package it.evermine.swordbuffs;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.Sound;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerItemHeldEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class SwordBuffs extends JavaPlugin implements Listener {

    @Override
    public void onEnable() {
        getCommand("addbuff").setExecutor(new AddBuff());
        getServer().getPluginManager().registerEvents(this, this);
    }

    @EventHandler
    public void onHeld(PlayerItemHeldEvent e) {
        ItemStack newer = e.getPlayer().getInventory().getItem(e.getNewSlot());
        ItemStack old = e.getPlayer().getInventory().getItem(e.getPreviousSlot());

        int hasSword = isSword(newer) ? 1 : (isSword(old) ? 0 : -1);

        if(hasSword != -1) {
            final Player p = e.getPlayer();

            if(hasSword == 1)
                sendEffectsToPlayer(p, getFastEffects(newer.getItemMeta().getLore()));
            else
                removeEffectsToPlayer(p, getFastTypes(old.getItemMeta().getLore()));

            p.playSound(e.getPlayer().getLocation(), Sound.NOTE_BASS, 5, hasSword == 1 ? -5 : 5);

        }
    }

    private void removeEffectsToPlayer(Player p, ArrayList<PotionEffectType> fastEffects) {
        for(PotionEffectType pe : fastEffects) {
            p.removePotionEffect(pe);
        }
    }

    public static boolean isSword(ItemStack is) {
        return is != null && is.getType() == Material.DIAMOND_SWORD && is.getItemMeta() != null && is.getItemMeta().getDisplayName() != null && is.getItemMeta().getDisplayName().contains("§8[§cPowered§8]");
    }

//    public ArrayList<PotionEffect> getPotions(ArrayList<String> lore) {
//        ArrayList<PotionEffect> effects = new ArrayList<PotionEffect>();
//
//        effects.addAll(p.getActivePotionEffects());
//        return effects;
//    }

    private ItemStack createSword(String name, PotionEffect starter) {
        ItemStack is = new ItemStack(Material.DIAMOND_SWORD, 1);
        ItemMeta im = is.getItemMeta();
        im.setDisplayName("§8[§cPowered§8] §7"+name+"'s Sword");

        List<String> lore = new ArrayList<>();
        lore.add("§r");
        lore.add("§7Enchants:");
        lore.add("§8- §f"+starter.getType().getName()+" "+toRoman(starter.getAmplifier()));
        lore.add("§r");
        lore.add("§7Per cambiare slot alla");
        lore.add("§7spada, digita §a/slotchange");

        im.setLore(lore);
        is.setItemMeta(im);

        return is;
    }

    public static void sendEffectsToPlayer(Player p, ArrayList<PotionEffect> types) {
        for(PotionEffect po : types) {
            p.addPotionEffect(po, true);
        }
    }

    public static ArrayList<PotionEffectType> getFastTypes(List<String> lore) {
        ArrayList<PotionEffectType> effects = new ArrayList<>();

        for(int i = 2; i < lore.size() - 3; i++)
            effects.add(PotionEffectType.getByName(lore.get(i).split("\\s+")[1].replace("§f", "")));
        return effects;
    }

    public static ArrayList<PotionEffect> getFastEffects(List<String> lore) {
        ArrayList<PotionEffect> effects = new ArrayList<>();

        for(int i = 2; i < lore.size() - 3; i++) {
            String[] parts = lore.get(i).split("\\s+");
            effects.add(new PotionEffect(PotionEffectType.getByName(parts[1].replace("§f", "")), Integer.MAX_VALUE, toNumber(parts[2])));
        }
        return effects;

    }

    public static HashMap<PotionEffectType, Integer> getEffects(ItemStack is) {
        HashMap<PotionEffectType, Integer> effects = new HashMap<>();
        List<String> lore = new ArrayList<>();
        ItemMeta im = is.getItemMeta();
        lore.addAll(im.getLore());

        for(int i = 2; i < lore.size() - 3; i++) {
            String[] parts = lore.get(i).split("\\s+");
            effects.put(PotionEffectType.getByName(parts[1].replace("§f", "")), toNumber(parts[2]));
        }

        return effects;
    }

    public static void addEffect(ItemStack is, PotionEffect starter) {
        List<String> lore = new ArrayList<>();
        ItemMeta im = is.getItemMeta();
        lore.addAll(im.getLore());
        lore.add(2, "§8- §f"+starter.getType().getName()+" "+toRoman(starter.getAmplifier()));
        im.setLore(lore);
        is.setItemMeta(im);
    }

    static void createSword(String name, ItemStack is, PotionEffect starter) {
        ItemMeta im = is.getItemMeta();
        im.setDisplayName("§8[§cPowered§8] §7"+name+"'s Sword");

        List<String> lore = new ArrayList<>();
        lore.add("§r");
        lore.add("§7Enchants:");
        lore.add("§8- §f"+starter.getType().getName()+" "+toRoman(starter.getAmplifier()));
        lore.add("§r");
        lore.add("§7Per cambiare slot alla");
        lore.add("§7spada, digita §a/slotchange");

        im.setLore(lore);
        is.setItemMeta(im);
    }

    private static Integer toNumber(String roman) {
        return roman.replace("CM", "DCD")
                .replace("M", "DD")
                .replace("CD", "CCCC")
                .replace("D", "CCCCC")
                .replace("XC", "LXL")
                .replace("C", "LL")
                .replace("XL", "XXXX")
                .replace("L", "XXXXX")
                .replace("IX", "VIV")
                .replace("X", "VV")
                .replace("IV", "IIII")
                .replace("V", "IIIII").length();
    }

    private static String toRoman(int number) {
        return String.valueOf(new char[number]).replace('\0', 'I')
                .replace("IIIII", "V")
                .replace("IIII", "IV")
                .replace("VV", "X")
                .replace("VIV", "IX")
                .replace("XXXXX", "L")
                .replace("XXXX", "XL")
                .replace("LL", "C")
                .replace("LXL", "XC")
                .replace("CCCCC", "D")
                .replace("CCCC", "CD")
                .replace("DD", "M")
                .replace("DCD", "CM");
    }
}