/*
This service primarily controls PulseAudio and is driven by the sound indicator menu on the panel.
Copyright 2010 Canonical Ltd.

Authors:
    Conor Curran <conor.curran@canonical.com>
    Ted Gould <ted@canonical.com>
    Christoph Korn <c_korn@gmx.de>
    Cody Russell <crussell@canonical.com>

This program is free software: you can redistribute it and/or modify it 
under the terms of the GNU General Public License version 3, as published 
by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but 
WITHOUT ANY WARRANTY; without even the implied warranties of 
MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
*/
#include "sound-service.h"
#include "sound-service-dbus.h" 
#include "pulse-manager.h"
#include "common-defs.h"

//TODO: Follow hungarian notation
// GTK + DBUS
static GMainLoop * mainloop = NULL;
static DbusmenuMenuitem * root_menuitem = NULL;
static DbusmenuMenuitem * mute_all_menuitem = NULL;
static SoundServiceDbus * dbus_interface = NULL;

// PULSEAUDIO
static gboolean b_sink_available = FALSE;
static gboolean b_all_muted = FALSE;
static gboolean b_pulse_ready = FALSE;

static void set_global_mute();
static gboolean idle_routine (gpointer data);
static void rebuild_sound_menu(DbusmenuMenuitem *root, SoundServiceDbus *service);


/**********************************************************************************************************************/
//    Init functions (GTK and DBUS)
/**********************************************************************************************************************/
/**
Pass to the g_idle_add method - returning False will ensure that this method is never called again as it is removed as an event source. 
**/
static gboolean idle_routine (gpointer data)
{
    return FALSE;
}

/**
Build the DBus menu items. For now Mute all/Unmute is the only available option
**/
static void rebuild_sound_menu(DbusmenuMenuitem *root, SoundServiceDbus *service)
{
    mute_all_menuitem = dbusmenu_menuitem_new();

    dbusmenu_menuitem_property_set(mute_all_menuitem, DBUSMENU_MENUITEM_PROP_LABEL, _(b_all_muted == FALSE ? "Mute All" : "Unmute"));
    g_signal_connect(G_OBJECT(mute_all_menuitem), DBUSMENU_MENUITEM_SIGNAL_ITEM_ACTIVATED, G_CALLBACK(set_global_mute), NULL);
    //TODO: If no valid sinks are found grey out the item(s)
    dbusmenu_menuitem_property_set_bool(mute_all_menuitem, DBUSMENU_MENUITEM_PROP_SENSITIVE, b_sink_available);
    dbusmenu_menuitem_child_append(root, mute_all_menuitem);
}

static void set_global_mute()
{
    b_all_muted = !b_all_muted;
    toggle_global_mute(b_all_muted); 
    dbusmenu_menuitem_property_set(mute_all_menuitem, DBUSMENU_MENUITEM_PROP_LABEL, _(b_all_muted == FALSE ? "Mute All" : "Unmute"));
}


/* When the service interface starts to shutdown, we
   should follow it. - 
*/
void
service_shutdown (IndicatorService *service, gpointer user_data)
{

	if (mainloop != NULL) {

		g_debug("Service shutdown - but commented out for right now");
/*        close_pulse_activites()*/
/*		  g_main_loop_quit(mainloop);*/
	}
	return;
}

void update_pa_state(gboolean pa_state, gboolean sink_available, gboolean sink_muted)
{
    b_sink_available = sink_available;
    b_all_muted = sink_muted;
    b_pulse_ready = pa_state;
	g_debug("update pa state with %i, %i and %i", pa_state, sink_available, sink_muted);
    rebuild_sound_menu(root_menuitem, dbus_interface);
}

/**
Pulsemanager will call this once enough info has been gathered about the PA state
**/
/*void pa_init_state(GHashTable *sinks)*/
/*{*/
/*    sinks_hash = sinks;*/
/*    rebuild_sound_menu(root_menuitem, dbus_interface);    */
/*}*/


/* Main, is well, main.  It brings everything up and throws
   us into the mainloop of no return. Some refactoring needed.*/
int
main (int argc, char ** argv)
{
    g_type_init();

	setlocale (LC_ALL, "");
	bindtextdomain (GETTEXT_PACKAGE, GNOMELOCALEDIR);
	textdomain (GETTEXT_PACKAGE);

	IndicatorService *service = indicator_service_new_version(INDICATOR_SOUND_DBUS_NAME,
	                                                           INDICATOR_SOUND_DBUS_VERSION);
	g_signal_connect(G_OBJECT(service),
	                 INDICATOR_SERVICE_SIGNAL_SHUTDOWN,
	                 G_CALLBACK(service_shutdown), NULL);    

    root_menuitem = dbusmenu_menuitem_new();
    g_debug("Root ID: %d", dbusmenu_menuitem_get_id(root_menuitem));
	
    g_idle_add(idle_routine, root_menuitem);

    dbus_interface = g_object_new(SOUND_SERVICE_DBUS_TYPE, NULL);

    DbusmenuServer *server = dbusmenu_server_new(INDICATOR_SOUND_DBUS_OBJECT);
    dbusmenu_server_set_root(server, root_menuitem);
    establish_pulse_activities(dbus_interface);

    // Run the loop
    mainloop = g_main_loop_new(NULL, FALSE);
    g_main_loop_run(mainloop);

    return 0;
}