import { Controller, Get, Post, Body, Patch, Param, Delete, Query, UseGuards } from '@nestjs/common';
import { ApiBearerAuth, ApiTags, ApiParam, ApiQuery } from '@nestjs/swagger';
import { EmployeeService } from './employee.service';
import { CreateEmployeeDto } from './dto/create-employee.dto';
import { UpdateEmployeeDto } from './dto/update-employee.dto';
import { JwtAuthGuard } from '../auth/jwt-auth.guard';

const parseJson = <T>(value?: string): T | undefined => {
  if (!value) return undefined;
  try { return JSON.parse(value) as T; } catch { return undefined; }
};

@ApiTags('employee')
@ApiBearerAuth()
@UseGuards(JwtAuthGuard)
@Controller('employee')
export class EmployeeController {
  constructor(private readonly employeeService: EmployeeService) {}

  @Get()
  findAll(
    @Query('skip') skip?: string,
    @Query('take') take?: string,
    @Query('orderBy') orderBy?: string,
    @Query('where') where?: string,
  ) {
    return this.employeeService.findAll({
      skip: skip ? Number(skip) : 0,
      take: take ? Number(take) : 25,
      orderBy: parseJson(orderBy),
      where: parseJson(where),
    });
  }

  @Get(':code')
  @ApiParam({ name: 'code', type: String })
  findOne(@Param('code') code: string) {
    return this.employeeService.findOne({ code });
  }

  @Post()
  create(@Body() dto: CreateEmployeeDto) {
    return this.employeeService.create(dto);
  }

  @Patch(':code')
  @ApiParam({ name: 'code', type: String })
  update(@Param('code') code: string, @Body() dto: UpdateEmployeeDto) {
    return this.employeeService.update({ where: { code }, data: dto });
  }

  @Delete(':code')
  @ApiParam({ name: 'code', type: String })
  remove(@Param('code') code: string) {
    return this.employeeService.remove({ code });
  }
}