/**

 * Relational pipes

 * Copyright © 2020 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 <codecvt>

#include <memory>

#include <string>

extern char** environ;

namespace relpipe {

namespace in {

namespace env {

class ENVCommand {

private:

	std::wstring_convert<codecvt_utf8<wchar_t>> convertor; // TODO: support also other encodings and use platform encoding as default

public:

	void process(std::shared_ptr<writer::RelationalWriter> writer) {

		writer->startRelation(L"env",{

			{L"name", relpipe::writer::TypeId::STRING},

			{L"value", relpipe::writer::TypeId::STRING},

		}, true);

		for (char** e = environ; *e; e++) {

			std::string entry = *e;

			size_t split = entry.find("=");

			std::string name = entry.substr(0, split);

			std::string value = entry.substr(split + 1);

			writer->writeAttribute(convertor.from_bytes(name));

			writer->writeAttribute(convertor.from_bytes(value));

		}

	}

};

}

}

}