/*
 * 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 jetbrains.buildServer.UserChangeInfo;
import jetbrains.buildServer.UserChangeStatus;
import jetbrains.buildServer.delayedCommit.RemoteRunSessionData;
import jetbrains.teamcity.Activator;
import jetbrains.teamcity.Constants;
import jetbrains.teamcity.SharedImages;
import jetbrains.teamcity.core.jobs.DelayedCommitJob;
import jetbrains.teamcity.core.util.ChangeStatusHelper;
import jetbrains.teamcity.ui.views.ChangesView;
import jetbrains.teamcity.ui.views.CommentsDialog;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.ui.PlatformUI;

public class CommitAction extends Action implements ISelectionChangedListener {

	static final String COMMENTS_DIALOG_SETTING_ID = Constants.DialogSettings.REMOTE_RUN_DIALOG_SETTING_ID; 

	private UserChangeInfo myChangeInfo;

	private RemoteRunSessionData mySessionData;

	private final ChangesView myChangesView;

	public CommitAction(final ChangesView changesView) {
		super(Messages.getString("CommitAction.action.name"), SharedImages.getImageDescriptorByPath(SharedImages.CHECKIN_ACTION)); //$NON-NLS-1$
		myChangesView = changesView;
	}

	@Override
	public void run() {
		if (myChangeInfo != null && mySessionData != null) {

			// warn build status about
			final UserChangeStatus personalChangeStatus = myChangeInfo
					.getChangeStatus();
			if (UserChangeStatus.FAILED.equals(personalChangeStatus)) {
				final boolean yes = MessageDialog
						.openQuestion(
								null,
								getText(),
								Messages
										.getString("CommitAction.confirmation.commit.broken.build")); //$NON-NLS-1$
				if (!yes) {
					return;
				}
			}
			//ask for commit dialog
			final CommentsDialog dialog = new CommentsDialog(
					myChangesView.getSite().getShell(),
					Messages.getString("CommitAction.manual.commit.dialog.title"), //$NON-NLS-1$
					Messages.getString("CommitAction.commit.comments.prompt"), mySessionData.getComment()); //$NON-NLS-1$
			
			if (dialog.open() == Window.OK) {
				final DelayedCommitJob job = new DelayedCommitJob(mySessionData, dialog.getComment());
				job.schedule();
				PlatformUI.getWorkbench().getProgressService().showInDialog(null, job);
			}
		}

	}

	public void selectionChanged(SelectionChangedEvent event) {
		final StructuredSelection selection = (StructuredSelection) myChangesView.getSite().getSelectionProvider().getSelection();
        final Object[] elements = selection.toArray();
		if (elements.length == 1 && elements[0] instanceof IAdaptable) {

			final UserChangeInfo changeInfo = (UserChangeInfo) ((IAdaptable) elements[0]).getAdapter(UserChangeInfo.class);
			final RemoteRunSessionData sessionData = (RemoteRunSessionData) ((IAdaptable) elements[0]).getAdapter(RemoteRunSessionData.class);

			if (changeInfo != null && sessionData != null) {
				myChangeInfo = changeInfo;
				mySessionData = sessionData;
				if (isStateAllowed()) {
					setEnabled(true);
					return;
				}
			}
		}
		setEnabled(false);
	}

	private IDialogSettings getSettings() {
		final IDialogSettings dialogSettings = Activator.getDefault()
				.getDialogSettings();
		final IDialogSettings settings = dialogSettings.getSection(COMMENTS_DIALOG_SETTING_ID);
		if (settings == null) {
			return dialogSettings.addNewSection(COMMENTS_DIALOG_SETTING_ID);
		}
		return settings;
	}

	private boolean isStateAllowed() {
		final boolean[] result = new boolean[] { false };
		BusyIndicator.showWhile(myChangesView.getSite().getShell().getDisplay(), new Runnable() {
			public void run() {
				result[0] = !ChangeStatusHelper.isCommitSucceed(mySessionData, myChangeInfo);
			}
		});
		return result[0];
	}

}