import { BundleInfo, BundleView, Connection } from "./typedefs";
import { HasMap } from "./HasMap";
export declare class AbstractConnection implements Connection {
    protected listeners: Array<() => void>;
    protected peerHasMap?: HasMap;
    private unacked;
    private unackedChains;
    private hasSentInitialSyncState;
    private hasRecvInitialSyncState;
    private hasSentGreetingState;
    private isReadOnlyState;
    private _ready;
    private onReady;
    constructor();
    get ready(): Promise<void>;
    protected resetAbstractConnection(): void;
    get synced(): boolean;
    get connected(): boolean;
    get isReadOnly(): boolean;
    set isReadOnly(value: boolean);
    get hasSentGreeting(): boolean;
    get hasSentInitialSync(): boolean;
    get hasRecvInitialSync(): boolean;
    markHasSentGreeting(): void;
    markHasSentInitialSync(): void;
    markHasRecvInitialSync(): void;
    get hasSentUnackedData(): boolean;
    onAck(bundleInfo: BundleInfo): void;
    protected notify(): void;
    subscribe(callback: () => void): () => void;
    send(_: Uint8Array): void;
    sendInitialBundlesSent(): void;
    close(): void;
    setPeerHasMap(hasMap?: HasMap): void;
    /**
     * The Message proto contains an embedded one-of.  Essentially this will wrap
     * the bundle bytes payload in a wrapper by prefixing a few bytes to it.
     * In theory the "Message" proto could be expanded with some extra meta
     * (e.g. send time) in the future.
     * Note that the bundle is always passed around as bytes and then
     * parsed as needed to avoid losing unknown fields.
     * @param bundleBytes: the bytes corresponding to a bundle
     * @returns a serialized "Message" proto
     */
    private static makeBundleMessage;
    /**
     * Sends a bundle if we've received a greeting and our internal recordkeeping indicates
     * that the peer could use this particular bundle (but ensures that we're not sending
     * bundles that would cause gaps in the peer's chain.)
     * @param bundleBytes The bundle to be sent.
     * @param bundleInfo Meta about the bundle.
     */
    sendIfNeeded(bundle: BundleView): void;
    onReceivedBundle(bundleInfo: BundleInfo): void;
    private sendAck;
}