<template>
  <div class="login">
    <div class="login-cards">
      <div class="login-brand">
        <div class="login-brand__inner">
          <div class="login-brand__logo-wrap">
            <img class="login-brand__logo" :src="logoUrl" alt="" />
          </div>
          <h1 class="login-brand__title">可视化电子围栏管理系统</h1>
          <p class="login-brand__subtitle">智能安防 · 实时监控 · 高效管理</p>
        </div>
      </div>
      <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
        <div class="title-box">
          <h3 class="title">欢迎登录</h3>
          <p>请输入您的账号和密码访问系统</p>
          <!-- <lang-select /> -->
        </div>
        <!-- <el-form-item v-if="tenantEnabled" prop="tenantId">
        <el-select v-model="loginForm.tenantId" filterable :placeholder="proxy.$t('login.selectPlaceholder')" style="width: 100%">
          <el-option v-for="item in tenantList" :key="item.tenantId" :label="item.companyName" :value="item.tenantId"></el-option>
          <template #prefix><svg-icon icon-class="company" class="el-input__icon input-icon" /></template>
        </el-select>
      </el-form-item> -->
        <el-form-item label="账号" prop="username">
          <el-input v-model="loginForm.username" type="text" size="large" auto-complete="off" :placeholder="proxy.$t('login.username')">
            <template #prefix><svg-icon icon-class="user" class="el-input__icon input-icon" /></template>
          </el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input
            v-model="loginForm.password"
            type="password"
            size="large"
            auto-complete="off"
            :placeholder="proxy.$t('login.password')"
            @keyup.enter="handleLogin"
          >
            <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
          </el-input>
        </el-form-item>
        <el-form-item v-if="captchaEnabled" prop="code">
          <el-input
            v-model="loginForm.code"
            size="large"
            auto-complete="off"
            :placeholder="proxy.$t('login.code')"
            style="width: 63%"
            @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" class="login-code-img" @click="getCode" />
          </div>
        </el-form-item>
        <div class="login-form__extras">
          <el-checkbox v-model="loginForm.rememberMe">记住密码</el-checkbox>
          <el-button link type="primary" @click="doSocialLogin('github')">忘记密码</el-button>
        </div>
        <el-form-item style="width: 100%">
          <el-button :loading="loading" size="large" type="primary" style="width: 100%" @click.prevent="handleLogin">
            <span v-if="!loading">{{ proxy.$t('login.login') }}</span>
            <span v-else>{{ proxy.$t('login.logging') }}</span>
          </el-button>
          <div v-if="register" style="float: right">
            <router-link class="link-type" :to="'/register'">{{ proxy.$t('login.switchRegisterPage') }}</router-link>
          </div>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script setup lang="ts">
import { getCodeImg, getTenantList } from '@/api/login';
import { authRouterUrl } from '@/api/system/social/auth';
import { useUserStore } from '@/store/modules/user';
import { LoginData, TenantVO } from '@/api/types';
import { to } from 'await-to-js';
import { HttpStatus } from '@/enums/RespEnum';
import { useI18n } from 'vue-i18n';
import logoUrl from '@/assets/logo/logo.png';

const { proxy } = getCurrentInstance() as ComponentInternalInstance;

const userStore = useUserStore();
const router = useRouter();
const { t } = useI18n();

const loginForm = ref<LoginData>({
  tenantId: '000000',
  username: 'admin',
  password: 'admin123',
  rememberMe: false,
  code: '',
  uuid: ''
} as LoginData);

const loginRules: ElFormRules = {
  tenantId: [{ required: true, trigger: 'blur', message: t('login.rule.tenantId.required') }],
  username: [{ required: true, trigger: 'blur', message: t('login.rule.username.required') }],
  password: [{ required: true, trigger: 'blur', message: t('login.rule.password.required') }],
  code: [{ required: true, trigger: 'change', message: t('login.rule.code.required') }]
};

const codeUrl = ref('');
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 租户开关
const tenantEnabled = ref(true);

// 注册开关
const register = ref(false);
const redirect = ref('/');
const loginRef = ref<ElFormInstance>();
// 租户列表
const tenantList = ref<TenantVO[]>([]);

watch(
  () => router.currentRoute.value,
  (newRoute: any) => {
    redirect.value = newRoute.query && newRoute.query.redirect && decodeURIComponent(newRoute.query.redirect);
  },
  { immediate: true }
);

const handleLogin = () => {
  loginRef.value?.validate(async (valid: boolean, fields: any) => {
    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('tenantId', String(loginForm.value.tenantId));
        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('tenantId');
        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) {
    // 刷新验证码时清空输入框
    loginForm.value.code = '';
    codeUrl.value = 'data:image/gif;base64,' + data.img;
    loginForm.value.uuid = data.uuid;
  }
};

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

/**
 * 获取租户列表
 */
const initTenantList = async () => {
  const { data } = await getTenantList(false);
  tenantEnabled.value = data.tenantEnabled === undefined ? true : data.tenantEnabled;
  if (tenantEnabled.value) {
    tenantList.value = data.voList;
    if (tenantList.value != null && tenantList.value.length !== 0) {
      loginForm.value.tenantId = tenantList.value[0].tenantId;
    }
  }
};

/**
 * 第三方登录
 * @param type
 */
const doSocialLogin = (type: string) => {
  authRouterUrl(type, loginForm.value.tenantId).then((res: any) => {
    if (res.code === HttpStatus.SUCCESS) {
      // 获取授权地址跳转
      window.location.href = res.data;
    } else {
      ElMessage.error(res.msg);
    }
  });
};

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

<style lang="scss" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
  min-height: 100vh;
  width: 100%;
  padding: 24px;
  background-image: url('../assets/images/logbg.jpg');
  background-size: cover;
  background-position: center;
}

.login-cards {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: 0;
  max-width: 100%;
}

.login-brand {
  flex: 0 0 auto;
  width: min(420px, 90vw);
  max-width: 420px;
  height: 450px;
  max-height: 450px;
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--app-radius-lg);
  background: linear-gradient(165deg, #2d60e3 0%, #1a4bb8 55%, #153d9a 100%);
  box-shadow: 0 24px 48px rgba(30, 64, 175, 0.35);
  z-index: 0;
}

.login-brand__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 36px 28px;
  gap: 16px;
  box-sizing: border-box;
}

.login-brand__logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 88px;
  height: 88px;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.login-brand__logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
}

.login-brand__title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.35;
  color: #fff;
  letter-spacing: 0.5px;
}

.login-brand__subtitle {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 0.3px;
}

@media (max-width: 900px) {
  .login-cards {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .login-brand {
    width: min(420px, 100%);
    max-width: 420px;
    height: 450px;
    max-height: 450px;
    border-radius: var(--app-radius-lg);
  }

  .login-form {
    border-radius: 10px;
  }
}

.title-box {
  flex-shrink: 0;
  gap: 8px;

  .title {
    margin: 0 0 10px 0;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.3;
    color: #111827;
    letter-spacing: 0;
  }

  > p {
    margin: 0 0 28px 0;
    font-size: 13px;
    line-height: 1.5;
    color: #9ca3af;
    font-weight: 400;
  }

  :deep(.lang-select--style) {
    line-height: 0;
    color: var(--el-text-color-secondary);
  }
}

.login-form {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  min-height: 0;
  width: min(420px, 90vw);
  height: 450px;
  max-height: 450px;
  padding: 44px 48px 36px;
  overflow-x: hidden;
  overflow-y: auto;
  border-radius: 10px;
  background: #ffffff;
  border: 1px solid #ebebeb;
  z-index: 1;
  box-shadow:
    0 12px 40px rgba(15, 23, 42, 0.08),
    0 2px 10px rgba(15, 23, 42, 0.04);

  :deep(.el-form-item__label) {
    color: #1f2937;
    font-weight: 500;
  }

  :deep(.el-form-item) {
    margin-bottom: 14px;
  }

  :deep(.el-form-item:last-child) {
    margin-bottom: 0;
    margin-top: auto;
  }

  :deep(.el-input__wrapper) {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 0 0 1px #e5e7eb inset;
  }

  :deep(.el-input__wrapper:hover) {
    box-shadow: 0 0 0 1px #d1d5db inset;
  }

  :deep(.el-input__wrapper.is-focus) {
    box-shadow:
      0 0 0 1px #2d60e3 inset,
      0 0 0 3px rgba(45, 96, 227, 0.12);
  }

  :deep(.el-button--primary) {
    border-radius: 8px;
    font-weight: 600;
    border: none;
    box-shadow: none;
  }

  .login-form__extras {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    width: 100%;
    flex-shrink: 0;
    margin-bottom: 14px;
  }

  :deep(.login-form__extras .el-checkbox) {
    margin-right: 0;
    height: auto;
  }

  :deep(.login-form__extras .el-checkbox__label) {
    color: #374151;
    font-size: 14px;
  }

  :deep(.login-form__extras .el-button.is-link) {
    padding: 0;
    height: auto;
    font-size: 14px;
    vertical-align: baseline;
  }

  .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-form :deep(.el-button.is-circle) {
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.08);
  color: var(--el-text-color-regular);
}

.login-form :deep(.el-button.is-circle:hover) {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.2);
}

.login-code {
  width: calc(37% - 10px);
  height: 40px;
  float: right;
  margin-left: 10px;
  box-sizing: border-box;
  border-radius: var(--app-radius-sm);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--el-border-color-light);

  img {
    cursor: pointer;
    vertical-align: middle;
    display: block;
    width: 100%;
    height: 40px;
    object-fit: cover;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: rgba(255, 255, 255, 0.75);
  font-family: Arial, serif;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 40px;
  padding-left: 0;
}

:global(html.dark) {
  .login-brand {
    background: linear-gradient(165deg, #2563eb 0%, #1d4ed8 55%, #1e3a8a 100%);
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.45);
  }

  .login-form {
    background: rgba(17, 24, 39, 0.9);
    border-color: rgba(148, 163, 184, 0.2);
  }

  .login-form :deep(.el-input__wrapper) {
    background-color: rgba(17, 24, 39, 0.7);
  }

  .login-form :deep(.el-button.is-circle) {
    background: rgba(148, 163, 184, 0.12);
    border-color: rgba(148, 163, 184, 0.25);
    color: #e5e7eb;
  }

  .el-login-footer {
    color: rgba(226, 232, 240, 0.65);
  }
}
</style>
