/**

 * cadMousePro

 * Copyright © 2019 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 <vector>

#include "CLI.h"

#include "CLIConfiguration.h"

#include "CLIException.h"

class CLIParser {

private:

	std::wstring readNext(std::vector<std::wstring> arguments, int& i) {

		if (i < arguments.size()) return arguments[i++];

		else throw CLIException(L"Missing CLI argument" + (i > 0 ? (L" after " + arguments[i - 1]) : L""), CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

	}

	bool parseBoolean(std::wstring value) {

		if (value == L"true") return true;

		else if (value == L"false") return false;

		else throw CLIException(L"Unable to parse boolean value „" + value + L"“ – expecting „true“ or „false“", CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

	}

public:

	static Frequency parseFrequency(std::wstring value) {

		if (value == L"125") return Frequency::Hz_0125;

		else if (value == L"250") return Frequency::Hz_0250;

		else if (value == L"500") return Frequency::Hz_0500;

		else if (value == L"1000") return Frequency::Hz_1000;

		else throw CLIException(L"Unable to parse frequency value „" + value + L"“ – expecting „125“ or „250“ or „500“ or „1000“", CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

	}

	static const std::wstring OPTION_FREQUENCY;

	static const std::wstring OPTION_SMART_SCROLLING;

	static const std::wstring OPTION_LIFT_OFF_DETECTION;

	static const std::wstring OPTION_DAEMON;

	CLIConfiguration parse(const std::vector<std::wstring>& arguments) {

		CLIConfiguration c;

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

			std::wstring option = readNext(arguments, i);

			if (option == OPTION_FREQUENCY) {

				c.cadMouseConfig.setFrequency(parseFrequency(readNext(arguments, i)));

			} else if (option == OPTION_SMART_SCROLLING) {

				c.cadMouseConfig.setSmartScrolling(parseBoolean(readNext(arguments, i)));

			} else if (option == OPTION_LIFT_OFF_DETECTION) {

				c.cadMouseConfig.setLiftOffDetection(parseBoolean(readNext(arguments, i)));

			} else if (option == OPTION_DAEMON) {

				c.daemon = parseBoolean(readNext(arguments, i));

			} else throw CLIException(L"Unsupported CLI option: " + option, CLI::EXIT_CODE_BAD_CLI_ARGUMENTS);

		}

		return c;

	}

	virtual ~CLIParser() {

	}

};

const std::wstring CLIParser::OPTION_FREQUENCY = L"--frequency";

const std::wstring CLIParser::OPTION_SMART_SCROLLING = L"--smart-scrolling";

const std::wstring CLIParser::OPTION_LIFT_OFF_DETECTION = L"--lift-off-detection";

const std::wstring CLIParser::OPTION_DAEMON = L"--daemon";