#include <stdio.h>                  /* WNEK MICHAL - 256848*/
#include <unistd.h>
#include <string.h>
#include <cstdlib>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdbool.h>

int main(int argc,char* argv[])
{
    int count=argc-1;

    struct server
    {
        pid_t pid;
        char *port;
        int state;
    };
    int flag=0;
    //pid_t server_son[count];
    server server_son[count];

    for (int i = 0; i < count; i++)
    {
        switch (server_son[i].pid = fork())
        {
            case -1:
                perror("Fatal Error! - son's fork\n");
                printf("errno = %d \n", errno);
                exit(1);
                break;
            case 0:
                server_son[i].port=argv[i+1];
                if(execl("./pserv","pserv",server_son[i].port,NULL)<0)
                {
                    perror("Fatal Error! - execl\n");
                    exit(1);
                }
                //return 0;
                break;

        }
    }
    pid_t pid;

    for(int i=0;i<argc;i++)
    {
        server_son[i].state=0;
    }


    while(flag<argc-1)
    {
        for(int i=0;i<argc;i++)
        {
            printf("IIIIIII: %d\n",i);
            if(server_son[i].state==0)
            {
                waitpid(server_son[i].pid, &server_son[i].state, 0);  // Parent process waits here for child to terminate.

                switch (server_son[i].state)
                {
                    case 0:
                        switch (server_son[i].pid = fork())
                        {
                            case -1:
                                printf("Error - fork, errno = %d \n", errno);
                                exit(1);
                                break;
                            case 0:
                                server_son[i].port=argv[i+1];
                                printf("\t\t\tflaga= %d\n\n",flag);
                                printf("\t\tport= %s\n\n",server_son[i].port);
                                if(execl("./pserv","pserv",server_son[i].port,NULL)<0)
                                {
                                    perror("Fatal Error! - execl\n");
                                    exit(1);
                                }
                                //return 0;
                                break;
                        }
                        break;
                    case 1:
                        server_son[i].state=1;
                        flag++;
                        printf("\t\t\tflaga= %d\n\n",flag);
                        break;
                }
            }
        }
    }

    printf("End of work with %d parameters\n",argc-1);
    return 0;
}