#pragma once

#include <cstdlib>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>

#include <relpipe/writer/typedefs.h>
#include <relpipe/writer/AttributeMetadata.h>

#include "Command.h"

namespace relpipe {
namespace in {
namespace cli {

class ArgumentsCommand : public Command {
public:

	void process(std::istream& input, std::ostream& output, const relpipe::writer::string_t& command, const std::vector<relpipe::writer::string_t>& arguments) override {
		using namespace relpipe::writer;

		size_t i = 0;
		string_t relationName = arguments[i++];
		integer_t attributeCount = std::stoul(arguments[i++]); // TODO: use integer data type's method?
		boolean_t writeHeader = true; // TODO: add option for header omitting

		// TODO: check argument count

		std::shared_ptr<RelationalWriter> writer(Factory::create(output));

		std::vector<AttributeMetadata> attributes(attributeCount);

		for (size_t j = 0; j < attributeCount; j++) {
			string_t attributeName = arguments[i++];
			TypeId attributeType = writer->toTypeId(arguments[i++]);
			attributes[j] = {attributeName, attributeType};
		}

		writer->startRelation(relationName, attributes, writeHeader);

		for (; i < arguments.size(); i++) {
			writer->writeAttribute(arguments[i]);
		}
	}
};

}
}
}