// Copyright (c) 2021 PaddlePaddle Authors. 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.

#pragma once

#include <map>
#include <string>
#include <vector>
#include "onnx.h"
#include "opencv2/core.hpp"
#include "opencv2/imgproc.hpp"
#include "options.h"
#include "shared.h"
#include "utils.h"

struct DetectionPreprocessResult {
  ImageRaw model_input {};
  cv::Mat resized_image {};
};

using DetectionResultData = std::vector<std::vector<std::vector<int>>>;

struct DetectionResult {
  DetectionResultData data {};
  ModelPerformance performance {};
};

class DetectionPredictor {
public:
  explicit DetectionPredictor(Options &options);

  DetectionResult predict(const cv::Mat &source_image);

private:
  Options m_options {};

  Onnx m_onnx;

  DetectionPreprocessResult preprocess(const cv::Mat &image);

  DetectionResultData postprocess(ModelOutput &model_output, const cv::Mat &source_image, const cv::Mat &resized_image,
                                  Options &options);
};