<template>
  <div class="login-bg">
    <div>
      <div class="sys-name">
        <div class="">智慧设备监控平台</div>
      </div>
      <div class="login-container">
        <div class="login-header">
          <!-- <img class="logo mr10" src="../../assets/img/logo.svg" alt="" /> -->
          <div class="login-title">管理员登录</div>
        </div>
        <el-form :model="param" :rules="rules" ref="login" size="large">
          <el-form-item prop="username">
            <el-input v-model="param.username" placeholder="用户名">
              <template #prepend>
                <el-icon>
                  <User />
                </el-icon>
              </template>
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              type="password"
              placeholder="密码"
              v-model="param.password"
              show-password
              @keyup.enter="submitForm(login)"
            >
              <template #prepend>
                <el-icon>
                  <Lock />
                </el-icon>
              </template>
            </el-input>
          </el-form-item>
          <div class="pwd-tips">
            <el-checkbox
              style="color: #0e83fc"
              class="pwd-checkbox"
              v-model="checked"
              label="记住密码"
            />
            <el-link
              style="color: #0e83fc"
              type="primary"
              @click="$router.push('/reset-pwd')"
              >忘记密码</el-link
            >
          </div>
          <el-button
            class="login-btn"
            type="primary"
            size="large"
            @click="submitForm(login)"
            >登录</el-button
          >
          <!-- <p class="login-tips">Tips : 用户名和密码随便填。</p>
                <p class="login-text">
                    没有账号？<el-link type="primary" @click="$router.push('/register')">立即注册</el-link>
                </p> -->
        </el-form>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
  import { ref, reactive } from 'vue'
  import { useTabsStore } from '@/store/tabs'
  import { usePermissStore } from '@/store/permiss'
  import { useRouter } from 'vue-router'
  import { ElMessage } from 'element-plus'
  import type { FormInstance, FormRules } from 'element-plus'
  import { fetchLogin } from '@/api/auth'
  import { saveToken } from '@/utils/authToken'

  interface LoginForm {
    username: string
    password: string
  }

  const lgStr = localStorage.getItem('login-param')
  const defParam = lgStr ? JSON.parse(lgStr) : null
  const checked = ref(lgStr ? true : false)

  const router = useRouter()
  const param = reactive<LoginForm>({
    username: defParam ? defParam.username : '',
    password: defParam ? defParam.password : '',
  })

  const rules: FormRules = {
    username: [
      {
        required: true,
        message: '请输入用户名',
        trigger: 'blur',
      },
    ],
    password: [{ required: true, message: '请输入密码', trigger: 'blur' }],
  }
  const permiss = usePermissStore()
  const login = ref<FormInstance>()
  const submitForm = (formEl: FormInstance | undefined) => {
    if (!formEl) return
    formEl.validate((valid: boolean) => {
      if (valid) {
        fetchLogin({ account: param.username, password: param.password })
          .then((res) => {
            if (res.code != 200) return ElMessage.error('登录失败')
            else {
              ElMessage.success('登录成功')
              // 存储token
              saveToken(res.data.token)
              // 存储用户名
              localStorage.setItem('vuems_name', param.username)
              // 设置权限
              const keys =
                permiss.defaultList[
                  param.username == 'admin' ? 'admin' : 'user'
                ]
              permiss.handleSet(keys)

              router.push('/')
              // 记住密码
              if (checked.value) {
                localStorage.setItem('login-param', JSON.stringify(param))
              } else {
                localStorage.removeItem('login-param')
              }
            }
          })
          .catch(() => {
            ElMessage.error('登录失败')
          })
      } else {
        ElMessage.error('登录失败')
        return false
      }
    })
  }

  const tabs = useTabsStore()
  tabs.clearTabs()
</script>

<style scoped>
  .login-bg {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100vh;
    background: url(../../assets/img/login-bg-1.jpg) center/cover no-repeat;
  }

  .login-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
  }

  .logo {
    width: 35px;
  }

  .login-title {
    font-size: 22px;
    color: #333;
    /* font-weight: bold; */
  }

  .login-container {
    width: 350px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.5);
    padding: 40px 24px 50px;
    box-sizing: border-box;
  }

  .pwd-tips {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    margin: -10px 0 10px;
    color: #787878;
  }

  .pwd-checkbox {
    height: auto;
  }

  .login-btn {
    display: block;
    width: 100%;
    background: #0e83fc;
  }

  .login-tips {
    font-size: 12px;
    color: #999;
  }

  .login-text {
    display: flex;
    align-items: center;
    margin-top: 20px;
    font-size: 14px;
    color: #787878;
  }

  .sys-name {
    font-size: 30px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 50px;
    color: #fff;
  }
</style>
