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package test.javafx.scene.chart;

import javafx.collections.ObservableList;
import javafx.scene.Node;
import javafx.scene.chart.Chart;
import javafx.scene.chart.LineChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.chart.XYChartShim;
import javafx.scene.shape.Path;
import static org.junit.Assert.assertEquals;
import org.junit.Ignore;
import org.junit.Test;

public class LineChartTest extends XYChartTestBase {

    LineChart<Number,Number> lineChart;
    final XYChart.Series<Number, Number> series1 = new XYChart.Series<Number, Number>();

    @Override protected Chart createChart() {
        final NumberAxis xAxis = new NumberAxis();
        final NumberAxis yAxis = new NumberAxis();
        lineChart = new LineChart<Number,Number>(xAxis,yAxis);
        xAxis.setLabel("X Axis");
        yAxis.setLabel("Y Axis");
        lineChart.setTitle("HelloLineChart");
        // add starting data
        series1.getData().add(new XYChart.Data(10d, 10d));
        series1.getData().add(new XYChart.Data(25d, 20d));
        series1.getData().add(new XYChart.Data(30d, 15d));
        series1.getData().add(new XYChart.Data(50d, 15d));
        series1.getData().add(new XYChart.Data(80d, 10d));
        return lineChart;
    }

    private String getSeriesLineFromPlot() {
        for (Node n : XYChartShim.getPlotChildren(lineChart)) {
            if (n instanceof Path && "chart-series-line".equals(n.getStyleClass().get(0))) {
                Path line = (Path)n;
                return computeSVGPath(line);
            }
        }
        return "";
    }

    @Test
    public void testCreateSymbols() {
        startApp();
        lineChart.setCreateSymbols(false);
        pulse();
        lineChart.getData().addAll(series1);
        pulse();
        assertEquals(0, countSymbols(lineChart, "chart-line-symbol"));

        lineChart.getData().clear();
        pulse();
        lineChart.setCreateSymbols(true);
        pulse();
        lineChart.getData().addAll(series1);
        assertEquals(5, countSymbols(lineChart, "chart-line-symbol"));
    }

    @Test
    public void testDataItemAdd() {
        startApp();
        lineChart.getData().addAll(series1);
        pulse();
        series1.getData().add(new XYChart.Data(60d, 30d));
        pulse();
        // 5 stackpane nodes and 1 path node + new stackpane for data added
        assertEquals(7, XYChartShim.getPlotChildren(lineChart).size());
    }

     @Test @Ignore
     // Ignored because the animation's Timeline doesn't run. It used to be that the item was added before the
     // animation was run. Now the item is added as the onFinished handler of the first KeyFrame. Since the
     // Timeline doesn't run in the context of the unit test, this test fails. In fact, this test never really
     // achieved its purpose.
    public void testDataItemAddWithAnimation() {
        startApp();
        lineChart.setAnimated(true);
        lineChart.getData().addAll(series1);
        pulse();
        series1.getData().add(new XYChart.Data(60d, 30d));
        pulse();
        // 5 stackpane nodes and 1 path node + new stackpane for data added
        assertEquals(7, XYChartShim.getPlotChildren(lineChart).size());
    }

    @Test
    public void testDataItemRemove() {
        startApp();
        lineChart.getData().addAll(series1);
        pulse();
        if (!lineChart.getData().isEmpty()) {
            series1.getData().remove(0);
            pulse();
            // 4 stackpane nodes and one path node
            assertEquals(5, XYChartShim.getPlotChildren(lineChart).size());
        }
    }

     @Test
    public void testSeriesAddWithAnimation() {
        startApp();
        lineChart.setAnimated(true);
        final XYChart.Series<Number, Number> series2 = new XYChart.Series<Number, Number>();
        series1.getData().add(new XYChart.Data(15d, 40d));
        series1.getData().add(new XYChart.Data(25d, 10d));
        series1.getData().add(new XYChart.Data(40d, 35d));
        lineChart.getData().addAll(series1);
        pulse();
        assertEquals(true, lineChart.getAnimated());
    }

    @Override
    void checkSeriesStyleClasses(XYChart.Series<?, ?> series,
            int seriesIndex, int colorIndex) {
        Node seriesLine = series.getNode();
        checkStyleClass(seriesLine, "series"+seriesIndex, "default-color"+colorIndex);
    }

    @Override
    void checkDataStyleClasses(XYChart.Data<?, ?> data,
            int seriesIndex, int dataIndex, int colorIndex) {
        Node symbol = data.getNode();
        checkStyleClass(symbol, "series"+seriesIndex, "data"+dataIndex, "default-color"+colorIndex);
    }

    @Test
    public void testSeriesRemoveAnimatedStyleClasses() {
        startApp();
        //lineChart.setCreateSymbols(false);
        int nodesPerSeries = 4; // 3 symbols + 1 path
        checkSeriesRemoveAnimatedStyleClasses(lineChart, nodesPerSeries, 900);
    }
}