import { ChatService, ChatSession, ChatSessionMetadata } from '@theia/ai-chat';
import { Emitter, Event, ILogger, PreferenceService } from '@theia/core';
import { ApplicationShell } from '@theia/core/lib/browser';
import { UnreadStateProvider } from './chat-session-item';
import { SectionedSessions, SessionRow } from './chat-session-list-components';
export declare class ChatSessionListService implements UnreadStateProvider {
    protected readonly chatService: ChatService;
    protected readonly preferenceService: PreferenceService;
    protected readonly shell: ApplicationShell;
    protected readonly logger: ILogger;
    private readonly unreadSessions;
    private readonly onUnreadChangedEmitter;
    readonly onUnreadChanged: Event<string>;
    protected _persistedSessions: ChatSessionMetadata[];
    /** Expanded root session IDs (default collapsed). */
    protected expandedRoots: Set<string>;
    protected readonly onStateChangedEmitter: Emitter<void>;
    readonly onStateChanged: Event<void>;
    protected init(): void;
    isUnread(sessionId: string): boolean;
    protected watchSession(session: ChatSession): void;
    protected markSessionRead(sessionId: string): void;
    protected unwatchSession(sessionId: string): void;
    private countCompleted;
    isPersistenceEnabled(): boolean;
    protected loadSessions(): Promise<void>;
    getSections(): SectionedSessions;
    toggleExpand(sessionId: string): void;
    isExpanded(sessionId: string): boolean;
    sessionRequiresAction(sessionId: string): boolean;
    descendantRequiresAction(row: SessionRow): boolean;
    protected expandAncestors(session: ChatSession): void;
    buildRows(sections: SectionedSessions): SessionRow[];
}
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