package zk.support;

import org.zkoss.bind.BindUtils;
import org.zkoss.bind.annotation.BindingParam;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.GlobalCommand;
import org.zkoss.bind.annotation.Init;
import org.zkoss.bind.annotation.NotifyChange;
import org.zkoss.chart.Charts;
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';
	private String categoryPrefix  = "init";

	private int numSeries = 3; 
	private int numCategories = 3; 

	private Charts chart;

	private boolean updateColors;

	@Init
	public void init() {
		categoryPrefix = "init";
		replaceModel();
	}

	@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("replaceModelWorkaround") 
	//@NotifyChange({"model"})
	public void doReplaceModelWorkaround() {
		categoryPrefix = "refix";
		replaceModel();
		chart.setModel(model); // need to set the model before changing the colors
		setColors();
	}


	@Command("replaceModel")
	@NotifyChange({"model"})
	public void doReplaceModel() {
		categoryPrefix = "repl";
		replaceModel();
		setColors();
	}

	private void replaceModel() {
		model = new SimpleCategoryModel();
		retrieveDataFromDB(dataParam);
	}

	@Command("updateModel")
	public void doUpdateModel() {
		model.clear();
		categoryPrefix = "updt";
		numSeries++;
		numCategories++;
		retrieveDataFromDB(dataParam);
		setColors();
	}

	@GlobalCommand("setColors")
	public void setColors() {
		chart.getSeries(0).setColor("#FF0000");
		chart.getSeries(1).setColor("#00FF00");
	}

	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;
	}
}