/*
 * Copyright 2000-2020 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * 
 */
package jetbrains.teamcity.ui.actions;

import java.util.Collection;
import java.util.HashSet;
import java.util.Map;
import jetbrains.buildServer.BuildType;
import jetbrains.teamcity.Activator;
import jetbrains.teamcity.Constants;
import jetbrains.teamcity.SharedImages;
import jetbrains.teamcity.core.Util;
import jetbrains.teamcity.core.remote.RemoteRunCustomData;
import jetbrains.teamcity.core.remote.RemoteRunPreferencesHelper;
import jetbrains.teamcity.ui.views.model.ProjectTreeBuildTypeNode;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.internal.ide.misc.OverlayIcon;

public class CleanCustomizationAction extends Action implements ISelectionChangedListener {

    private final Map<String, RemoteRunCustomData> myHolder;

    private final HashSet<BuildType> myElements = new HashSet<BuildType>();

    public CleanCustomizationAction(final Shell parentShell, final Map<String, RemoteRunCustomData> holder) {
        super(Messages.getString("CleanCustomizationAction.name"), //$NON-NLS-1$
                new OverlayIcon(SharedImages.getImageDescriptorByPath(SharedImages.REMOTE_RUN_ACTION_CUSTOMIZE), new ImageDescriptor[][] { {},
                        { SharedImages.getImageDescriptorByPath(SharedImages.REMOTE_RUN_ACTION_CUSTOMIZE_CLEAN_OVERLAY) } }, new Point(16, 16))
        // new OverlayImage(
        // SharedImages
        // .getImageDescriptorByPath(SharedImages.REMOTE_RUN_ACTION_CUSTOMIZE),
        // SharedImages
        // .getImageDescriptorByPath(SharedImages.REMOTE_RUN_ACTION_CUSTOMIZE_CLEAN_OVERLAY),
        // IDecoration.BOTTOM_RIGHT)
        );
        Assert.isNotNull(holder);
        myHolder = holder;
        setEnabled(false);
    }

    @Override
    public void run() {
        for (final BuildType element : elements()) {
            myHolder.remove(element.getBuildTypeId());
        }
        notifyChanged();
        save();
    }

    public void cleanAll() {
        myHolder.clear();
        notifyChanged();
        save();
    }

    private void save() {
        try {
            new RemoteRunPreferencesHelper(Platform.getPreferencesService()).save(myHolder);
        } catch (Throwable e) {
            Activator.getDefault().getLog().log(Util.createStatus(e));
        }
    }

    private void notifyChanged() {
        Activator.broadcastPropertyChange(new PropertyChangeEvent(this, Constants.Notification.REMOTE_RUN_CUSTOM_DATA_CHANGED, null, myHolder));

        notifyResult(true);
    }

    public Collection<BuildType> elements() {
        return myElements;
    }

    public void selectionChanged(SelectionChangedEvent event) {
        setEnabled(false);
        myElements.clear();
        final IStructuredSelection selection = ((IStructuredSelection) event.getSelection());
        final HashSet<BuildType> buffer = new HashSet<BuildType>();
        for (final Object selected : selection.toList()) {
            if ((selected instanceof ProjectTreeBuildTypeNode && myHolder.containsKey(((ProjectTreeBuildTypeNode) selected).getID()))) {
                buffer.add(((ProjectTreeBuildTypeNode) selected).getBuildType());
            }
        }
        myElements.addAll(buffer);
        setEnabled(!myElements.isEmpty());
    }

}