/**
 * A chat's status as the sidebar row shows it (working, needs you, waiting,
 * failed, unread, scheduled, who started it), for the command menu and the
 * Control+Tab switcher. A remembered row only counts while it is known to be
 * current: the sidebar keeps its own workspace's rows live, and other rows
 * are read again when a list opens.
 */
import { type SessionListRow } from "../../../session-list-model.js";
import { type CreatorRef } from "../creator-initials.js";
import { type RailAggregateStatus } from "../sessions-group.js";
import type { ChatRecord } from "./chat-directory.js";
/** How long a row read from the server still describes the chat. */
export declare const CHAT_STATUS_FRESH_MS = 90000;
export type ChatStatus = {
    summary: RailAggregateStatus;
    scheduled: boolean;
    creator: CreatorRef | null;
};
/** Exactly the sidebar row's marker: the chat and everything it started. */
export declare function chatRowStatus(row: SessionListRow, now?: Date): ChatStatus;
/**
 * Whether the record's row says how the chat is now: the sidebar on screen
 * holds it (and keeps it live), or it was read moments ago.
 */
export declare function chatStatusIsCurrent(record: ChatRecord, sidebarIds: ReadonlySet<string>, now: number): boolean;
/** The status to show, or null while it isn't known to be current. */
export declare function currentChatStatus(record: ChatRecord, sidebarIds: ReadonlySet<string>, now: number): ChatStatus | null;