package org.apache.maven.continuum.web.action;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.apache.maven.continuum.ContinuumException;
import org.apache.maven.continuum.model.project.Project;
import org.apache.maven.continuum.model.project.ProjectGroup;
import org.apache.maven.continuum.web.exception.AuthorizationRequiredException;
import org.apache.maven.continuum.web.model.GroupSummary;

/**
 * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
 * @version $Id$
 * @plexus.component role="com.opensymphony.xwork.Action" role-hint="groupSummary"
 */
public class GroupSummaryAction
    extends ContinuumActionSupport
{
    private String infoMessage;

    private List<GroupSummary> groups;

    public String execute()
        throws ContinuumException
    {
        groups = new ArrayList<GroupSummary>();

        Collection<ProjectGroup> projectGroups = getContinuum().getAllProjectGroupsWithProjects();

        for ( ProjectGroup projectGroup : projectGroups )
        {

            if ( isAuthorized( projectGroup.getName() ) )
            {
                getLogger().debug( "GroupSummaryAction: building group " + projectGroup.getName() );

                GroupSummary groupModel = new GroupSummary();
                groupModel.setId( projectGroup.getId() );
                groupModel.setGroupId( projectGroup.getGroupId() );
                groupModel.setName( projectGroup.getName() );
                groupModel.setDescription( projectGroup.getDescription() );
                
                if ( projectGroup.getLocalRepository() != null )
                {
                    groupModel.setRepositoryId( projectGroup.getLocalRepository().getId() );
                    groupModel.setRepositoryName( projectGroup.getLocalRepository().getName() );
                }

                //TODO: Create a summary jpox request so code will be more simple and performance will be better
                Collection<Project> projects = projectGroup.getProjects();

                groupModel.setNumProjects( projects.size() );

                int numSuccesses = 0;
                int numFailures = 0;
                int numErrors = 0;

                for ( Project project : projects )
                {
                    
                    if ( project.getState() == 2 )
                    {
                        numSuccesses++;
                    }
                    else if ( project.getState() == 3 )
                    {
                        numFailures++;
                    }
                    else if ( project.getState() == 4 )
                    {
                        numErrors++;
                    }
                }

                //todo wire in the next scheduled build for the project group and a meaningful status message
                //groupModel.setNextScheduledBuild( "unknown" );
                //groupModel.setStatusMessage( "none" );

                groupModel.setNumSuccesses( numSuccesses );
                groupModel.setNumFailures( numFailures );
                groupModel.setNumErrors( numErrors );
                getLogger().debug( "GroupSummaryAction: adding group to groups list " + groupModel.getName() );
                groups.add( groupModel );
            }
        }

        return SUCCESS;
    }

    public List<GroupSummary> getGroups()
    {
        return groups;
    }


    public String getInfoMessage()
    {
        return infoMessage;
    }

    public void setInfoMessage( String infoMessage )
    {
        this.infoMessage = infoMessage;
    }

    private boolean isAuthorized( String projectGroupName )
    {
        try
        {
            checkViewProjectGroupAuthorization( projectGroupName );
            return true;
        }
        catch ( AuthorizationRequiredException authzE )
        {
            return false;
        }
    }
}