/**
 * Relational pipes
 * Copyright © 2020 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 <memory>
#include <signal.h>

#include <relpipe/cli/CLI.h>
#include <relpipe/cli/RelpipeCLIException.h>

#include <relpipe/common/type/typedefs.h>
#include <relpipe/reader/Factory.h>
#include <relpipe/reader/RelationalReader.h>
#include <relpipe/reader/RelpipeReaderException.h>

#include "Configuration.h"
#include "CLIParser.h"
#include "JackHandler.h"
#include "JackException.h"

using namespace relpipe::cli;
using namespace relpipe::reader;
using namespace relpipe::out::jack;

static std::shared_ptr<JackHandler> jackHandler = nullptr;

void finish(int sig) {
	if (jackHandler) jackHandler->finish(sig);
}

int main(int argc, char**argv) {
	CLI cli(argc, argv);
	CLI::untieStdIO();

	int resultCode = CLI::EXIT_CODE_UNEXPECTED_ERROR;

	try {
		signal(SIGHUP, finish);
		signal(SIGINT, finish);
		CLIParser cliParser;
		Configuration configuration = cliParser.parse(cli.arguments());
		std::shared_ptr<RelationalReader> reader(Factory::create(std::cin));
		jackHandler.reset(new JackHandler(configuration));
		reader->addHandler(jackHandler.get());
		reader->process();

		resultCode = CLI::EXIT_CODE_SUCCESS;

	} catch (RelpipeCLIException e) {
		fwprintf(stderr, L"Caught CLI exception: %ls\n", e.getMessge().c_str());
		fwprintf(stderr, L"Debug: Input stream: eof=%ls, lastRead=%d\n", (cin.eof() ? L"true" : L"false"), cin.gcount());
		resultCode = e.getExitCode();
	} catch (RelpipeReaderException e) {
		fwprintf(stderr, L"Caught Reader exception: %ls\n", e.getMessge().c_str());
		fwprintf(stderr, L"Debug: Input stream: eof=%ls, lastRead=%d\n", (cin.eof() ? L"true" : L"false"), cin.gcount());
		resultCode = CLI::EXIT_CODE_DATA_ERROR;
	} catch (JackException e) {
		fwprintf(stderr, L"Error while generating Jack: %ls\n", e.getMessge().c_str());
		resultCode = CLI::EXIT_CODE_DATA_ERROR;
	}

	return resultCode;
}