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

#include "status-provider.h"

/* Signals */
enum {
	STATUS_CHANGED,
	LAST_SIGNAL
};

static guint signals[LAST_SIGNAL] = { 0 };

/* GObject Boilerplate */
static void status_provider_class_init (StatusProviderClass *klass);
static void status_provider_init       (StatusProvider *self);

G_DEFINE_TYPE (StatusProvider, status_provider, G_TYPE_OBJECT);

static void
status_provider_class_init (StatusProviderClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	klass->status_changed = NULL;

	klass->set_status = NULL;
	klass->get_status = NULL;

	/**
		StatusProvider::status-changed:
		@arg0: The #StatusProvider object.
		@arg1: The new status #StatusProviderStatus

		Should be emitted by subclasses everytime that the status
		changes externally to us.
	*/
	signals[STATUS_CHANGED]    = g_signal_new(STATUS_PROVIDER_SIGNAL_STATUS_CHANGED,
	                                          G_TYPE_FROM_CLASS(klass),
	                                          G_SIGNAL_RUN_LAST,
	                                          G_STRUCT_OFFSET(StatusProviderClass, status_changed),
	                                          NULL, NULL,
	                                          g_cclosure_marshal_VOID__UINT,
	                                          G_TYPE_NONE, 1, G_TYPE_UINT);

	return;
}

static void
status_provider_init (StatusProvider *self)
{

	return;
}

void
status_provider_set_status (StatusProvider * sp, StatusProviderStatus status)
{
	g_return_if_fail(IS_STATUS_PROVIDER(sp));

	StatusProviderClass * class = STATUS_PROVIDER_GET_CLASS(sp);
	g_return_if_fail(class != NULL);
	g_return_if_fail(class->set_status != NULL);

	return class->set_status(sp, status);
}

StatusProviderStatus
status_provider_get_status (StatusProvider * sp)
{
	g_return_val_if_fail(IS_STATUS_PROVIDER(sp), STATUS_PROVIDER_STATUS_OFFLINE);

	StatusProviderClass * class = STATUS_PROVIDER_GET_CLASS(sp);
	g_return_val_if_fail(class->get_status != NULL, STATUS_PROVIDER_STATUS_OFFLINE);

	return class->get_status(sp);
}

void
status_provider_emit_status_changed (StatusProvider * sp, StatusProviderStatus newstatus)
{
	g_return_if_fail(IS_STATUS_PROVIDER(sp));
	g_signal_emit(sp, signals[STATUS_CHANGED], 0, newstatus, TRUE);
	return;
}