Heartbeat.h

#pragma once

#include <stdint.h>

class Heartbeat {
public:
    static const uint16_t NormalOnMs =      50;
    static const uint16_t NormalOffMs =     450;
    static const uint16_t QuickOnMs =       25;
    static const uint16_t QuickOffMs =      125;
    static const uint16_t QuickerOnMs =     25;
    static const uint16_t QuickerOffMs =    25;
    static const uint16_t SlowOnMs =        50;
    static const uint16_t SlowOffMs =       950;
    static const uint16_t SlowerOnMs =      50;
    static const uint16_t SlowerOffMs =     1950;

public:
    enum Mode {
        Normal=0, 
        Quick,    
        Quicker,  
        Slow,     
        Slower,   
        Off,      
        On,       
        Custom    
    };

    typedef struct {
        Mode mode;
        uint16_t onTime;
        uint16_t offTime;
    } Times;

    Heartbeat(const uint8_t pin, const bool invertedLogic=false);
    ~Heartbeat();

    void begin();

    Mode mode();

    void setMode(Mode mode);

    void setMode(Times times);

    void setCustomMode(uint16_t onTime, uint16_t offTime);

    void update();

    void setEnabled(bool on=true);

    Times times();

private:
    void updatePin(bool state);

private:
    Mode _mode;
    const uint8_t _pin;
    const bool _invertedLogic;
    bool _pinState;
    uint32_t _lastStateFlip;
    uint16_t _onTime;
    uint16_t _offTime;
    bool _enabled;

};