<template>
  <div class="login">
    <!-- 顶部Logo -->
    <!-- <div class="TopLogo"></div> -->
    <div class="TopStyle"></div>
    <div class="TopName">延安城市生命线</div>
    <!-- 登录表单 -->
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">登录</h3>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          style="background: #eaf1fb"
          type="text"
          size="large"
          autocomplete="off"
          :name="randomUsernameName"
          placeholder="请输入账号"
        >
          <template #prefix>
            <span class="input-Title">账号</span>
          </template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          size="large"
          autocomplete="off"
          :name="randomPasswordName"
          placeholder="8-20位大小写字母+数字+特殊符号"
          show-password
          @keyup.enter="handleLogin"
        >
          <template #prefix>
            <span class="input-Title">密码</span>
          </template>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          size="large"
          autocomplete="off"
          placeholder="请输入"
          style="width: 63%"
          @keyup.enter="handleLogin"
        >
          <template #prefix>
            <span class="input-Title">验证码</span>
          </template>
        </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%">
        <el-button
          :loading="loading"
          size="large"
          type="primary"
          style="width: 100%"
          @click.prevent="handleLogin"
          class="LoginBurtton"
        >
          <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>
    <!--  底部  -->
    <div class="el-login-footer">
      <!-- <span>Copyright</span> -->
    </div>
  </div>
</template>

<script setup>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";
import { EncryptAES } from "@/utils/AES.js";
import useUserStore from "@/store/modules/user";

const userStore = useUserStore();
const router = useRouter();
const { proxy } = getCurrentInstance();

const randomUsernameName = ref('username_' + Math.random().toString(36).substring(2, 11));
const randomPasswordName = ref('password_' + Math.random().toString(36).substring(2, 11));

const loginForm = ref({
  username: "",
  password: "",
  rememberMe: false,
  code: "",
  uuid: "",
});

const loginRules = {
  username: [{ required: true, trigger: "blur", message: "请输入您的账号" }],
  code: [{ required: true, trigger: "blur", message: "请输入验证码" }],
  password: [
    {
      min: 8,
      max: 20,
      message: "8-20位大小写字母+数字+特殊符号",
      required: true,
      trigger: "blur",
      validator: validPassword,
    },
  ],
};
function validPassword(rule, value, callback) {
  // 密码校验 至少8位大小写英文字母+数字+特殊符号
  let reg = /^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[^\w\s]).{8,20}$/;
  if (!reg.test(value)) {
    callback(new Error("密码8-20位大小写英文字母+数字+特殊符号"));
  } else {
    callback();
  }
}

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 注册开关
const register = ref(false);
const redirect = ref("/oneMap");

function handleLogin() {
  proxy.$refs.loginRef.validate((valid) => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        Cookies.set("usernameNF", loginForm.value.username, { expires: 30 });
        Cookies.set("passwordNF", encrypt(loginForm.value.password), {
          expires: 30,
        });
        Cookies.set("rememberMeNF", loginForm.value.rememberMe, {
          expires: 30,
        });
      } else {
        // 否则移除
        Cookies.remove("usernameNF");
        Cookies.remove("passwordNF");
        Cookies.remove("rememberMeNF");
      }
      // 调用action的登录方法
      let params = { ...loginForm.value };
      params.password = EncryptAES(params.password);
      userStore
        .login(params)
        .then(() => {
          router.push({
            path: "/index",
            name: "Index",
            meta: { title: "首页", icon: "dashboard", affix: true, noCache: true },
            query: { type: "FullScreen" },
          });
        })
        .catch((err) => {
          getCode();
          loading.value = false;
        });
    }
  });
}
// 获取验证码
function getCode() {
  getCodeImg().then((res) => {
    captchaEnabled.value = res.captchaEnabled === undefined ? true : res.captchaEnabled;
    if (captchaEnabled.value) {
      codeUrl.value = "data:image/gif;base64," + res.img;
      loginForm.value.uuid = res.uuid;
    }
  });
}

function getCookie() {
  const username = Cookies.get("usernameNF");
  const password = Cookies.get("passwordNF");
  const rememberMe = Cookies.get("rememberMeNF");
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password: password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
  };
}

getCode();
getCookie();
</script>

<style lang="scss" scoped>
.login {
  height: 100%;
  background-image: url("@/assets/images/login-background.jpg");
  background-size: cover;
  position: relative;
}

.TopLogo {
  background-image: url("@/assets/images/logo.png");
  background-size: cover;
  width: 114px;
  height: 36px;
  position: absolute;
  top: 33px;
  left: 40px;
}

.TopStyle {
  width: 1px;
  height: 20px;
  background: #cfd0e5;
  position: absolute;
  top: 49px;
  left: 191px;
}

.TopName {
  height: 26px;
  font-size: 26px;
  font-family: Source Han Sans CN;
  font-weight: bold;
  color: #000046;
  position: absolute;
  top: 39px;
  left: 30px;
}

.login-form {
  position: absolute;
  top: 314px;
  right: 223px;
  border-radius: 6px;
  background: #ffffff;
  width: 450px;
  height: 462px;
  padding: 80px 37px 5px 49px;
  background-image: url("@/assets/images/LoginForm.jpg");
  background-size: cover;
  box-sizing: border-box;

  .title {
    text-align: left;
    margin: 0 0 30px 0px;
    color: #707070;
    font-size: 24px;
    font-family: Source Han Sans CN;
    font-weight: 600;
    color: #030a1e;
    letter-spacing: 3px;
  }

  .el-input {
    height: 40px;

    input {
      height: 40px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 40px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  position: fixed;
  bottom: 40px;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  letter-spacing: 1px;
  height: 18px;
  font-size: 16px;
  font-family: Source Han Sans CN;
  font-weight: bold;
  color: #5266ab;
}

.login-code-img {
  height: 40px;
  padding-left: 12px;
}

.LoginBurtton {
  width: 300px;
  height: 40px;
  background: linear-gradient(90deg, #2270ff 0%, #5f98ff 100%);
  border-radius: 20px;
}

.input-Title {
  width: 65px;
  height: 100%;
  text-align: left;
  font-size: 16px;
  font-family: Source Han Sans CN;
  font-weight: 500;
  color: #030a1e;
  position: relative;

  &::after {
    content: "";
    width: 1px;
    height: 14px;
    background: #d1dff2;
    position: absolute;
    right: 0;
    top: 12px;
  }
}

:deep(.el-input__wrapper) {
  background: #eaf1fb;
  border: none;
}
</style>