feat: redesign report batch workflow

api/src/report-materials/report-materials.controller.ts

@@ -16,6 +16,7 @@ import { ApiTags } from '@nestjs/swagger';
 import { RequireRecentAuthentication } from '../auth/require-recent-authentication.decorator';
 import { CurrentSessionUserId } from '../auth/current-session-user.decorator';
 import { ReportMaterialsService } from './report-materials.service';
+import { ReportBatchDownloadService } from './batch-download.service';
 import {
   CreateImportProfileDto,
   CreateReportBatchDto,
@@ -30,7 +31,10 @@ type DownloadResponse = { setHeader(name: string, value: string): void; send(con
 @ApiTags('report-materials')
 @Controller('admin/report-materials')
 export class ReportMaterialsController {
-  constructor(private readonly service: ReportMaterialsService) {}
+  constructor(
+    private readonly service: ReportMaterialsService,
+    private readonly batchDownloads: ReportBatchDownloadService,
+  ) {}
 
   @Get('pending')
   listPending(
@@ -156,6 +160,16 @@ export class ReportMaterialsController {
     return this.service.listBatches({ keyword, startAt, endAt, page: Number(page), pageSize: Number(pageSize) });
   }
 
+  @Get('batches/:id/download')
+  async downloadBatch(@Param('id') id: string, @Res() response: DownloadResponse) {
+    this.sendDownload(response, await this.batchDownloads.exportBundle(await this.service.getBatch(id)));
+  }
+
+  @Get('batches/:id/files/:fileId/download')
+  async downloadBatchFile(@Param('id') id: string, @Param('fileId') fileId: string, @Res() response: DownloadResponse) {
+    this.sendDownload(response, await this.batchDownloads.exportFile(await this.service.getBatch(id), fileId));
+  }
+
   @Get('batches/:id')
   getBatch(@Param('id') id: string) {
     return this.service.getBatch(id);
@@ -212,4 +226,13 @@ export class ReportMaterialsController {
     response.setHeader('Content-Disposition', `attachment; filename*=UTF-8''${encodeURIComponent(exported.fileName)}`);
     response.send(exported.content);
   }
+
+  private sendDownload(
+    response: DownloadResponse,
+    exported: { fileName: string; contentType: string; content: Buffer },
+  ) {
+    response.setHeader('Content-Type', exported.contentType);
+    response.setHeader('Content-Disposition', `attachment; filename*=UTF-8''${encodeURIComponent(exported.fileName)}`);
+    response.send(exported.content);
+  }
 }