/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
 *
 * Copyright (C) 2008 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
 * Lesser 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., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#include "config.h"

#include <libintl.h>
#include <glib/gi18n.h>
#include <glib.h>
#include <gtk/gtk.h>

#include <unique/uniqueapp.h>
#include <libmatemixer/matemixer.h>

#include "gvc-mixer-dialog.h"

#define DIALOG_POPUP_TIMEOUT 1

static guint       popup_id = 0;
static gboolean    show_version = FALSE;

static gchar      *page = NULL;
static GtkWidget  *app_dialog = NULL;
static GtkWidget  *warning_dialog = NULL;

static void
on_dialog_response (GtkDialog *dialog, guint response_id, gpointer data)
{
	gboolean destroy = GPOINTER_TO_INT (data);

	if (destroy)
		gtk_widget_destroy (GTK_WIDGET (dialog));

        gtk_main_quit ();
}

static void
on_dialog_close (GtkDialog *dialog, gpointer data)
{
	gboolean destroy = GPOINTER_TO_INT (data);

	if (destroy)
		gtk_widget_destroy (GTK_WIDGET (dialog));

        gtk_main_quit ();
}

static UniqueResponse
on_app_message_received (UniqueApp         *app,
                         int                command,
                         UniqueMessageData *message_data,
                         guint              time_,
                         gpointer           user_data)
{
        gtk_window_present (GTK_WINDOW (user_data));

        return UNIQUE_RESPONSE_OK;
}

static void
remove_warning_dialog (void)
{
	if (popup_id != 0) {
		g_source_remove (popup_id);
		popup_id = 0;
	}

	g_clear_pointer (&warning_dialog, gtk_widget_destroy);
}

static void
control_ready (MateMixerControl *control, UniqueApp *app)
{
	/* The dialog might be already created, e.g. when reconnected
	 * to a sound server */
        if (app_dialog != NULL)
                return;

        app_dialog = GTK_WIDGET (gvc_mixer_dialog_new (control));
        g_signal_connect (app_dialog,
                          "response",
                          G_CALLBACK (on_dialog_response),
                          GINT_TO_POINTER (FALSE));
        g_signal_connect (app_dialog,
                          "close",
                          G_CALLBACK (on_dialog_close),
                          GINT_TO_POINTER (FALSE));

        gvc_mixer_dialog_set_page (GVC_MIXER_DIALOG (app_dialog), page);

        g_signal_connect (app, "message-received",
                          G_CALLBACK (on_app_message_received), app_dialog);

        gtk_widget_show (app_dialog);
}

static void
on_control_state_notify (MateMixerControl *control, UniqueApp *app)
{
        MateMixerState state = mate_mixer_control_get_state (control);
        gboolean       failed = FALSE;

        if (state == MATE_MIXER_STATE_READY) {
		remove_warning_dialog ();

		if (mate_mixer_control_get_backend_type (control) != MATE_MIXER_BACKEND_NULL)
			control_ready (control, app);
		else
			failed = TRUE;
        }
        else if (state == MATE_MIXER_STATE_FAILED) {
		remove_warning_dialog ();
		failed = TRUE;
        }

        if (failed) {
		GtkWidget *dialog;

		dialog = gtk_message_dialog_new (GTK_WINDOW (app_dialog),
		                                 0,
		                                 GTK_MESSAGE_ERROR,
		                                 GTK_BUTTONS_CLOSE,
		                                 _("Sound system is not available"));

		g_signal_connect (dialog,
		                  "response",
		                  G_CALLBACK (on_dialog_response),
		                  GINT_TO_POINTER (TRUE));
		g_signal_connect (dialog,
		                  "close",
		                  G_CALLBACK (on_dialog_close),
		                  GINT_TO_POINTER (TRUE));

		gtk_widget_show (dialog);
        }
}

static gboolean
dialog_popup_timeout (gpointer data)
{
	warning_dialog = gtk_message_dialog_new (GTK_WINDOW (app_dialog),
	                                         0,
	                                         GTK_MESSAGE_INFO,
	                                         GTK_BUTTONS_CANCEL,
	                                         _("Waiting for sound system to respond"));

	g_signal_connect (warning_dialog,
	                  "response",
			  G_CALLBACK (on_dialog_response),
			  GINT_TO_POINTER (TRUE));
	g_signal_connect (warning_dialog,
	                  "close",
			  G_CALLBACK (on_dialog_close),
			  GINT_TO_POINTER (TRUE));

	gtk_widget_show (warning_dialog);

	return FALSE;
}

int
main (int argc, char **argv)
{
        GError           *error = NULL;
        MateMixerControl *control;
        UniqueApp        *app;
        GOptionEntry      entries[] = {
                { "page",    'p', 0, G_OPTION_ARG_STRING, &page, N_("Startup page"), "effects|hardware|input|output|applications" },
                { "version", 'v', 0, G_OPTION_ARG_NONE,   &show_version, N_("Version of this application"), NULL },
                { NULL }
        };

        bindtextdomain (GETTEXT_PACKAGE, LOCALE_DIR);
        bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
        textdomain (GETTEXT_PACKAGE);

        gtk_init_with_args (&argc, &argv,
                            (char *) _(" — MATE Volume Control"),
                            entries, GETTEXT_PACKAGE,
                            &error);
        if (error != NULL) {
                g_warning ("%s", error->message);
                return 1;
        }
        if (show_version) {
                g_print ("%s %s\n", argv[0], VERSION);
                return 0;
        }

        app = unique_app_new (GVC_DIALOG_DBUS_NAME, NULL);

        if (unique_app_is_running (app)) {
                unique_app_send_message (app, UNIQUE_ACTIVATE, NULL);
                return 0;
        }
        if (!mate_mixer_init ()) {
                g_warning ("libmatemixer initialization failed, exiting");
                return 1;
        }

        control = mate_mixer_control_new ();

        mate_mixer_control_set_app_name (control, _("Volume Control"));
        mate_mixer_control_set_app_id (control, GVC_DIALOG_DBUS_NAME);
        mate_mixer_control_set_app_version (control, VERSION);
        mate_mixer_control_set_app_icon (control, "multimedia-volume-control");

        g_signal_connect (control,
                          "notify::state",
                          G_CALLBACK (on_control_state_notify),
                          app);

        mate_mixer_control_open (control);

        /* */
        if (mate_mixer_control_get_state (control) == MATE_MIXER_STATE_CONNECTING)
		popup_id = g_timeout_add_seconds (DIALOG_POPUP_TIMEOUT,
		                                  dialog_popup_timeout,
		                                  NULL);

        gtk_icon_theme_append_search_path (gtk_icon_theme_get_default (),
                                           ICON_DATA_DIR);

        gtk_window_set_default_icon_name ("multimedia-volume-control");

        gtk_main ();

        g_object_unref (control);
        g_object_unref (app);

        mate_mixer_deinit ();

        return 0;
}