package mineplex.game.clans.items;
 
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.UUID;

import mineplex.game.clans.items.attributes.AttributeContainer;
import mineplex.game.clans.items.attributes.ItemAttribute;
import mineplex.minecraft.game.core.damage.CustomDamageEvent;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.event.entity.EntityDamageByEntityEvent;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

/**
 * Represents a customizable wrapper for an {@link ItemStack}, enabling the possession
 * of special abilities, attributes, and triggers on item.
 * @author MrTwiggy
 *
 */
public class CustomItem 
{

	private static final ChatColor TITLE_COLOR = ChatColor.GOLD;		// Chat color used for item display name
	private static final ChatColor ATTRIBUTE_COLOR = ChatColor.WHITE;	// Chat color used for attribute descriptions
	
	private AttributeContainer _attributes;
	public AttributeContainer getAttributes() { return _attributes; }
	
	protected String _displayName;
	private String _description;
	private Material _material;
	
	private String _uuid;	
	public String getUuid() { return _uuid; }
	
	public CustomItem(String displayName, String description, Material material)
	{
		_displayName = displayName;
		_description = description;
		_material = material;
		_attributes = new AttributeContainer();
		_uuid = UUID.randomUUID().toString();
	}
	
	public CustomItem(Material material)
	{
		this(prettifyName(material), null, material);
	}
	
	/**
	 * @return the name displayed to players for the item.
	 */
	public String getDisplayName()
	{
		return ChatColor.RESET.toString() + TITLE_COLOR + _attributes.formatItemName(_displayName);
	}
	
	public String getDescription()
	{
		return _description;
	}
	
	public List<String> getLore()
	{
		List<String> lore = new ArrayList<String>();
		
		if (getDescription() != null)
		{
			lore.add(getDescription());
		}
		
		// Display attribute descriptions and stats in lore
		for (ItemAttribute attribute : _attributes.getAttributes())
		{
			String attributeLine = ATTRIBUTE_COLOR + "• " + attribute.getDescription();
			lore.add(attributeLine);
		}
		
		// Add encoded JSON form of this item, not seen by user.
		String serialization = GearManager.getItemSerialization(this);
		lore.add(serialization);
		
		return lore;
	}
	
	public ItemStack toItemStack(int amount)
	{
		ItemStack item = new ItemStack(_material, amount);
		update(item);
		
		// TODO: Add non-descript enchantment for glowing efect?
		return item;
	}
	
	public ItemStack toItemStack()
	{
		return toItemStack(1);
	}
	
	public void onInteract(PlayerInteractEvent event)
	{
		for (ItemAttribute attribute : _attributes.getAttributes())
		{
			attribute.onInteract(event);
		}
	}
	
	public void onAttack(CustomDamageEvent event)
	{
		for (ItemAttribute attribute : _attributes.getAttributes())
		{
			attribute.onAttack(event);
		}
	}
	
	public void onAttacked(CustomDamageEvent event)
	{
		for (ItemAttribute attribute : _attributes.getAttributes())
		{
			attribute.onAttacked(event);
		}
	}
	
	/**
	 * @param item - the item to check for a matching link
	 * @return true, if {@code item} matches this CustomItem via UUID, false otherwise.
	 */
	public boolean matches(CustomItem item)
	{
		return item.getUuid().equals(_uuid);
	}

	/**
	 * Update {@code item} with the proper meta properties suited for this 
	 * {@link CustomItem}.
	 * @param item - the item whose meta properties are being updated to become a version of this updated custom item.
	 */
	public void update(ItemStack item)
	{
		ItemMeta meta = item.getItemMeta();
		
		String displayName = getDisplayName();
		List<String> lore = getLore();
		
		meta.setDisplayName(displayName);
		meta.setLore(lore);
		
		item.setItemMeta(meta);
	}
	
	public static String prettifyName(Material material)
	{
		String name = "";
		String[] words = material.toString().split("_");
		
		for (String word : words)
		{
			word = word.toLowerCase();
			name += word.substring(0, 1).toUpperCase() + word.substring(1) + " ";
		}
		
		return name;
	}
}