/**
 * MrCrayfish's Furniture Mod
 * Copyright (C) 2016  MrCrayfish (http://www.mrcrayfish.com/)
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.mrcrayfish.furniture.gui;

import org.lwjgl.input.Keyboard;
import org.lwjgl.opengl.GL11;

import com.mrcrayfish.furniture.gui.containers.ContainerEnvelope;
import com.mrcrayfish.furniture.gui.inventory.InventoryEnvelope;
import com.mrcrayfish.furniture.init.FurnitureItems;
import com.mrcrayfish.furniture.network.PacketHandler;
import com.mrcrayfish.furniture.network.message.MessageEnvelope;
import com.mrcrayfish.furniture.util.NBTHelper;

import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.text.TextComponentString;

public class GuiEnvelope extends GuiContainer
{
	private static final ResourceLocation gui = new ResourceLocation("cfm:textures/gui/envelope.png");
	private GuiButton buttonOk;
	private EntityPlayer player;
	private InventoryEnvelope inventory;
	private ItemStack mail;

	public GuiEnvelope(InventoryPlayer inventoryplayer, IInventory inventoryMail, EntityPlayer player, ItemStack mail)
	{
		super(new ContainerEnvelope(inventoryplayer, inventoryMail));
		this.player = player;
		this.inventory = (InventoryEnvelope) inventoryMail;
		this.mail = mail;
	}

	protected void drawGuiContainerForegroundLayer(int par1, int par2)
	{
		this.fontRendererObj.drawString("Envelope", xSize / 2 - 22, 5, 9999999);
		this.fontRendererObj.drawString("Inventory", 8, (ySize - 96) + 2, 4210752);
	}

	protected void drawGuiContainerBackgroundLayer(float f, int i, int j)
	{
		GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
		this.mc.getTextureManager().bindTexture(gui);
		int l = (width - xSize) / 2;
		int i1 = (height - ySize) / 2;
		this.drawTexturedModalRect(l, i1, 0, 0, xSize, ySize);
	}

	@Override
	public void initGui()
	{
		super.initGui();
		Keyboard.enableRepeatEvents(false);
		
		buttonList.clear();
		
		int posX = width / 2 + 40;
		int posY = height / 2 - 50;
		
		if (mail.getItem() == FurnitureItems.itemEnvelope)
		{
			buttonOk = new GuiButton(0, posX, posY, 40, 20, "Sign");
			buttonOk.enabled = true;
			buttonList.add(buttonOk);
		}
	}

	@Override
	public void onGuiClosed()
	{
		super.onGuiClosed();
		this.inventory.saveInventory();
	}

	@Override
	protected void actionPerformed(GuiButton guibutton)
	{
		if (!guibutton.enabled)
		{
			return;
		}
		if (guibutton.id == 0)
		{
			NBTTagList list = (NBTTagList) NBTHelper.getCompoundTag(mail, "Envelope").getTag("Items");
			if (list.tagCount() > 0)
			{
				PacketHandler.INSTANCE.sendToServer(new MessageEnvelope(this.mail));
				this.mc.displayGuiScreen(null);
			}
			else
			{
				this.player.addChatMessage(new TextComponentString("You cannot sign an empty envelope."));
			}
		}
	}
}