package pt.ist.renderers;

import pt.ist.renderers.components.HtmlComponent;
import pt.ist.renderers.components.HtmlImage;
import pt.ist.renderers.components.HtmlText;
import pt.ist.renderers.layouts.Layout;
import pt.ist.renderers.utils.RenderUtils;

/**
 * The graphic output renderer for a boolean value. The value is used to apply
 * the defined icon for such boolean value.
 * 
 * @author djfsi
 */
public class BooleanImageRenderer extends OutputRenderer {

    private String trueIconPath;
    private String falseIconPath;
    private Boolean contextRelative;
    private Boolean nullAsFalse;

    public String getFalseIconPath() {
	return this.falseIconPath;
    }

    /**
     * The icon to be shown when presenting a <code>false</code> value.
     * 
     * @property
     */
    public void setFalseIconPath(String falseIconPath) {
	this.falseIconPath = falseIconPath;
    }

    public String getTrueIconPath() {
	return this.trueIconPath;
    }

    /**
     * The icon to be shown when presenting the <code>true</code> value.
     * 
     * @property
     */
    public void setTrueIconPath(String trueIconPath) {
	this.trueIconPath = trueIconPath;
    }

    public Boolean isContextRelative() {
	return this.contextRelative;
    }

    /**
     * This identifies the nature of the icon file path as being either context
     * relative or not.
     * 
     * @property
     */
    public void setContextRelative(Boolean contextRelative) {
	this.contextRelative = contextRelative;
    }

    @Override
    protected Layout getLayout(Object object, Class type) {
	return new Layout() {

	    @Override
	    public HtmlComponent createComponent(Object object, Class type) {
		Boolean booleanValue = (Boolean) object;

		if (booleanValue == null) {
		    if (!isNullAsFalse()) {
			return new HtmlText();
		    }
		    booleanValue = false;
		}

		StringBuilder pathBuilder = new StringBuilder();
		if (contextRelative) {
		    pathBuilder.append(RenderUtils.getContextRelativePath(""));
		}

		pathBuilder.append(getIconPath(booleanValue));
		String fullPath = pathBuilder.toString();

		HtmlImage img = new HtmlImage();
		img.setSource(fullPath);

		return img;
	    }

	    private String getIconPath(Boolean booleanValue) {
		return booleanValue ? getTrueIconPath() : getFalseIconPath();
	    }

	};
    }

    public void setNullAsFalse(Boolean nullAsFalse) {
	this.nullAsFalse = nullAsFalse;
    }

    public Boolean isNullAsFalse() {
	return nullAsFalse;
    }
}