#include <cstdlib>

#include <memory>

#include <relpipe/cli/CLI.h>

#include <relpipe/cli/RelpipeCLIException.h>

#include <relpipe/reader/Factory.h>

#include <relpipe/reader/RelationalReader.h>

#include <relpipe/reader/RelpipeReaderException.h>

using namespace relpipe::cli;

using namespace relpipe::reader;

class DemoHandler : public handlers::RelationalReaderStringHadler {

	void startRelation(string_t name, std::vector<std::pair<string_t, TypeId> > attributes) override {

		std::wcout << L"start relation: " << name << std::endl << std::flush;

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

			std::wcout << L"\tcolumn: " << attributes[i].first << L" / " << (int) attributes[i].second << std::endl << std::flush;

		}

	}

	void attribute(const string_t& value) override {

		std::wcout << L"attribute: " << value << std::endl << std::flush;

	}

};

int main(int argc, char** argv) {

	CLI cli(argc, argv);

	int resultCode = CLI::EXIT_CODE_UNEXPECTED_ERROR;

	try {

		// if (cli.arguments().size() > 0) {

		// const wstring commandName = cli.arguments()[0];

		// vector<wstring> arguments(cli.arguments().size() - 1);

		// for (int i = 1; i < cli.arguments().size(); i++) {

		//	arguments[i - 1] = cli.arguments()[i];

		// }

		std::shared_ptr<RelationalReader> reader(Factory::create(std::cin));

		DemoHandler handler;

		reader->addHandler(&handler);

		reader->process();

		resultCode = CLI::EXIT_CODE_SUCCESS;

		// } else {

		//	throw RelpipeCLIException(L"Missing command…", CLI::EXIT_CODE_BAD_SYNTAX);

		// }

	} 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;

	}

	return resultCode;

}