package org.simantics.charts.editor.e4;

import java.util.List;

import javax.inject.Named;

import org.eclipse.e4.core.di.annotations.CanExecute;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.ui.di.AboutToHide;
import org.eclipse.e4.ui.di.AboutToShow;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.model.application.ui.menu.MDirectMenuItem;
import org.eclipse.e4.ui.model.application.ui.menu.MMenuElement;
import org.eclipse.e4.ui.model.application.ui.menu.MMenuFactory;
import org.eclipse.e4.ui.services.IServiceConstants;
import org.simantics.charts.editor.TrackExperimentTimeAction;
import org.simantics.trend.configuration.TrendSpec;
import org.simantics.trend.impl.ItemNode;
import org.simantics.trend.impl.TrendNode;
import org.simantics.trend.impl.TrendParticipant;

public class MoveHairlineHandler {

    @AboutToShow
    public void aboutToShow(List<MMenuElement> items) {
        MDirectMenuItem menuItem = MMenuFactory.INSTANCE.createDirectMenuItem();
        menuItem.setContributionURI("bundleclass://org.simantics.charts/org.simantics.charts.editor.e4.MoveHairlineHandler");
        menuItem.setLabel("Move Hairline Here");
        items.add(menuItem);
    }
    
    @AboutToHide
    public void aboutToHide() {
        
    }
    
    @CanExecute
    public boolean canExecute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart) {
        if (activePart != null && activePart.getObject() instanceof TimeSeriesEditor) {
            TimeSeriesEditor editor = (TimeSeriesEditor) activePart.getObject();
            
            TrendNode trendNode = editor.trendNode;
            TrendParticipant tp = editor.tp;
            if (trendNode == null || tp == null)
                return false;
            
            TrendSpec trendSpec = trendNode.getTrendSpec();
            boolean hairlineMovementAllowed =
                    !(trendSpec.experimentIsRunning &&
                      trendSpec.viewProfile.trackExperimentTime);
            
            return hairlineMovementAllowed;
        }
        return false;
    }
    
    @Execute
    public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart) {
        if (activePart.getObject() instanceof TimeSeriesEditor) {
            TimeSeriesEditor editor = (TimeSeriesEditor) activePart.getObject();
            
            TrendNode trendNode = editor.trendNode;
            TrendParticipant tp = editor.tp;
            if (trendNode == null || tp == null)
                return;

            TrendSpec trendSpec = trendNode.getTrendSpec();
            ItemNode hoverItem = tp.hoveringItem;
            
            // #TODO Finish this when we are fully in E4 workbench
            
//            trend.valueTipTime = time;
//            trend.repaint();
//            if (setTrackExperimentTime != null) {
//                TrackExperimentTimeAction.setTracking(chart, setTrackExperimentTime);
//            }
            
        }
    }

}