/*
 *   This file is a part of the SteamWar software.
 *
 *   Copyright (C) 2025 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.velocitycore.listeners;

import com.velocitypowered.api.event.Subscribe;
import com.velocitypowered.api.event.player.ServerConnectedEvent;
import com.velocitypowered.api.network.ProtocolVersion;
import com.velocitypowered.api.proxy.Player;
import com.velocitypowered.api.proxy.server.ServerInfo;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.velocity.platform.VelocityViaConfig;
import de.steamwar.linkage.Linked;
import de.steamwar.messages.Chatter;
import de.steamwar.network.packets.server.ClientVersionPacket;
import de.steamwar.persistent.Subserver;
import de.steamwar.velocitycore.VelocityCore;
import de.steamwar.velocitycore.network.NetworkSender;

import java.time.Duration;
import java.time.temporal.ChronoUnit;

@Linked
public class VersionAnnouncer extends BasicListener {

    @Subscribe
    public void postConnect(ServerConnectedEvent e) {
        ServerInfo server = e.getServer().getServerInfo();
        Player player = e.getPlayer();
        int serverVersion = ((VelocityViaConfig) Via.getConfig()).getVelocityServerProtocols().get(server.getName());

        int playerVersion = Via.getAPI().getPlayerVersion(player);
        ProtocolVersion protocolVersion = ProtocolVersion.getProtocolVersion(serverVersion);
        if (protocolVersion.isSupported()) {
            // PluginChannel 'vv:proxy_details' from ViaVersion apparently does not work any longer!
            VelocityCore.schedule(() -> {
                if (player.getCurrentServer().isEmpty()) return;
                String[] strings = protocolVersion.getVersionIntroducedIn().split("\\.");
                NetworkSender.send(player, new ClientVersionPacket(player.getUniqueId(), Integer.parseInt(strings[1])));
            }).delay(Duration.of(100, ChronoUnit.MILLIS)).schedule();
        }

        if (playerVersion == serverVersion) return;

        if (!Subserver.isBuild(Subserver.getSubserver(server))) return;

        player.sendActionBar(Chatter.of(player).parse("SERVER_VERSION", ProtocolVersion.getProtocolVersion(serverVersion).getMostRecentSupportedVersion()));
    }
}
