import { ConversionJob } from '@prisma/client';

/**
 * Contract between the shared conversion worker and the import pipeline, kept in
 * its own module so neither imports the other's file (the worker resolves the
 * processor lazily via this token, breaking what would otherwise be a cycle:
 * import.service → conversion-job.service → conversion-worker.service).
 */
export const IMPORT_PROCESSOR = Symbol('IMPORT_PROCESSOR');

export interface ImportProcessor {
  /** Run one import job to completion, recording the created page on the job or
   * throwing a ConversionError for the worker's retry/fail policy. */
  run(job: ConversionJob): Promise<void>;
}

/** True for a job the import pipeline processes rather than the plain pandoc
 * byte→byte path (export, #62/#65). */
export function isImportKind(kind: string): boolean {
  return kind.startsWith('import_');
}