba(31, 128, 255, 0.149);
  width: 440px;
  border-radius: 8px;
  padding: 44px 35px 80px 35px;
  .el-form-item {
  }
  .el-input {
    input {
      height: 50px;
      border-radius: 5px;
      border: 1px solid #E4E4E4;
      padding-left: 50px;
      font-size: 14px;
      color: #1D2738;
      &::placeholder {
        color: #929496;
      }
    }
  }
  .el-input--prefix::after {
    content: "";
    position: absolute;
    top: 15px;
    left: 40px;
    width: 1px;
    height: 20px;
    background: #D8D8D8;
  }
  .el-input__prefix {
    left: 0;
    padding: 16px;
    display: flex;
  }
  .el-input__icon {
    line-height: 18px;
  }
  .input-icon-user {
    height: 18px;
    width: 16px;
  }
  .input-icon-lock {
    height: 18px;
    width: 16px;
  }
  .input-icon-security {
    height: 18px;
    width: 16px;
  }
}
.login-form-title {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 36px 0;
  .login-form-icon {
    width: 40px;
    height: 40px;
    margin-right: 8px;
  }
  span {
    font-size: 26px;
    font-weight: 800;
    color: #1D2738;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  height: 50px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  font-size: 12px;
  color: #797979;
  padding-bottom: 20px;
  span {
    margin: 0 10px;
  }
}
.login-code-img {
  height: 50px;
}
</style>
