/*
 * =====================================================================================
 *
 *  OpenMiner
 *
 *  Copyright (C) 2018-2020 Unarelith, Quentin Bazin <openminer@unarelith.net>
 *  Copyright (C) 2019-2020 the OpenMiner contributors (see CONTRIBUTORS.md)
 *
 *  This file is part of OpenMiner.
 *
 *  OpenMiner is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  OpenMiner 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with OpenMiner; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
 *
 * =====================================================================================
 */
#include <fstream>

#include <gk/core/Debug.hpp>
#include <gk/core/Filesystem.hpp>

#include <sol/sol.hpp>

#include <filesystem.hpp>

#include "Config.hpp"

namespace fs = ghc::filesystem;

// Gameplay
bool Config::isFlyModeEnabled = false;
bool Config::isNoClipEnabled = false;
u16 Config::maxBlockReach = 7;

// Interface
bool Config::isBlockInfoWidgetEnabled = true;
bool Config::isFpsCounterEnabled = true;
bool Config::isHotbarVisible = true;
bool Config::isCrosshairVisible = true;

// Graphics
u16 Config::renderDistance = 8;
u8 Config::ambientOcclusion = 1;
bool Config::isSmoothLightingEnabled = true;
bool Config::isWireframeModeEnabled = false;
bool Config::isFullscreenModeEnabled = false;
bool Config::isVerticalSyncEnabled = true;
bool Config::isStarRenderingEnabled = true;
float Config::cameraFOV = 70.0f;
u16 Config::screenWidth = 1600;
u16 Config::screenHeight = 1050;
u8 Config::guiScale = 3;
u8 Config::mipmapLevels = 0;

// Input
u8 Config::mouseSensitivity = 8;

// Other
std::string Config::defaultUsername = "";
std::string Config::defaultServerAddress = "localhost:4242";
std::string Config::texturePack = "";

void Config::loadConfigFromFile(const char *filename) {
	if (!fs::exists("config") && !fs::create_directory("config")) {
		gkError() << "Failed to create 'config' folder";
		return;
	}

	if (fs::exists(filename)) {
		sol::state lua;

		try {
			lua.safe_script_file(filename);

			isFlyModeEnabled = lua["isFlyModeEnabled"].get_or(isFlyModeEnabled);
			isNoClipEnabled = lua["isNoClipEnabled"].get_or(isNoClipEnabled);
			maxBlockReach = lua["maxBlockReach"].get_or(maxBlockReach);

			isBlockInfoWidgetEnabled = lua["isBlockInfoWidgetEnabled"].get_or(isBlockInfoWidgetEnabled);
			isFpsCounterEnabled = lua["isFpsCounterEnabled"].get_or(isFpsCounterEnabled);
			isHotbarVisible = lua["isHotbarVisible"].get_or(isHotbarVisible);
			isCrosshairVisible = lua["isCrosshairVisible"].get_or(isCrosshairVisible);

			renderDistance = lua["renderDistance"].get_or(renderDistance);
			ambientOcclusion = std::clamp<u8>(lua["ambientOcclusion"].get_or(ambientOcclusion), 0, 2);
			isSmoothLightingEnabled = lua["isSmoothLightingEnabled"].get_or(isSmoothLightingEnabled);
			isWireframeModeEnabled = lua["isWireframeModeEnabled"].get_or(isWireframeModeEnabled);
			isFullscreenModeEnabled = lua["isFullscreenModeEnabled"].get_or(isFullscreenModeEnabled);
			isVerticalSyncEnabled = lua["isVerticalSyncEnabled"].get_or(isVerticalSyncEnabled);
			isStarRenderingEnabled = lua["isStarRenderingEnabled"].get_or(isStarRenderingEnabled);
			cameraFOV = lua["cameraFOV"].get_or(cameraFOV);
			screenWidth = lua["screenWidth"].get_or(screenWidth);
			screenHeight = lua["screenHeight"].get_or(screenHeight);
			guiScale = std::clamp<u8>(lua["guiScale"].get_or(guiScale), 1, 3);
			mipmapLevels = std::clamp<u8>(lua["mipmapLevels"].get_or(mipmapLevels), 0, 4);

			mouseSensitivity = lua["mouseSensitivity"].get_or(mouseSensitivity);

			defaultUsername = lua["defaultUsername"].get_or(defaultUsername);
			defaultServerAddress = lua["defaultServerAddress"].get_or(defaultServerAddress);
			texturePack = lua["texturePack"].get_or(texturePack);

			gkInfo() << "Config file loaded successfully";
		}
		catch (sol::error &e) {
			gkError() << e.what();
		}
	}
}

void Config::saveConfigToFile(const char *filename) {
	std::ofstream file{filename, std::ofstream::out | std::ofstream::trunc};
	file << "isFlyModeEnabled = " << (isFlyModeEnabled ? "true" : "false") << std::endl;
	file << "isNoClipEnabled = " << (isNoClipEnabled ? "true" : "false") << std::endl;
	file << "maxBlockReach = " << maxBlockReach << std::endl;
	file << std::endl;
	file << "isBlockInfoWidgetEnabled = " << (isBlockInfoWidgetEnabled ? "true" : "false") << std::endl;
	file << "isFpsCounterEnabled = " << (isFpsCounterEnabled ? "true" : "false") << std::endl;
	file << "isHotbarVisible = " << (isHotbarVisible ? "true" : "false") << std::endl;
	file << "isCrosshairVisible = " << (isCrosshairVisible ? "true" : "false") << std::endl;
	file << std::endl;
	file << "renderDistance = " << renderDistance << std::endl;
	file << "ambientOcclusion = " << (u16)ambientOcclusion << std::endl;
	file << "isSmoothLightingEnabled = " << (isSmoothLightingEnabled ? "true" : "false") << std::endl;
	file << "isWireframeModeEnabled = " << (isWireframeModeEnabled ? "true" : "false") << std::endl;
	file << "isFullscreenModeEnabled = " << (isFullscreenModeEnabled ? "true" : "false") << std::endl;
	file << "isVerticalSyncEnabled = " << (isVerticalSyncEnabled ? "true" : "false") << std::endl;
	file << "isStarRenderingEnabled = " << (isStarRenderingEnabled ? "true" : "false") << std::endl;
	file << "cameraFOV = " << cameraFOV << std::endl;
	file << "screenWidth = " << screenWidth << std::endl;
	file << "screenHeight = " << screenHeight << std::endl;
	file << "guiScale = " << (u16)guiScale << std::endl;
	file << "mipmapLevels = " << (u16)mipmapLevels << std::endl;
	file << std::endl;
	file << "mouseSensitivity = " << (u16)mouseSensitivity << std::endl;
	file << std::endl;
	file << "defaultUsername = \"" << defaultUsername << "\"" << std::endl;
	file << "defaultServerAddress = \"" << defaultServerAddress << "\"" << std::endl;
	file << "texturePack = \"" << texturePack  << "\"" << std::endl;
}