/*******************************************************************************
 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
 * in Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.simulation.ui.handlers.e4;

import java.text.ParseException;

import javax.inject.Inject;

import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.core.di.annotations.Optional;
import org.eclipse.e4.core.services.events.IEventBroker;
import org.eclipse.e4.ui.di.UIEventTopic;
import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.e4.ui.model.application.ui.menu.MMenuItem;
import org.eclipse.e4.ui.workbench.modeling.EModelService;
import org.eclipse.jface.dialogs.InputDialog;
import org.eclipse.ui.PlatformUI;
import org.osgi.service.prefs.BackingStoreException;
import org.simantics.simulation.SimulationEvents;
import org.simantics.simulation.experiment.SimulationTimeUtil;
import org.simantics.simulation.ui.preferences.SimulationPreferenceUtil;
import org.simantics.simulation.ui.preferences.SimulationPreferences;
import org.simantics.simulation.ui.preferences.SimulationPreferences.StepMode;
import org.simantics.utils.ui.ExceptionUtils;

/**
 * @author Tuukka Lehtonen
 * @since 1.39.0
 */
public class SetEndTime {

    private static final String SET_END_TIME_ITEM_ID = "org.simantics.simulation.ui.handledmenuitem.setendtime";

    @Inject
    private EModelService modelService;

    @Inject
    private IEventBroker eventBroker;

    @Execute
    public void execute(MMenuItem item) {
        // This is a radio menu item, execute is called also when it is deselected
        if (!item.isSelected())
            return;

        SimulationPreferences prefs = SimulationPreferenceUtil.getPrefs();

        InputDialog dialog = new TimeInputDialog(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(),
                "Set Simulation Step End Time", "simulation step end time", "" + prefs.stepEndTime);
        if (dialog.open() == InputDialog.OK) {
            try {
                double endTime = (double) SimulationTimeUtil.getTimeFormat().parseObject(dialog.getValue());
                SimulationPreferenceUtil.flushPrefs(prefs.withEndTime(endTime).withStepMode(StepMode.END_TIME));
                eventBroker.post(SimulationEvents.TOPIC_STEP_END_TIME, endTime);
                eventBroker.post(SimulationEvents.TOPIC_STEP_MODE, StepMode.END_TIME);
            } catch (BackingStoreException e) {
                ExceptionUtils.logAndShowError(e);
            } catch (ParseException e) {
                ExceptionUtils.logAndShowError(e);
            }
        } else {
            eventBroker.post(SimulationEvents.TOPIC_STEP_MODE, prefs.stepMode);
        }
    }

    @Inject
    @Optional
    public void updateElement(@Optional @UIEventTopic(SimulationEvents.TOPIC_STEP_MODE) StepMode mode, MApplication application) {
        WorkbenchUtil.setMenuItemSelected(modelService, application, Step.HANDLED_ITEM_ID, SET_END_TIME_ITEM_ID, mode == StepMode.END_TIME);
    }

}