//
// This file is part of Kepka,
// an unofficial desktop version of Telegram messaging app,
// see https://github.com/procxx/kepka
//
// Kepka 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.
//
// It 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.
//
// In addition, as a special exception, the copyright holders give permission
// to link the code of portions of this program with the OpenSSL library.
//
// Full license: https://github.com/procxx/kepka/blob/master/LICENSE
// Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
// Copyright (c) 2017- Kepka Contributors, https://github.com/procxx
//
#include "base/qthelp_url.h"
#include "core/utils.h"
#include <QStringList>

namespace qthelp {

QMap<QString, QString> url_parse_params(const QString &params, UrlParamNameTransform transform) {
	QMap<QString, QString> result;

	auto transformParamName = [transform](const QString &name) {
		if (transform == UrlParamNameTransform::ToLower) {
			return name.toLower();
		}
		return name;
	};

	auto paramsList = params.split('&');
	for_const (auto &param, paramsList) {
		// Skip params without a name (starting with '=').
		if (auto separatorPosition = param.indexOf('=')) {
			auto paramName = param;
			auto paramValue = QString();
			if (separatorPosition > 0) {
				paramName = param.mid(0, separatorPosition);
				paramValue = url_decode(param.mid(separatorPosition + 1));
			}
			paramName = transformParamName(paramName);
			if (!result.contains(paramName)) {
				result.insert(paramName, paramValue);
			}
		}
	}
	return result;
}

} // namespace qthelp