import { IsString, IsOptional, IsArray, IsUrl } from 'class-validator';
import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';

export class CreateTrainingMaterialDto {
  @ApiProperty({ description: 'Training material title' })
  @IsString()
  title: string;

  @ApiProperty({ description: 'Training material description' })
  @IsString()
  description: string;

  @ApiProperty({ description: 'Training material file URL' })
  @IsUrl()
  fileUrl: string;

  @ApiPropertyOptional({ description: 'Training material tags', type: [String] })
  @IsArray()
  @IsString({ each: true })
  @IsOptional()
  tags?: string[];
}