#include <IRremote.h>

#define PIN_RECEIVER 27   // Signal Pin of IR receiver
const int rgbPins[] = { 21, 19, 18 };
int pwmRGB[] = { 0, 0, 0 };
int flag = 0;
IRrecv receiver(PIN_RECEIVER);


void setup()
{
  receiver.enableIRIn(); // Start the receiver
  Serial.begin(115200); // 
  Serial.println("Hello Arduino\n");
  attachInterrupt(digitalPinToInterrupt(PIN_RECEIVER), IRdetect, CHANGE);
}

void loop()
{
  // Checks received an IR signal
  // if (receiver.decode()) {
  //   translateIR();
  //   receiver.resume();  // Receive the next value
  // }
  ledBegin();
}

// void lcdPrint(char* text)
// {
//   lcd.clear();
//   lcd.setCursor(0, 0);
//   lcd.print("button pressed:");
//   lcd.setCursor(0, 1);
//   lcd.print(text);
//   lcd.print(" code: ");
//   lcd.print(receiver.decodedIRData.command);
// }

void translateIR()
{
  // Takes command based on IR code received
  switch (receiver.decodedIRData.command) {
    case 162:
      Serial.println("POWER");
      Serial.println(receiver.decodedIRData.command);
      pwmRGB[0] = 255;
      pwmRGB[1] = 255;
      pwmRGB[2] = 255;
      // ledBegin();
      break;
    case 226:
      Serial.println("MENU");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 34:
      Serial.println("TEST");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 2:
      Serial.println("PLUS");
      Serial.println(receiver.decodedIRData.command);
      flag = flag + 1;
      if (flag>255)
      {
       flag = 255;
      }
      Serial.println(flag);
      pwmRGB[1] = flag;
      break;
    case 194:
      Serial.println("BACK");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 224:
      Serial.println("PREV.");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 168:
      Serial.println("PLAY");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 144:
      Serial.println("NEXT");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 104:
      Serial.println("num: 0");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 152:
      Serial.println("MINUS");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 176:
      Serial.println("key: C");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 48:
      Serial.println("num: 1");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 24:
      Serial.println("num: 2");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 122:
      Serial.println("num: 3");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 16:
      Serial.println("num: 4");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 56:
      Serial.println("num: 5");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 90:
      Serial.println("num: 6");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 66:
      Serial.println("num: 7");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 74:
      Serial.println("num: 8");
      Serial.println(receiver.decodedIRData.command);
      break;
    case 82:
      Serial.println("num: 9");
      Serial.println(receiver.decodedIRData.command);
      break;
    
      // Serial.println(" ");
      // lcd.clear();
      // lcd.print(receiver.decodedIRData.command);
      // lcd.print(" other button");
  }
}

void ledBegin()
{
  for(int i=0; i<3; i++){
    if(pwmRGB[i] < 0){
      pwmRGB[i] = 0;
    }else if(pwmRGB[i] > 255){
      pwmRGB[i] = 255;
    }
    analogWrite(rgbPins[i], pgm_read_byte(&pwmRGB[i]));
  }
}

void IRdetect()
{
  if (receiver.decode()) {
    translateIR();
    receiver.resume();  // Receive the next value
  }
}