/*
 * SPDX-FileCopyrightText: Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 *
 * 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.
 */
#ifndef NVIDIA_GXF_TEST_EXTENSIONS_TENSOR_GENERATOR_HPP_
#define NVIDIA_GXF_TEST_EXTENSIONS_TENSOR_GENERATOR_HPP_

#include <random>
#include <string>
#include <vector>

#include "gxf/std/allocator.hpp"
#include "gxf/std/codelet.hpp"
#include "gxf/std/transmitter.hpp"

namespace nvidia {
namespace gxf {
namespace test {

// Creates a random tensor message with a timestamp
class TensorGenerator : public Codelet {
 public:
  // Type for tensor contents
  using DataType = float;

  gxf_result_t registerInterface(Registrar* registrar) override;
  gxf_result_t initialize() override { return GXF_SUCCESS; }
  gxf_result_t deinitialize() override { return GXF_SUCCESS; }

  gxf_result_t start() override { return GXF_SUCCESS; }
  gxf_result_t tick() override;
  gxf_result_t stop() override { return GXF_SUCCESS; }

 private:
  // Output message
  Parameter<Handle<Transmitter>> output_;
  // Memory allocator
  Parameter<Handle<Allocator>> allocator_;
  // Tensor shape
  Parameter<std::vector<int32_t>> shape_;
  // Tensor storage type
  Parameter<int32_t> storage_type_;
  // Flag to enable timestamps
  Parameter<bool> enable_timestamps_;
  // Name of the tensor in the generated message
  Parameter<std::string> tensor_name_;
  // Name of the timestamp in the generated message
  Parameter<std::string> timestamp_name_;
  // Number of tensors to be generated in the message
  Parameter<int32_t> number_of_tensors_;
  // Random number generator
  std::default_random_engine generator_;
};

}  // namespace test
}  // namespace gxf
}  // namespace nvidia

#endif  // NVIDIA_GXF_TEST_EXTENSIONS_TENSOR_GENERATOR_HPP_
