/*
 * This file is part of Spoutcraft.
 *
 * Copyright (c) 2011 SpoutcraftDev <http://spoutcraft.org/>
 * Spoutcraft is licensed under the GNU Lesser General Public License.
 *
 * Spoutcraft 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.
 *
 * Spoutcraft 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.spoutcraft.client.gui.about;

import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;

import org.lwjgl.Sys;

import org.spoutcraft.api.gui.Color;
import org.spoutcraft.api.gui.GenericButton;
import org.spoutcraft.api.gui.GenericLabel;
import org.spoutcraft.api.gui.GenericTexture;
import org.spoutcraft.api.gui.RenderPriority;
import org.spoutcraft.api.gui.Widget;

public class ImageSection extends Section {
	private GuiNewAbout screen;
	private List<Image> images = new LinkedList<ImageSection.Image>();
	private int height = 0;

	private class Image {
		public GenericTexture texture;
		public String url = "";
		public GenericLabel description = null;
		public GenericButton button = new GenericButton() {
			{
				setPriority(RenderPriority.Highest);
			}

			@Override
			public void render() {
				// Don't render ;)
			}

			@Override
			public void onButtonClick() {
				Sys.openURL(url);
				super.onButtonClick();
			}
		};
	}

	@Override
	public List<Widget> getWidgets() {
		List<Widget> ret = super.getWidgets();
		for (Image img:images) {
			ret.add(img.texture);
			ret.add(img.button);
			if (img.description != null) {
				ret.add(img.description);
			}
		}
		return ret;
	}

	@Override
	public int getHeight() {
		return super.getHeight() + 5 + height;
	}

	@Override
	public void update() {
		height = 0;
		int x = getX();
		int y = getY() + super.getHeight() + 5;
		for (Image img:images) {
			int th = img.texture.getOriginalHeight();
			int tw = img.texture.getOriginalWidth();
			int theight = (int) (getWidth() * ((float) th / (float) tw));
			img.texture.setGeometry(x, y, getWidth(), theight);
			img.button.setGeometry(x, y, getWidth(), theight);
			int h = theight + 5;

			if (img.description != null) {
				img.description.setX(x);
				img.description.setY(y + theight + 5);
				img.description.setWidth(getWidth());
				img.description.setWrapLines(true);
				img.description.recalculateLines();
				h += 5 + img.description.getHeight();
			}

			y += h;
			height += h;
		}
		super.update();
	}

	@SuppressWarnings("unchecked")
	@Override
	public void init(final GuiNewAbout screen, String title, Object yaml) {
		setTitle(title);
		this.screen = screen;

		HashMap<String, Object> images = (HashMap<String, Object>) yaml;
		for (Object img:images.values()) {
			HashMap<String, String> attr = (HashMap<String, String>) img;
			Image image = new Image();
			image.texture = new GenericTexture(attr.get("image"));
			image.texture.setFinishDelegate(new Runnable() {
				@Override
				public void run() {
					screen.update();
				}
			});
			image.url = attr.get("website");
			image.texture.setTooltip(attr.get("tooltip"));
			if (attr.containsKey("description") && !attr.get("description").isEmpty()) {
				image.description = new GenericLabel(attr.get("description"));
				image.description.setTextColor(new Color(0xaaaaaa));
			}
			this.images.add(image);

			// TODO Description
		}
	}
}