feat: 异步解析大文件WPS报备资料

api/src/report-materials/workbook-compatibility.spec.ts

@@ -1,6 +1,11 @@
 import ExcelJS from 'exceljs';
 import JSZip from 'jszip';
-import { compatibleImages, convertWorkbookOutput, loadCompatibleWorkbook } from './workbook-compatibility';
+import {
+  compatibleImagePositions,
+  compatibleImages,
+  convertWorkbookOutput,
+  loadCompatibleWorkbook,
+} from './workbook-compatibility';
 
 const PNG = Buffer.from(
   'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8/x8AAusB9Y9ZrYQAAAAASUVORK5CYII=',
@@ -39,4 +44,15 @@ describe('WPS workbook compatibility', () => {
     const content = Buffer.from(await workbook.xlsx.writeBuffer());
     await expect(loadCompatibleWorkbook(content)).rejects.toThrow('不允许的公式');
   });
+
+  it('reads WPS image positions without inflating image buffers during analysis', async () => {
+    const converted = await convertWorkbookOutput(await standardWorkbook(), 'wps_cell_image');
+    const loaded = await loadCompatibleWorkbook(converted, { includeImageData: false });
+    const wpsImage = loaded.wpsImagesBySheet.get('签名报备')?.[0];
+    expect(wpsImage).toMatchObject({ row: 2, column: 1, extension: 'png', size: PNG.length });
+    expect(wpsImage).not.toHaveProperty('buffer');
+    expect(
+      compatibleImagePositions(loaded.workbook, loaded.workbook.getWorksheet('签名报备')!, loaded.wpsImagesBySheet),
+    ).toEqual([{ row: 2, column: 1 }]);
+  });
 });