#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <sys/inotify.h>


int main(int argc, char **argv)
{
  int watchcount = 0;
  int watchlist[10];
  char *watchlistrev[100000];

  if(argc < 2)
    {
      printf("Please specify something to watch!\n");
    }

  int myq = inotify_init();
  if(myq == -1)
    {
      perror("inotify_init() failed");
      exit(1);
    }

  /* skip argv[0] */
  argc--;
  *argv++;

  printf("Setting up...\n");
  while(argc)
    {
      printf("... adding %s...\n",*argv);
      int wd = inotify_add_watch(myq, *argv, IN_ALL_EVENTS);
      if(wd == -1)
	{
	  perror("inotify_add_watch() error");
	}
      else
	{
	  watchlist[watchcount++] = wd;
	  watchlistrev[wd] = strdup(*argv);
	}
      argc--;
      *argv++;
    }

  //  struct inotify_event event;
  char buffer[1024];

  printf("\n\nGo!\n");
  int count = 0;
  while(1)
    {
      if(watchcount == 0)
	{
	  printf("\n\nThe number of watched items is zero. Exiting!\n");
	  exit(0);
	}

      int ret;

      ret = read(myq,buffer,1024);
      if(ret < 0)
	{
	  perror("read() error");
	  exit(2);
	}

      if(ret > 0)
	{
	  count++;
	  struct inotify_event *event = (struct inotify *)buffer; // not beautiful ;-(
	  printf("event %d: activity on %s:\n",count,watchlistrev[event->wd]);
	  printf(" ... "); 
	  if(IN_ACCESS & event->mask)
	    {
	      printf(" *access made* ");
	    }
	  if(IN_ATTRIB & event->mask)
	    {
	      printf(" *attribute change* ");
	    }
	  if(IN_CLOSE_WRITE & event->mask)
	    {
	      printf(" *file opened for writing was closed* ");
	    }
	  if(IN_CLOSE_NOWRITE & event->mask)
	    {
	      printf(" *file not opened for writing was closed* ");
	    }
	  if(IN_CREATE & event->mask)
	    {
	      printf(" *file was created* ");
	    }
	  if(IN_DELETE & event->mask)
	    {
	      printf(" *file was deleted* ");
	    }
	  if(IN_DELETE_SELF & event->mask)
	    {
	      printf(" *watched file was deleted* ");
	      watchcount--;
	    }
	  if(IN_MODIFY & event->mask)
	    {
	      printf(" *file was modified* ");
	    }
	  if(IN_MOVE_SELF & event->mask)
	    {
	      printf(" *watched filed was moved* ");
	    }
	  if(IN_MOVED_FROM & event->mask)
	    {
	      printf(" *file was moved from watched directory* ");
	    }
	  if(IN_MOVED_TO & event->mask)
	    {
	      printf(" *file was moved into watched directory* ");
	    }
	  if(IN_OPEN & event->mask)
	    {
	      printf(" *file was opened* ");
	    }
	  printf(" ...\n"); 
	  if(event->len > 0)
	    {
	      printf(" .... filename == '%s'\n",event->name);
	    }
	  printf("\n\n");
	}
    }

}