BasaltMeter/BasaltPresenter/Presenter/command_client.hpp

#pragma once
#include <basalt/pipe_operator.hpp>
#include <cstdint>

namespace Basalt::Presenter {

    // Protocol codes
    enum class ProtocolCode : std::uint8_t {
        HANDSHAKE_REQUEST = 0x61,  //< Trainer -> Presenter
        HANDSHAKE_RESPONSE = 0x62, //< Presenter -> Trainer
        DATA_READY = 0x01,         //< Presenter -> Trainer
        DATA_RECEIVED = 0x02,      //< Trainer -> Presenter
        STOP_REQUEST = 0x71,       //< Both directions
        STOP = 0x71                //< Both directions (same code)
    };

    // Pixel kind values
    enum class PixelKind : std::uint8_t {
        GRAY_FLOAT32 = 0x01, ///< Grayscale represented by one float32
        GRAY_U8 = 0x02,      ///< Grayscale represented by one u8
        RGB_FLOAT32 = 0x03,  ///< RGB represented by three float32
        RGB_U8 = 0x04        ///< RGB represented by three u8
    };

#pragma pack(push, 1)
    struct HandshakePayload {
        PixelKind pixel_kind;
        std::uint32_t width;
        std::uint32_t height;
    };
#pragma pack(pop)

    // Status
    enum class ClientStatus {
        Ready,
        Running,
        Stop,
    };

    class CommandClient {
    public:
        CommandClient();
        ~CommandClient();

    public:
        // Wait for handshake from Trainer, send response with data properties
        HandshakePayload WaitHandshake();
        // Tick function called every frame to send data ready and wait for response
        bool Tick(bool actively_stop = false);

    private:
        Shared::PipeOperator m_PipeOperator;
        ClientStatus m_Status;
    };

} // namespace Basalt::Presenter