// Copyright 2015 Google Inc. All rights reserved.
//
// 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 <AVFoundation/AVFoundation.h>
#import <UIKit/UIKit.h>

#include <memory>
#include "tensorflow/core/public/session.h"
#include "tensorflow/core/util/memmapped_file_system.h"

@interface CameraExampleViewController
    : UIViewController<UIGestureRecognizerDelegate,
                       AVCaptureVideoDataOutputSampleBufferDelegate> {
  IBOutlet UIView *previewView;
  IBOutlet UISegmentedControl *camerasControl;
  AVCaptureVideoPreviewLayer *previewLayer;
  AVCaptureVideoDataOutput *videoDataOutput;
  dispatch_queue_t videoDataOutputQueue;
  AVCaptureStillImageOutput *stillImageOutput;
  UIView *flashView;
  UIImage *square;
  BOOL isUsingFrontFacingCamera;
  AVSpeechSynthesizer *synth;
  NSMutableDictionary *oldPredictionValues;
  NSMutableArray *labelLayers;
  AVCaptureSession *session;
  std::unique_ptr<tensorflow::Session> tf_session;
  std::unique_ptr<tensorflow::MemmappedEnv> tf_memmapped_env;
  std::vector<std::string> labels;
}
@property(retain, nonatomic) CATextLayer *predictionTextLayer;

- (IBAction)takePicture:(id)sender;
- (IBAction)switchCameras:(id)sender;

@end
