/**

 * 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 <regex>

#include <locale>

#include <relpipe/common/type/typedefs.h>

#include "Mode.h"

namespace relpipe {

namespace tr {

namespace infertypes {

class DataMode : public Mode {

private:

	relpipe::common::type::StringX name;

	std::vector<relpipe::reader::handlers::AttributeMetadata> attributes;

	std::vector<relpipe::common::type::StringX> values;

	bool matches(int attributeIndex, const std::wregex& pattern) {

		for (int record = 0, attributeCount = attributes.size(), limit = values.size() / attributeCount; record < limit; record++) if (!std::regex_match(values[record * attributeIndex], pattern)) return false;

		return true;

	}

public:

	DataMode(shared_ptr<writer::RelationalWriter> relationalWriter) : Mode(relationalWriter) {

	}

	void startRelation(relpipe::common::type::StringX name, std::vector<relpipe::reader::handlers::AttributeMetadata> attributes) override {

		this->name = name;

		this->attributes = attributes;

	}

	void attribute(const relpipe::common::type::StringX& value) override {

		values.push_back(value);

	}

	virtual ~DataMode() {

		std::vector<bool> booleans(attributes.size(), true);

		std::vector<bool> integers(attributes.size(), true);

		for (int i = 0, limit = attributes.size(); i < limit; i++) {

		}

		vector<writer::AttributeMetadata> writerMetadata;

		for (int i = 0, limit = attributes.size(); i < limit; i++) {

			relpipe::reader::handlers::AttributeMetadata& am = attributes[i];

			relpipe::writer::TypeId type;

			if (booleans[i]) type = relpipe::writer::TypeId::BOOLEAN;

			else if (integers[i]) type = relpipe::writer::TypeId::INTEGER;

			else type = relpipe::writer::TypeId::STRING;

			writerMetadata.push_back({am.getAttributeName(), type});

		}

		relationalWriter->startRelation(name, writerMetadata, true);

		for (relpipe::common::type::StringX& value : values) relationalWriter->writeAttribute(value);

	}

};

}

}

}