/* virt-click
 * Copyright (C) 2011 Red Hat Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <config.h>

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

#include <glib/gi18n.h>

#include "click.h"

gboolean verbose = 0;

static void parse_click (self_t *self, const char *binary, guint nr_args, gchar **args);

static void
short_usage (const char *binary, const char *error)
{
  if (error)
    fprintf (stderr, "Error: %s\n\n", error);
  fprintf
    (stderr,
     "Run '%s --help' to see a full list of available command line\n"
     "options or consult the virt-click(1) manual page.\n",
     binary);
}

int
main (int argc, char **argv)
{
  GOptionContext *context;
  GError *error = NULL;
  gboolean version = 0;
  gchar **args = NULL;
  guint nr_args;
  const GOptionEntry options [] = {
    { "verbose", 'v', 0,  G_OPTION_ARG_NONE,
      &verbose, "Enables verbose output", NULL },
    { "version", 'V', 0,  G_OPTION_ARG_NONE,
      &version, "Display version and exit", NULL },
    { G_OPTION_REMAINING, '\0', 0, G_OPTION_ARG_STRING_ARRAY, &args,
      NULL, "(click|...) [args...]" },
    { NULL, 0, 0, G_OPTION_ARG_NONE, NULL, NULL, 0 }
  };
  self_t *self;

  g_type_init ();

  /* Command line options */
  context = g_option_context_new ("- send click events");
  g_option_context_set_summary
    (context,
     "Send mouse click and key press events to a virtual machine, VNC\n"
     "server, or SPICE server.  See virt-click(1) manual page for complete\n"
     "information.  This is just a summary.\n"
     "\n"
     "Commands:\n"
     "  virt-click <cmd> where <cmd> is:\n"
     "    click x y [b]                   Mouse click at (x, y), with button b"
     );
  g_option_context_add_main_entries (context, options, NULL);
  g_option_context_add_group (context, vc_vnc_cmdline_get_option_group ());
  g_option_context_add_group (context, vc_spice_cmdline_get_option_group ());
  g_option_context_parse (context, &argc, &argv, &error);
  if (error) {
    short_usage (argv[0], error->message);
    g_error_free (error);
    exit (EXIT_FAILURE);
  }
  if (version) {
    printf ("%s\n", PACKAGE_STRING);
    exit (EXIT_SUCCESS);
  }

  /* Initialize structure. */
  self = g_new0 (self_t, 1);
  self->loop = g_main_loop_new (g_main_context_default(), FALSE);
  self->ret = EXIT_FAILURE;

  /* Parse the command in detail. */
  if (!args || (nr_args = g_strv_length (args)) < 1) {
    short_usage (argv[0], "missing command");
    exit (EXIT_FAILURE);
  }

  if (vc_parse_command (self, args, nr_args) == -1) {
    short_usage (argv[0], "could not parse the command");
    exit (EXIT_FAILURE);
  }

  /* Create VNC/SPICE/... object. */
  if (vc_vnc_is_selected ())
    vc_vnc_setup (self);
  else if (vc_spice_is_selected ()) {
    vc_spice_setup (self);
  }
  else {
    short_usage (argv[0], "no --vnc or --spice option");
    exit (EXIT_FAILURE);
  }

  /* Main loop. */
  g_main_loop_run (self->loop);

  /* Shut down and exit. */
  self->callbacks->shutdown (self);

  g_free(self);

  exit (self->ret);
}