import { Type } from 'class-transformer';
import {
  IsInt,
  IsNumber,
  IsOptional,
  IsString,
  MaxLength,
  Min,
  MinLength,
  ValidateIf,
} from 'class-validator';

export class CreateLoyaltyTierDto {
  @IsString()
  @MinLength(2)
  @MaxLength(80)
  name!: string;

  @Type(() => Number)
  @IsInt()
  @Min(0)
  minPoints!: number;

  @IsOptional()
  @ValidateIf((_, v) => v !== '' && v != null)
  @IsString()
  @MaxLength(32)
  color?: string | null;
}

export class UpdateLoyaltyTierDto {
  @IsOptional()
  @IsString()
  @MinLength(2)
  @MaxLength(80)
  name?: string;

  @IsOptional()
  @Type(() => Number)
  @IsInt()
  @Min(0)
  minPoints?: number;

  @IsOptional()
  @ValidateIf((_, v) => v !== '' && v != null)
  @IsString()
  @MaxLength(32)
  color?: string | null;
}

export class AdjustLoyaltyPointsDto {
  @Type(() => Number)
  @IsNumber()
  delta!: number;

  @IsOptional()
  @IsString()
  @MaxLength(200)
  reason?: string;
}