/*
 * Copyright (c) 2015 the original author or authors.
 * 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:
 *     Etienne Studer & Donát Csikós (Gradle Inc.) - initial API and implementation and initial documentation
 */

package org.eclipse.buildship.ui.view.task;

import com.google.common.base.Optional;
import org.eclipse.buildship.core.CorePlugin;
import org.eclipse.buildship.core.launch.GradleRunConfigurationAttributes;
import org.eclipse.buildship.ui.view.CommandBackedAction;
import org.eclipse.buildship.ui.util.nodeselection.NodeSelection;
import org.eclipse.buildship.ui.util.nodeselection.SelectionSpecificAction;

/**
 * Opens the existing run configuration for the selected Gradle tasks.
 * <p/>
 * Note that {@link OpenRunConfigurationAction} and {@link CreateRunConfigurationAction} are mutually exclusive.
 */
public final class OpenRunConfigurationAction extends CommandBackedAction implements SelectionSpecificAction {

    public OpenRunConfigurationAction(String commandId) {
        super(commandId);

        setText(TaskViewMessages.Action_OpenRunConfiguration_Text);
        setToolTipText(TaskViewMessages.Action_OpenRunConfiguration_Tooltip);
    }

    @Override
    public boolean isVisibleFor(NodeSelection selection) {
        return (TaskViewActionStateRules.taskScopedTaskExecutionActionsVisibleFor(selection) ||
                TaskViewActionStateRules.projectScopedTaskExecutionActionsVisibleFor(selection)) && isValidSelection(selection);
    }

    @Override
    public boolean isEnabledFor(NodeSelection selection) {
        return (TaskViewActionStateRules.taskScopedTaskExecutionActionsEnabledFor(selection) ||
                TaskViewActionStateRules.projectScopedTaskExecutionActionsEnabledFor(selection)) && isValidSelection(selection);
    }

    private boolean isValidSelection(NodeSelection selection) {
        Optional<GradleRunConfigurationAttributes> attributes = TaskNodeSelectionUtils.tryGetRunConfigurationAttributes(selection);
        return attributes.isPresent() && CorePlugin.gradleLaunchConfigurationManager().getRunConfiguration(attributes.get()).isPresent();
    }

    @Override
    public void setEnabledFor(NodeSelection selection) {
        setEnabled(isEnabledFor(selection));
    }

}