// Adapted from https://developer.mbed.org/teams/myDevicesIoT/code/Cayenne-LPP/

// Copyright © 2017 The Things Network
// Use of this source code is governed by the MIT license that can be found in the LICENSE file.

#ifndef _EASYTHERM_LPP_H_
#define _EASYTHERM_LPP_H_

#include <Arduino.h>

#define LPP_DIGITAL_INPUT 0x00      // input, 1 byte
#define LPP_DIGITAL_OUTPUT 0x01     // output, 1 byte
#define LPP_ANALOG_INPUT 0x02       // input, 2 bytes, 0.01 signed
#define LPP_ANALOG_OUTPUT 0x03      // output, 2 bytes, 0.01 signed
#define LPP_TEMPERATURE 0x04        // input, 2 bytes, 0.1°C signed
#define LPP_RELATIVE_HUMIDITY 0x05  // input, 1 byte, 0.5% unsigned
#define LPP_ACCELERATION 0x06       // input, 2 bytes, 0.001G
#define LPP_BAROMETRIC_PRESSURE 0x07// input, 2 bytes 0.1 hPa unsigned
#define LPP_ANGLE_VELOCITY 0x08     // input, 2 bytes, 0.01 °/s
#define LPP_LUMINOSITY 0x09         // input, 2 bytes, 1 lux unsigned
#define LPP_BATTERY_VOLTAGE 0x0A    // input, 2 bytes, 1mV unsigned
#define LPP_BATTERY_STATUS 0x0B     // input, 1 byte 1%, 255 == unknown

// Data ID + Data Type + Data Size
#define LPP_DIGITAL_INPUT_SIZE 3       // 1 byte
#define LPP_DIGITAL_OUTPUT_SIZE 3      // 1 byte
#define LPP_ANALOG_INPUT_SIZE 4        // 2 bytes, 0.01 signed
#define LPP_ANALOG_OUTPUT_SIZE 4       // 2 bytes, 0.01 signed
#define LPP_TEMPERATURE_SIZE 4         // input, 2 bytes, 0.1°C signed
#define LPP_RELATIVE_HUMIDITY_SIZE 3   // input, 1 byte, 0.5% unsigned
#define LPP_ACCELERATION_SIZE 4        // input, 2 bytes, 0.001G
#define LPP_BAROMETRIC_PRESSURE_SIZE 4 // input, 2 bytes 0.1 hPa unsigned
#define LPP_ANGLE_VELOCITY_SIZE 4      // input, 2 bytes, 0.01 °/s
#define LPP_LUMINOSITY_SIZE 4          // 2 bytes, 1 lux unsigned
#define LPP_BATTERY_VOLTAGE_SIZE 4     // 2 bytes, 1mV unsigned
#define LPP_BATTERY_STATUS_SIZE 3      // 1 byte 1%

class ETCPLPP
{
public:
  ETCPLPP(uint8_t size);
  ~ETCPLPP();

  void reset(void);
  uint8_t getSize(void);
  uint8_t *getBuffer(void);
  uint8_t copy(uint8_t *buffer);

  uint8_t addDigitalInput(uint8_t channel, uint8_t value);
  uint8_t addDigitalOutput(uint8_t channel, uint8_t value);

  uint8_t addAnalogInput(uint8_t channel, float value);
  uint8_t addAnalogOutput(uint8_t channel, float value);

  uint8_t addLuminosity(uint8_t channel, uint16_t lux);
  uint8_t addTemperature(uint8_t channel, float celsius);
  uint8_t addRelativeHumidity(uint8_t channel, float rh);
  uint8_t addBarometricPressure(uint8_t channel, float hpa);

private:
  uint8_t *buffer;
  uint8_t maxsize;
  uint8_t cursor;
};

#endif