import { IsOptional, IsNumber, Min, Max } from 'class-validator'; import { ApiPropertyOptional } from '@nestjs/swagger'; import { Type } from 'class-transformer'; export class FindSchedulesDto { @IsOptional() @Type(() => Number) @IsNumber() @Min(0) @Max(6) @ApiPropertyOptional({ description: 'Filter by week days (0=Sunday, 6=Saturday)', type: Number, }) weekDay?: number; }