import { ChatSessionMetadata } from '@theia/ai-chat';
import * as React from '@theia/core/shared/react';
export interface SectionedSessions {
    active: ChatSessionMetadata[];
    restored: ChatSessionMetadata[];
}
/** A session row with its optional child sessions. */
export interface SessionRow {
    session: ChatSessionMetadata;
    isRestored: boolean;
    childSessions: SessionRow[];
}
/**
 * The id of a session's immediate parent for tree building. Falls back to the root session id for
 * sessions persisted before immediate-parent tracking existed, so their hierarchy still renders
 * (flat under the root, as before).
 */
export declare function parentIdOf(session: ChatSessionMetadata): string | undefined;
export interface VisibleSessionSlots {
    activeCount: number;
    restoredCount: number;
}
/**
 * Allocates the capped number of visible items between the Active and Restored sections of the
 * overview. When both sections are non-empty, up to {@link RESTORED_MIN_RESERVATION} slots are
 * reserved for Restored so active sessions cannot crowd it out entirely. A cap of 0 hides the
 * inline list (every session stays reachable via the "Browse all chats..." link).
 */
export declare function computeVisibleSessionSlots(activeTotal: number, restoredTotal: number, maxSessions: number): VisibleSessionSlots;
export interface SessionsListProps {
    rows: SessionRow[];
    /** Total cap on items shown; overflow surfaces via the Browse all link. Defaults to no cap. */
    maxSessions?: number;
    renderRow: (row: SessionRow) => React.ReactNode;
    onBrowseAll?: () => void;
}
export declare function SessionsList({ rows, maxSessions, renderRow, onBrowseAll }: SessionsListProps): React.ReactElement;
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