<template>
  <div class="login">
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <div class="title">欢迎登录</div>
      <div class="title2">安心E查工作台</div>
      <div class="login-box">
        <div class="login-tabs">
          <div v-for="(item, index) in tabs" :key="index" :class="tabActive === index ? 'login-tab tab-active' : 'login-tab'" @click="handleTab(index)">{{ item }}</div>
        </div>
        <div v-show="tabActive==0">
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" type="text" size="large" auto-complete="off" placeholder="账号">
              <template #prefix><i class="icon-user" /></template>
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" type="password" size="large" auto-complete="off" placeholder="密码" @keyup.enter="handleLogin">
              <template #prefix><i class="icon-password" /></template>
            </el-input>
          </el-form-item>
          <el-form-item v-if="captchaEnabled" prop="code">
            <el-input v-model="loginForm.code" size="large" auto-complete="off" placeholder="验证码" style="width: 63%" @keyup.enter="handleLogin">
              <template #prefix><i class="icon-verify" /></template>
            </el-input>
            <div class="login-code">
              <img :src="codeUrl" class="login-code-img" @click="getCode" />
            </div>
          </el-form-item>
          <el-form-item style="width: 100%">
            <el-button :loading="loading" size="large" type="primary" style="width: 100%" @click.prevent="handleLogin">
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
          </el-form-item>
        </div>
      </div>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span v-if="false"></span>
    </div>
  </div>
</template>

<script setup>
import { getCodeImg } from '@/api/login';
import { useUserStore } from '@/store/modules/user';
import { to } from 'await-to-js';

const userStore = useUserStore();
const router = useRouter();
const tabActive = ref(0);

// '粤政易扫码登录',
const tabs = ref(['账号密码登录']);
const loginForm = ref({
  username: '',
  password: '',
  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);

const redirect = ref(undefined);
const loginRef = ref();

const handleLogin = () => {
  loginRef.value?.validate(async (valid, fields) => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 localStorage 中设置记住用户名和密码
      // if (loginForm.value.rememberMe) {
      //   localStorage.setItem('username', String(loginForm.value.username));
      //   localStorage.setItem('password', String(loginForm.value.password));
      //   localStorage.setItem('rememberMe', String(loginForm.value.rememberMe));
      // } else {
      //   // 否则移除
      //   localStorage.removeItem('username');
      //   localStorage.removeItem('password');
      //   localStorage.removeItem('rememberMe');
      // }
      // 调用action的登录方法
      const [err] = await to(userStore.login(loginForm.value));
      if (!err) {
        const redirectUrl = redirect.value || '/';
        await router.push(redirectUrl);
        loading.value = false;
      } else {
        loading.value = false;
        // 重新获取验证码
        if (captchaEnabled.value) {
          await getCode();
        }
      }
    } else {
      console.log('error submit!', fields);
    }
  });
};

/**
 * 获取验证码
 */
const getCode = async () => {
  const res = await getCodeImg();
  const { data } = res;
  captchaEnabled.value = data.captchaEnabled === undefined ? true : data.captchaEnabled;
  if (captchaEnabled.value) {
    codeUrl.value = 'data:image/gif;base64,' + data.img;
    loginForm.value.uuid = data.uuid;
  }
};

const getLoginData = () => {
  const username = localStorage.getItem('username');
  const password = localStorage.getItem('password');
  const rememberMe = localStorage.getItem('rememberMe');
  loginForm.value = {
    username: username === null ? String(loginForm.value.username) : username,
    password: password === null ? String(loginForm.value.password) : String(password),
    rememberMe: rememberMe === null ? false : Boolean(rememberMe)
  };
};

onMounted(() => {
  getCode();
  getLoginData();
});
</script>

<style lang="scss" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url('../assets/images/login-background.jpg');
  background-size: cover;
}

.title {
  font-size: 24px;
  font-weight: bold;
  color: #25282e;
}

.title2 {
  font-size: 36px;
  font-weight: bold;
  margin: 6px 0 20px;
  color: #25282e;
}

.login-form {
  width: 400px;
  .login-box {
    border-radius: 6px;
    box-shadow: 0 0 4px #d4e9fe;
    width: 400px;
    padding: 25px 25px 5px 25px;
  }
  .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 {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial, serif;
  font-size: 12px;
  letter-spacing: 1px;
}

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

.login-tabs {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 40px;
  line-height: 40px;
  border-bottom: 1px solid #eeeeee;
  margin-bottom: 15px;
  cursor: pointer;
  .login-tab {
    padding: 0 10px;
  }
  .tab-active {
    color: #5695eb;
    position: relative;
    &::before {
      content: '';
      width: 100%;
      height: 1px;
      position: absolute;
      bottom: 0;
      left: 0;
      background-color: #5695eb;
    }
  }
}
:deep(.el-input--large) {
  .el-input__wrapper {
    padding: 1px 5px !important;
  }
}

.icon-user {
  background: url('@/assets/images/user.png') no-repeat;
}
.icon-password {
  background: url('@/assets/images/password.png') no-repeat;
}
.icon-verify {
  background: url('@/assets/images/verify.png') no-repeat;
}
.icon-user,
.icon-password,
.icon-verify {
  width: 24px;
  height: 24px;
  background-size: 100% 100%;
  margin-right: 10px;
  position: relative;
  &::after {
    content: '';
    display: inline-block;
    width: 1px;
    height: 18px;
    background-color: #d9d9d9;
    position: absolute;
    top: 3px;
    right: -5px;
  }
}
</style>
