import { useUploadStatusStore } from '../store/uploadStatusStore';
import { UploadStatus } from '../uploadStatus.types';

interface UploadProgressState {
  status: UploadStatus;
  error?: string;
  attemptCount: number;
  memoId?: string;
  isUploading: boolean;
  isPending: boolean;
  isFailed: boolean;
  isSuccess: boolean;
}

/**
 * Hook to track upload status for a specific audio file using Zustand subscriptions.
 * No polling - updates automatically when upload status changes.
 * Safe from memory leaks as Zustand handles subscription cleanup.
 *
 * @param audioFileId - The ID of the audio file being uploaded
 * @returns Upload state with status, error, and boolean helpers
 */
export function useUploadProgress(audioFileId: string | undefined): UploadProgressState {
  // Subscribe directly to Zustand store - no manual cleanup needed
  const status = useUploadStatusStore((state) =>
    audioFileId ? state.getStatus(audioFileId) : UploadStatus.SUCCESS
  );

  const metadata = useUploadStatusStore((state) =>
    audioFileId ? state.getMetadata(audioFileId) : undefined
  );

  return {
    status,
    error: metadata?.lastError,
    attemptCount: metadata?.attemptCount || 0,
    memoId: metadata?.memoId,
    isUploading: status === UploadStatus.UPLOADING,
    isPending: status === UploadStatus.PENDING,
    isFailed: status === UploadStatus.FAILED,
    isSuccess: status === UploadStatus.SUCCESS,
  };
}