#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>

struct Client
{
  int l;             // stores number of vowels
  int m;             // stores number of vowels
  int n;             // stores number of vowels
  char charbuff1[7]; // buffer holds a character
  char outchar1[8];  // server puts string here
  char charbuff2[7]; // buffer holds a character
  char outchar2[8];  // server puts string here
  char charbuff3[7]; // buffer holds a character
  char outchar3[8];  // server puts string here
}
inst;
main (void)
{
  memset(inst.charbuff1,0,7);
  memset(inst.outchar1,0,8);
  memset(inst.charbuff2,0,7);
  memset(inst.outchar2,0,8);
  memset(inst.charbuff3,0,7);
  memset(inst.outchar3,0,8);
  int fda; // to write to server
  int fdb; // to read response from server
  struct Client;
  int i;

  if((fda=open("FIFO1", O_WRONLY))<0) //open fifo to write to server
     printf("cant open fifo to write");

  if((fdb=open("FIFO2", O_RDONLY))<0) //open fifo to read from server
     printf("cant open fifo to read");

  printf("Client: Please enter up to 6 lowercase characters: ");
  fgets(inst.charbuff1, 7, stdin);
  fflush(stdin);
  printf("Client: Please enter up to 6 lowercase characters: ");
  fgets(inst.charbuff2, 7, stdin);
  fflush(stdin);
  printf("Client: Please enter up to 6 lowercase characters: ");
  fgets(inst.charbuff3, 7, stdin);
  fflush(stdin);
  write(fda, &inst, sizeof(inst)); //write results to the struct

  printf("\nClient: Got the characters sent, now waiting for response ");
  read(fdb, &inst, sizeof(inst)); //read results from server struct
  printf("\nClient: received from server %s", inst.outchar1);
  printf("\nClient: Was this a valid string? ");
  if(inst.l = 9) //check if first string had an invalid character
  {
    printf("No");
  }
  else
  {
    printf("Yes");
    printf("\nClient: The number of vowels in the string is: %d", inst.l);
  }
  printf("\nClient: The number of vowels in the string is: %d", inst.l);

  printf("\nClient: received from server %s", inst.outchar2);
  printf("\nClient: Was this a valid string? ");
  if(inst.m = 9) //check if second string had an invalid character
  {
    printf("No");
  }
  else
  {
    printf("Yes");
    printf("\nClient: The number of vowels in the string is: %d", inst.m);
  }
  printf("\nClient: received from server %s", inst.outchar3);
  printf("\nClient: Was this a valid string? ");
  if(inst.n = 9) //check if third string had an invalid character
  {
    printf("No");
  }
  else
  {
    printf("Yes");
    printf("\nClient: The number of vowels in the string is: %d", inst.n);
  }

  close(fda);
  close(fdb);

  printf ("\nall done!\n");

}