/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { SnapshotVersion } from '../core/snapshot_version';
import { TargetId } from '../core/types';
import { DocumentKeySet, MutableDocumentMap } from '../model/collections';
import { ByteString } from '../util/byte_string';
import { SortedSet } from '../util/sorted_set';
/**
 * An event from the RemoteStore. It is split into targetChanges (changes to the
 * state or the set of documents in our watched targets) and documentUpdates
 * (changes to the actual documents).
 */
export declare class RemoteEvent {
    /**
     * The snapshot version this event brings us up to, or MIN if not set.
     */
    readonly snapshotVersion: SnapshotVersion;
    /**
     * A map from target to changes to the target. See TargetChange.
     */
    readonly targetChanges: Map<TargetId, TargetChange>;
    /**
     * A set of targets that is known to be inconsistent. Listens for these
     * targets should be re-established without resume tokens.
     */
    readonly targetMismatches: SortedSet<TargetId>;
    /**
     * A set of which documents have changed or been deleted, along with the
     * doc's new values (if not deleted).
     */
    readonly documentUpdates: MutableDocumentMap;
    /**
     * A set of which document updates are due only to limbo resolution targets.
     */
    readonly resolvedLimboDocuments: DocumentKeySet;
    constructor(
    /**
     * The snapshot version this event brings us up to, or MIN if not set.
     */
    snapshotVersion: SnapshotVersion, 
    /**
     * A map from target to changes to the target. See TargetChange.
     */
    targetChanges: Map<TargetId, TargetChange>, 
    /**
     * A set of targets that is known to be inconsistent. Listens for these
     * targets should be re-established without resume tokens.
     */
    targetMismatches: SortedSet<TargetId>, 
    /**
     * A set of which documents have changed or been deleted, along with the
     * doc's new values (if not deleted).
     */
    documentUpdates: MutableDocumentMap, 
    /**
     * A set of which document updates are due only to limbo resolution targets.
     */
    resolvedLimboDocuments: DocumentKeySet);
    /**
     * HACK: Views require RemoteEvents in order to determine whether the view is
     * CURRENT, but secondary tabs don't receive remote events. So this method is
     * used to create a synthesized RemoteEvent that can be used to apply a
     * CURRENT status change to a View, for queries executed in a different tab.
     */
    static createSynthesizedRemoteEventForCurrentChange(targetId: TargetId, current: boolean): RemoteEvent;
}
/**
 * A TargetChange specifies the set of changes for a specific target as part of
 * a RemoteEvent. These changes track which documents are added, modified or
 * removed, as well as the target's resume token and whether the target is
 * marked CURRENT.
 * The actual changes *to* documents are not part of the TargetChange since
 * documents may be part of multiple targets.
 */
export declare class TargetChange {
    /**
     * An opaque, server-assigned token that allows watching a query to be resumed
     * after disconnecting without retransmitting all the data that matches the
     * query. The resume token essentially identifies a point in time from which
     * the server should resume sending results.
     */
    readonly resumeToken: ByteString;
    /**
     * The "current" (synced) status of this target. Note that "current"
     * has special meaning in the RPC protocol that implies that a target is
     * both up-to-date and consistent with the rest of the watch stream.
     */
    readonly current: boolean;
    /**
     * The set of documents that were newly assigned to this target as part of
     * this remote event.
     */
    readonly addedDocuments: DocumentKeySet;
    /**
     * The set of documents that were already assigned to this target but received
     * an update during this remote event.
     */
    readonly modifiedDocuments: DocumentKeySet;
    /**
     * The set of documents that were removed from this target as part of this
     * remote event.
     */
    readonly removedDocuments: DocumentKeySet;
    constructor(
    /**
     * An opaque, server-assigned token that allows watching a query to be resumed
     * after disconnecting without retransmitting all the data that matches the
     * query. The resume token essentially identifies a point in time from which
     * the server should resume sending results.
     */
    resumeToken: ByteString, 
    /**
     * The "current" (synced) status of this target. Note that "current"
     * has special meaning in the RPC protocol that implies that a target is
     * both up-to-date and consistent with the rest of the watch stream.
     */
    current: boolean, 
    /**
     * The set of documents that were newly assigned to this target as part of
     * this remote event.
     */
    addedDocuments: DocumentKeySet, 
    /**
     * The set of documents that were already assigned to this target but received
     * an update during this remote event.
     */
    modifiedDocuments: DocumentKeySet, 
    /**
     * The set of documents that were removed from this target as part of this
     * remote event.
     */
    removedDocuments: DocumentKeySet);
    /**
     * This method is used to create a synthesized TargetChanges that can be used to
     * apply a CURRENT status change to a View (for queries executed in a different
     * tab) or for new queries (to raise snapshots with correct CURRENT status).
     */
    static createSynthesizedTargetChangeForCurrentChange(targetId: TargetId, current: boolean): TargetChange;
}