把文件中的页面使用Composition API重构要求用vue2完成并详细到每个方法

为了将文件中的代码从Options API重构为Composition API，并保持Vue 2的支持，我们可以使用`@vue/composition-api`插件。以下是详细的重构步骤和代码：

### 安装依赖
首先，需要安装`@vue/composition-api`插件：

npm install @vue/composition-api

### 主要更改点
1. **引入 Composition API**：在组件中引入`setup`函数和其他Composition API相关的钩子。
2. **状态管理**：使用`reactive`或`ref`来声明响应式数据。
3. **生命周期钩子**：使用相应的Composition API钩子，如`onMounted`、`onCreated`等。
4. **方法提取**：将原有的方法提取到`setup`函数中。

### 重构后的代码

<template>
  <a-spin :spinning="spinning" tip="报表同步中，请稍等">
    <a-card :bordered="false">
      <!-- 查询区域 -->
      <div class="table-page-search-wrapper">
        <a-form layout="inline" @keyup.enter.native="searchQuery">
          <a-row :gutter="24">
            <a-col>
              <my-fast-date-picker
                :radioList="[{ value: 2, text: '月' }, { value: 3, text: '年' }]"
                :radioVal="2"
                :currName="'近半年'"
                :showRadioGroup="true"
                :fastTime="fastTime"
                @change="change"
              >
                <template v-slot:text>时间：</template>
              </my-fast-date-picker>
            </a-col>
            <template v-if="toggleSearchStatus">
              <a-col :xl="6" :lg="7" :md="8" :sm="24">
                <a-form-item label="项目编号：">
                  <a-input placeholder="请输入项目编号" allowClear v-model="queryParam.projectCode" />
                </a-form-item>
              </a-col>
              <a-col :xl="6" :lg="7" :md="8" :sm="24">
                <a-form-item label="项目名称">
                  <a-select
                    allowClear
                    show-search
                    v-model="queryParam.projectName_Code"
                    placeholder="请输入项目名称"
                    style="width: 100%"
                    :show-arrow="false"
                    :filter-option="false"
                    :not-found-content="null"
                    @search="projectCodeSearch"
                    @change="projectCodeChange"
                  >
                    <a-select-option v-for="d in projectNameList" :key="d.id">
                      {{ d.text }}
                    </a-select-option>
                  </a-select>
                </a-form-item>
              </a-col>
              <a-col :xl="6" :lg="7" :md="8" :sm="24">
                <a-form-item label="物资">
                  <a-input placeholder="请输入物资编号/名称" allowClear v-model="queryParam.keyWord" />
                </a-form-item>
              </a-col>
              <a-col :xl="6" :lg="7" :md="8" :sm="24">
                <a-form-item label="厂商">
                  <j-search-select-tag
                    placeholder="请选择厂商"
                    v-model="queryParam.producerId"
                    dict="biz_product_vendor,abbreviation,id,del_flag = 0 and status = 1"
                  />
                </a-form-item>
              </a-col>
              <a-col :xl="6" :lg="7" :md="8" :sm="24">
                <a-form-item label="规格型号">
                  <a-input placeholder="请输入规格型号" allowClear v-model="queryParam.specification" />
                </a-form-item>
              </a-col>
            </template>
            <a-col :xl="6" :lg="7" :md="8" :sm="24">
              <span style="float: left; overflow: hidden;" class="table-page-search-submitButtons">
                <a-button type="primary" @click="searchQuery" icon="search">查询</a-button>
                <a-button type="primary" @click="searchReset" icon="reload" style="margin-left: 8px">重置</a-button>
                <a @click="handleToggleSearch" style="margin-left: 8px">
                  {{ toggleSearchStatus ? '收起' : '展开' }}
                  <a-icon :type="toggleSearchStatus ? 'up' : 'down'" />
                </a>
              </span>
            </a-col>
          </a-row>
        </a-form>
      </div>
      <!-- 查询区域-END -->

      <!-- 操作按钮区域 -->
      <div class="table-operator">
        <div>
          <a-button type="primary" icon="download" @click="handleExportXlsx()">导出</a-button>
        </div>
      </div>

      <!-- table区域-begin -->
      <div>
        <a-table
          ref="table"
          size="middle"
          :scroll="{ x: true }"
          bordered
          rowKey="uniqueId"
          :columns="columns"
          :dataSource="dataSource"
          :pagination="ipagination"
          :loading="loading"
          class="j-table-force-nowrap"
          @change="handleTableChange"
        >
          <span slot="receivingFreezeAmount">
            领用冻结
            <a-tooltip>
              <template slot="title">
                项目领用申请审核通过后，待出库的数量。
              </template>
              <a-icon type="info-circle" />
            </a-tooltip>
          </span>
          <span slot="receivingFreezeAmount_title">
            预算余量
            <a-tooltip>
              <template slot="title">
                预算余量=预算总数-领用冻结-领用总数+领用归还
              </template>
              <a-icon type="info-circle" />
            </a-tooltip>
          </span>
          <span slot="requisitionAmount_title">
            领用总数
            <a-tooltip>
              <template slot="title">
                项目盘盈更新领用余料时，会自动产生领用增补单（不受预算限制），可能导致领用总数超过预算总数。
              </template>
              <a-icon type="info-circle" />
            </a-tooltip>
          </span>
          <span slot="budgetTotalAmount" slot-scope="text, record">
            <a-tooltip>
              <template slot="title">
                <d1v class="tipItem">
                  <div>预算编号</div>
                  <div>预算数</div>
                </d1v>
                <div v-for="(value, key) in record.budgetDetail" class="tipItem" v-show="key !== '小计'">
                  <div>{{ key }}</div>
                  <div>{{ value }}</div>
                </div>
                <div class="tipItem">
                  <div>小记</div>
                  <div>{{ text }}</div>
                </div>
              </template>
              <span style="color: blue">{{ text }}</span>
            </a-tooltip>
          </span>
          <span slot="budgetSurplusAmount" slot-scope="text, record">
            <span :style="{ color: record.budgetSurplusAmount <= projectBudgetMarginWarning ? 'red' : 'black' }">{{ text }}</span>
          </span>
          <span slot="inventoryAmount" slot-scope="text, record">
            <span :style="{ color: record.inventoryAmount <= record.budgetSurplusAmount ? 'red' : 'black' }">{{ text }}</span>
          </span>
        </a-table>
      </div>
    </a-card>
  </a-spin>
</template>

<script>
import { createNamespacedHelpers, reactive, computed, watch, onMounted } from '@vue/composition-api';
import MyFastDatePicker from '@/components/date/MyFastDatePicker';

const { mapActions } = createNamespacedHelpers('someNamespace');

export default {
  name: 'ProjectMaterialStatistics',
  setup(props, context) {
    const state = reactive({
      projectNameList: [],
      projectName_Code: "",
      projectBudgetMarginWarning: 0,
      expandedRowKeys: [],
      workorderProjectList: [],
      description: '营业报表管理页面',
      fastTime: ['本月', '上月', '近半年'],
      noCreate: true,
      hasUpdateTime: true,
      configOrderSubTypeList: [],
      configOrderSubTypeTemp: undefined,
      allDepartList: [],
      hallCodeDataList: [],
      spinning: false,
      checkFlag: true,
      updateTime: '',
      url: {
        list: "/web/projectUseMaterial/list",
        exportXlsxUrl: "/web/projectUseMaterial/export",
        exportPdfUrl: "/web/bizBusinessRecord/exportpdf",
        exportDetailUrl: "/web/bizBusinessRecord/exportDetailExcel",
      },
      keyList: ['saleNum', 'saleName', 'terminalTypeName', 'userTypeName', 'configOrderMainTypeName', 'configOrderSubTypeName'],
      ipagination: {
        current: 1,
        pageSize: 20,
        pageSizeOptions: ['20', '50', '80'],
        showTotal: (total, range) => `${range[0]}-${range[1]} 共 ${total} 条`,
        showQuickJumper: true,
        showSizeChanger: true,
        total: 0
      },
      columns: [
        { title: '项目编号', align: "center", dataIndex: 'projectCode', customRender: (text, row, index) => renderMergedCells1(text, row, index) },
        { title: '项目名称', align: "center", dataIndex: 'projectName', customRender: (text, row, index) => renderMergedCells(text, row, index) },
        { title: '物资编号', align: "center", dataIndex: 'materialCode' },
        { title: '物资名称', align: "center", dataIndex: 'materialName' },
        { title: '厂商', align: "center", dataIndex: 'producerId_dictText' },
        { title: '规格型号', align: "center", dataIndex: 'specification' },
        { title: '单位', align: "center", dataIndex: 'unit' },
        { title: '预算总数', align: "center", dataIndex: 'budgetTotalAmount', scopedSlots: { customRender: 'budgetTotalAmount' } },
        { align: "center", slots: { title: 'receivingFreezeAmount' }, dataIndex: 'receivingFreezeAmount' },
        { align: "center", slots: { title: 'requisitionAmount_title' }, dataIndex: 'receivingTotalAmount' },
        { title: '领用余料', align: "center", dataIndex: 'receivingSurplusAmount' },
        { title: '领料使用', align: "center", dataIndex: 'receivingUseAmount' },
        { align: "center", dataIndex: 'budgetSurplusAmount', slots: { title: 'receivingFreezeAmount_title' }, scopedSlots: { customRender: 'budgetSurplusAmount' } },
        { title: '库存可用数', align: "center", dataIndex: 'inventoryAmount', scopedSlots: { customRender: 'inventoryAmount' } }
      ],
      dataSource: []
    });

    const { commit } = context;

    const queryParam = reactive({
      projectCode: '',
      keyWord: '',
      producerId: '',
      specification: '',
      projectName_Code: '',
      projectName: ''
    });

    const loadData = (page) => {
      // 仿照原逻辑实现
      // 示例调用接口
      // fetch(state.url.list, { page })
      //   .then(response => response.json())
      //   .then(data => {
      //     state.dataSource = data.items;
      //     state.ipagination.total = data.total;
      //   });
    };

    const renderMergedCells = (value, row, index) => {
      const obj = { children: value, attrs: {} };
      if (index === 0 || row.projectName !== state.dataSource[index - 1].projectName) {
        let rowSpan = 1;
        for (let i = index + 1; i < state.dataSource.length; i++) {
          if (state.dataSource[i].projectName === row.projectName) {
            rowSpan++;
          } else {
            break;
          }
        }
        obj.attrs.rowSpan = rowSpan;
      } else {
        obj.attrs.rowSpan = 0;
      }
      return obj;
    };

    const renderMergedCells1 = (value, row, index) => {
      const obj = { children: value, attrs: {} };
      if (index === 0 || row.projectCode !== state.dataSource[index - 1].projectCode) {
        let rowSpan = 1;
        for (let i = index + 1; i < state.dataSource.length; i++) {
          if (state.dataSource[i].projectCode === row.projectCode) {
            rowSpan++;
          } else {
            break;
          }
        }
        obj.attrs.rowSpan = rowSpan;
      } else {
        obj.attrs.rowSpan = 0;
      }
      return obj;
    };

    const projectCodeSearch = (value) => {
      getAction('/web/projectRecord/searchMainProject', { order: 'desc', pageNo: 1, pageSize: 100, keyword: value })
        .then(res => {
          state.projectNameList = res.result.map(item => ({
            id: item.id,
            value: item.projectCode,
            text: item.projectName
          }));
        });
    };

    const projectCodeChange = (value) => {
      const obj = state.projectNameList.find(item => item.id === value);
      queryParam.projectName_Code = value;
      if (obj) {
        commit('setExportParams', { projectName: obj.text });
        queryParam.projectName = obj.text;
      } else {
        commit('setExportParams', { projectName: '' });
        queryParam.projectName = '';
      }
    };

    const change = (val1, val2, val3) => {
      state.exportParams.dateTpye = val3 === 2 ? 1 : 2;
      queryParam.beginDate = val1;
      queryParam.endDate = val2;
      queryParam.hiddenZeroTotalAmountFlag = state.checkFlag ? 1 : 0;
      // loadData(1);
    };

    const handelChange = () => {
      state.configOrderSubTypeTemp = undefined;
      queryParam.configOrderSubType = undefined;
      queryParam.incomeExpenseType = '';
      getConfigOrderSubTypeList();
    };

    const getConfigOrderSubTypeList = () => {
      if (queryParam.configOrderMainType) {
        getAction('/web/bizTransactionOrder/getOrderSubType', { configOrderMainType: queryParam.configOrderMainType })
          .then(res => {
            if (res.code === 200) {
              switch (queryParam.configOrderMainType) {
                case '1':
                  const arr = [];
                  res.result.forEach(v => arr.push([v]));
                  arr.forEach(v => v.push({ value: v[0].value, label: v[0].label + '（退）' }));
                  state.configOrderSubTypeList = arr.flat().filter(v => ![96, 98].includes(Number(v.value)));
                  break;
                case '2':
                  state.configOrderSubTypeList = res.result.filter(v => [1, 2, 3, 4, 5, 6, 7, 15, 16, 20, 21].includes(Number(v.value)));
                  break;
                case '3':
                  state.configOrderSubTypeList = res.result.filter(v => ![7, 8, 10, 12, 14, 16].includes(Number(v.value)));
                  break