import {
  IsString,
  IsNumber,
  IsBoolean,
  IsOptional,
  IsEnum,
  IsDateString,
  IsArray,
  IsUUID,
  Min,
  Max,
  Length,
} from 'class-validator';
import { PromotionType } from '../entities/promotion.entity';

export class CreatePromotionDto {
  @IsString()
  @Length(2, 100)
  name: string;

  @IsString()
  @Length(2, 50)
  code: string;

  @IsOptional()
  @IsString()
  description?: string;

  @IsEnum(PromotionType)
  type: PromotionType;

  @IsNumber()
  @Min(0)
  value: number;

  @IsOptional()
  @IsNumber()
  @Min(0)
  minPurchaseAmount?: number;

  @IsOptional()
  @IsNumber()
  @Min(0)
  maxDiscount?: number;

  @IsOptional()
  @IsNumber()
  @Min(1)
  usageLimit?: number;

  @IsOptional()
  @IsNumber()
  @Min(1)
  perUserLimit?: number;

  @IsDateString()
  startsAt: string;

  @IsDateString()
  endsAt: string;

  @IsOptional()
  @IsBoolean()
  isActive?: boolean;

  @IsOptional()
  @IsArray()
  @IsUUID('4', { each: true })
  applicablePackageIds?: string[];
}

export class UpdatePromotionDto {
  @IsOptional()
  @IsString()
  @Length(2, 100)
  name?: string;

  @IsOptional()
  @IsString()
  description?: string;

  @IsOptional()
  @IsNumber()
  @Min(0)
  value?: number;

  @IsOptional()
  @IsNumber()
  @Min(0)
  minPurchaseAmount?: number;

  @IsOptional()
  @IsNumber()
  @Min(0)
  maxDiscount?: number;

  @IsOptional()
  @IsNumber()
  @Min(1)
  usageLimit?: number;

  @IsOptional()
  @IsNumber()
  @Min(1)
  perUserLimit?: number;

  @IsOptional()
  @IsDateString()
  startsAt?: string;

  @IsOptional()
  @IsDateString()
  endsAt?: string;

  @IsOptional()
  @IsBoolean()
  isActive?: boolean;

  @IsOptional()
  @IsArray()
  @IsUUID('4', { each: true })
  applicablePackageIds?: string[];
}

export class ValidatePromoCodeDto {
  @IsString()
  code: string;

  @IsOptional()
  @IsUUID()
  packageId?: string;

  @IsOptional()
  @IsNumber()
  @Min(0)
  purchaseAmount?: number;
}