import { CueAuth } from './auth';
import { ReadonlySignal } from './signal';
import { ProcessingStatus } from './models';
export interface ProcessingStatusWatcher {
    /** Live pipeline status for the watched project; `undefined` until the first message arrives. */
    status: ReadonlySignal<ProcessingStatus | undefined>;
    /** Stops the subscription and closes the underlying WebSocket. */
    close(): void;
}
/**
 * Live pipeline-progress status, pushed by the `accessors-data-views`
 * processing-status WebSocket. Backs the upload modal and project-settings
 * "processing" indicators in the portal.
 */
export declare class CueProcessingApi {
    private readonly _auth;
    private readonly _gatewayUrl;
    constructor(_auth: CueAuth, _gatewayUrl: string);
    /**
     * Opens a live subscription to a project's pipeline status. Reconnects
     * automatically (with a fixed delay) if the connection drops, until `close()`
     * is called.
     */
    watchStatus(projectId: string): ProcessingStatusWatcher;
}