esp8266_milight_hub/lib/MiLight/PacketFormatter.h

#include <Arduino.h>
#include <inttypes.h>
#include <MiLightButtons.h>

#ifndef _PACKET_FORMATTER_H
#define _PACKET_FORMATTER_H 

class PacketFormatter {
public:
  PacketFormatter(const size_t packetLength) 
    : packetLength(packetLength),
      packet(new uint8_t[packetLength])
  { }
  
  ~PacketFormatter() {
    delete this->packet;
  }
  
  // all
  void updateStatus(MiLightStatus status);
  virtual void updateStatus(MiLightStatus status, uint8_t groupId);
  virtual void updateBrightness(uint8_t value);
  virtual void command(uint8_t command, uint8_t arg);
  virtual void updateMode(uint8_t value);
  virtual void modeSpeedDown();
  virtual void modeSpeedUp();
  
  // rgbw, rgb+cct
  virtual void updateHue(uint16_t value);
  virtual void updateColorRaw(uint8_t value);
  virtual void updateColorWhite();
  
  // cct 
  virtual void increaseTemperature();
  virtual void decreaseTemperature();
  virtual void increaseBrightness();
  virtual void decreaseBrightness();
  
  // rgb+cct
  virtual void updateTemperature(uint8_t value);
  virtual void updateSaturation(uint8_t value);
  
  virtual void reset() = 0;
  
  virtual uint8_t* buildPacket();
  virtual void prepare(uint16_t deviceId, uint8_t groupId);
  virtual void format(uint8_t const* packet, char* buffer);
  
  static void formatV1Packet(uint8_t const* packet, char* buffer);
  
  template <typename T>
  static T rescale(T value, uint8_t newMax, float oldMax = 255.0) {
    return round(value * (newMax / oldMax));
  }
  
  size_t getPacketLength() const;
  
protected:
  uint8_t* packet;
  size_t packetLength;
  uint16_t deviceId;
  uint8_t groupId;
  uint8_t sequenceNum;
};

#endif