#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <glib.h>
#include <glib-object.h>

#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>

#include "update-notifier.h"

extern gboolean DEVEL_RELEASE;

static inline void
g_debug_release(const char *msg, ...)
{
   va_list va;
   va_start(va, msg);
   g_logv("release",G_LOG_LEVEL_DEBUG, msg, va);
   va_end(va);
}

// actually show the notification 
static gboolean
check_new_release(gpointer user_data)
{
   g_debug_release ("check_new_release");

   GError *error = NULL;
   GConfClient *client = (GConfClient*)user_data;
   
   time_t now = time(NULL);
   time_t last_check = gconf_client_get_int(client, GCONF_KEY_LAST_RELEASE_CHECK, &error);
   if ( error != NULL ) {
      g_warning ("could not get %s", GCONF_KEY_LAST_RELEASE_CHECK);
      return FALSE;
   }

   // test if we need to run
   if ( (last_check + RELEASE_UPGRADE_CHECK_WAIT) > now ) {
      g_debug_release ("release upgrade check not needed (%i > %i)", last_check + RELEASE_UPGRADE_CHECK_WAIT, now);
      return TRUE;
   }

   // run the checker
   gchar *argv[10] = { RELEASE_UPGRADE_CHECKER, };
   if (DEVEL_RELEASE) {
      g_debug_release ("running the release upgrade checker %s in devel mode", RELEASE_UPGRADE_CHECKER);
      argv[1] = "--devel-release";
      argv[2] = NULL;
   } else {
      g_debug_release ("running the release upgrade checker %s", RELEASE_UPGRADE_CHECKER);
      argv[1] = NULL;
   }
   g_spawn_async ("/", argv, NULL, 0, NULL, NULL, NULL, NULL);

   // and update the timestamp so we don't check again too soon
   gconf_client_set_int(client, GCONF_KEY_LAST_RELEASE_CHECK, now, NULL);

   return TRUE;
}

gboolean
release_checker_init (UpgradeNotifier *un)
{
   g_debug_release ("release_checker_init");

   GConfClient *client = gconf_client_get_default();
   
   // check once at startup
   check_new_release (client);
   // release upgrades happen not that frequently, we use two timers
   // check every 10 min if 48h are reached and then run 
   // "check-release-upgrade-gtk" again
   g_timeout_add_seconds (60*10, check_new_release, client);

   return TRUE;
}