import {
  IsString,
  IsOptional,
  IsBoolean,
  IsArray,
  IsNumber,
  IsUUID,
  ValidateNested,
  Min,
  Max,
} from 'class-validator';
import { Type } from 'class-transformer';

// ==================== Grade Item DTO ====================

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

  @IsString()
  name: string;

  @IsNumber()
  @Min(0)
  @Max(100)
  minScore: number;

  @IsNumber()
  @Min(0)
  @Max(100)
  maxScore: number;

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

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

// ==================== Grade Config DTOs ====================

export class CreateGradeConfigDto {
  @IsString()
  name: string;

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

  @IsArray()
  @ValidateNested({ each: true })
  @Type(() => GradeItemDto)
  grades: GradeItemDto[];

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

  @IsOptional()
  @IsUUID()
  organizationId?: string;
}

export class UpdateGradeConfigDto {
  @IsOptional()
  @IsString()
  name?: string;

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

  @IsOptional()
  @IsArray()
  @ValidateNested({ each: true })
  @Type(() => GradeItemDto)
  grades?: GradeItemDto[];

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

  @IsOptional()
  @IsUUID()
  organizationId?: string;
}

// ==================== Response DTOs ====================

export class GradeConfigResponseDto {
  id: string;
  name: string;
  description?: string;
  grades: GradeItemDto[];
  isDefault: boolean;
  isActive: boolean;
  createdBy: string;
  createdAt: Date;
  updatedAt: Date;
}