text: /*
   * Copyright 2017 Google
   *
   * 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 <Foundation/Foundation.h>
  
  #include "Firestore/core/src/firebase/firestore/model/snapshot_version.h"
  
  @class FSTMaybeDocument;
  @class FSTMutationBatch;
  @class FSTQueryData;
  @class FSTSerializerBeta;
  
  @class FSTPBMaybeDocument;
  @class FSTPBTarget;
  @class FSTPBWriteBatch;
  
  @class GPBTimestamp;
  
  NS_ASSUME_NONNULL_BEGIN
  
  /**
   * Serializer for values stored in the LocalStore.
   *
   * Note that FSTLocalSerializer currently delegates to the serializer for the Firestore v1beta1 RPC
   * protocol to save implementation time and code duplication. We'll need to revisit this when the
   * RPC protocol we use diverges from local storage.
   */
  @interface FSTLocalSerializer : NSObject
  
  - (instancetype)initWithRemoteSerializer:(FSTSerializerBeta *)remoteSerializer;
  
  - (instancetype)init NS_UNAVAILABLE;
  
  /** Encodes an FSTMaybeDocument model to the equivalent protocol buffer for local storage. */
  - (FSTPBMaybeDocument *)encodedMaybeDocument:(FSTMaybeDocument *)document;
  
  /** Decodes an FSTPBMaybeDocument proto to the equivalent model. */
  - (FSTMaybeDocument *)decodedMaybeDocument:(FSTPBMaybeDocument *)proto;
  
  /** Encodes an FSTMutationBatch model for local storage in the mutation queue. */
  - (FSTPBWriteBatch *)encodedMutationBatch:(FSTMutationBatch *)batch;
  
  /** Decodes an FSTPBWriteBatch proto into a MutationBatch model. */
  - (FSTMutationBatch *)decodedMutationBatch:(FSTPBWriteBatch *)batch;
  
  /** Encodes an FSTQueryData model for local storage in the query cache. */
  - (FSTPBTarget *)encodedQueryData:(FSTQueryData *)queryData;
  
  /** Decodes an FSTPBTarget proto from local storage into an FSTQueryData model. */
  - (FSTQueryData *)decodedQueryData:(FSTPBTarget *)target;
  
  /** Encodes a SnapshotVersion model into a GPBTimestamp proto. */
  - (GPBTimestamp *)encodedVersion:(const firebase::firestore::model::SnapshotVersion &)version;
  
  /** Decodes a GPBTimestamp proto into a SnapshotVersion model. */
  - (firebase::firestore::model::SnapshotVersion)decodedVersion:(GPBTimestamp *)version;
  
  @end
  
  NS_ASSUME_NONNULL_END
  