import { ApiProperty } from '@nestjs/swagger';
import { IsString, IsNotEmpty, IsNumber, Min, Max, IsEnum, IsOptional, IsBoolean, MaxLength, MinLength } from 'class-validator';
import { ChallengeType } from '../models/challenge.model';

export class CreateCustomChallengeDto {
  @ApiProperty({ description: '挑战标题', example: '21天喝水挑战' })
  @IsString()
  @IsNotEmpty()
  @MaxLength(100)
  title: string;

  @ApiProperty({ description: '挑战类型', enum: ChallengeType, example: ChallengeType.WATER })
  @IsEnum(ChallengeType)
  @IsNotEmpty()
  type: ChallengeType;

  @ApiProperty({ description: '挑战封面图 URL', required: false })
  @IsString()
  @IsOptional()
  @MaxLength(512)
  image?: string;

  @ApiProperty({ description: '开始时间戳（毫秒）', example: 1704067200000 })
  @IsNumber()
  startAt: number;

  @ApiProperty({ description: '结束时间戳（毫秒）', example: 1705881600000 })
  @IsNumber()
  endAt: number;

  @ApiProperty({ description: '每日目标值（如喝水8杯）', example: 8, minimum: 1, maximum: 1000 })
  @IsNumber()
  @Min(1)
  @Max(1000)
  targetValue: number;

  @ApiProperty({ description: '最少打卡天数', example: 21, minimum: 1, maximum: 1000 })
  @IsNumber()
  @Min(1)
  @Max(1000)
  minimumCheckInDays: number;

  @ApiProperty({ description: '持续时间标签', example: '持续21天' })
  @IsString()
  @IsNotEmpty()
  @MaxLength(128)
  durationLabel: string;

  @ApiProperty({ description: '挑战要求标签', example: '每日喝水8杯' })
  @IsString()
  @IsOptional()
  @MaxLength(255)
  requirementLabel: string;

  @ApiProperty({ description: '挑战概要说明', required: false })
  @IsString()
  @IsOptional()
  summary?: string;

  @ApiProperty({ description: '进度单位', example: '天', required: true })
  @IsString()
  @MaxLength(64)
  progressUnit?: string;

  @ApiProperty({ description: '周期标签', example: '21天挑战', required: false })
  @IsString()
  @IsOptional()
  @MaxLength(128)
  periodLabel?: string;

  @ApiProperty({ description: '排行榜描述', example: '连续打卡榜', required: false })
  @IsString()
  @IsOptional()
  @MaxLength(255)
  rankingDescription?: string;


  @ApiProperty({ description: '是否公开（可通过分享码加入）', default: true })
  @IsBoolean()
  @IsOptional()
  isPublic?: boolean;

  @ApiProperty({ description: '最大参与人数限制（null表示无限制）', required: false, minimum: 2, maximum: 10000 })
  @IsNumber()
  @IsOptional()
  @Min(2)
  @Max(10000)
  maxParticipants?: number;
}