package cn.citycraft.TellRaw.manual;

import java.io.IOException;
import java.io.StringWriter;
import java.util.Map;
import java.util.logging.Level;

import org.bukkit.Bukkit;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;

import cn.citycraft.GsonAgent.GsonAgent;
import cn.citycraft.GsonAgent.api.stream.JsonWriter;
import cn.citycraft.TellRaw.common.JsonRepresentedObject;

/**
 * 序列化Item的类
 *
 * @since 2015年12月14日 下午1:30:51
 * @author 许凯
 */
public class GItemStack implements JsonRepresentedObject {
	private final ItemStack item;
	private final String jsonString;

	protected GItemStack(final ItemStack item) {
		this.item = item.clone();
		final StringWriter string = new StringWriter();
		final JsonWriter json = GsonAgent.newJsonWriter(string);
		try {
			this.writeJson(json);
			json.close();
		} catch (final IOException e) {
			throw new RuntimeException("invalid message:", e);
		}
		this.jsonString = string.toString();
	}

	@Override
	public String toString() {
		return this.jsonString;
	}

	@Override
	public void writeJson(final JsonWriter json) throws IOException {
		try {
			json.beginObject();
			json.nameWithoutQuotes("id").value(this.item.getTypeId());
			json.nameWithoutQuotes("Damage").value(this.item.getDurability());
			if (this.item.getAmount() > 1) {
				json.nameWithoutQuotes("Count").value(this.item.getAmount());
			}
			if (this.item.hasItemMeta()) {
				json.nameWithoutQuotes("tag").beginObject();
				final ItemMeta im = item.getItemMeta();
				if (im.hasEnchants()) {
					json.nameWithoutQuotes("ench").beginArray();
					for (final Map.Entry<Enchantment, Integer> ench : im.getEnchants().entrySet()) {
						json.beginObject().nameWithoutQuotes("id").value(ench.getKey().getId()).nameWithoutQuotes("lvl").value(ench.getValue()).endObject();
					}
					json.endArray();
				}
				if (im.hasDisplayName() || im.hasLore()) {
					json.nameWithoutQuotes("display").beginObject();
					if (im.hasDisplayName()) {
						json.nameWithoutQuotes("Name").value(im.getDisplayName());
					}
					if (im.hasLore()) {
						json.nameWithoutQuotes("Lore").beginArray();
						for (final String line : im.getLore()) {
							json.value(line);
						}
						json.endArray();
					}
					json.endObject();
				}
				json.endObject();
			}
			json.endObject();
		} catch (final IOException e) {
			Bukkit.getLogger().log(Level.WARNING, "A problem occured during writing of JSON string", e);
		}
	}
}