/******************************************************************
  Used Adafruit ADS1X15 Driver (16-bit Differential or Single-Ended ADCs with PGA and Comparator)
  Support for ADS1015/1115
  https://github.com/adafruit/Adafruit_ADS1X15

  adapted for version 4 @Serghei63
 ******************************************************************/

#include "Global.h"
#include "classes/IoTItem.h"

#include "Wire.h"
#include <Adafruit_ADS1X15.h> // Библиотека для работы с модулями ADS1115 и ADS1015

Adafruit_ADS1115 ads;

class Ads1115 : public IoTItem {
      int _pin;
      bool _isRaw; 
      bool _isInited = false;
   
   public:
    Ads1115(String parameters): IoTItem(parameters) {
      String tmp;
      jsonRead(parameters, "pin", tmp);
      _pin = tmp.toInt();

      jsonRead(parameters, "mode", tmp);   
      _isRaw = tmp == "raw";

      if (!ads.begin()) {
        Serial.println("Failed to initialize ADS.");
        _isInited = false;
      } else _isInited = true;

      String gain;
      jsonRead(parameters, "gain", gain);
      if (gain == "1x") ads.setGain(GAIN_ONE);
      else if (gain == "2x") ads.setGain(GAIN_TWO);
      else if (gain == "4x") ads.setGain(GAIN_FOUR); 
      else if (gain == "8x") ads.setGain(GAIN_EIGHT); 
      else if (gain == "16x") ads.setGain(GAIN_SIXTEEN); 
      else ads.setGain(GAIN_TWOTHIRDS);
      // ВОЗМОЖНЫЕ ВАРИАНТЫ УСТАНОВКИ КУ:
      // ads.setGain(GAIN_TWOTHIRDS); //| 2/3х | +/-6.144V | 1bit = 0.1875mV    |
      // ads.setGain(GAIN_ONE);       //| 1х   | +/-4.096V | 1bit = 0.125mV     |
      // ads.setGain(GAIN_TWO);       //| 2х   | +/-2.048V | 1bit = 0.0625mV    |
      // ads.setGain(GAIN_FOUR);      //| 4х   | +/-1.024V | 1bit = 0.03125mV   |
      // ads.setGain(GAIN_EIGHT);     //| 8х   | +/-0.512V | 1bit = 0.015625mV  |
      // ads.setGain(GAIN_SIXTEEN);   //| 16х  | +/-0.256V | 1bit = 0.0078125mV |
    }

    void doByInterval() {
      if (_isInited) {
        if (_isRaw) value.valD = ads.readADC_SingleEnded(_pin); // Чтение АЦП нулевого канала(rawdata)
        else value.valD = ads.computeVolts(ads.readADC_SingleEnded(_pin)); // Чтение АЦП нулевого канала (Вольты)
        regEvent(value.valD, "ADC1115");
      }
    }

    ~Ads1115() {};
};


void *getAPI_Ads1115(String subtype, String param)
{
    if (subtype == F("Ads1115")) {
        return new Ads1115(param);
    } else {
        return nullptr;
    }
}




    // {
    //     "name": "26. Датчик напряжения ADS1115",
    //     "num": 26,
    //     "type": "Reading",
    //     "subtype": "Ads1115",
    //     "id": "Ads3",
    //     "widget": "anydataVlt",
    //     "page": "Сенсоры",
    //     "descr": "ADS_3",
        
    //     "pin": "0",
    //     "mode": "volt",
    //     "gain": "3/4x",

    //     "plus": 0,
    //     "multiply": 1,
    //     "round": 100,
    //     "int": 10
    // }