package org.apache.maven.continuum.initialization;

/*
 * Copyright 2004-2005 The Apache Software Foundation.
 *
 * 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.
 */

import org.apache.maven.continuum.Continuum;
import org.apache.maven.continuum.model.project.ProjectGroup;
import org.apache.maven.continuum.model.project.Schedule;
import org.apache.maven.continuum.model.system.SystemConfiguration;
import org.apache.maven.continuum.store.ContinuumObjectNotFoundException;
import org.apache.maven.continuum.store.ContinuumStore;
import org.apache.maven.continuum.store.ContinuumStoreException;
import org.codehaus.plexus.logging.AbstractLogEnabled;
import org.jpox.SchemaTool;

/**
 * @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
 * @version $Id$
 * @todo use this, reintroduce default project group
 */
public class DefaultContinuumInitializer
    extends AbstractLogEnabled
    implements ContinuumInitializer
{
    // ----------------------------------------------------------------------
    // Default values for the default schedule
    // ----------------------------------------------------------------------

    //TODO: move this to an other place
    public static final String DEFAULT_SCHEDULE_NAME = "DEFAULT_SCHEDULE";

    private SystemConfiguration systemConf;

    // ----------------------------------------------------------------------
    //  Requirements
    // ----------------------------------------------------------------------

    /**
     * @plexus.requirement
     */
    private ContinuumStore store;

    // ----------------------------------------------------------------------
    //
    // ----------------------------------------------------------------------

    public void initialize()
        throws ContinuumInitializationException
    {
        getLogger().info( "Continuum initializer running ..." );
        
        if ( getLogger().isDebugEnabled() )
        {
            getLogger().debug( "Dumping JPOX/JDO Schema Details ..." );
            try
            {
                SchemaTool.outputDBInfo( null, true );
                SchemaTool.outputSchemaInfo( null, true );
            }
            catch ( Exception e )
            {
                getLogger().debug( "Error while dumping the database schema", e );
            }
        }

        try
        {
            // System Configuration
            systemConf = store.getSystemConfiguration();

            if ( systemConf == null )
            {
                systemConf = new SystemConfiguration();

                systemConf = store.addSystemConfiguration( systemConf );
            }

            // Schedule
            Schedule s = store.getScheduleByName( DEFAULT_SCHEDULE_NAME );

            if ( s == null )
            {
                Schedule defaultSchedule = createDefaultSchedule();

                store.addSchedule( defaultSchedule );
            }

            // Permission
            createPermissions();

            createGroups();

            createUsers();

            getLogger().info( "... Continuum initialized" );
        }
        catch ( ContinuumStoreException e )
        {
            throw new ContinuumInitializationException( "Can't initialize default schedule.", e );
        }
    }

    // ----------------------------------------------------------------------
    //
    // ----------------------------------------------------------------------

    public Schedule createDefaultSchedule()
    {
        Schedule schedule = new Schedule();

        schedule.setName( DEFAULT_SCHEDULE_NAME );

        schedule.setDescription( systemConf.getDefaultScheduleDescription() );

        schedule.setCronExpression( systemConf.getDefaultScheduleCronExpression() );

        schedule.setActive( true );

        return schedule;
    }

    protected void createPermissions()
        throws ContinuumStoreException
    {
    }

    protected void createGroups()
        throws ContinuumStoreException
    {
        createDefaultProjectGroup();
    }

    protected void createUsers()
        throws ContinuumStoreException
    {
    }

    private void createDefaultProjectGroup()
        throws ContinuumStoreException
    {
        ProjectGroup group;
        try
        {
            group = store.getProjectGroupByGroupId( Continuum.DEFAULT_PROJECT_GROUP_GROUP_ID );
        }
        catch ( ContinuumObjectNotFoundException e )
        {
            group = new ProjectGroup();

            group.setName( "Default Project Group" );

            group.setGroupId( Continuum.DEFAULT_PROJECT_GROUP_GROUP_ID );

            group.setDescription( "Contains all projects that do not have a group of their own" );

            group = store.addProjectGroup( group );
        }
    }
}