import type { StudioChatMode, StudioEvent, StudioPermissionMode, StudioRunAction, StudioSession, StudioSessionMode } from "./types.js";
export interface StudioSessionIndexEntry {
    id: string;
    conversationId?: string;
    turnIndex?: number;
    goal?: string;
    model?: string | null;
    effort?: string | null;
    harness: string;
    action: StudioRunAction;
    mode?: StudioSessionMode;
    chatMode?: StudioChatMode;
    permissionMode?: StudioPermissionMode;
    cwd: string;
    prompt: string;
    status: StudioSession["status"];
    startedAt: string;
    completedAt: string | null;
    exitCode: number | null;
    eventCount: number;
    updatedAt: string;
}
export declare class StudioSessionStore {
    private readonly root;
    private index;
    constructor(projectRoot: string);
    init(): void;
    appendEvent(session: StudioSession, event: StudioEvent): void;
    upsertSession(session: StudioSession): void;
    listSessions(): StudioSessionIndexEntry[];
    getSession(sessionId: string): StudioSessionIndexEntry | null;
    readSessionEvents(sessionId: string, options?: {
        limit?: number;
    }): StudioEvent[];
    get indexedSessionCount(): number;
    private eventLogPath;
    private get sessionsDir();
    private get indexPath();
    private flushIndex;
    private finalizeAbandonedRunningSessions;
}