// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.GWT.client;

import org.litesoft.commonfoundation.typeutils.*;

public class AppNames
{
    private String mAppName;
    private String mShortAllLettersClientName;

    public AppNames( String pAppName, String pShortAllLettersClientName )
    {
        mAppName = Strings.assertNotNullNotEmpty( "AppName", pAppName );
        validateShortName( Strings.assertNotNullNotEmpty( "ShortAllLettersClientName", //
                                                          pShortAllLettersClientName ) );
    }

    public AppNames( String pShortAllLettersClientAppName )
    {
        validateShortName( mAppName = Strings.assertNotNullNotEmpty( "ShortAllLettersClientAppName", //
                                                                     pShortAllLettersClientAppName ) );
    }

    private void validateShortName( String pShortName )
    {
        mShortAllLettersClientName = pShortName;
        if ( pShortName.length() > 16 )
        {
            throw new IllegalArgumentException( "Too long (>16) ShortAllLettersClientName:" + pShortName );
        }
        for ( int i = 0; i < pShortName.length(); i++ )
        {
            char c = pShortName.charAt( i );
            if ( !isLetter( c ) )
            {
                throw new IllegalArgumentException( "Non-Letter (@" + i + ") in ShortAllLettersClientName:" + pShortName );
            }
        }
    }

    /**
     * ONLY US ASCII!!
     */
    private boolean isLetter( char pC )
    {
        return (('A' <= pC) && (pC <= 'Z')) || (('a' <= pC) && (pC <= 'z'));
    }

    public String getAppName()
    {
        return mAppName;
    }

    public String getShortAllLettersClientName()
    {
        return mShortAllLettersClientName;
    }
}