<template>
  <div class="login" :style="'background-image:url(' + Background + ');'">
    <div class="headder">
      <h2>边坡结构稳定性监测系统</h2>
      <!-- <h4>ONLINE MONITORING SYSTEM FOR TAILINGS POND DATA</h4> -->
    </div>
    <div class="logo-place">
      <div class="logo-title">登录窗口</div>
      <!-- <h3 class="subtitle">欢迎登录后台系统</h3> -->
      <div class="ctn-place">
        <div class="inbox-range">
          <div class="ctn-fix">
            <el-form
              ref="loginForm"
              :model="loginForm"
              :rules="loginRules"
              label-position="left"
              label-width="0px"
              class="login-form"
            >
              <el-form-item prop="username">
                <el-input
                  v-model="loginForm.username"
                  type="text"
                  auto-complete="off"
                  placeholder="账号"
                >
                  <svg-icon
                    slot="prefix"
                    icon-class="user"
                    class="el-input__icon input-icon"
                  />
                </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="password"
                    class="el-input__icon input-icon"
                  />
                </el-input>
              </el-form-item>

              <el-form-item prop="code">
                <el-input
                  v-model="loginForm.code"
                  auto-complete="off"
                  placeholder="验证码"
                  style="width: 63%"
                  @keyup.enter.native="handleLogin"
                >
                  <svg-icon
                    slot="prefix"
                    icon-class="validCode"
                    class="el-input__icon input-icon"
                  />
                </el-input>
                <div class="login-code">
                  <img :src="codeUrl" @click="getCode" />
                </div>
              </el-form-item>

              <el-form-item style="width: 100%">
                <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>
              </el-form-item>
            </el-form>
          </div>
        </div>
      </div>
    </div>

    <!--  底部  -->
    <div class="el-login-footer">
      <span style="color: #eee; margin-top: 10px"
        >技术支持：威海晶合数字矿山技术有限公司</span
      >
    </div>
  </div>
</template>

<script>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";
import Background from "@/assets/images/login_bg.png";
export default {
  name: "Login",
  data() {
    return {
      Background: Background,
      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: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true,
    },
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    getCode() {
      getCodeImg().then((res) => {
        console.log(res);
        this.captchaEnabled =
          res.captchaEnabled === undefined ? true : res.captchaEnabled;
        if (this.captchaEnabled) {
          this.codeUrl = "data:image/gif;base64," + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get("username");
      const password = Cookies.get("password");
      const rememberMe = Cookies.get("rememberMe");
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password:
          password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
      };
    },
    handleLogin() {
      this.$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" scope>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  height: 100%;
  background-size: cover;
  position: relative;

  .headder {
    margin-bottom: 48px;
    text-align: center;
    h2,
    h4 {
      margin: 0;
      padding: 0;
      line-height: 1;
      background-image: -webkit-linear-gradient(top, #fff, #a2deff, #23a5f9);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      font-weight: bold;
    }
    h2 {
      font-size: 66px;
      letter-spacing: 6px;
    }
    h4 {
      margin-top: 2px;
      font-size: 28.5px;
    }
  }

  .logo-place {
    position: relative;
    width: 968px;
    height: 556px; /* margin:2.01rem auto 0; */
    background: no-repeat top center url("~@/assets/images/login_adorn1.png");
    background-size: 100% 100%;
  }

  .ctn-place {
    position: absolute;
    top: 161px;
    right: 6px;
    height: auto;
    width: 479px;
    flex: 1;
    display: flex;

    .inbox-range {
      flex: 1;
      .ctn-fix {
        width: 380px;
        margin: 0 auto;
      }
    }

    .login-form {
      .el-input {
        height: 58px;
        min-height: 38px;
        input {
          height: 58px;
          padding-left: 40px;
          background-color: #1042a1 !important;
          color: #fff;
          border-color: #085fa2;
        }
      }
      .input-icon {
        height: 58px;
        width: 24px;
        margin-left: 2px;
      }

      .el-form-item__content {
        line-height: 58px;
      }

      .el-form-item {
        margin-bottom: 25px;
        &:last-child {
          margin-bottom: 0;
        }
        .el-select {
          width: 100%;
        }
      }
    }
  }

  .logo-title {
    position: absolute;
    top: 15px;
    left: 0;
    height: auto;
    width: 100%;
    text-align: center;
    cursor: default;
    font-size: 26px;
    line-height: 1;
    letter-spacing: 10px;
    color: rgb(56, 230, 255);
    text-shadow: 0px 0px 2px rgb(56 230 255);
  }
  .subtitle {
    position: absolute;
    top: 91px;
    left: 0;
    height: auto;
    width: 100%;
    text-align: center;
    cursor: default;
    font-size: 34px;
    line-height: 1;
    letter-spacing: 10px;
    color: #b1edf8;
  }
}

.login-code {
  width: 33%;
  display: inline-block;
  height: 38px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
</style>