/**
 * 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 <libxml++-2.6/libxml++/libxml++.h>

#include "XMLContentHandler.h"

namespace relpipe {
namespace in {
namespace asn1 {
namespace lib {

class DOMBuildingXMLContentHandler : public XMLContentHandler {
private:
	xmlpp::Document* document;
	xmlpp::Element* current = nullptr;
	// TODO: check current == nullptr and throw exception

public:

	DOMBuildingXMLContentHandler(xmlpp::Document* document) : document(document) {
	}

	void writeStartElement(const std::string& name, const std::vector<std::string>& attributes) override {
		if (current) current = current->add_child(name);
		else current = document->create_root_node(name);

		for (int i = 0; i < attributes.size(); i = i + 2) {
			std::string attributeName = attributes[i];
			std::string attributeValue = attributes[i + 1];
			current->set_attribute(attributeName, attributeValue);
		}
	}

	void writeEndElement() override {
		current = current->get_parent();
	}

	void writeCharacters(const std::string& value) override {
		current->add_child_text(value);
	}

	void writeComment(const std::string& value, bool addSpaces) override {
		current->add_child_comment(addSpaces ? " " + value + " " : value);
	}

};

}
}
}
}