#ifndef _JSON_PARSER_H_
#define _JSON_PARSER_H_

#include <stddef.h>

#define JSON_VALUE_STRING	1
#define JSON_VALUE_NUMBER	2
#define JSON_VALUE_OBJECT	3
#define JSON_VALUE_ARRAY	4
#define JSON_VALUE_TRUE		5
#define JSON_VALUE_FALSE	6
#define JSON_VALUE_NULL		7

typedef struct __json_value json_value_t;
typedef struct __json_object json_object_t;
typedef struct __json_array json_array_t;

#ifdef __cplusplus
extern "C"
{
#endif

json_value_t *json_value_parse(const char *text);
json_value_t *json_value_create(int type, ...);
json_value_t *json_value_copy(const json_value_t *val);
void json_value_destroy(json_value_t *val);

int json_value_type(const json_value_t *val);
const char *json_value_string(const json_value_t *val);
double json_value_number(const json_value_t *val);
json_object_t *json_value_object(const json_value_t *val);
json_array_t *json_value_array(const json_value_t *val);

const json_value_t *json_object_find(const char *name,
									 const json_object_t *obj);
int json_object_size(const json_object_t *obj);
const char *json_object_next_name(const char *name,
								  const json_object_t *obj);
const json_value_t *json_object_next_value(const json_value_t *val,
										   const json_object_t *obj);
const char *json_object_prev_name(const char *name,
								  const json_object_t *obj);
const json_value_t *json_object_prev_value(const json_value_t *val,
										   const json_object_t *obj);
const json_value_t *json_object_append(json_object_t *obj,
									   const char *name,
									   int type, ...);
const json_value_t *json_object_insert_after(const json_value_t *val,
											 json_object_t *obj,
											 const char *name,
											 int type, ...);
const json_value_t *json_object_insert_before(const json_value_t *val,
											  json_object_t *obj,
											  const char *name,
											  int type, ...);
json_value_t *json_object_remove(const json_value_t *val,
								 json_object_t *obj);

int json_array_size(const json_array_t *arr);
const json_value_t *json_array_next_value(const json_value_t *val,
										  const json_array_t *arr);
const json_value_t *json_array_prev_value(const json_value_t *val,
										  const json_array_t *arr);
const json_value_t *json_array_append(json_array_t *arry,
									  int type, ...);
const json_value_t *json_array_insert_after(const json_value_t *val,
											json_array_t *arr,
											int type, ...);
const json_value_t *json_array_insert_before(const json_value_t *val,
											 json_array_t *arr,
											 int type, ...);
json_value_t *json_array_remove(const json_value_t *val,
								json_array_t *arr);

#ifdef __cplusplus
}
#endif

#define json_object_for_each(name, val, obj) \
	for (name = NULL, val = NULL; \
		 name = json_object_next_name(name, obj), \
		 val = json_object_next_value(val, obj), val; )

#define json_object_for_each_prev(name, val, obj) \
	for (name = NULL, val = NULL; \
		 name = json_object_prev_name(name, obj), \
		 val = json_object_prev_value(val, obj), val; )

#define json_array_for_each(val, arr) \
	for (val = NULL; val = json_array_next_value(val, arr), val; )

#define json_array_for_each_prev(val, arr) \
	for (val = NULL; val = json_array_prev_value(val, arr), val; )

#endif