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.Charts;
import org.zkoss.chart.model.CategoryModel;
import org.zkoss.chart.model.DefaultCategoryModel;
import org.zkoss.chart.plotOptions.AreaPlotOptions;

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

    private CategoryModel model = null;

    private String dataParam = "series";
    private char seriesPrefix  = 'A';
    private String categoryPrefix  = "init";

    private int numSeries = 3; 
    private int numCategories = 3; 
    
	private Charts chart;
    
    @Init
    public void init() {
    	doReplaceModel();
    }

    @Command("configurePlot")
    public void doConfigurePlot(@BindingParam("areaPlotOptions") AreaPlotOptions plotOptions, @BindingParam("chart") Charts chart) {
    	this.chart = chart;
		chart.getXAxis().setTickmarkPlacement("on");
        chart.getYAxis().setTitle("Incidents");
        chart.getYAxis().getLabels().setFormat("{value}");
        chart.getTooltip().setShared(true);

        plotOptions.setStacking("normal");
        plotOptions.setLineColor("#B80000");
        plotOptions.setLineWidth(1);
        plotOptions.getMarker().setLineWidth(1);
        plotOptions.getMarker().setLineColor("#666666");
    	
    	setColors();
    }
    
    @Command("replaceModel")
	@NotifyChange({"model"})
    public void doReplaceModel() {
    	model = new DefaultCategoryModel();
    	categoryPrefix = "init";
    	numSeries = 3;
    	numCategories = 3;
    	retrieveDataFromDB(dataParam);
//    	setColors();
    }
    
    @Command("updateModel")
    public void doUpdateModel() {
    	model.clear();
    	categoryPrefix = "updt";
    	numSeries++;
    	numCategories++;
    	retrieveDataFromDB(dataParam);
    	setColors();
    }
    
    private void setColors() {
    	chart.getSeries(0).setColor("#FF0000");
    	chart.getSeries(1).setColor("#00FF00");
    	chart.getSeries(2).setColor("#FF00FF");
    }
    
	private void retrieveDataFromDB(String dataParam) {
		//simulates model population 
		
		int numCategories = (int)(Math.random() * 5) + 3;
		int numSeries = (int)(Math.random() * 5) + 3;
		
		numCategories = 20;
		numSeries = 2;
		
		for(int seriesIndex = 0; seriesIndex < numSeries; seriesIndex++) {
			for(int index = 0; index < numCategories; index++) {
				double value;
//				if(seriesIndex == 0 && (index < 5 || index > 15)) { // make the other series "incomplete"
				if(seriesIndex == 1 && (index < 5 || index > 15)) { // create an incomplete series
					continue;
//					value = 0.0;
				} else {
					//random values
//					value = Double.valueOf(Math.random() * 100);
					//deterministic values
					value = Math.sin(index / 6.0 + seriesIndex) * 30 + 55;
				}
				model.setValue(seriesPrefix + dataParam + " " + (seriesIndex + 1), categoryPrefix + "/" + index, value);
			}
		}
		//seriesPrefix++;
	}

	public CategoryModel getModel() {
		return model;
	}
}