// SPDX-License-Identifier: GPL-3.0-only
/*
 *  Prism Launcher - Minecraft Launcher
 *  Copyright (C) 2022 icelimetea <fr3shtea@outlook.com>
 *  Copyright (C) 2022 TheKodeToad <TheKodeToad@proton.me>
 *  Copyright (C) 2022 solonovamax <solonovamax@12oclockpoint.com>
 *
 *  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.
 *
 *  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.
 *
 *  Linking this library statically or dynamically with other modules is
 *  making a combined work based on this library. Thus, the terms and
 *  conditions of the GNU General Public License cover the whole
 *  combination.
 *
 *  As a special exception, the copyright holders of this library give
 *  you permission to link this library with independent modules to
 *  produce an executable, regardless of the license terms of these
 *  independent modules, and to copy and distribute the resulting
 *  executable under terms of your choice, provided that you also meet,
 *  for each linked independent module, the terms and conditions of the
 *  license of that module. An independent module is a module which is
 *  not derived from or based on this library. If you modify this
 *  library, you may extend this exception to your version of the
 *  library, but you are not obliged to do so. If you do not wish to do
 *  so, delete this exception statement from your version.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * This file incorporates work covered by the following copyright and
 * permission notice:
 *
 *      Copyright 2013-2021 MultiMC Contributors
 *
 *      Licensed under the Apache License, Version 2.0 (the "License");
 *      you may not use this file except in compliance with the License.
 *      You may obtain a copy of the License at
 *
 *          http://www.apache.org/licenses/LICENSE-2.0
 *
 *      Unless required by applicable law or agreed to in writing, software
 *      distributed under the License is distributed on an "AS IS" BASIS,
 *      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *      See the License for the specific language governing permissions and
 *      limitations under the License.
 */

package org.prismlauncher.launcher.impl;

import org.prismlauncher.utils.Parameters;
import org.prismlauncher.utils.ReflectionUtils;

import java.lang.invoke.MethodHandle;
import java.util.Collections;
import java.util.List;

public final class StandardLauncher extends AbstractLauncher {
    private final boolean quickPlayMultiplayerSupported;
    private final boolean quickPlaySingleplayerSupported;

    public StandardLauncher(Parameters params) {
        super(params);

        List<String> traits = params.getList("traits", Collections.<String>emptyList());
        quickPlayMultiplayerSupported = traits.contains("feature:is_quick_play_multiplayer");
        quickPlaySingleplayerSupported = traits.contains("feature:is_quick_play_singleplayer");
    }

    @Override
    public void launch() throws Throwable {
        // window size, title and state
        gameArgs.add("--width");
        gameArgs.add(Integer.toString(width));
        gameArgs.add("--height");
        gameArgs.add(Integer.toString(height));

        if (serverAddress != null) {
            if (quickPlayMultiplayerSupported) {
                // as of 23w14a
                gameArgs.add("--quickPlayMultiplayer");
                gameArgs.add(serverAddress + ':' + serverPort);
            } else {
                gameArgs.add("--server");
                gameArgs.add(serverAddress);
                gameArgs.add("--port");
                gameArgs.add(serverPort);
            }
        } else if (worldName != null && quickPlaySingleplayerSupported) {
            gameArgs.add("--quickPlaySingleplayer");
            gameArgs.add(worldName);
        }

        StringBuilder joinedGameArgs = new StringBuilder();
        for (String gameArg : gameArgs) {
            if (joinedGameArgs.length() > 0) {
                joinedGameArgs.append('\u001F'); // unit separator, designed for this purpose
            }
            joinedGameArgs.append(gameArg);
        }

        // pass the real main class and game arguments in so mods can access them
        System.setProperty("org.prismlauncher.launch.mainclass", mainClassName);
        // unit separator ('\u001F') delimited list of game args
        System.setProperty("org.prismlauncher.launch.gameargs", joinedGameArgs.toString());

        // find and invoke the main method
        MethodHandle method = ReflectionUtils.findMainMethod(mainClassName);
        method.invokeExact(gameArgs.toArray(new String[0]));
    }
}
