import type { SessionTimelineItem } from '../../session/transcript-outline.js';
import { TaskConversationRepository } from '../../tasks/task-conversation-repository.js';
import type { GatewaySessionsApi } from './sessions-api.js';
export declare class TaskConversationQueryService {
    #private;
    private readonly sessions;
    private readonly conversations;
    constructor(sessions: Pick<GatewaySessionsApi, 'getMessagePage' | 'getTimeline'>, conversations?: Pick<TaskConversationRepository, 'listSessions'>);
    getMessagePage(taskId: string, options: {
        limit: number;
        offset: number;
        before?: number;
    }): Promise<{
        session: {
            messages: import("../../session/types.js").Message[];
            transcriptSummary?: import("../../session/types.js").SessionTranscriptSummary;
            transcriptRows?: import("../../session/session-context-for-llm.js").TranscriptStoredRow[];
            key: string;
            name?: string;
            status: import("../../session/types.js").SessionStatus;
            tags: string[];
            createdAt: string;
            updatedAt: string;
            lastAccessedAt: string;
            messageCount: number;
            estimatedTokens: number;
            compactedCount: number;
            lastFlushedAt?: string;
            flushCount?: number;
            sourceChannel: string;
            sourceChatId: string;
            customData?: Record<string, unknown>;
            projectId?: string;
            routing?: import("../../session/types.js").SessionRoutingMeta;
            stats?: import("../../session/types.js").SessionStats;
            sessionType: import("../../session/types.js").SessionType;
            hiddenFromSessionList?: boolean;
            parentSessionKey?: string;
            workflowRunId?: string;
            workflowDefinitionId?: string;
            workflowAgentId?: string;
            workflowAgentLabel?: string;
            sessionId?: string;
            cwd?: string;
            sessionStartedAt?: string;
            lastInteractionAt?: string;
        };
        pagination: {
            nextBeforeCursor?: string;
            before?: string;
            total: number;
            limit: number;
            offset: number;
            hasMore: boolean;
        };
    }>;
    getTimeline(taskId: string): Promise<SessionTimelineItem[] | null>;
}