/*******************************************************************************
 * Copyright (c) 2016 Ericsson
 *
 * All rights reserved. This program and the accompanying materials are
 * made available under the terms of the Eclipse Public License 2.0 which
 * accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *******************************************************************************/
package org.eclipse.tracecompass.internal.tmf.analysis.xml.ui.views.latency;

import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Table;
import org.eclipse.tracecompass.analysis.timing.ui.views.segmentstore.density.AbstractSegmentStoreDensityView;
import org.eclipse.tracecompass.analysis.timing.ui.views.segmentstore.density.AbstractSegmentStoreDensityViewer;
import org.eclipse.tracecompass.analysis.timing.ui.views.segmentstore.table.AbstractSegmentStoreTableViewer;
import org.eclipse.tracecompass.common.core.NonNullUtils;
import org.eclipse.tracecompass.internal.tmf.analysis.xml.ui.views.XmlLatencyViewInfo;
import org.eclipse.tracecompass.tmf.analysis.xml.core.module.TmfXmlStrings;

/**
 * Displays the latency density view for pattern analysis
 *
 * @author Jean-Christian Kouame
 */
public class PatternDensityView extends AbstractSegmentStoreDensityView {

    /** The view's ID */
    public static final @NonNull String ID = "org.eclipse.tracecompass.internal.tmf.analysis.xml.ui.views.density"; //$NON-NLS-1$

    private final XmlLatencyViewInfo fViewInfo = new XmlLatencyViewInfo(ID);

    private PatternDensityViewer fDensityViewer;
    private PatternLatencyTableViewer fTableViewer;

    /**
     * Constructor
     */
    public PatternDensityView() {
        super(ID);
        this.addPartPropertyListener(event -> {
            if (event.getProperty().equals(TmfXmlStrings.XML_LATENCY_OUTPUT_DATA)) {
                Object newValue = event.getNewValue();
                if (newValue instanceof String) {
                    String data = (String) newValue;
                    fViewInfo.setViewData(data);
                    setPartName(fViewInfo.getLabel());
                    loadTableViewer();
                    loadDensityViewer();
                }
            }
        });
    }

    @Override
    public void createPartControl(@Nullable Composite parent) {
        String name = getViewSite().getSecondaryId();
        if (name != null) {
            /* must initialize view info before calling super */
            fViewInfo.setName(name);
        }
        super.createPartControl(parent);
        Display.getDefault().asyncExec(() -> setPartName(fViewInfo.getLabel()));
    }

    private void loadTableViewer() {
        if (fTableViewer != null) {
            fTableViewer.updateViewer(fViewInfo.getViewAnalysisId());
        }
    }

    private void loadDensityViewer() {
        if (fDensityViewer != null) {
            fDensityViewer.updateViewer(fViewInfo.getViewAnalysisId());
        }
    }

    @Override
    protected @NonNull AbstractSegmentStoreTableViewer createSegmentStoreTableViewer(@NonNull Composite parent) {
        PatternLatencyTableViewer tableViewer = new PatternLatencyTableViewer(new TableViewer(parent, SWT.FULL_SELECTION | SWT.VIRTUAL)) {
            @Override
            protected void createProviderColumns() {
                super.createProviderColumns();
                Table t = (Table) getControl();
                t.setColumnOrder(new int[] { 0, 1, 2, 3, 4});
            }
        };
        fTableViewer = tableViewer;
        loadTableViewer();
        return tableViewer;
    }

    @Override
    protected @NonNull AbstractSegmentStoreDensityViewer createSegmentStoreDensityViewer(@NonNull Composite parent) {
        PatternDensityViewer densityViewer = new PatternDensityViewer(NonNullUtils.checkNotNull(parent));
        fDensityViewer = densityViewer;
        loadDensityViewer();
        return densityViewer;
    }
}