/**
 * Relational pipes
 * Copyright © 2018 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 <cstdlib>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

#include <xercesc/sax2/SAX2XMLReader.hpp>
#include <xercesc/sax2/XMLReaderFactory.hpp>
#include <xercesc/sax2/DefaultHandler.hpp>
#include <xercesc/util/XMLString.hpp>

#include <relpipe/writer/typedefs.h>

#include "StreamInputSource.h"

namespace relpipe {
namespace in {
namespace xml {

class XMLCommand {
public:

	void process(std::istream& input, std::ostream& output) {
		using namespace relpipe::writer;
		using namespace xercesc;
		unique_ptr<RelationalWriter> writer(Factory::create(output));
		XMLPlatformUtils::Initialize();


		unique_ptr<SAX2XMLReader> parser(XMLReaderFactory::createXMLReader());
		parser->setFeature(XMLUni::fgSAX2CoreValidation, true);
		parser->setFeature(XMLUni::fgSAX2CoreNameSpaces, true);

		// TODO: custom handler that reads
		DefaultHandler defaultHandler;
		parser->setContentHandler(&defaultHandler);
		parser->setErrorHandler(&defaultHandler);

		StreamInputSource inputSource(input);

		parser->parse(inputSource);


		// TODO: remove demo
		// Various data types passed as strings
		writer->startRelation(L"xml",{
			{L"s", TypeId::STRING},
			{L"i", TypeId::INTEGER},
			{L"b", TypeId::BOOLEAN}
		}, true);

		writer->writeAttribute(L"a");
		writer->writeAttribute(L"1");
		writer->writeAttribute(L"true");

	}
};

}
}
}