import { type RoomClipboard } from './store';
/** Another same-origin editor tab with a map open, discovered over BroadcastChannel. */
export interface PeerInfo {
    tabId: string;
    fileName: string;
    roomCount: number;
}
/** Rooms sent over from another tab, waiting for the user to place them. */
export interface IncomingRooms {
    fromFileName: string;
    clipboard: RoomClipboard;
}
/** Broadcast this tab's current map (or lack of one) to the other tabs. */
export declare function announceSelf(): void;
/** Ask every tab to re-announce — used to refresh names/counts when the context menu opens. */
export declare function refreshPeers(): void;
/** Send a room snapshot to another tab. The receiver acks the transfer; if no ack
 *  arrives within the timeout the peer is presumed gone and dropped from the list.
 *  Outcome is reported via the status bar. */
export declare function sendRoomsToPeer(peer: PeerInfo, clipboard: RoomClipboard): void;
/** Open the cross-tab channel. Returns a cleanup that says goodbye and closes it. */
export declare function initPeers(): () => void;