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package net.abstractfactory.plum.view.web.layout;

import java.util.List;

import net.abstractfactory.plum.view.component.Component;
import net.abstractfactory.plum.view.layout.GridLayout;
import net.abstractfactory.plum.view.web.component.AbstractWebComponent;

import org.jsoup.nodes.Element;
import org.jsoup.parser.Tag;

public class WebGridLayout extends AbstractWebComponent {

	Element table;
	Element head;
	Element body;
	Element currentTR;

	List trList;

	public WebGridLayout(String id, Component component) {
		super(id, component);
	}

	private GridLayout getGridLayout() {
		return (GridLayout) component;
	}

	@Override
	public void createHtmlElement() {

		table = new Element(Tag.valueOf("table"), "");
		table.attr("class", "table");

		if (getGridLayout().isHeaderEnabled()) {
			// head
			head = new Element(Tag.valueOf("thead"), "");
			table.appendChild(head);

			currentTR = new Element(Tag.valueOf("tr"), "");
			head.appendChild(currentTR);

			// body
			body = new Element(Tag.valueOf("tbody"), "");
			table.appendChild(body);
		} else {

			// body
			body = new Element(Tag.valueOf("tbody"), "");
			table.appendChild(body);

			currentTR = new Element(Tag.valueOf("tr"), "");
			body.appendChild(currentTR);
		}

		htmlOuterElement = table;
	}

	private Element createCellElement(int rowIndex) {
		Element cell;
		if (rowIndex == 0 && getGridLayout().isHeaderEnabled())
			cell = new Element(Tag.valueOf("th"), "");
		else
			cell = new Element(Tag.valueOf("td"), "");

		return cell;
	}

	private Element getCurrentContainer(int rowIndex) {
		Element container;
		if (rowIndex == 0 && getGridLayout().isHeaderEnabled())
			container = head;
		else
			container = body;

		return container;
	}

	@Override
	protected Element getHtmlInnerElementForNewChild() {
		GridLayout grid = getGridLayout();
		int currentChildSize = getChildren().size();
		int currentRowIndex = (currentChildSize - 1) / grid.getCols();
		// int currentCols = currentChildSize % grid.getCols();

		// next child
		int nextChildSize = currentChildSize + 1;
		int nextRowIndex = (nextChildSize - 1) / grid.getCols();
		// int nextCols = nextChildSize % grid.getCols();

		if (nextRowIndex > currentRowIndex) {
			// create new row
			currentTR = new Element(Tag.valueOf("tr"), "");
			getCurrentContainer(nextRowIndex).appendChild(currentTR);
		}

		Element cell = createCellElement(nextRowIndex);
		currentTR.appendChild(cell);

		return cell;
	}

}