import { PageError, PageNotFoundError } from "../../../shared/validators";
import type { PageRepository, PageVersion } from "../models";
import { PageId } from "../models";
/**
* Use case for getting page version information
*/
export class GetPageVersionUseCase {
constructor(private pageRepository: PageRepository) {}
async execute(pageId: string): Promise<PageVersion> {
try {
const id = PageId.fromString(pageId);
// Check if page exists
const exists = await this.pageRepository.exists(id);
if (!exists) {
throw new PageNotFoundError(pageId);
}
return await this.pageRepository.getVersion(id);
} catch (error) {
if (error instanceof PageNotFoundError) {
throw error;
}
throw new PageError(
`Failed to retrieve page version: ${error instanceof Error ? error.message : "Unknown error"}`,
pageId,
error,
);
}
}
}
