// This Source Code is in the Public Domain per: http://litesoft.org/License.txt
package org.litesoft.changemanagement;

import java.io.*;

import org.litesoft.core.typeutils.*;

public final class ServerStateChange implements Serializable
{
    public enum Action
    {
        DELETED,
        CREATED,
        UPDATED
    }

    private Action mAction;
    private String mChangedObjectTypeName;
    private Serializable mChangedObjectUniqueKey;
    private String mChangedObjectDisplayValue;
    private Serializable mExtraInfo;

    public ServerStateChange( Action pAction, //
                              String pChangedObjectTypeName, Serializable pChangedObjectUniqueKey, String pChangedObjectDisplayValue, //
                              Serializable pExtraInfo )
    {
        Objects.assertNotNull( "Action", mAction = pAction );
        mChangedObjectTypeName = Strings.assertNotNullNotEmpty( "ChangedObjectTypeName", pChangedObjectTypeName );
        Objects.assertNotNull( "ChangedObjectUniqueKey", mChangedObjectUniqueKey = pChangedObjectUniqueKey );
        mChangedObjectDisplayValue = pChangedObjectDisplayValue;
        mExtraInfo = pExtraInfo;
    }

    public Action getAction()
    {
        return mAction;
    }

    public String getChangedObjectTypeName()
    {
        return mChangedObjectTypeName;
    }

    public Serializable getChangedObjectUniqueKey()
    {
        return mChangedObjectUniqueKey;
    }

    public String getChangedObjectDisplayValue()
    {
        return mChangedObjectDisplayValue;
    }

    public Object getExtraInfo()
    {
        return mExtraInfo;
    }

    @Override
    public String toString()
    {
        return appendTo( new StringBuilder() ).toString();
    }

    public StringBuilder appendTo( StringBuilder pSB )
    {
        pSB.append( mAction ).append( ' ' ).append( mChangedObjectTypeName );
        pSB.append( '(' ).append( mChangedObjectUniqueKey ).append( ')' );
        if ( mExtraInfo != null )
        {
            pSB.append( '[' );
            if ( mExtraInfo != null )
            {
                pSB.append( mExtraInfo );
            }
            pSB.append( ']' );
        }
        if ( mChangedObjectDisplayValue != null )
        {
            pSB.append( ":" );
            pSB.append( mChangedObjectDisplayValue );
        }
        return pSB;
    }

    static final long serialVersionUID = -126548732321365498L;

    @Deprecated // for serialization
    public ServerStateChange()
    {
    }
}