import { IsString, IsOptional, IsEnum, IsArray } from "class-validator";

/**
 * Export format enum
 */
export enum ExportFormat {
  MARKDOWN = "markdown",
  JSON = "json",
}

/**
 * DTO for export query parameters
 */
export class ExportQueryDto {
  @IsOptional()
  @IsEnum(ExportFormat, { message: "format must be either 'markdown' or 'json'" })
  format?: ExportFormat = ExportFormat.MARKDOWN;

  @IsOptional()
  @IsArray({ message: "entryIds must be an array" })
  @IsString({ each: true, message: "each entryId must be a string" })
  entryIds?: string[];
}

/**
 * Import result for a single entry
 */
export interface ImportResult {
  filename: string;
  success: boolean;
  entryId?: string;
  slug?: string;
  title?: string;
  error?: string;
}

/**
 * Response DTO for import operation
 */
export interface ImportResponseDto {
  success: boolean;
  totalFiles: number;
  imported: number;
  failed: number;
  results: ImportResult[];
}