package com.worldturner.commons.wicket.googleanalytics;

import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;

import com.worldturner.commons.wicket.panel.GenericPanel;

/**
 * Generates javascript for google analytics asynchronous (new) tracking code. The model is the url that is reported to
 * the tracker, which can also be something other than a URL, such as the java class name of the most important panel on
 * a page. The account name is stored in a separate model.
 * 
 * @author Erwin Bolwidt (ebolwidt@worldturner.nl)
 */
public class GoogleAnalyticsScriptPanel extends GenericPanel<String> {

    private IModel<String> accountNameModel;

    public GoogleAnalyticsScriptPanel(String id, String url, String account) {
        this(id, new Model<String>(url), new Model<String>(account));
    }

    public GoogleAnalyticsScriptPanel(String id, IModel<String> urlModel, IModel<String> accountNameModel) {
        super(id, urlModel);
        this.accountNameModel = accountNameModel;
    }

    public GoogleAnalyticsScriptPanel(String id, IModel<String> urlModel) {
        this(id, urlModel, null);
    }

    public GoogleAnalyticsScriptPanel(String id) {
        this(id, (IModel<String>) null, (IModel<String>) null);
    }

    @Override
    protected void initializeGui() {
        super.initializeGui();
        add(new Label("accountName", accountNameModel).setRenderBodyOnly(true));
        add(new Label("trackingUrl", getModel()).setRenderBodyOnly(true));
    }

    @Override
    protected void onDetach() {
        super.onDetach();
        if (accountNameModel != null) {
            accountNameModel.detach();
        }
    }

    public void setAccountName(String accountName) {
        this.accountNameModel = new Model<String>(accountName);
    }

    public IModel<String> getAccountNameModel() {
        return accountNameModel;
    }

    public void setAccountNameModel(IModel<String> accountNameModel) {
        this.accountNameModel = accountNameModel;
    }

}