/*
   The parser piece for the scheduler assignment
*/
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
/* You will need the integer queue */
#include "IQueue.h"
int main(int argc, char* argv[])
{
  int fd;
  FILE *f;
  char line[80];
  int start_time, duration;
  int i;
int ii;

  struct process_struct
  {
    int process_id;
    int start_time;
    int duration;
    int time_left;
  };
  struct process_struct process_list[80];
  int process_count;

  if (argc !=2)
  {
    printf("usage a.out file_name\n");
    return 0;
  };
  f = fopen(argv[1],"r");
  process_count = 0;

  while(fgets(line,sizeof(line),f) != NULL)
  {
    sscanf(line, "%d %d", &start_time, &duration);
    process_list[process_count].process_id = process_count;
    process_list[process_count].start_time = start_time;
    process_list[process_count].duration = duration;
    process_list[process_count].time_left = duration;
    process_count++ ;
  }
  
////////

int currentTime = 0;
int timeSlice = 5;
int psleft = process_count;
int PID = 0;




while(psleft>0){

		


printf("\n\ncurrent time is :  %d\n", currentTime);






		for(ii=0; ii<psleft; ii++){
		if(process_list[ii].start_time == currentTime){		
		IQueueStore(ii);		
		}
		}	
		
		if(IQueueSize()==0){
		printf("idle\n);
		}
		
		if(IQueueSize()>0){
		PID = IQueueRetrieve();
		printf("running process %d for 5 timesharess \n", PID);
		process_list[PID].time_left = process_list[PID].time_left-timeSlice;
		}
		if(process_list[PID].time_left>0){
		IQueueStore(PID);
		}





currentTime = currentTime +5;
sleep(2);
}//end while



///////v





  printf("DONE\n");
  close(fd);
};