/**

 * Relational pipes

 * Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)

 *

 * 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 3 of the License.

 *

 * 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/>.

 */

#pragma once

#include <vector>

#include <relpipe/writer/typedefs.h>

namespace relpipe {

namespace in {

namespace filesystem {

using namespace relpipe::writer;

class RequestedField {

public:

	static const string_t GROUP_FILE;

	static const string_t GROUP_XATTR;

	static const string_t GROUP_STREAMLET;

	integer_t id;

	string_t group;

	string_t name;

	std::vector<string_t> aliases;

	/**

	 * used as an ordered multi-map

	 * option name, value, name, value,…

	 */

	std::vector<string_t> options;

	RequestedField(const string_t& group, const string_t& name, const std::vector<string_t>& aliases = {}, const std::vector<string_t>& options = {}) : group(group), name(name), aliases(aliases), options(options) {

	}

	/**

	 * @return aliases (might be empty)

	 */

	std::vector<string_t> getAliases() const {

		return aliases;

	}

	/**

	 * @return aliases or vector with single item (name), if aliases are empty

	 */

	std::vector<string_t> getAliasesOrName() const {

		if (aliases.empty()) return {name};

		else return aliases;

	}

	virtual ~RequestedField() {

	}

};

const string_t RequestedField::GROUP_FILE = L"file";

const string_t RequestedField::GROUP_XATTR = L"xattr";

const string_t RequestedField::GROUP_STREAMLET = L"streamlet";

}

}

}