import {
  Controller,
  Get,
  HttpException,
  InternalServerErrorException,
  Param,
  UseGuards,
} from "@nestjs/common";
import {
  ApiBearerAuth,
  ApiOperation,
  ApiParam,
  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";
import { InsurerFileReportViewModel } from "./case-expert-report.types";

@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")
  @ApiOperation({
    summary: "Get insurer file report data",
    description:
      "Returns the structured report data for the given publicId (blame + claim combined): damaged owner, driver when different, insurance, vehicle, and accident report sections. The front-end uses this data to render and generate the PDF.",
  })
  @ApiParam({ name: "publicId" })
  @ApiResponse({ status: 200, description: "Report data" })
  @ApiResponse({ status: 404, description: "File not found for this publicId" })
  async getInsurerReport(
    @CurrentUser() insurer: { clientKey?: string },
    @Param("publicId") publicId: string,
  ): Promise<InsurerFileReportViewModel> {
    try {
      return await this.caseExpertReportService.generateForInsurer(
        publicId,
        insurer,
      );
    } catch (error) {
      if (error instanceof HttpException) throw error;
      throw new InternalServerErrorException(
        error instanceof Error
          ? error.message
          : "Failed to retrieve insurer file report data",
      );
    }
  }
}