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package de.enotrix.lobby;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.Server;
import org.bukkit.command.ConsoleCommandSender;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;


public class TitelAPI extends JavaPlugin implements Listener {

    @Deprecated
    public static void sendTitle(Player player, Integer fadeIn, Integer stay, Integer fadeOut, String message) {
        sendTitle(player, fadeIn, stay, fadeOut, message, null);
    }

    @Deprecated
    public static void sendSubtitle(Player player, Integer fadeIn, Integer stay, Integer fadeOut, String message) {
        sendTitle(player, fadeIn, stay, fadeOut, null, message);
    }

    @Deprecated
    public static void sendFullTitle(Player player, Integer fadeIn, Integer stay, Integer fadeOut, String title, String subtitle) {
        sendTitle(player, fadeIn, stay, fadeOut, title, subtitle);
    }

    public static void sendPacket(Player player, Object packet) {
        try {
            Object handle = player.getClass().getMethod("getHandle").invoke(player);
            Object playerConnection = handle.getClass().getField("playerConnection").get(handle);
            playerConnection.getClass().getMethod("sendPacket", getNMSClass("Packet")).invoke(playerConnection, packet);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static Class<?> getNMSClass(String name) {
        String version = Bukkit.getServer().getClass().getPackage().getName().split("\\.")[3];
        try {
            return Class.forName("net.minecraft.server." + version + "." + name);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static void sendTitle(Player player, Integer fadeIn, Integer stay, Integer fadeOut, String title, String subtitle) {
        try {
            if (title != null) {
                title = ChatColor.translateAlternateColorCodes('&', title);
                title = title.replaceAll("%player%", player.getDisplayName());
                Object enumTitle = getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0].getField("TITLE").get(null);
                Object chatTitle = getNMSClass("IChatBaseComponent").getDeclaredClasses()[0].getMethod("a", String.class).invoke(null, "{\"text\":\"" + title + "\"}");
                Constructor<?> titleConstructor = getNMSClass("PacketPlayOutTitle").getConstructor(getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0], getNMSClass("IChatBaseComponent"), int.class, int.class, int.class);
                Object titlePacket = titleConstructor.newInstance(enumTitle, chatTitle, fadeIn, stay, fadeOut);
                sendPacket(player, titlePacket);
            }

            if (subtitle != null) {
                subtitle = ChatColor.translateAlternateColorCodes('&', subtitle);
                subtitle = subtitle.replaceAll("%player%", player.getDisplayName());
                Object enumSubtitle = getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0].getField("SUBTITLE").get(null);
                Object chatSubtitle = getNMSClass("IChatBaseComponent").getDeclaredClasses()[0].getMethod("a", String.class).invoke(null, "{\"text\":\"" + subtitle + "\"}");
                Constructor<?> subtitleConstructor = getNMSClass("PacketPlayOutTitle").getConstructor(getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0], getNMSClass("IChatBaseComponent"), int.class, int.class, int.class);
                Object subtitlePacket = subtitleConstructor.newInstance(enumSubtitle, chatSubtitle, fadeIn, stay, fadeOut);
                sendPacket(player, subtitlePacket);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static void sendTabTitle(Player player, String header, String footer) {
        if (header == null) header = "";
        header = ChatColor.translateAlternateColorCodes('&', header);

        if (footer == null) footer = "";
        footer = ChatColor.translateAlternateColorCodes('&', footer);

        header = header.replaceAll("%player%", player.getDisplayName());
        footer = footer.replaceAll("%player%", player.getDisplayName());

        try {
            Object tabHeader = getNMSClass("IChatBaseComponent").getDeclaredClasses()[0].getMethod("a", String.class).invoke(null, "{\"text\":\"" + header + "\"}");
            Object tabFooter = getNMSClass("IChatBaseComponent").getDeclaredClasses()[0].getMethod("a", String.class).invoke(null, "{\"text\":\"" + footer + "\"}");
            Constructor<?> titleConstructor = getNMSClass("PacketPlayOutPlayerListHeaderFooter").getConstructor(getNMSClass("IChatBaseComponent"));
            Object packet = titleConstructor.newInstance(tabHeader);
            Field field = packet.getClass().getDeclaredField("b");
            field.setAccessible(true);
            field.set(packet, tabFooter);
            sendPacket(player, packet);
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public void onEnable() {
        getConfig().options().copyDefaults(true);
        saveConfig();
        Server server = getServer();
        ConsoleCommandSender console = server.getConsoleSender();

        console.sendMessage("");
        console.sendMessage(ChatColor.BLUE + "-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-");
        console.sendMessage("");
        console.sendMessage(ChatColor.AQUA + getDescription().getName());
        console.sendMessage(ChatColor.AQUA + "Version " + getDescription().getVersion());
        console.sendMessage("");
        console.sendMessage(ChatColor.BLUE + "-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-");
        console.sendMessage("");

        Bukkit.getPluginManager().registerEvents(this, this);
    }

    @EventHandler
    public void onPlayerJoin(PlayerJoinEvent event) {
        if (getConfig().getBoolean("Title On Join")) {
            sendTitle(event.getPlayer(), 20, 50, 20, getConfig().getString("Title Message"), getConfig().getString("Subtitle Message"));
        }

        if (getConfig().getBoolean("Tab Header Enabled")) {
            sendTabTitle(event.getPlayer(), getConfig().getString("Tab Header Message"), getConfig().getString("Tab Footer Message"));
        }
    }

    public void onDisable() {
        getLogger().info(getDescription().getName() + " has been disabled!");
    }

}