#include <RFControl.h>

// Save current temperature and channel
int temperature = 0;
int channel = 0;

void setup() {
  
  // Initialize serial line
  Serial.begin(9600);

  // Start receiving RF signals
  RFControl::startReceiving(0);
}

// The function prints current data to the serial line
void printData() {
    Serial.print("{ ");
    Serial.print("\"temp\": ");
    Serial.print(temperature);
    Serial.print(", \"channel\": ");
    Serial.print(channel);
    Serial.print(" }\n");
}

void loop() {
  
  // Decode data when received
  if(RFControl::hasData()) {
    unsigned int *timings;
    unsigned int timings_size;
    unsigned int pulse_length_divider = RFControl::getPulseLengthDivider();
    RFControl::getRaw(&timings, &timings_size);

    int iTemperatureTmp = 0;
    int iChannelTmp = 0;
    
    for(int i=0; i < timings_size; i++) {
      unsigned long timing = timings[i] * pulse_length_divider;

      // Temperature is at bit 16*2 coded in decimal x 10 on 8 bits
      if( (i >= 16*2) && (i < (16*2 + 8*2)) ) {
        if(i == 16*2) iTemperatureTmp = 0;

        if(timing < 1000) {
          // bit separator, do nothing
        }
        else if(timing < 2000) {
          iTemperatureTmp = iTemperatureTmp<<1;
        }
        else if(timing < 5000) {
          iTemperatureTmp = iTemperatureTmp<<1;
          iTemperatureTmp++;
        }
      }
      // Sensor Channel is after byte 3, on 2 bits, decimal encoded
      else if((i >= 24*2) && i <= 26*2) {
        if(i == 24*2) channel = 0;
        if(timing < 1000) {
          // bit separator, do nothing
        }
        else if(timing < 2000) {
          iChannelTmp = iChannelTmp<<1;
        }
        else if(timing < 5000) {
          iChannelTmp = iChannelTmp<<1;
          iChannelTmp++;
        }
      }
      // Other data
      else {
        // Do nothing for now
      }
    }

    temperature = iTemperatureTmp;
    channel = iChannelTmp;
        
    RFControl::continueReceiving();
  }

  if(Serial.available() > 0) {
    // For now, send data whatever the received command is
    Serial.read();

    // Wait a little
    delay(500);
    
    printData();  
  }
  
}