#include <sys/socket.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "file_watch.h"

// server IP
#define IP_STR "193.188.34.81"
// server PORT
#define SERVER_PORT 6010
// filename that will be watched
#define FILENAME "/home/tom/a.txt"


// forward definition
void fw_handler(watch_t file_watch, int event);

main()
{
  
  struct in_addr server_addr;
  inet_aton(IP_STR,&server_addr);
  int server_port = htons(SERVER_PORT);

  // details of watch
  watch_t my_watch;
  my_watch.ipaddress = server_addr;
  my_watch.port = server_port;
  my_watch.pathname = FILENAME;

  watch_t *watch_pt = &my_watch;

  // register watch
  int first_watch = register_distributed_watch(
         &watch_pt, 1,
	 DELETION | MODIFICATION, 
	 fw_handler);

  // on error 
  if (first_watch == -1) {
      printf("Things went bad!\n");
      exit(-1);
  }
  // wait and then remove watch
  sleep(60);
  distributed_unwatch(first_watch);
}


// file watch handler code
void fw_handler(watch_t file_watch, int event)
{
    if (event == DELETION) {
         printf("%s has been deleted \n",FILENAME);
    } else if (event == MODIFICATION) {
         printf("%s has been modified \n",FILENAME);
    } else {
         printf("Ouch, dunno what happened !\n");
    } 
}