zod-backend/src/common/modules/lookup/controllers/lookup.controller.ts

import { BadRequestException, Controller, Get, Req, UseGuards } from '@nestjs/common';
import { ApiBearerAuth, ApiTags } from '@nestjs/swagger';
import { Request } from 'express';
import { AccessTokenGuard } from '~/common/guards';
import { ApiDataArrayResponse, ApiLangRequestHeader } from '~/core/decorators';
import { ResponseFactory } from '~/core/utils';
import { DocumentMetaResponseDto } from '~/document/dtos/response';
import { HelpSupportFaqResponseDto } from '../dtos/response';
import { LookupLanguage } from '../enums';
import { LookupService } from '../services';

@Controller('lookup')
@ApiTags('Lookups')
@ApiBearerAuth()
export class LookupController {
  constructor(private readonly lookupService: LookupService) {}

  @UseGuards(AccessTokenGuard)
  @Get('default-avatars')
  @ApiDataArrayResponse(DocumentMetaResponseDto)
  async findDefaultAvatars() {
    const avatars = await this.lookupService.findDefaultAvatar();

    return ResponseFactory.dataArray(avatars.map((avatar) => new DocumentMetaResponseDto(avatar)));
  }

  @UseGuards(AccessTokenGuard)
  @Get('default-task-logos')
  @ApiDataArrayResponse(DocumentMetaResponseDto)
  async findDefaultTaskLogos() {
    const avatars = await this.lookupService.findDefaultTasksLogo();

    return ResponseFactory.dataArray(avatars.map((avatar) => new DocumentMetaResponseDto(avatar)));
  }

  @UseGuards(AccessTokenGuard)
  @Get('help-support-faqs')
  @ApiDataArrayResponse(HelpSupportFaqResponseDto)
  @ApiLangRequestHeader()
  getHelpSupportFaqs(@Req() request: Request) {
    const header = request.headers['accept-language'];
    const lang = Array.isArray(header) ? header[0] : header;
    const normalized = (lang || '').trim().toLowerCase();

    if (normalized && normalized !== LookupLanguage.EN && normalized !== LookupLanguage.AR) {
      throw new BadRequestException('Accept-Language must be "en" or "ar".');
    }

    const faqs = this.lookupService.getHelpSupportFaqs(
      normalized === LookupLanguage.AR ? LookupLanguage.AR : LookupLanguage.EN,
    );

    return ResponseFactory.dataArray(faqs);
  }
}