import type { TaskId } from "../domain/task";
export declare const TASK_SESSION_ENTRY_TYPE = "todu-current-task";
export interface TaskSessionState {
    currentTaskId: TaskId | null;
}
export interface TaskSessionEntryData {
    currentTaskId: TaskId | null;
}
export interface TaskSessionStateListener {
    (state: TaskSessionState): void;
}
export interface TaskSessionEntryLike {
    type: string;
    customType?: string;
    data?: unknown;
}
export interface TaskSessionStore {
    getState(): TaskSessionState;
    replaceState(state: TaskSessionState): void;
    setCurrentTask(taskId: TaskId | null): void;
    clearCurrentTask(): void;
    subscribe(listener: TaskSessionStateListener): {
        unsubscribe(): void;
    };
}
declare const createTaskSessionState: (overrides?: Partial<TaskSessionState>) => TaskSessionState;
declare const restoreTaskSessionState: (entries: readonly TaskSessionEntryLike[]) => TaskSessionState;
declare const persistTaskSessionState: (appendEntry: (customType: string, data?: TaskSessionEntryData) => void, state: TaskSessionState) => void;
declare const createInMemoryTaskSessionStore: (initialState?: Partial<TaskSessionState>) => TaskSessionStore;
export { createInMemoryTaskSessionStore, createTaskSessionState, persistTaskSessionState, restoreTaskSessionState, };