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

export class CreateCouponDto {
  @ApiProperty({ example: 'Summer Sale 20%' })
  @IsString()
  title!: string;

  @ApiPropertyOptional({ example: 'Get 20% off on your next order' })
  @IsOptional()
  @IsString()
  shortDescription?: string;

  @ApiPropertyOptional({ example: 'Longer description...' })
  @IsOptional()
  @IsString()
  longDescription?: string;

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

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

  @ApiProperty({ enum: CouponValueType, example: CouponValueType.PERCENTAGE })
  @IsEnum(CouponValueType)
  valueType!: CouponValueType;

  @ApiPropertyOptional({ example: 100, description: 'For FIXED coupons (₹)' })
  @IsOptional()
  @IsInt()
  @Min(0)
  valueFixed?: number;

  @ApiPropertyOptional({
    example: 20,
    description: 'For PERCENTAGE coupons (0-100)',
  })
  @IsOptional()
  @Min(0)
  @Max(100)
  valuePercent?: number;

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

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

  @ApiPropertyOptional({ example: 10, description: 'Distribution bid (5-30)' })
  @IsOptional()
  @IsInt()
  @Min(5)
  @Max(30)
  distributionBid?: number;

  @ApiPropertyOptional({ enum: CouponStatus, example: CouponStatus.DRAFT })
  @IsOptional()
  @IsEnum(CouponStatus)
  status?: CouponStatus;

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

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

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

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