PDF generation

src/case-expert-report/case-expert-report.controller.ts

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+import {
+  Controller,
+  Get,
+  HttpException,
+  InternalServerErrorException,
+  Param,
+  StreamableFile,
+  UseGuards,
+} from "@nestjs/common";
+import {
+  ApiBearerAuth,
+  ApiOperation,
+  ApiParam,
+  ApiProduces,
+  ApiResponse,
+  ApiTags,
+} from "@nestjs/swagger";
+import { LocalActorAuthGuard } from "src/auth/guards/actor-local.guard";
+import { RolesGuard } from "src/auth/guards/role.guard";
+import { Roles } from "src/decorators/roles.decorator";
+import { CurrentUser } from "src/decorators/user.decorator";
+import { RoleEnum } from "src/Types&Enums/role.enum";
+import { CaseExpertReportService } from "./case-expert-report.service";
+
+@ApiTags("expert-insurer-panel")
+@Controller("expert-insurer")
+@ApiBearerAuth()
+@UseGuards(LocalActorAuthGuard, RolesGuard)
+@Roles(RoleEnum.COMPANY)
+export class CaseExpertReportInsurerController {
+  constructor(
+    private readonly caseExpertReportService: CaseExpertReportService,
+  ) {}
+
+  @Get("files/:publicId/report.pdf")
+  @ApiOperation({
+    summary: "Download insurer file report PDF",
+    description:
+      "Generates a PDF for the shared publicId (blame + claim combined): damaged owner, driver when different, insurance, vehicle, and accident report sections.",
+  })
+  @ApiParam({ name: "publicId" })
+  @ApiProduces("application/pdf")
+  @ApiResponse({ status: 200, description: "PDF file" })
+  @ApiResponse({ status: 404, description: "File not found for this publicId" })
+  async downloadInsurerReport(
+    @CurrentUser() insurer: { clientKey?: string },
+    @Param("publicId") publicId: string,
+  ): Promise<StreamableFile> {
+    try {
+      const { buffer, filename } =
+        await this.caseExpertReportService.generateForInsurer(
+          publicId,
+          insurer,
+        );
+      return new StreamableFile(buffer, {
+        type: "application/pdf",
+        disposition: `attachment; filename="${filename}"`,
+      });
+    } catch (error) {
+      if (error instanceof HttpException) throw error;
+      throw new InternalServerErrorException(
+        error instanceof Error
+          ? error.message
+          : "Failed to generate insurer file report PDF",
+      );
+    }
+  }
+}