<template>
  <div class="dashboard-container">
    <el-card class="welcome-card">
      <template #header>
        <div class="card-header">
          <span class="title">👋 欢迎回来，{{ userStore.username }}</span>
          <el-tag type="success">系统运行正常</el-tag>
        </div>
      </template>

      <div class="card-body">
        <h2>IRIS 库存管理系统</h2>
        <p class="subtitle">请选择您要进行的业务操作：</p>

        <div class="action-buttons">
          <el-button type="primary" size="large" @click="handleNav('/inventory/buy')">
            <el-icon style="margin-right: 5px"><ShoppingCart /></el-icon>
            采购入库
          </el-button>

          <el-button type="success" size="large" @click="handleNav('/material/index')">
            <el-icon style="margin-right: 5px"><Box /></el-icon>
            基础信息
          </el-button>

          <el-button type="warning" size="large" @click="handleNav('/operation/borrow')">
            <el-icon style="margin-right: 5px"><Operation /></el-icon>
            借库申请
          </el-button>
        </div>
      </div>
    </el-card>
  </div>
</template>

<script setup lang="ts">
import { useRouter } from 'vue-router'
// 1. 引入 User Store
import { useUserStore } from '@/stores/user'
// 引入需要的图标
import { Box, TrendCharts, ShoppingCart, Operation } from '@element-plus/icons-vue'

const router = useRouter()
// 2. 实例化 store
const userStore = useUserStore()

// 统一跳转函数
const handleNav = (path: string) => {
  router.push(path)
}
</script>

<style scoped>
.dashboard-container {
  /* 使用 100% 宽度和高度，利用 Flex 居中显示 */
  height: calc(100vh - 84px); /* 减去顶部导航栏的高度，防止出现双滚动条 */
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #f0f2f5; /* 给背景加个淡灰色，突出卡片 */
}

.welcome-card {
  width: 800px; /*稍微加宽一点 */
  text-align: center;
  border-radius: 8px; /* 圆角更好看 */
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.title {
  font-size: 18px;
  font-weight: bold;
  color: #303133;
}

.card-body {
  padding: 20px 0;
}

.card-body h2 {
  font-size: 28px;
  color: #409EFF; /* 使用主题蓝 */
  margin-bottom: 10px;
}

.subtitle {
  color: #909399;
  margin-bottom: 40px;
  font-size: 14px;
}

.action-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap; /* 防止屏幕过窄时按钮挤压 */
}

/* 给按钮加一点悬浮效果 */
.el-button {
  transition: all 0.3s;
}
.el-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
</style>