/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.client.gui.implementations;


import appeng.client.gui.AEBaseGui;
import appeng.client.gui.widgets.GuiNumberBox;
import appeng.container.implementations.ContainerCraftAmount;
import appeng.core.AEConfig;
import appeng.core.localization.GuiText;
import appeng.core.sync.network.NetworkHandler;
import appeng.core.sync.packets.PacketCraftRequest;
import net.minecraft.client.gui.widget.button.Button;
import net.minecraft.client.util.InputMappings;
import net.minecraft.entity.player.PlayerInventory;
import net.minecraft.util.text.ITextComponent;
import net.minecraftforge.fml.client.gui.GuiUtils;


public class GuiCraftAmount extends AEBaseGui<ContainerCraftAmount>
{
	private final AESubGui subGui;

	private GuiNumberBox amountToCraft;

	private Button next;

	public GuiCraftAmount(ContainerCraftAmount container, PlayerInventory playerInventory, ITextComponent title) {
		super(container, playerInventory, title);
		this.subGui = new AESubGui(this, container.getTarget());
	}

	@Override
	public void init()
	{
		super.init();

		final int a = AEConfig.instance().craftItemsByStackAmounts( 0 );
		final int b = AEConfig.instance().craftItemsByStackAmounts( 1 );
		final int c = AEConfig.instance().craftItemsByStackAmounts( 2 );
		final int d = AEConfig.instance().craftItemsByStackAmounts( 3 );

		this.addButton( new Button(this.guiLeft + 20, this.guiTop + 26, 22, 20, "+" + a, btn -> addQty(a) ) );
		this.addButton( new Button(this.guiLeft + 48, this.guiTop + 26, 28, 20, "+" + b, btn -> addQty(b) ) );
		this.addButton( new Button(this.guiLeft + 82, this.guiTop + 26, 32, 20, "+" + c, btn -> addQty(c) ) );
		this.addButton( new Button(this.guiLeft + 120, this.guiTop + 26, 38, 20, "+" + d, btn -> addQty(d) ) );

		this.addButton( new Button(this.guiLeft + 20, this.guiTop + 75, 22, 20, "-" + a, btn -> addQty(-a) ) );
		this.addButton( new Button(this.guiLeft + 48, this.guiTop + 75, 28, 20, "-" + b, btn -> addQty(-b) ) );
		this.addButton( new Button(this.guiLeft + 82, this.guiTop + 75, 32, 20, "-" + c, btn -> addQty(-c) ) );
		this.addButton( new Button(this.guiLeft + 120, this.guiTop + 75, 38, 20, "-" + d, btn -> addQty(-d) ) );

		this.next = this.addButton(new Button(this.guiLeft + 128, this.guiTop + 51, 38, 20, GuiText.Next.getLocal(), this::confirm ));

		subGui.addBackButton(this::addButton, 154, 0);

		this.amountToCraft = new GuiNumberBox( this.font, this.guiLeft + 62, this.guiTop + 57, 59, this.font.FONT_HEIGHT, Integer.class );
		this.amountToCraft.setEnableBackgroundDrawing( false );
		this.amountToCraft.setMaxStringLength( 16 );
		this.amountToCraft.setTextColor( 0xFFFFFF );
		this.amountToCraft.setVisible( true );
		this.amountToCraft.setFocused2( true );
		this.amountToCraft.setText( "1" );
	}

	private void confirm(Button button) {
		NetworkHandler.instance().sendToServer( new PacketCraftRequest( Integer.parseInt( this.amountToCraft.getText() ), hasShiftDown() ) );
	}

	@Override
	public void drawFG( final int offsetX, final int offsetY, final int mouseX, final int mouseY )
	{
		this.font.drawString( GuiText.SelectAmount.getLocal(), 8, 6, 4210752 );
	}

	@Override
	public void drawBG(final int offsetX, final int offsetY, final int mouseX, final int mouseY, float partialTicks)
	{
		this.next.setMessage(hasShiftDown() ? GuiText.Start.getLocal() : GuiText.Next.getLocal());

		this.bindTexture( "guis/craft_amt.png" );
		GuiUtils.drawTexturedModalRect( offsetX, offsetY, 0, 0, this.xSize, this.ySize, getBlitOffset() );

		try
		{
			Long.parseLong( this.amountToCraft.getText() );
			this.next.active = !this.amountToCraft.getText().isEmpty();
		}
		catch( final NumberFormatException e )
		{
			this.next.active = false;
		}

		this.amountToCraft.render(offsetX, offsetY, partialTicks);
	}

	@Override
	public boolean charTyped(char ch, int p_charTyped_2_) {
		// Forward entered text to the craft amount text-field
		return this.amountToCraft.charTyped(ch, p_charTyped_2_);
	}

	@Override
	public boolean keyPressed(int keyCode, int scanCode, int p_keyPressed_3_) {
		if( !this.checkHotbarKeys( InputMappings.getInputByCode(keyCode, scanCode) ) )
		{
			if( keyCode == 28 )
			{
				this.next.onPress();
			}
			if( ( keyCode == 211 || keyCode == 205 || keyCode == 203 || keyCode == 14 )
					&& this.amountToCraft.keyPressed( keyCode, scanCode, p_keyPressed_3_ ) )
			{
				try
				{
					String out = this.amountToCraft.getText();

					boolean fixed = false;
					while( out.startsWith( "0" ) && out.length() > 1 )
					{
						out = out.substring( 1 );
						fixed = true;
					}

					if( fixed )
					{
						this.amountToCraft.setText( out );
					}

					if( out.isEmpty() )
					{
						out = "0";
					}

					final long result = Long.parseLong( out );
					if( result < 0 )
					{
						this.amountToCraft.setText( "1" );
					}
				}
				catch( final NumberFormatException e )
				{
					// :P
				}
				return true;
			}
		}

		return super.keyPressed( keyCode, scanCode, p_keyPressed_3_ );
	}

	private void addQty( final int i )
	{
		try
		{
			String out = this.amountToCraft.getText();

			boolean fixed = false;
			while( out.startsWith( "0" ) && out.length() > 1 )
			{
				out = out.substring( 1 );
				fixed = true;
			}

			if( fixed )
			{
				this.amountToCraft.setText( out );
			}

			if( out.isEmpty() )
			{
				out = "0";
			}

			long result = Integer.parseInt( out );

			if( result == 1 && i > 1 )
			{
				result = 0;
			}

			result += i;
			if( result < 1 )
			{
				result = 1;
			}

			out = Long.toString( result );
			Integer.parseInt( out );
			this.amountToCraft.setText( out );
		}
		catch( final NumberFormatException e )
		{
			// :P
		}
	}

	protected String getBackground()
	{
		return "guis/craftAmt.png";
	}
}