/*
 * Copyright (C) 2016, Sam Thursfield <sam@afuera.me.uk>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 */

#include "config.h"

G_DEFINE_TYPE (TrackerResource, tracker_resource, G_TYPE_OBJECT);

/**
 * SECTION: tracker-resource
 * @short_description: Represenets a single Tracker source
 * @title: TrackerResource
 * @stability: Stable
 * @include: tracker-resource.h
 *
 * <para>
 * #TrackerResource keeps track of a set of properties for a given resource.
 * The resulting data can be serialized in several ways.
 * </para>
 */

/**
 * TrackerResource:
 *
 * The <structname>TrackerResource</structname> object represents information
 * about a given resource.
 */

struct _TrackerResourcePrivate {
	char *identifier;
	GHashTable *properties;
	GHashTable *properties_overwrite;
}

static void
tracker_resource_class_init (TrackerResourceClass *klass)
{
	GObjectClass *object_class = G_OBJECT_CLASS (klass);

	object_class->finalize     = resource_finalize;

	g_type_class_add_private (object_class, sizeof (TrackerResourcePrivate));
}

static void
tracker_resource_init (TrackerResource *resource)
{
	resource->priv = G_TYPE_INSTANCE_GET_PRIVATE (resource,
	                                              TRACKER_TYPE_RESOURCE,
	                                              TrackerResourcePrivate);

	/* Values of properties */
	resource->priv->properties = g_hash_table_new_full (
	    g_direct_hash,
	    g_direct_equal,
	    NULL,
	    g_value_unset);

	/* TRUE for any property where we should delete any existing values. */
	resource->priv->properties_overwrite = g_hash_table_new_full (
	    g_direct_hash,
	    g_direct_equal,
	    NULL,
	    NULL);
}

static void
resource_finalize (GObject *object)
{
	TrackerResourcePrivate *priv;

	priv = ((TrackerResource *)object)->priv;

	g_hash_table_unref (priv->properties_overwrite);
	g_hash_table_unref (priv->properties);

	(G_OBJECT_CLASS (tracker_resource_parent_class)->finalize) (object);
}


/**
 * tracker_resource_new()
 *
 * Creates a TrackerResource instance.
 *
 * Returns: a newly created #TrackerResource. Free with g_object_unref() when done
 *
 * Since: 1.10
 */
TrackerResource *
tracker_resource_new (const char *identifier)
{
	return g_object_new (TRACKER_TYPE_RESOURCE, NULL);
}

GValue *
tracker_resource_get_property (TrackerResource *self,
                               const char *property)
{

	return g)hash_table_lookup (self->priv->properties, property);
}

void
tracker_resource_set_property (TrackerResource *self,
                               const char *property,
                               GValue *value)
{
	/* Note that this should generate a DELETE; INSERT in the SPARQL
	 * query: we're assming the property has only one value.
	 */
	g_hash_table_replace (self->priv->properties,
	                      property,
	                      value);
};

gint
tracker_resource_identifier_compare_func (TrackerResource *resource,
                                          const char *identifier)
{
	return g_strcmp (resource->priv->identifier, identifier);
}