ChainableShiftRegisterOutput.h

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#pragma once

#include "Libraries/Treehopper.Libraries.h"
#include "Libraries/IO/Flushable.h"
#include "Spi.h"
#include "SpiDevice.h"
#include <vector>

namespace Treehopper {
    namespace Libraries {
        namespace IO {
            namespace PortExpander {

                class LIBRARIES_API ChainableShiftRegisterOutput : Flushable {
                public:
                    ChainableShiftRegisterOutput(Spi &spiModule, SpiChipSelectPin *latchPin, int numBytes = 1,
                                                 double speedMhz = 5, SpiMode mode = SpiMode::Mode00,
                                                 ChipSelectMode csMode = ChipSelectMode::PulseHighAtEnd);

                    ChainableShiftRegisterOutput(ChainableShiftRegisterOutput &upstreamDevice, int numBytes = 1);

                    void write(uint8_t *value);

                    void flush(bool force = false);


                    uint8_t *currentValue;

                    int numBytes;
                protected:
                    void flushIfAutoFlushEnabled();

                    virtual void updateFromCurrentValue() = 0;

                    static void requestWrite();

                private:
                    void setupSpi(Spi &spiModule, SpiChipSelectPin *latchPin, double speedMhz, SpiMode mode,
                                  ChipSelectMode csMode);

                    uint8_t *lastValues;
                    static SpiDevice *spiDevice;
                    static vector<ChainableShiftRegisterOutput *> shiftRegisters;
                };
            }
        }
    }
}