<template>
  <!-- 移动端布局 -->
  <div v-if="isMobile" class="mobile-product-category">
    <!-- 搜索操作栏 -->
    <div class="mobile-header">
      <div class="mobile-header__search">
        <el-input v-model="queryParams.name" placeholder="搜索分类名称" clearable @keyup.enter="handleQuery" :prefix-icon="Search" />
      </div>
      <div class="mobile-header__actions">
        <el-button :icon="Filter" circle @click="filterVisible = true" />
        <el-button type="primary" :icon="Plus" circle @click="openForm('create')" v-hasPermi="['erp:product-category:create']" />
      </div>
    </div>

    <!-- 快捷操作 -->
    <div class="mobile-quick-actions">
      <el-button size="small" type="success" plain @click="handleExport" :loading="exportLoading" v-hasPermi="['erp:product-category:export']">导出</el-button>
      <el-button size="small" type="danger" plain @click="toggleExpandAll">{{ isExpandAll ? '折叠' : '展开' }}</el-button>
    </div>

    <!-- 卡片列表 -->
    <div class="mobile-list" v-loading="loading">
      <div v-if="list.length === 0 && !loading" class="mobile-empty">
        <el-empty description="暂无产品分类" />
      </div>
      <div v-for="item in flatList" :key="item.id" class="mobile-card" @click="handleCardClick(item)" :style="{ marginLeft: (item.level || 0) * 12 + 'px' }">
        <div class="mobile-card__header">
          <span class="mobile-card__name">
            <span v-if="item.level > 0" class="mobile-card__indent">└─</span>
            {{ item.name || '-' }}
          </span>
          <dict-tag :type="DICT_TYPE.COMMON_STATUS" :value="item.status" />
        </div>
        <div class="mobile-card__body">
          <div class="mobile-card__row">
            <span class="mobile-card__label">编码</span>
            <span class="mobile-card__value">{{ item.code || '-' }}</span>
          </div>
          <div class="mobile-card__row">
            <span class="mobile-card__label">排序</span>
            <span class="mobile-card__value">{{ item.sort || '-' }}</span>
          </div>
          <div class="mobile-card__row">
            <span class="mobile-card__label">创建时间</span>
            <span class="mobile-card__value">{{ formatDate(item.createTime) }}</span>
          </div>
        </div>
        <div class="mobile-card__footer">
          <el-button size="small" type="primary" @click.stop="openForm('update', item.id)" v-hasPermi="['erp:product-category:update']">编辑</el-button>
          <el-button size="small" type="danger" @click.stop="handleDelete(item.id)" v-hasPermi="['erp:product-category:delete']">删除</el-button>
        </div>
      </div>
    </div>

    <!-- 筛选抽屉 -->
    <el-drawer v-model="filterVisible" title="筛选条件" direction="btt" size="50%">
      <el-form :model="queryParams" ref="queryFormRef" label-position="top">
        <el-form-item label="开启状态" prop="status">
          <el-select v-model="queryParams.status" placeholder="请选择开启状态" clearable style="width:100%">
            <el-option
              v-for="dict in getIntDictOptions(DICT_TYPE.COMMON_STATUS)"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
            />
          </el-select>
        </el-form-item>
      </el-form>
      <template #footer>
        <el-button @click="resetQuery">重置</el-button>
        <el-button type="primary" @click="handleFilterConfirm">确认筛选</el-button>
      </template>
    </el-drawer>
  </div>

  <!-- PC端布局 -->
  <template v-else>
    <ContentWrap>
      <!-- 搜索工作栏 -->
      <el-form class="-mb-15px" :model="queryParams" ref="queryFormRef" :inline="true" label-width="68px">
        <el-form-item label="分类名称" prop="name">
          <el-input v-model="queryParams.name" placeholder="请输入分类名称" clearable @keyup.enter="handleQuery" class="!w-240px" />
        </el-form-item>
        <el-form-item label="开启状态" prop="status">
          <el-select v-model="queryParams.status" placeholder="请选择开启状态" clearable class="!w-240px">
            <el-option v-for="dict in getIntDictOptions(DICT_TYPE.COMMON_STATUS)" :key="dict.value" :label="dict.label" :value="dict.value" />
          </el-select>
        </el-form-item>
        <el-form-item>
          <el-button @click="handleQuery"><Icon icon="ep:search" class="mr-5px" /> 搜索</el-button>
          <el-button @click="resetQuery"><Icon icon="ep:refresh" class="mr-5px" /> 重置</el-button>
          <el-button type="primary" plain @click="openForm('create')" v-hasPermi="['erp:product-category:create']">
            <Icon icon="ep:plus" class="mr-5px" /> 新增
          </el-button>
          <el-button type="success" plain @click="handleExport" :loading="exportLoading" v-hasPermi="['erp:product-category:export']">
            <Icon icon="ep:download" class="mr-5px" /> 导出
          </el-button>
          <el-button type="danger" plain @click="toggleExpandAll">
            <Icon icon="ep:sort" class="mr-5px" /> 展开/折叠
          </el-button>
        </el-form-item>
      </el-form>
    </ContentWrap>

    <!-- 列表 -->
    <ContentWrap>
      <el-table v-loading="loading" :data="list" :stripe="true" :show-overflow-tooltip="true" row-key="id" :default-expand-all="isExpandAll" v-if="refreshTable" @row-click="handleRowClick">
        <el-table-column label="编码" align="center" prop="code" />
        <el-table-column label="名称" align="center" prop="name" />
        <el-table-column label="排序" align="center" prop="sort" />
        <el-table-column label="状态" align="center" prop="status">
          <template #default="scope">
            <dict-tag :type="DICT_TYPE.COMMON_STATUS" :value="scope.row.status" />
          </template>
        </el-table-column>
        <el-table-column label="创建时间" align="center" prop="createTime" :formatter="dateFormatter" width="180px" sortable />
        <el-table-column label="操作" align="center">
          <template #default="scope">
            <el-button link type="primary" @click="openForm('update', scope.row.id)" v-hasPermi="['erp:product-category:update']">编辑</el-button>
            <el-button link type="danger" @click="handleDelete(scope.row.id)" v-hasPermi="['erp:product-category:delete']">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
    </ContentWrap>
  </template>

  <!-- 表单弹窗：添加/修改 -->
  <ProductCategoryForm ref="formRef" @success="getList" />
</template>

<script setup lang="ts">
import { computed } from 'vue'
import { Search, Filter, Plus } from '@element-plus/icons-vue'
import { getIntDictOptions, DICT_TYPE } from '@/utils/dict'
import { dateFormatter } from '@/utils/formatTime'
import { handleTree } from '@/utils/tree'
import download from '@/utils/download'
import { ProductCategoryApi, ProductCategoryVO } from '@/api/erp/product/category'
import ProductCategoryForm from './ProductCategoryForm.vue'
import { useWindowSize } from '@vueuse/core'

/** ERP 产品分类 列表 */
defineOptions({ name: 'ErpProductCategory' })

const { width } = useWindowSize()
const isMobile = computed(() => width.value < 768)

const message = useMessage() // 消息弹窗
const { t } = useI18n() // 国际化

const loading = ref(true) // 列表的加载中
const list = ref<ProductCategoryVO[]>([]) // 列表的数据
const flatList = ref<ProductCategoryVO[]>([]) // 扁平化列表
const filterVisible = ref(false) // 筛选抽屉
const queryParams = reactive({
  name: undefined,
  status: undefined
})
const queryFormRef = ref() // 搜索的表单
const exportLoading = ref(false) // 导出的加载中

/** 查询列表 */
const getList = async () => {
  loading.value = true
  try {
    const data = await ProductCategoryApi.getProductCategoryList(queryParams)
    list.value = handleTree(data, 'id', 'parentId')
    flattenTree()
  } finally {
    loading.value = false
  }
}

/** 扁平化树形结构 */
const flattenTree = () => {
  const result: any[] = []
  const flatten = (nodes: any[], level = 0) => {
    nodes.forEach(node => {
      result.push({ ...node, level })
      if (node.children && node.children.length > 0 && isExpandAll.value) {
        flatten(node.children, level + 1)
      }
    })
  }
  flatten(list.value)
  flatList.value = result
}

/** 搜索按钮操作 */
const handleQuery = () => {
  queryParams.pageNo = 1
  getList()
}

/** 重置按钮操作 */
const resetQuery = () => {
  queryFormRef.value?.resetFields()
  handleQuery()
}

/** 筛选确认 */
const handleFilterConfirm = () => {
  filterVisible.value = false
  handleQuery()
}

/** 添加/修改操作 */
const formRef = ref()
const openForm = (type: string, id?: number) => {
  formRef.value.open(type, id)
}

/** 卡片点击 */
const handleCardClick = (row: ProductCategoryVO) => {
  openForm('update', row.id)
}

/** 格式化日期 */
const formatDate = (date: any) => {
  if (!date) return '-'
  return dateFormatter({ cellValue: date })
}
/** 删除按钮操作 */
const handleDelete = async (id: number) => {
  try {
    // 删除的二次确认
    await message.delConfirm()
    // 发起删除
    await ProductCategoryApi.deleteProductCategory(id)
    message.success(t('common.delSuccess'))
    // 刷新列表
    await getList()
  } catch {}
}

/** 导出按钮操作 */
const handleExport = async () => {
  try {
    // 导出的二次确认
    await message.exportConfirm()
    // 发起导出
    exportLoading.value = true
    const data = await ProductCategoryApi.exportProductCategory(queryParams)
    download.excel(data, '产品分类.xls')
  } catch {
  } finally {
    exportLoading.value = false
  }
}

/** 展开/折叠操作 */
const isExpandAll = ref(true) // 是否展开，默认全部展开
const refreshTable = ref(true) // PC端重新渲染表格状态
const toggleExpandAll = async () => {
  isExpandAll.value = !isExpandAll.value
  // 移动端
  flattenTree()
  // PC端
  refreshTable.value = false
  await nextTick()
  refreshTable.value = true
}

/** PC端行点击操作 */
const handleRowClick = (row: ProductCategoryVO) => {
  openForm('update', row.id)
}

/** 初始化 **/
onMounted(() => {
  getList()
})
</script>

<style lang="scss" scoped>
.mobile-product-category {
  padding: 12px;
  background: #f5f5f5;
  min-height: 100vh;
}
.mobile-header {
  display: flex; gap: 8px; align-items: center; margin-bottom: 12px;
  &__search { flex: 1; }
  &__actions { display: flex; gap: 4px; flex-shrink: 0; }
}
.mobile-quick-actions {
  display: flex; gap: 8px; margin-bottom: 12px;
}
.mobile-list { display: flex; flex-direction: column; gap: 10px; }
.mobile-empty { padding: 40px 0; }
.mobile-card {
  background: #fff; border-radius: 10px; padding: 14px; box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  &__header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
  &__name { font-weight: 600; font-size: 15px; color: #303133; }
  &__indent { color: #909399; margin-right: 4px; }
  &__body { font-size: 13px; }
  &__row { display: flex; justify-content: space-between; padding: 3px 0; }
  &__label { color: #909399; flex-shrink: 0; margin-right: 12px; }
  &__value { color: #606266; text-align: right; }
  &__footer { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; padding-top: 10px; border-top: 1px solid #f0f0f0; }
}
</style>
