/**

 * Relational pipes

 * Copyright © 2021 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 "ProxyVector.h"

namespace relpipe {

namespace in {

namespace asn1 {

namespace lib {

class XMLContentHandler {

public:

	virtual ~XMLContentHandler() = default;

	// FIXME: namespaces, check names

	virtual void writeStartElement(const std::string& name, const std::vector<std::string>& attributes = {}) = 0;

	virtual void writeEndElement() = 0;

	virtual void writeCharacters(const std::string& value) = 0;

	virtual void writeComment(const std::string& value, bool addSpaces = true) = 0;

};

class XMLContentHandlerProxy : XMLContentHandler {

private:

	ProxyVector<XMLContentHandler> handlers;

public:

	void addHandler(std::shared_ptr<XMLContentHandler> handler) {

		handlers.push_back(handler);

	}

	void writeStartElement(const std::string& name, const std::vector<std::string>& attributes = {}) override {

		handlers.forward(&XMLContentHandler::writeStartElement, name, attributes);

	}

	void writeEndElement() override {

		handlers.forward(&XMLContentHandler::writeEndElement);

	}

	void writeCharacters(const std::string& value) override {

		handlers.forward(&XMLContentHandler::writeCharacters, value);

	}

	void writeComment(const std::string& value, bool addSpaces = true) override {

		handlers.forward(&XMLContentHandler::writeComment, value, addSpaces);

	}

};

}

}

}

}