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#ifndef __CONTROLS_H__

#define __CONTROLS_H__

#include <inttypes.h>

#include <avr/pgmspace.h>

class StateMachine

{

    static StateMachine    *currentState;

protected:

    virtual bool OnInitialState() { return true; };

public:

    static void SetState(StateMachine *state) { currentState = state;  currentState->OnInitialState(); };

    static StateMachine* GetState() { return StateMachine::currentState; };

};

class ControlEvents : public StateMachine

{

public:

    virtual bool OnEncoderChanged(int8_t value) { return true; };

    virtual bool OnEncButtonUp()   { return true; };

    virtual bool OnEncButtonDown() { return true; };

    virtual bool OnExtButtonUp()   { return true; };

    virtual bool OnExtButtonDown() { return true; };

};

#define  GPIN_ENCODER_MASK    0x03

#define  GPIN_ENC_BUT_MASK    0x08

#define  GPIN_EXT_BUT_MASK    0x10

#define  GPIN_ENC_BUT_MASK    0x04

#define GPIN_EXT_BUT_MASK   0x08

typedef uint8_t ControlStates;

class GPInRegister

{

    ControlStates    controlStates;

    MAX3421E        *pMax;

    int8_t          encoderValue;

public:

    GPInRegister(MAX3421E *pmax) : controlStates(GPIN_ENCODER_MASK | GPIN_ENC_BUT_MASK | GPIN_EXT_BUT_MASK), pMax(pMax), encoderValue(0) {};

    void CheckControls();

};

#endif // __CONTROLS_H__