/*
 * Copyright (c) 2011 Voicu Vlad
 * Licensed under the Simplified BSD license.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#include <SwifTools/SpellChecker.h>

#include <algorithm>
#include <aspell.h>
#include <boost/algorithm/string.hpp>


namespace Swift {

SpellChecker::SpellChecker() {
	AspellCanHaveError* ret;
	config_ = new_aspell_config();
	ret = new_aspell_speller(config_);
	if (aspell_error(ret) != 0) {
		//TODO(vladv): Proper log the error
		//printf("Error: %s\n",aspell_error_message(ret));
		delete_aspell_can_have_error(ret);
	}
	speller_ = to_aspell_speller(ret);
}

bool SpellChecker::isCorrect(const std::string& word) {
	if (!word.empty()) {
		int aspell_error = aspell_speller_check(speller_, word.c_str(), -1);
		if (aspell_error == 1) {
			return true;
		} else {
			//TODO(vladv): Proper log the error
		}
	}
	return false;
}

void SpellChecker::getSuggestions(const std::string& word, std::vector<std::string>& list) {
	const AspellWordList *alist;
	if (!word.empty()) {
		alist = aspell_speller_suggest(speller_, word.c_str(), -1);
		AspellStringEnumeration *els = aspell_word_list_elements(alist);
		const char* aword;
		while (((aword = aspell_string_enumeration_next(els)) != 0) && list.size() <= 5) {
			list.push_back(std::string(aword));
		}
	}
}

}