package crtest;

import java.lang.reflect.Constructor;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.entity.Player;

public class Title {
    
    private String nms;{
        String ver = Bukkit.getServer().getClass().getPackage().getName();
        nms = ver.substring(ver.lastIndexOf('.') + 1);
    }
    
    private String title;
    private String subtitle;
    private int fadeIn;
    private int time;
    private int fadeOut;
    
    public Title() {}
    
    public Title(String title, int fadeIn, int time, int fadeOut) {
        this.title = title;
        this.fadeIn = fadeIn;
        this.time = time;
        this.fadeOut = fadeOut;
    }
    
    public Title(String title, String subtitle, int fadeIn, int time, int fadeOut) {
        this.title = title;
        this.subtitle = subtitle;
        this.fadeIn = fadeIn;
        this.time = time;
        this.fadeOut = fadeOut;
    }
    
    public String getTitle() {
        return this.title;
    }
    
    public void setTitle(String title) {
        this.title = title;
    }
    
    public String getSubtitle() {
        return this.subtitle;
    }
    
    public void setSubtitle(String subtitle) {
        this.subtitle = subtitle;
    }
    
    public int getFadeIn() {
        return this.fadeIn;
    }
    
    public void setFadeIn(int fadeIn) {
        this.fadeIn = fadeIn;
    }
    
    public int getTime() {
        return this.time;
    }
    
    public void setTime(int time) {
        this.time = time;
    }
    
    public int getFadeOut() {
        return this.fadeOut;
    }
    
    public void setFadeOut(int fadeOut) {
        this.fadeOut = fadeOut;
    }
    
    public void send(Player p) {
        if(title == null) return;
        sendPacket(p, titlePacket(title, fadeIn, time, fadeOut));
        if(subtitle != null) sendPacket(p, subtitlePacket(subtitle, fadeIn, time, fadeOut));
    }
    
    private Class<?> getNMSClass(String name) {
        try {
            if(name.equals("IChatBaseComponent")) {
                return Class.forName("net.minecraft.server." + nms + ".IChatBaseComponent");
            } else if(name.equals("PacketPlayOutTitle")) {
                return Class.forName("net.minecraft.server." + nms + ".PacketPlayOutTitle");
            }else if(name.equals("Packet")) {
                return Class.forName("net.minecraft.server." + nms + ".Packet");
            }
        } catch(ClassNotFoundException ex) {}
        return null;
    }
    
    private Object titlePacket(String message, int fadeIn, int time, int fadeOut) {
        String json = "{\"text\":\""+ color(message) + "\"}";
        try {
            Object enumTitle = getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0].getField("TITLE").get(null);
            Object chat = getNMSClass("IChatBaseComponent").getDeclaredClasses()[0].getMethod("a", String.class).invoke(null, json);
            Constructor<?> titleConstructor = getNMSClass("PacketPlayOutTitle").getConstructor(getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0], getNMSClass("IChatBaseComponent"), int.class, int.class, int.class);
            return titleConstructor.newInstance(enumTitle, chat, fadeIn, time, fadeOut);
        } catch (Exception e) {}
        return null;
    }
    
    private Object subtitlePacket(String message, int fadeIn, int time, int fadeOut) {
        String json = "{\"text\":\""+ color(message) + "\"}";
        try {
            Object enumTitle = getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0].getField("SUBTITLE").get(null);
            Object chat = getNMSClass("IChatBaseComponent").getDeclaredClasses()[0].getMethod("a", String.class).invoke(null, json);
            Constructor<?> titleConstructor = getNMSClass("PacketPlayOutTitle").getConstructor(getNMSClass("PacketPlayOutTitle").getDeclaredClasses()[0], getNMSClass("IChatBaseComponent"), int.class, int.class, int.class);
            return titleConstructor.newInstance(enumTitle, chat, fadeIn, time, fadeOut);
        } catch (Exception e) {}
        return null;
    }
    
    private String color(String s) {
        return ChatColor.translateAlternateColorCodes('&', s);
    }

    private 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) {}
    }
}