import { Transform } from 'class-transformer';
import {
  IsBoolean,
  IsISO8601,
  IsInt,
  IsOptional,
  IsString,
  IsUUID,
  Max,
  MaxLength,
  Min,
  MinLength,
} from 'class-validator';

export class CreateInventoryFunctionDto {
  @Transform(({ value }) => typeof value === 'string' ? value.trim().toUpperCase().replace(/[^A-Z0-9]+/g, '_').replace(/^_+|_+$/g, '') : value)
  @IsString()
  @MinLength(2)
  @MaxLength(120)
  code!: string;

  @Transform(({ value }) => typeof value === 'string' ? value.trim() : value)
  @IsString()
  @MinLength(2)
  @MaxLength(240)
  name!: string;

  @IsOptional()
  @Transform(({ value }) => typeof value === 'string' && value.trim() ? value.trim() : null)
  @IsString()
  @MaxLength(4000)
  description?: string | null;

  @IsOptional()
  @IsInt()
  @Min(0)
  @Max(100000)
  sortOrder?: number;
}

export class UpdateInventoryFunctionDto {
  @IsOptional()
  @Transform(({ value }) => typeof value === 'string' ? value.trim() : value)
  @IsString()
  @MinLength(2)
  @MaxLength(240)
  name?: string;

  @IsOptional()
  @Transform(({ value }) => typeof value === 'string' && value.trim() ? value.trim() : null)
  @IsString()
  @MaxLength(4000)
  description?: string | null;

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

  @IsOptional()
  @IsInt()
  @Min(0)
  @Max(100000)
  sortOrder?: number;
}

export class ChangeInventoryFunctionDto {
  @IsUUID('4')
  functionId!: string;

  @IsOptional()
  @IsISO8601({ strict: true })
  effectiveAt?: string;

  @IsOptional()
  @Transform(({ value }) => typeof value === 'string' && value.trim() ? value.trim() : null)
  @IsString()
  @MaxLength(4000)
  reason?: string | null;
}