/*
 Copyright 2008-2011 Gephi
 Authors : Sébastien Heymann <sebastien.heymann@gephi.org>
 Website : http://www.gephi.org

 This file is part of Gephi.

 DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

 Copyright 2011 Gephi Consortium. All rights reserved.

 The contents of this file are subject to the terms of either the GNU
 General Public License Version 3 only ("GPL") or the Common
 Development and Distribution License("CDDL") (collectively, the
 "License"). You may not use this file except in compliance with the
 License. You can obtain a copy of the License at
 http://gephi.org/about/legal/license-notice/
 or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
 specific language governing permissions and limitations under the
 License.  When distributing the software, include this License Header
 Notice in each file and include the License files at
 /cddl-1.0.txt and /gpl-3.0.txt. If applicable, add the following below the
 License Header, with the fields enclosed by brackets [] replaced by
 your own identifying information:
 "Portions Copyrighted [year] [name of copyright owner]"

 If you wish your version of this file to be governed by only the CDDL
 or only the GPL Version 3, indicate your decision by adding
 "[Contributor] elects to include this software in this distribution
 under the [CDDL or GPL Version 3] license." If you do not indicate a
 single choice of license, a recipient has the option to distribute
 your version of this file under either the CDDL, the GPL Version 3 or
 to extend the choice of license to its licensees as provided above.
 However, if you add GPL Version 3 code and therefore, elected the GPL
 Version 3 license, then the option applies only if the new code is
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 Contributor(s):

 Portions Copyrighted 2011 Gephi Consortium.
 */
package org.gephi.statistics.plugin.dynamic;

import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.HashMap;
import java.util.Map;
import org.gephi.graph.api.Graph;
import org.gephi.graph.api.GraphModel;
import org.gephi.graph.api.GraphView;
import org.gephi.graph.api.Interval;
import org.gephi.statistics.plugin.ChartUtils;
import org.gephi.statistics.spi.DynamicStatistics;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;

/**
 *
 * @author Sébastien Heymann
 */
public class DynamicNbNodes implements DynamicStatistics {

    public static final String NB_NODES = "dynamic nodecount";
    //Data
    private GraphModel graphModel;
    private double window;
    private double tick;
    private Interval bounds;
    //Average
    private Map<Double, Integer> counts;

    @Override
    public void execute(GraphModel graphModel) {
        this.graphModel = graphModel;
        this.counts = new HashMap<>();
    }

    @Override
    public String getReport() {
        //Time series
        XYSeries dSeries = ChartUtils.createXYSeries(counts, "Nb Nodes Time Series");

        XYSeriesCollection dataset = new XYSeriesCollection();
        dataset.addSeries(dSeries);

        JFreeChart chart = ChartFactory.createXYLineChart(
                "# Nodes Time Series",
                "Time",
                "# Nodes",
                dataset,
                PlotOrientation.VERTICAL,
                true,
                false,
                false);

        chart.removeLegend();
        ChartUtils.decorateChart(chart);
        ChartUtils.scaleChart(chart, dSeries, false);
        String imageFile = ChartUtils.renderChart(chart, "nb-nodes-ts.png");

        NumberFormat f = new DecimalFormat("#0.000");

        String report = "<HTML> <BODY> <h1>Dynamic Number of Nodes Report </h1> "
                + "<hr>"
                + "<br> Bounds: from " + f.format(bounds.getLow()) + " to " + f.format(bounds.getHigh())
                + "<br> Window: " + window
                + "<br> Tick: " + tick
                + "<br><br><h2> Number of nodes over time: </h2>"
                + "<br /><br />" + imageFile;

        /*for (Interval<Integer> count : counts) {
         report += count.toString(dynamicModel.getTimeFormat().equals(DynamicModel.TimeFormat.DOUBLE)) + "<br />";
         }*/
        report += "<br /><br /></BODY></HTML>";
        return report;
    }

    @Override
    public void loop(GraphView window, Interval interval) {
        Graph graph = graphModel.getGraph(window);

        int count = graph.getNodeCount();

        graphModel.getGraphVisible().setAttribute(NB_NODES, count, interval.getLow());
        graphModel.getGraphVisible().setAttribute(NB_NODES, count, interval.getHigh());

        counts.put(interval.getLow(), count);
        counts.put(interval.getHigh(), count);
    }

    @Override
    public void end() {
    }

    @Override
    public void setBounds(Interval bounds) {
        this.bounds = bounds;
    }

    @Override
    public void setWindow(double window) {
        this.window = window;
    }

    @Override
    public void setTick(double tick) {
        this.tick = tick;
    }

    @Override
    public double getWindow() {
        return window;
    }

    @Override
    public double getTick() {
        return tick;
    }

    @Override
    public Interval getBounds() {
        return bounds;
    }
}