/*--------------------------------------------------------------*
  Copyright (C) 2006-2020 OpenSim Ltd.

  This file is distributed WITHOUT ANY WARRANTY. See the file
  'License' for details on this and other legal matters.
*--------------------------------------------------------------*/

package org.omnetpp.scave.actions;

import java.util.List;

import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.viewers.ISelection;
import org.omnetpp.scave.ScaveImages;
import org.omnetpp.scave.ScavePlugin;
import org.omnetpp.scave.charttemplates.ChartTemplateRegistry;
import org.omnetpp.scave.editors.IDListSelection;
import org.omnetpp.scave.editors.ScaveEditor;
import org.omnetpp.scave.engine.IDList;
import org.omnetpp.scave.model.Chart;
import org.omnetpp.scave.model.ChartTemplate;
import org.omnetpp.scave.model2.ResultSelectionFilterGenerator;
import org.omnetpp.scave.model2.ScaveModelUtil;

/**
 * Creates a temporary chart from the selection on the BrowseDataPage, automatically
 * choosing the template to use, then opens it.
 */
public class PlotAction extends AbstractScaveAction {
    public PlotAction() {
        setText("Plot");
        setToolTipText("Plot");
        setImageDescriptor(ScavePlugin.getImageDescriptor(ScaveImages.IMG_ETOOL16_PLOT));
    }

    @Override
    protected void doRun(ScaveEditor editor, ISelection selection) throws CoreException {
        IDListSelection idListSelection = (IDListSelection)selection;
        IDList idList = idListSelection.getIDList();

        ChartTemplateRegistry templateRegistry = editor.getChartTemplateRegistry();
        List<ChartTemplate> templates = templateRegistry.getChartTemplatesForResultTypes(idList.getItemTypes());
        Assert.isTrue(!templates.isEmpty());
        ChartTemplate template = templates.get(0);

        Chart chart = ScaveModelUtil.createChartFromTemplate(template);
        editor.getChartTemplateRegistry().markTemplateUsage(template);

        String filter = ResultSelectionFilterGenerator.makeFilterForIDListSelection(idListSelection);
        int type = idListSelection.getSource().getType().getItemTypes();
        boolean includeFields = editor.getBrowseDataPage().getScalarsPanel().getShowFieldsAsScalars();
        editor.getFilterCache().putFilterResult(type, filter, includeFields, idList);
        chart.setPropertyValue("filter", filter);
        chart.setPropertyValue("include_fields", "" + includeFields);
        chart.setTemporary(true);
        editor.openPage(chart);
    }

    ChartTemplate getTemplateForResults(ScaveEditor editor, ISelection selection) {
        if (!(selection instanceof IDListSelection) || selection.isEmpty())
            return null;
        ChartTemplateRegistry templateRegistry = editor.getChartTemplateRegistry();
        IDList idList = ((IDListSelection)selection).getIDList();

        List<ChartTemplate> templates = templateRegistry.getChartTemplatesForResultTypes(idList.getItemTypes());

        return templates.isEmpty() ? null : templates.get(0);
    }

    @Override
    protected boolean isApplicable(ScaveEditor editor, ISelection selection) {
        return getTemplateForResults(editor, selection) != null;
    }
}
