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/*
 * Copyright (c) 2013 Tobias Markmann
 * Licensed under the simplified BSD license.
 * See Documentation/Licenses/BSD-simplified.txt for more information.
 */

#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/find.hpp>
#include <Swift/Controllers/Contact.h>

namespace Swift {

Contact::Contact() {
}

Contact::Contact(const std::string& name, const JID& jid, StatusShow::Type statusType, const boost::filesystem::path& path) : name(name), jid(jid), statusType(statusType), avatarPath(path) {
}

bool Contact::lexicographicalSortPredicate(const Contact::ref& a, const Contact::ref& b) {
	return a->jid < b->jid;
}

bool Contact::equalityPredicate(const Contact::ref& a, const Contact::ref& b) {
	return a->jid == b->jid;
}

bool Contact::sortPredicate(const Contact::ref& a, const Contact::ref& b, const std::string& search) {
	/* perform case insensitive comparisons */
	std::string aLower = a->name;
	boost::to_lower(aLower);
	std::string bLower = b->name;
	boost::to_lower(bLower);
	std::string searchLower = search;
	boost::to_lower(searchLower);

	/* name starts with the search term */
	if (aLower.find(searchLower) == 0 && bLower.find(searchLower) != 0) {
		return true;
	} else if (bLower.find(searchLower) == 0 && aLower.find(searchLower) != 0) {
		return false;
	}

	/* name contains search term */
	if (aLower.find(searchLower) != std::string::npos && bLower.find(searchLower) == std::string::npos) {
		return true;
	} else if (bLower.find(searchLower) != std::string::npos && aLower.find(searchLower) == std::string::npos) {
		return false;
	}

	/* Levenshtein should be done here */
	/* if edit distances are equal, fall through to the tests below */

	/* lexicographical sort */
	if (a->statusType == b->statusType) {
		return aLower.compare(bLower) < 0;
	}

	/* online status */
	return a->statusType < b->statusType;
}

}