#include <iostream>

#include <unistd.h>
using namespace std;

#define NUM_THREADS 5
struct Colors{
    bool red = 0;
    bool yellow = 0;
    bool green = 0;
    bool turn_left = 0;
    bool turn_right = 0;
    bool sensor_A = 0;
    bool sensor_B = 0;

}lane_A, lane_B;


void set_sensor_A(){
    // should receive signal from wherever
}

void set_sensor_B(){
    // should recieve signal from wherever

}



int main()
{

   while(1){


            while(lane_A.sensor_A == 1 and lane_B.sensor_B == 1){
                lane_A.yellow = 0;
                lane_B.yellow = 0;
                // then both board should display yellow
                sleep(15);
                lane_A.red = 0;
                lane_B.red = 0;
                // then both board should display red and so on for the rest
                sleep(200);
                lane_A.turn_left = 1;
                lane_B.turn_right = 0;
                if(lane_A.sensor_B != 0 && lane_B.sensor_B != 0){
                    break;
                }
            }

            lane_A.turn_left = 0;
            lane_B.green = 1;
            lane_B.turn_right = 0
            sleep(600);

            lane_A.yellow = 1;
            lane_B.yellow = 1;
            sleep(5);

            lane_A.red = 1;
            lane_B.red = 1;
            sleep(200);

            lane_B.turn_left = 1;
            lane_A.turn_right = 1;
            sleep(300);


        }
   }
   return 0;
}