/**
	rjp
	Copyright (C) 2018-2019 rexy712

	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 3 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, see <http://www.gnu.org/licenses/>.
*/

#ifndef RJP_TREE_H
#define RJP_TREE_H

#include "rjp.h"

#define RJP_TREE_SUCCESS       0
#define RJP_TREE_ERR_NULL_ROOT 1
#define RJP_TREE_ERR_NOT_FOUND 2

typedef struct RJP_object_member{
	RJP_value value;
	RJP_string name;
}RJP_object_member;

typedef struct RJP_object_iterator RJP_object_iterator;
typedef struct RJP_tree_node RJP_tree_node;
struct RJP_tree_node{
	RJP_tree_node* parent;
	RJP_tree_node* left;
	RJP_tree_node* right;
	RJP_object_member data;
	unsigned color:1;
};
typedef struct RJP_tree_stack{
  RJP_tree_node** data;
  int size;
  int pos;
}RJP_tree_stack;
typedef struct RJP_object_iterator{
  RJP_tree_stack stack;
  RJP_tree_node* current;
}RJP_object_iterator;


RJP_tree_node* irjp_new_node(RJP_object_member* value);
RJP_tree_node* irjp_tree_insert_value(RJP_tree_node* root, RJP_object_member* value, int* status);
RJP_tree_node* irjp_tree_remove_value(RJP_tree_node* root, const char* key, int* status);
RJP_tree_node* irjp_tree_search_value(RJP_tree_node* root, const char* key);
RJP_tree_node* irjp_copy_tree(const RJP_tree_node* root);
void irjp_free_tree(RJP_tree_node* root);

int irjp_init_object_iterator(RJP_object_iterator* it, const RJP_tree_node* root);
void irjp_delete_object_iterator(RJP_object_iterator* it);
RJP_tree_node* irjp_object_iterator_next(RJP_object_iterator* it);
RJP_tree_node* irjp_object_iterator_current(RJP_object_iterator* it);

void irjp_dbg_print_tree(RJP_tree_node* root);
void irjp_dbg_print_tree_bfs(RJP_tree_node* root);

#endif