import { ApiProperty, ApiPropertyOptional } from '@nestjs/swagger';
import { Type } from 'class-transformer';
import {
  IsInt,
  IsNotEmpty,
  IsOptional,
  IsString,
  Max,
  MaxLength,
  Min,
} from 'class-validator';

export class CreateNewsDto {
  @ApiProperty({ description: '分类ID' })
  @IsInt()
  @Min(1)
  @Type(() => Number)
  categoryId: number;

  @ApiProperty({ description: '新闻标题' })
  @IsString()
  @IsNotEmpty({ message: '标题不能为空' })
  @MaxLength(200)
  title: string;

  @ApiPropertyOptional({ description: '封面图' })
  @IsString()
  @IsOptional()
  cover?: string;

  @ApiPropertyOptional({ description: '简介' })
  @IsString()
  @IsOptional()
  @MaxLength(500)
  intro?: string;

  @ApiProperty({ description: '正文富文本' })
  @IsString()
  @IsNotEmpty({ message: '正文不能为空' })
  content: string;

  @ApiPropertyOptional({ description: '是否置顶 1是0否', default: 0 })
  @IsInt()
  @Min(0)
  @Max(1)
  @IsOptional()
  @Type(() => Number)
  isTop?: number;

  @ApiPropertyOptional({ description: '状态 1发布 0草稿', default: 1 })
  @IsInt()
  @Min(0)
  @Max(1)
  @IsOptional()
  @Type(() => Number)
  status?: number;
}

export class UpdateNewsDto extends CreateNewsDto {}

export class QueryNewsDto {
  @ApiPropertyOptional({ description: '页码', default: 1 })
  @IsInt()
  @Min(1)
  @IsOptional()
  @Type(() => Number)
  page?: number;

  @ApiPropertyOptional({ description: '每页数量', default: 10 })
  @IsInt()
  @Min(1)
  @Max(100)
  @IsOptional()
  @Type(() => Number)
  pageSize?: number;

  @ApiPropertyOptional({ description: '分类ID' })
  @IsInt()
  @IsOptional()
  @Type(() => Number)
  categoryId?: number;

  @ApiPropertyOptional({ description: '关键词（标题）' })
  @IsString()
  @IsOptional()
  keyword?: string;
}