#include <RCSwitch.h>

RCSwitch mySwitch = RCSwitch();

// set pin numbers:

const int redPin      =  13;// the number of the red LED pin
const int yellowPin   =  12;// the number of the yellow LED pin
const int greenPin    =  11;// the number of the green LED pin
const int red2Pin     =  10;// the number of the red LED pin
const int yellow2Pin  =  9;// the number of the yellow LED pin
const int green2Pin   =  8;// the number of the green LED pin

// Variables will change:

String code;
int flag = 0;
int redState      = LOW;// redState used to set the red LED
int yellowState   = LOW;// yellowState used to set the yellow LED
int greenState    = LOW;// greenState used to set the green LED
int red2State     = LOW;// redState used to set the red LED
int yellow2State  = LOW;// yellowState used to set the yellow LED
int green2State   = LOW;// greenState used to set the green LED


unsigned long StartTime = 0;// will store last time the traffic sequence was started
unsigned long CheckTime;
unsigned long elapsedTime;

// the follow variables is a long because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
long interval = 6000;// sequence interval  is the time in miliseconds from the start of the green
// light to the end of the red (milliseconds)

void setup() {

  Serial.begin(9600);
  mySwitch.enableReceive(0);  // Receiver on interrupt 0 => that is pin #2

  // set the digital pin as output:
  pinMode(redPin, OUTPUT);
  pinMode(yellowPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(red2Pin, OUTPUT);
  pinMode(yellow2Pin, OUTPUT);
  pinMode(green2Pin, OUTPUT);
  digitalWrite(redPin, 1);
  digitalWrite(yellowPin, 1);
  digitalWrite(greenPin, 1);
  digitalWrite(red2Pin, 1);
  digitalWrite(yellow2Pin, 1);
  digitalWrite(green2Pin, 1);
  delay(2000);

}

void loop() {

  if (mySwitch.available()) {
    code = mySwitch.getReceivedValue();
    Serial.print("Received ");
    Serial.println( code );
    if (code == "11836946") {
      Serial.println("Open Green for 10 Seconds");
      flag = 1;
    }
    mySwitch.resetAvailable();
  }

  if (flag == 0) {
    normalOperation();
  }

  else if (flag == 1) {
    if (greenState) {
      delay(1000);
      digitalWrite(redPin, LOW);
      digitalWrite(greenPin, LOW);
      digitalWrite(yellowPin, HIGH);
      delay(1000);
      digitalWrite(greenPin, LOW);
      digitalWrite(yellowPin, LOW);
      digitalWrite(redPin, HIGH);
      digitalWrite(green2Pin, HIGH);
      digitalWrite(red2Pin, LOW);
      digitalWrite(yellow2Pin, LOW);
      delay(10000);
      digitalWrite(yellow2Pin, HIGH);
      digitalWrite(green2Pin, LOW);
      digitalWrite(red2Pin, LOW);
      delay(1000);
      flag = 0;
    }
    if (yellowState) {
      delay(1000);
      digitalWrite(redPin, HIGH);
      digitalWrite(greenPin, LOW);
      digitalWrite(yellowPin, LOW);
      digitalWrite(green2Pin, HIGH);
      digitalWrite(red2Pin, LOW);
      digitalWrite(yellow2Pin, LOW);
      delay(10000);
      digitalWrite(yellow2Pin, HIGH);
      digitalWrite(green2Pin, LOW);
      digitalWrite(red2Pin, LOW);
      delay(1000);
      flag = 0;
    }
    if (redState) {
      delay(10000);
      digitalWrite(yellow2Pin, HIGH);
      digitalWrite(green2Pin, LOW);
      digitalWrite(red2Pin, LOW);
      delay(1000);
      flag = 0;
    }
  }

}// end of LOOP


void normalOperation() {

  CheckTime = millis();
  elapsedTime = CheckTime - StartTime;

  if (elapsedTime > interval) {
    StartTime = CheckTime;
  }

  if (elapsedTime < 2000) {
    redState = LOW;
    yellowState = LOW;
    greenState = HIGH;
    red2State = HIGH;
    yellow2State = LOW;
    green2State = LOW;
  }

  if (elapsedTime > 2000 && elapsedTime < 3000 ) {
    redState = LOW;
    yellowState = HIGH;
    greenState = LOW ;
    red2State = HIGH;
    yellow2State = LOW;
    green2State = LOW;
  }

  if (elapsedTime > 3000 && elapsedTime < 5000) {
    redState = HIGH;
    yellowState = LOW;
    greenState = LOW ;
    red2State = LOW;
    yellow2State = LOW;
    green2State = HIGH;
  }

  if (elapsedTime > 5000 && elapsedTime < 6000) {
    redState = HIGH;
    yellowState = LOW;
    greenState = LOW ;
    red2State = LOW;
    yellow2State = HIGH;
    green2State = LOW;
  }

  digitalWrite(redPin, redState);
  digitalWrite(greenPin, greenState);
  digitalWrite(yellowPin, yellowState);
  digitalWrite(red2Pin, red2State);
  digitalWrite(green2Pin, green2State);
  digitalWrite(yellow2Pin, yellow2State);
}