import { ApiPropertyOptional } from '@nestjs/swagger';
import { CouponStatus, CouponValueType } from '@prisma/client';
import { IsEnum, IsInt, IsOptional, IsString, Max, Min } from 'class-validator';

export class UpdateCouponDto {
  @ApiPropertyOptional({ example: 'Summer Sale 20%' })
  @IsOptional()
  @IsString()
  title?: string;

  @ApiPropertyOptional()
  @IsOptional()
  @IsString()
  shortDescription?: string;

  @ApiPropertyOptional()
  @IsOptional()
  @IsString()
  longDescription?: string;

  @ApiPropertyOptional({
    example: 100,
    description: 'Cashi coins required to claim this coupon',
  })
  @IsOptional()
  @IsInt()
  @Min(0)
  cashiCoinsCost?: number | null;

  @ApiPropertyOptional({
    example: 100,
    description: '[Deprecated] Use cashiCoinsCost',
  })
  @IsOptional()
  @IsInt()
  @Min(0)
  cashiPointsCost?: number | null;

  @ApiPropertyOptional({ enum: CouponValueType })
  @IsOptional()
  @IsEnum(CouponValueType)
  valueType?: CouponValueType;

  @ApiPropertyOptional({ example: 100 })
  @IsOptional()
  @IsInt()
  @Min(0)
  valueFixed?: number | null;

  @ApiPropertyOptional({ example: 20 })
  @IsOptional()
  @Min(0)
  @Max(100)
  valuePercent?: number | null;

  @ApiPropertyOptional({ example: 500 })
  @IsOptional()
  @IsInt()
  @Min(0)
  minOrderValue?: number | null;

  @ApiPropertyOptional({ example: 100 })
  @IsOptional()
  @IsInt()
  @Min(0)
  totalCoupons?: number | null;

  @ApiPropertyOptional({ example: 10 })
  @IsOptional()
  @IsInt()
  @Min(5)
  @Max(30)
  distributionBid?: number | null;

  @ApiPropertyOptional({ enum: CouponStatus })
  @IsOptional()
  @IsEnum(CouponStatus)
  status?: CouponStatus;

  @ApiPropertyOptional({ example: '2026-04-01T00:00:00.000Z' })
  @IsOptional()
  activeAt?: string | null;

  @ApiPropertyOptional({ example: '2026-05-01T00:00:00.000Z' })
  @IsOptional()
  expiresAt?: string | null;

  @ApiPropertyOptional({ description: 'Design JSON from designer' })
  @IsOptional()
  design?: unknown | null;

  @ApiPropertyOptional({
    description:
      'Rendered coupon image (URL or data URL). Used when status is ACTIVE',
  })
  @IsOptional()
  @IsString()
  imageUrl?: string | null;
}