/******************************************************************************
 *
 *  treekey.cpp -	code for class 'versekey'- a standard Biblical
 *			verse key
 *
 * $Id: treekey.cpp 2833 2013-06-29 06:40:28Z chrislit $
 *
 * Copyright 2002-2013 CrossWire Bible Society (http://www.crosswire.org)
 *	CrossWire Bible Society
 *	P. O. Box 2528
 *	Tempe, AZ  85280-2528
 *
 * 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 version 2.
 *
 * 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.
 *
 */


#include <treekey.h>
#include <utilstr.h>
#include <string.h>

SWORD_NAMESPACE_START

static const char *classes[] = {"TreeKey", "SWKey", "SWObject", 0};
SWClass TreeKey::classdef(classes);

void TreeKey::init() {
	myclass = &classdef;
	unsnappedKeyText = "";
	posChangeListener = 0;
}


void TreeKey::assureKeyPath(const char *keyBuffer) {

	if (!keyBuffer) {
		keyBuffer = unsnappedKeyText;
		//assert we have something to do before setting root
		if (!*keyBuffer)
			return;
	}

	char *keybuf = 0;
	stdstr(&keybuf, keyBuffer);

	root();

	// TODO: change to NOT use strtok. strtok is dangerous.
	SWBuf tok = strtok(keybuf, "/");
	tok.trim();
	while (tok.size()) {
		bool foundkey = false;
		if (hasChildren()) {
			firstChild();
			if (tok == getLocalName()) {
				foundkey = true;
			}
			else {
				while (nextSibling()) {
					if (getLocalName()) {
						if (tok == getLocalName()) {
							foundkey = true;
							break;
						}
					}
				}
			}
			if (!foundkey) {
				append();
				setLocalName(tok);
				save();	    
			}
		}
		else {
			appendChild();
			setLocalName(tok);
			save();
		}

#ifdef DEBUG
//      std::cout << getLocalName() << " : " << tok << std::endl;
#endif

		tok = strtok(0, "/");
		tok.trim();

	}
	delete [] keybuf;
}


SWORD_NAMESPACE_END