/*
 * matrix-json.h
 *
 * Convenience wrappers for libglib-json
 *
 * 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 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 Street, Fifth Floor, Boston, MA  02111-1301  USA
 */

#ifndef MATRIX_JSON_H_
#define MATRIX_JSON_H_

#include <json-glib/json-glib.h>

/*
 * The following are wrappers which sanity-check their inputs and return NULL
 * (as opposed to segfaulting and/or writing assertion warnings) if objects
 * do not exist or are of the wrong type.
 */

/* node - returns NULL if node == NULL or *node is of the wrong type */
const gchar *matrix_json_node_get_string(JsonNode *node);
gint64 matrix_json_node_get_int(JsonNode *node);
JsonObject *matrix_json_node_get_object(JsonNode *node);
JsonArray *matrix_json_node_get_array(JsonNode *node);


/* object - returns NULL if object == NULL, member_name does not exist,
 * or object[member_name] is of the wrong type
 */
JsonNode *matrix_json_object_get_member(JsonObject *object,
                                        const gchar *member_name);
const gchar *matrix_json_object_get_string_member(JsonObject *object,
                                                  const gchar *member_name);
gint64 matrix_json_object_get_int_member(JsonObject *object,
		const gchar *member_name);
JsonObject *matrix_json_object_get_object_member(JsonObject *object,
                                                 const gchar *member_name);
JsonArray *matrix_json_object_get_array_member(JsonObject *object,
                              	  	  	  	   const gchar *member_name);

/* array - returns NULL if array == NULL, len(array) <= index, or
 * array[index] is the wrong type
 */
JsonNode *matrix_json_array_get_element(JsonArray *array,
        guint index);
const gchar *matrix_json_array_get_string_element(JsonArray *array,
        guint index);



#endif /* MATRIX_JSON_H_ */