package zk.support;

import org.zkoss.bind.annotation.BindingParam;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.Init;
import org.zkoss.bind.annotation.NotifyChange;
import org.zkoss.chart.plotOptions.AreaPlotOptions;
import org.zkoss.zul.CategoryModel;
import org.zkoss.zul.SimpleCategoryModel;

/**
 * Date: 17.03.14
 */
public class ChartsTestVM {

    private CategoryModel model = null;

    private String dataParam = "series";
    private char seriesPrefix  = 'A';
    
    @Init
    public void init() {
    	doReplaceModel();
    }

    @Command("configurePlot")
    public void doConfigurePlot(@BindingParam("areaPlotOptions") AreaPlotOptions plotOptions) {
    	plotOptions.setStacking("normal");
    }
    
    @Command("replaceModel")
	@NotifyChange({"model"})
    public void doReplaceModel() {
    	model = new SimpleCategoryModel();
    	retrieveDataFromDB(dataParam);
    }
    
    @Command("updateModel")
    public void doUpdateModel() {
    	model.clear();
    	retrieveDataFromDB(dataParam);
    }
    
	private void retrieveDataFromDB(String dataParam) {
		//simulates model population 
		
		for(int index = 0; index < 3; index++) {
			model.setValue(seriesPrefix + dataParam + " 1", "val" + index, Double.valueOf(Math.random() * 100));
			model.setValue(seriesPrefix + dataParam + " 2", "val" + index, Double.valueOf(Math.random() * 100));
			model.setValue(seriesPrefix + dataParam + " 3", "val" + index, Double.valueOf(Math.random() * 100));
			model.setValue(seriesPrefix + dataParam + " 4", "val" + index, Double.valueOf(Math.random() * 100));
		}
		seriesPrefix++;
	}

	public CategoryModel getModel() {
		return model;
	}
}