#pragma once

#include "kompute/Core.hpp"
#include "kompute/operations/OpBase.hpp"
#include "kompute/Tensor.hpp"
#include "kompute/operations/OpBase.hpp"

namespace kp {

/**
 * Operation that syncs tensor's device by mapping local data into the device memory. 
 * For TensorTypes::eDevice it will use a record operation for the memory to be syncd 
 * into GPU memory which means that the operation will be done in sync with GPU commands. 
 * For TensorTypes::eHost it will only map the data into host memory which will 
 * happen during preEval before the recorded commands are dispatched.
*/
class OpTensorSyncDevice : public OpBase
{
  public:
    /**
     * Default constructor with parameters that provides the core vulkan resources 
     * and the tensors that will be used in the operation. The tensos provided cannot 
     * be of type TensorTypes::eStorage.
     *
     * @param tensors Tensors that will be used to create in operation.
     */
    OpTensorSyncDevice(const std::vector<std::shared_ptr<Tensor>>& tensors);

    /**
     * Default destructor. This class does not manage memory so it won't be expecting the parent to perform a release.
     */
    ~OpTensorSyncDevice() override;

    /**
     * For device tensors, it records the copy command for the tensor to copy the 
     * data from its staging to device memory.
     *
     * @param commandBuffer The command buffer to record the command into.
     */
    void record(const vk::CommandBuffer& commandBuffer) override;

    /**
     * Does not perform any preEval commands.
     *
     * @param commandBuffer The command buffer to record the command into.
     */
    virtual void preEval(const vk::CommandBuffer& commandBuffer) override;

    /**
     * Does not perform any postEval commands.
     *
     * @param commandBuffer The command buffer to record the command into.
     */
    virtual void postEval(const vk::CommandBuffer& commandBuffer) override;

  private:
    // -------------- ALWAYS OWNED RESOURCES
    std::vector<std::shared_ptr<Tensor>> mTensors;
};

} // End namespace kp