package eu.mhsl.craftattack.loginServer;

import eu.mhsl.craftattack.loginServer.listeners.Listener;
import net.minestom.server.Auth;
import net.minestom.server.MinecraftServer;
import net.minestom.server.extras.lan.OpenToLAN;
import org.spongepowered.configurate.ConfigurationNode;
import org.spongepowered.configurate.yaml.YamlConfigurationLoader;

import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.logging.Logger;

public class Main {

    private static final Logger logger = Logger.getLogger(Main.class.getName());

    public static ConfigurationNode globalConfig;

    static void main(String[] args) throws IOException {
        Path configPath = Path.of("resources", "config.yml");

        if (Files.notExists(configPath)) {
            Files.createDirectories(configPath.getParent());
            try (InputStream in = Main.class.getResourceAsStream("/config.yml")) {
                if (in == null) {
                    throw new IllegalStateException("config.yml fehlt in src/main/resources!");
                }
                Files.copy(in, configPath);
            }
        }

        globalConfig = YamlConfigurationLoader.builder().path(configPath).build().load();

        ConfigurationNode serverConfig = globalConfig.node("server");

        int viewDistance = serverConfig.node("view-distance").getInt(12);
        if (viewDistance > 0) {
            System.setProperty("minestom.chunk-view-distance", String.valueOf(viewDistance));
        }

        logger.info("Initialisiere Minecraft-Server ...");

        Auth auth = new Auth.Online();
        if (globalConfig.node("bungeecord", "enabled").getBoolean(false)) {
            auth = new Auth.Bungee();
        } else if (globalConfig.node("velocity", "enabled").getBoolean(false)) {
            String secret = globalConfig.node("velocity", "secret").getString("");
            if (secret.isBlank()) {
                throw new IllegalStateException("Velocity ist aktiviert, aber das Secret fehlt!");
            }
            auth = new Auth.Velocity(secret);
        }

        MinecraftServer server = MinecraftServer.init(auth);
        MinecraftServer.setCompressionThreshold(serverConfig.node("compression-threshold").getInt(0));

        Listener.registerAll(
                MinecraftServer.getGlobalEventHandler(),
                MinecraftServer.getInstanceManager()
        );

        if (serverConfig.node("open-to-lan").getBoolean(false)) {
            OpenToLAN.open();
        }

        int port = serverConfig.node("port").getInt(25565);
        logger.info("Starte Minecraft-Server auf Port " + port + " ...");
        server.start("0.0.0.0", port);
    }
}