/*
 * This file is a part of the SteamWar software.
 *
 * Copyright (C) 2021  SteamWar.de-Serverteam
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package de.steamwar.bausystem.utils;

import com.comphenix.tinyprotocol.TinyProtocol;
import lombok.experimental.UtilityClass;
import org.bukkit.Bukkit;
import org.bukkit.entity.Player;

import java.util.HashMap;
import java.util.Map;
import java.util.function.BiFunction;

@UtilityClass
public class ProtocolAPI {

    private static final Map<Class<?>, BiFunction<Player, Object, Object>> outgoingHandler = new HashMap<>();
    private static final Map<Class<?>, BiFunction<Player, Object, Object>> incomingHandler = new HashMap<>();

    static {
        TinyProtocol.instance.setOutFilter((receiver, channel, packet) -> {
            BiFunction<Player, Object, Object> handler = outgoingHandler.get(packet.getClass());
            if (handler == null)
                return packet;
            return handler.apply(receiver, packet);
        });
        TinyProtocol.instance.setInFilter((sender, channel, packet) -> {
            BiFunction<Player, Object, Object> handler = incomingHandler.get(packet.getClass());
            if (handler == null)
                return packet;
            return handler.apply(sender, packet);
        });
    }

    public static void setOutgoingHandler
            (Class<?> packetClass, BiFunction<Player, Object, Object> handler) {
        outgoingHandler.put(packetClass, handler);
    }

    public static void removeOutgoingHandler(Class<?> packetClass) {
        outgoingHandler.remove(packetClass);
    }

    public static void setIncomingHandler
            (Class<?> packetClass, BiFunction<Player, Object, Object> handler) {
        incomingHandler.put(packetClass, handler);
    }

    public static void removeIncomingHandler(Class<?> packetClass) {
        incomingHandler.remove(packetClass);
    }

    public static void broadcastPacket(Object packet) {
        Bukkit.getOnlinePlayers().stream().map(TinyProtocol.instance::getChannel).filter(TinyProtocol.instance::hasInjected).forEach(channel -> TinyProtocol.instance.sendPacket(channel, packet));
    }
}