package org.apache.maven.artifact;

/*
 * 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.HashMap;
import java.util.Map;

/**
 * Type safe enumeration for the artifact status field.
 *
 * @author <a href="mailto:brett@apache.org">Brett Porter</a>
 */
public final class ArtifactStatus
    implements Comparable<ArtifactStatus>
{
    /**
     * No trust - no information about status.
     */
    public static final ArtifactStatus NONE = new ArtifactStatus( "none", 0 );

    /**
     * No trust - information was generated with defaults.
     */
    public static final ArtifactStatus GENERATED = new ArtifactStatus( "generated", 1 );

    /**
     * Low trust - was converted from the Maven 1.x repository.
     */
    public static final ArtifactStatus CONVERTED = new ArtifactStatus( "converted", 2 );

    /**
     * Moderate trust - it was deployed directly from a partner.
     */
    public static final ArtifactStatus PARTNER = new ArtifactStatus( "partner", 3 );

    /**
     * Moderate trust - it was deployed directly by a user.
     */
    public static final ArtifactStatus DEPLOYED = new ArtifactStatus( "deployed", 4 );

    /**
     * Trusted, as it has had its data verified by hand.
     */
    public static final ArtifactStatus VERIFIED = new ArtifactStatus( "verified", 5 );

    private final int rank;

    private final String key;

    private static Map<String, ArtifactStatus> map;

    private ArtifactStatus( String key, int rank )
    {
        this.rank = rank;
        this.key = key;

        if ( map == null )
        {
            map = new HashMap<String, ArtifactStatus>();
        }
        map.put( key, this );
    }

    public static ArtifactStatus valueOf( String status )
    {
        ArtifactStatus retVal = null;

        if ( status != null )
        {
            retVal = map.get( status );
        }

        return retVal != null ? retVal : NONE;
    }

    public boolean equals( Object o )
    {
        if ( this == o )
        {
            return true;
        }
        if ( o == null || getClass() != o.getClass() )
        {
            return false;
        }

        final ArtifactStatus that = (ArtifactStatus) o;

        return rank == that.rank;

    }

    public int hashCode()
    {
        return rank;
    }

    public String toString()
    {
        return key;
    }

    public int compareTo( ArtifactStatus s )
    {
        return rank - s.rank;
    }
}
