/**
 * @license
 * Copyright 2022-2026 Matter.js Authors
 * SPDX-License-Identifier: Apache-2.0
 */
import { Fabric } from "@matter/protocol";
import { EndpointNumber, FabricIndex, GroupId } from "@matter/types";
import { GroupKeyManagement } from "@matter/types/clusters/group-key-management";
declare const GroupKeyManagementBase: import("./GroupKeyManagementBehavior.js").GroupKeyManagementBehaviorConstructor;
/**
 * This is the default server implementation of {@link GroupKeyManagementBehavior}.
 */
export declare class GroupKeyManagementServer extends GroupKeyManagementBase {
    #private;
    readonly state: GroupKeyManagementServer.State;
    static readonly schema: import("@matter/model").ClusterModel;
    initialize(): void;
    keySetWrite({ groupKeySet }: GroupKeyManagement.KeySetWriteRequest): Promise<void>;
    keySetRead({ groupKeySetId }: GroupKeyManagement.KeySetReadRequest): GroupKeyManagement.KeySetReadResponse;
    keySetRemove({ groupKeySetId }: GroupKeyManagement.KeySetRemoveRequest): void;
    keySetReadAllIndices(): GroupKeyManagement.KeySetReadAllIndicesResponse;
    addEndpointForGroup(fabric: Fabric, groupId: GroupId, endpointId: EndpointNumber, groupName: string): void;
    /**
     * Remove endpoint from the provided group, or all groups if no groupId is provided.
     */
    removeEndpoint(fabric: Fabric, endpointId: EndpointNumber, groupId?: GroupId): boolean;
    /**
     * Returns whether a GroupKeySetId exists for a given fabric. Called by GroupcastServer to validate KeySetIDs.
     */
    validateKeySetId(fabricIndex: FabricIndex, keySetId: number): boolean;
    /**
     * Creates a new GroupKeySet for a Groupcast group key, bypassing normal KeySetWrite validation.
     * Used by GroupcastServer when JoinGroup or UpdateGroupKey is called with a `key` parameter.
     * The key set uses TrustFirst policy and epochStartTime0=IPK_DEFAULT_EPOCH_START_TIME (Matter epoch zero = Jan 1, 2000).
     *
     * @returns true on success, throws if the key set already exists or resources are exhausted
     */
    createKeySetForGroupcast(fabric: Fabric, keySetId: number, epochKey0: Uint8Array): Promise<void>;
    setGroupcastAdopted(fabricIndex: FabricIndex, adopted: boolean): void;
}
export declare namespace GroupKeyManagementServer {
    class State extends GroupKeyManagementBase.State {
        /**
         * Extended state to hold and persist the group key sets for this server. This structure contains all
         * GroupKeySet entries for all fabrics beside the fabric specific entries of the groupKeyset 0
         */
        groupKeySets: (GroupKeyManagement.GroupKeySet & {
            fabricIndex: FabricIndex;
        })[];
        maxGroupKeysPerFabric: number;
        maxGroupsPerFabric: number;
        /**
         * Per-fabric Groupcast adoption state (provisional Matter 1.6 GCAST feature).  Only present when the Groupcast
         * feature is enabled; the default server rejects it while provisional.
         */
        groupcastAdoption?: GroupKeyManagement.GroupcastAdoption[];
    }
}
export {};
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