import {
  Controller,
  Get,
  Post,
  Body,
  Patch,
  Param,
  Delete,
  UseGuards,
  UsePipes,
  ValidationPipe,
  Res,
  HttpStatus,
  Query,
  NotFoundException,
  BadRequestException,
  Headers,
} from '@nestjs/common';
import { FaqsService } from './faqs.service';
import { CreateFaqDto } from './dto/create-faq.dto';
import { UpdateFaqDto } from './dto/update-faq.dto';
import { AuthMiddleware } from 'src/common/middleware/auth.middleware';
import {
  errorResponse,
  successResponse,
  validationErrorMessage,
} from 'src/common/errors/response-config';
import { Response as ExpressResponse } from 'express';
import { lan } from 'src/lan';

@Controller('faqs')
export class FaqsController {
  constructor(private readonly faqsService: FaqsService) {}

  @Post()
  @UseGuards(AuthMiddleware)
  @UsePipes(
    new ValidationPipe({
      exceptionFactory: validationErrorMessage,
      transform: true,
      transformOptions: {
        enableImplicitConversion: true,
      },
    }),
  )
  async create(
    @Body() createFaqDto: CreateFaqDto,
    @Res() res: ExpressResponse,
  ) {
    try {
      await this.faqsService.create(createFaqDto);
      res.send(successResponse(201, lan('common.request_submitted')));
    } catch (error) {
      res
        .status(HttpStatus.INTERNAL_SERVER_ERROR)
        .send(errorResponse(500, lan('common.internal_server_error'), error));
    }
  }

  @Get()
  @UseGuards(AuthMiddleware)
  async findAll(
    @Query('page') page: number,
    @Query('limit') limit: number,
    @Res() res: ExpressResponse,
    @Headers() headers: any,
  ) {
    try {
      const faq = await this.faqsService.findAll(page, limit, headers);

      if (faq) {
        res
          .status(HttpStatus.OK)
          .send(
            successResponse(
              200,
              lan('common.data_retrieved_successfully'),
              faq,
            ),
          );
      }
    } catch (error) {
      res
        .status(HttpStatus.INTERNAL_SERVER_ERROR)
        .send(errorResponse(500, lan('common.internal_server_error'), error));
    }
  }

  @Get(':id')
  @UseGuards(AuthMiddleware)
  async findOne(@Param('id') id: string, @Res() res: ExpressResponse) {
    try {
      const faq = await this.faqsService.findOne(id);

      if (faq) {
        res
          .status(HttpStatus.OK)
          .send(
            successResponse(
              200,
              lan('common.data_retrieved_successfully'),
              faq,
            ),
          );
      }
    } catch (error) {
      if (
        error instanceof NotFoundException ||
        error instanceof BadRequestException
      ) {
        res
          .status(HttpStatus.BAD_REQUEST)
          .send(errorResponse(404, error.message));
      } else {
        res
          .status(HttpStatus.INTERNAL_SERVER_ERROR)
          .send(errorResponse(500, lan('common.internal_server_error'), error));
      }
    }
  }

  @Patch(':id')
  @UseGuards(AuthMiddleware)
  async update(
    @Param('id') id: string,
    @Body() updateFaqDto: UpdateFaqDto,
    @Res() res: ExpressResponse,
  ) {
    try {
      await this.faqsService.update(id, updateFaqDto);

      res
        .status(HttpStatus.OK)
        .send(successResponse(200, lan('common.data_updated')));
    } catch (error) {
      if (
        error instanceof NotFoundException ||
        error instanceof BadRequestException
      ) {
        res
          .status(HttpStatus.BAD_REQUEST)
          .send(errorResponse(404, error.message));
      } else {
        res
          .status(HttpStatus.INTERNAL_SERVER_ERROR)
          .send(errorResponse(500, lan('common.internal_server_error'), error));
      }
    }
  }

  @Delete(':id')
  @UseGuards(AuthMiddleware)
  async remove(@Param('id') id: string, @Res() res: ExpressResponse) {
    try {
      await this.faqsService.remove(id);
      res
        .status(HttpStatus.OK)
        .send(successResponse(200, lan('common.data_deleted')));
    } catch (error) {
      if (
        error instanceof NotFoundException ||
        error instanceof BadRequestException
      ) {
        res
          .status(HttpStatus.BAD_REQUEST)
          .send(errorResponse(404, error.message));
      } else {
        res
          .status(HttpStatus.INTERNAL_SERVER_ERROR)
          .send(errorResponse(500, lan('common.internal_server_error'), error));
      }
    }
  }
}