import { Attempt, StoredAttempt, EventName } from "./data/Attempt";
import { StoredSessionMetadata, SessionMetadata } from "./data/SessionMetadata";
import { SessionUUID } from "./UUID";
import { Storage } from "./storage/Storage";
export interface StatSnapshot {
    latest100: StoredAttempt[];
    mean3: number | null;
    avg5: number | null;
    avg12: number | null;
    avg100: number | null;
    best100: number | null;
    worst100: number | null;
    avg1000?: number;
    best1000?: number;
    worst1000?: number;
}
export declare type StatListener = (statsSnapshot: StatSnapshot) => void;
interface StubSessionMetadata extends SessionMetadata {
    _id: SessionUUID;
}
export interface SessionCreationOptions {
    stub?: boolean;
}
export declare class Session implements SessionMetadata {
    #private;
    constructor(storage: Storage, metadata: StubSessionMetadata | StoredSessionMetadata, options?: SessionCreationOptions);
    static create(storage: Storage, name: string, event: EventName, options?: SessionCreationOptions): Promise<Session>;
    get _id(): SessionUUID;
    get name(): SessionUUID;
    get eventID(): SessionUUID;
    private onSyncChange;
    getStatSnapshot(): Promise<StatSnapshot>;
    addStatListener(listener: StatListener): void;
    removeStatListener(listener: StatListener): void;
    private fireStatListeners;
    private ensurePersisted;
    add(attempt: Attempt): Promise<StoredAttempt>;
    update(storedAttempt: StoredAttempt): Promise<void>;
    delete(storedAttempt: StoredAttempt): Promise<void>;
    kthMostRecent(k: number): Promise<StoredAttempt | null>;
    nMostRecent(n: number): Promise<StoredAttempt[]>;
    numAttempts(): Promise<number>;
    /******** Debug ********/
    private debugPouch;
    private debugCache;
}
export {};
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