package pt.ist.renderers.extensions;

import pt.ist.renderers.BooleanRenderer;
import pt.ist.renderers.components.HtmlComponent;
import pt.ist.renderers.components.HtmlInlineContainer;
import pt.ist.renderers.components.HtmlLink;
import pt.ist.renderers.components.HtmlText;
import pt.ist.renderers.components.state.IViewState;
import pt.ist.renderers.components.state.ViewDestination;
import pt.ist.renderers.layouts.Layout;
import pt.ist.renderers.utils.RenderUtils;

public class BooleanLinkChangerRenderer extends BooleanRenderer {

    private String trueDestination;

    private String falseDestination;

    private String trueMessageKey;

    private String falseMessageKey;

    private String messageBundle;

    public String getFalseDestination() {
	return falseDestination;
    }

    public void setFalseDestination(String falseDestination) {
	this.falseDestination = falseDestination;
    }

    public String getFalseMessageKey() {
	return falseMessageKey;
    }

    public void setFalseMessageKey(String falseMessageKey) {
	this.falseMessageKey = falseMessageKey;
    }

    public String getMessageBundle() {
	return messageBundle;
    }

    public void setMessageBundle(String messageBundle) {
	this.messageBundle = messageBundle;
    }

    public String getTrueDestination() {
	return trueDestination;
    }

    public void setTrueDestination(String trueDestination) {
	this.trueDestination = trueDestination;
    }

    public String getTrueMessageKey() {
	return trueMessageKey;
    }

    public void setTrueMessageKey(String trueMessageKey) {
	this.trueMessageKey = trueMessageKey;
    }

    @Override
    protected Layout getLayout(Object object, Class type) {
	final Layout layout = super.getLayout(object, type);

	return new Layout() {

	    @Override
	    public HtmlComponent createComponent(Object object, Class type) {
		HtmlComponent component = layout.createComponent(object, type);

		if (object == null) {
		    return component;
		}

		HtmlInlineContainer container = new HtmlInlineContainer();

		HtmlLink link = createLink((Boolean) object);

		container.addChild(component);
		container.addChild(new HtmlText("("));
		container.addChild(link);
		container.addChild(new HtmlText(")"));

		return container;
	    }

	    private HtmlLink createLink(Boolean value) {
		Object holder = getContext().getParentContext().getMetaObject().getObject();

		HtmlLink link = new HtmlLink();

		link.setModuleRelative(true);
		link.setUrl(RenderUtils.getFormattedProperties(getUrlPath(value), holder));

		link.setText(getLinkText(value));

		return link;
	    }

	    private String getLinkText(Boolean value) {
		String key = value ? getTrueMessageKey() : getFalseMessageKey();
		return RenderUtils.getResourceString(getMessageBundle(), key);
	    }

	    private String getUrlPath(Boolean value) {
		IViewState viewState = getContext().getViewState();

		String destinationName = value ? getTrueDestination() : getFalseDestination();
		ViewDestination destination = viewState.getDestination(destinationName);

		if (destination == null) {
		    return "";
		} else {
		    return destination.getPath();
		}
	    }

	};
    }

}