//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//

#pragma once

#include "LayerWithParameters.hpp"

namespace armnn
{

class ScopedCpuTensorHandle;

/// This layer represents a detection postprocess operator.
class DetectionPostProcessLayer : public LayerWithParameters<DetectionPostProcessDescriptor>
{
public:
    /// A unique pointer to store Anchor values.
    std::unique_ptr<ScopedCpuTensorHandle> m_Anchors;

    /// Makes a workload for the DetectionPostProcess type.
    /// @param [in] graph The graph where this layer can be found.
    /// @param [in] factory The workload factory which will create the workload.
    /// @return A pointer to the created workload, or nullptr if not created.
    virtual std::unique_ptr<IWorkload> CreateWorkload(const Graph& graph,
                                                      const IWorkloadFactory& factory) const override;

    /// Creates a dynamically-allocated copy of this layer.
    /// @param [in] graph The graph into which this layer is being cloned.
    DetectionPostProcessLayer* Clone(Graph& graph) const override;

    /// Check if the input tensor shape(s)
    /// will lead to a valid configuration of @ref DetectionPostProcessLayer.
    void ValidateTensorShapesFromInputs() override;

    void Accept(ILayerVisitor& visitor) const override;

protected:
    /// Constructor to create a DetectionPostProcessLayer.
    /// @param [in] param DetectionPostProcessDescriptor to configure the detection postprocess.
    /// @param [in] name Optional name for the layer.
    DetectionPostProcessLayer(const DetectionPostProcessDescriptor& param, const char* name);

    /// Default destructor
    ~DetectionPostProcessLayer() = default;

    /// Retrieve the handles to the constant values stored by the layer.
    /// @return A vector of the constant tensors stored by this layer.
    ConstantTensors GetConstantTensorsByRef() override;
};

} // namespace armnn