<template>
  <div class="login">
    <h1 class="title">青岛机场无人驾驶车辆协同云平台</h1>
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <div class="login-title">登录</div>
      
      <div class="form-label">账号</div>
      <el-form-item prop="username">
        <el-input
          v-model="loginForm.username"
          type="text"
          size="large"
          auto-complete="off"
          placeholder="请输入账号"
        >
          <template #prefix><svg-icon icon-class="user" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      
      <div class="form-label">密码</div>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          size="large"
          auto-complete="off"
          placeholder="请输入密码"
          @keyup.enter="handleLogin"
        >
          <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
        </el-input>
      </el-form-item>
      
      <div class="form-label" v-if="captchaEnabled">验证码</div>
      <el-form-item prop="code" v-if="captchaEnabled">
        <div class="captcha-container">
          <el-input
            v-model="loginForm.code"
            size="large"
            auto-complete="off"
            placeholder="请输入验证码"
            @keyup.enter="handleLogin"
          >
            <template #prefix><svg-icon icon-class="validCode" class="el-input__icon input-icon" /></template>
          </el-input>
          <div class="login-code">
            <img :src="codeUrl" @click="getCode" class="login-code-img"/>
          </div>
        </div>
      </el-form-item>
      
      <el-checkbox v-model="loginForm.rememberMe" class="remember-me">记住密码</el-checkbox>
      
      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="large"
          type="primary"
          class="login-button"
          @click.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>
    <!--  底部  -->
    
  </div>
</template>

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

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

const loginForm = ref({
  username: "admin",
  password: "admin123",
  rememberMe: false,
  code: "",
  uuid: ""
});

const 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" }]
};

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(undefined);

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("username", loginForm.value.username, { expires: 30 });
        Cookies.set("password", encrypt(loginForm.value.password), { expires: 30 });
        Cookies.set("rememberMe", loginForm.value.rememberMe, { expires: 30 });
      } else {
        // 否则移除
        Cookies.remove("username");
        Cookies.remove("password");
        Cookies.remove("rememberMe");
      }
      // 调用action的登录方法
      userStore.login(loginForm.value).then(() => {
        router.push({ path: redirect.value || "/" });
      }).catch(() => {
        loading.value = false;
        // 重新获取验证码
        if (captchaEnabled.value) {
          getCode();
        }
      });
    }
  });
}

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("username");
  const password = Cookies.get("password");
  const rememberMe = Cookies.get("rememberMe");
  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 {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.png");
  background-size: 100% 100%;
}

.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #ffffff;
  font-size: 48px;
  font-weight: normal;
}

.login-title {
  color: #fff;
  font-size: 36px;
  font-weight: normal;
  margin-bottom: 30px;
  display: inline-block;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.form-label {
  color: #fff;
  font-size: 16px;
  margin-bottom: 10px;
  text-align: left;
}

.login-form {
  border-radius: 8px;
  background: rgba(41, 44, 56, 0.8);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
  width: 636px;
  padding: 40px 60px;
  
  .el-form-item {
    margin-bottom: 25px;
  }
  
  .el-input {
    height: 56px;
    
    :deep(.el-input__wrapper) {
      background-color: rgba(255, 255, 255, 0.1);
      box-shadow: none;
      border-radius: 4px;
      padding: 0 15px;
      height: 56px !important;
      line-height: 56px;
    }
    
    :deep(.el-input__inner) {
      color: #ffffff;
      height: 56px;
      line-height: 56px;
      font-size: 16px;
    }
    
    input {
      height: 56px;
    }
  }
  
  .input-icon {
    height: 56px;
    width: 20px;
    margin-right: 10px;
    color: rgba(255, 255, 255, 0.7);
  }
}

.captcha-container {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: space-between;
  
  .el-input {
    flex: 1;
    // width: calc(65% - 5px);
    
    :deep(.el-input__wrapper) {
      height: 56px;
    }
  }
}

.login-code {
  // width: calc(35% - 5px);
  height: 56px;
  img {
    cursor: pointer;
    height: 56px;
    width: 100%;
    object-fit: cover;
    border-radius: 4px;
  }
}

.remember-me {
  color: #fff;
  margin-bottom: 25px;
}

.login-button {
  height: 56px;
  font-size: 18px;
  background-color: #347AE2 !important;
  border-color: #347AE2 !important;
  width: 100%;
  margin-top: 10px;
}

.link-type {
  color: #347AE2;
}
</style>

