/*
 * This file is part of LanternServer, licensed under the MIT License (MIT).
 *
 * Copyright (c) LanternPowered <https://www.lanternpowered.org>
 * Copyright (c) SpongePowered <https://www.spongepowered.org>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the Software), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.lanternpowered.server.game.registry.type.world;

import com.google.common.collect.ImmutableSet;
import org.lanternpowered.server.world.rules.RuleTypes;
import org.spongepowered.api.registry.RegistryModule;
import org.spongepowered.api.world.gamerule.DefaultGameRules;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.Collection;
import java.util.Set;

public final class DefaultGameRulesRegistryModule implements RegistryModule {

    private Set<String> rules;

    @Override
    public void registerDefaults() {
       final ImmutableSet.Builder<String> builder = ImmutableSet.builder();
        for (Field field : DefaultGameRules.class.getFields()) {
            if (Modifier.isStatic(field.getModifiers()) && field.getType() == String.class) {
                try {
                    builder.add((String) field.get(null));
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        this.rules = builder.build();
        RuleTypes.init();
    }

    public Collection<String> get() {
        return this.rules;
    }

}