#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>

#include "fork.h"

int is_prime(size_t n)
{



    int status;
    pid_t pid = fork();
    if(pid < 0) return -1;
    //Child
    if(pid == 0){
        for(size_t i = 2; i < n; i ++){
            if(n % i == 0 && i != n){
                printf("Child speaking: my number %zu is not a prime number\n", n);
                printf("We both say hi!\n");
                exit(0);
            }
        }
        printf("Child speaking: my number %zu is a prime number\n", n);  
        printf("We both say hi!\n");
        exit(1);
    }
    
    //daddy milk
    else{
        if(waitpid(pid, &status, 0) == -1) return -1;

        if(WIFEXITED(status)){
            if(WEXITSTATUS(status) == 1) printf("Parent speaking: stop wasting my time of course %zu is a prime number\n", n);
            else printf("Parent speaking: stop wasting my time of course %zu is not a prime number\n", n);
        }
        printf("We both say hi!\n");
    }
    


    return WEXITSTATUS(status);
}
/*
int salute(int num_guests, char *guests[])
{
    
    return 0;
}*/