/*
 * Copyright 2016-2018 Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * 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 org.jboss.galleon.cli.cmd.state;

import org.aesh.command.CommandDefinition;
import org.jboss.galleon.cli.AbstractFeaturePackCommand;
import org.jboss.galleon.cli.CommandExecutionException;
import org.jboss.galleon.cli.PmCommandInvocation;
import org.jboss.galleon.cli.PmSession;
import org.jboss.galleon.cli.model.FeatureContainer;
import org.jboss.galleon.cli.path.FeatureContainerPathConsumer;
import org.jboss.galleon.cli.path.PathParser;

@CommandDefinition(name = "explore", description = "Explore a feature-pack or an installation", activator = NoStateCommandActivator.class)
public class StateExploreCommand extends AbstractFeaturePackCommand {

    @Override
    protected void runCommand(PmCommandInvocation session) throws CommandExecutionException {
        PmSession pm = session.getPmSession();
        String prompt = null;
        try {
            if (pm.getContainer() != null) {
                throw new CommandExecutionException("Already entered, use leave command");
            }
            FeatureContainer container = getFeatureContainer(pm, session.getAeshContext());
            pm.setExploredContainer(container);
            prompt = getName() + PathParser.PATH_SEPARATOR;
            pm.setCurrentPath(FeatureContainerPathConsumer.ROOT);
        } catch (Exception ex) {
            if (ex instanceof CommandExecutionException) {
                throw (CommandExecutionException) ex;
            }
            throw new CommandExecutionException("Stream resolution failed", ex);
        }
        session.setPrompt(PmSession.buildPrompt(prompt));
        session.println("Exploring " + getName() + ". Use 'state leave' to leave exploration.");
    }
}
