/**
 * Relational pipes
 * Copyright © 2022 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/>.
 */
#include <cstdlib>
#include <vector>
#include <memory>
#include <locale>
#include <regex>
#include <algorithm>
#include <unistd.h>
#include <sstream>
#include <iomanip>

#include <relpipe/writer/RelationalWriter.h>
#include <relpipe/writer/RelpipeWriterException.h>
#include <relpipe/writer/AttributeMetadata.h>
#include <relpipe/writer/Factory.h>
#include <relpipe/writer/TypeId.h>

#include <relpipe/cli/CLI.h>

#include "PosixMQCommand.h"
#include "PosixMQ.h"

using namespace std;
using namespace relpipe::cli;
using namespace relpipe::writer;

namespace relpipe {
namespace in {
namespace posixmq {

void PosixMQCommand::process(std::shared_ptr<writer::RelationalWriter> writer, Configuration& configuration) {
	vector<AttributeMetadata> metadata;

	std::shared_ptr<PosixMQ> mq(PosixMQ::open(convertor.to_bytes(configuration.queue), configuration.unlinkOnClose));

	writer->startRelation(configuration.relation,{
		{L"queue", TypeId::STRING},
		{L"text", TypeId::STRING},
		{L"data", TypeId::STRING}
	}, true);

	for (int i = configuration.messageCount; i > 0; i--) {
		std::string message = mq->receive();

		std::stringstream hex;
		hex << std::hex << std::setfill('0');
		for (uint8_t b : message) hex << std::setw(2) << (int) b;

		writer->writeAttribute(configuration.queue);
		writer->writeAttribute(convertor.from_bytes(message)); // Show at least ASCII characters + ... if UTF-8 decoding fails
		writer->writeAttribute(convertor.from_bytes(hex.str()));
	}

}

PosixMQCommand::~PosixMQCommand() {
}

}
}
}