package org.litesoft.aokeyhole.objects.support;

import org.litesoft.aokeyhole.objects.*;
import org.litesoft.aokeyhole.toolkit.*;

public abstract class PropertyStringMetaData extends PropertyMetaData
{
    private String[] mValidOptions;

    public PropertyStringMetaData( String pName, Required pRequired, String pInitialValue )
    {
        this( pName, pName, pRequired, pInitialValue );
    }

    public PropertyStringMetaData( String pName, String pDisplayLabel, Required pRequired, String pInitialValue )
    {
        this( pName, pDisplayLabel, pRequired, pInitialValue, (String[]) null );
    }

    public PropertyStringMetaData( String pName, Required pRequired, String pInitialValue, String... pValidOptions )
    {
        this( pName, pName, pRequired, pInitialValue, pValidOptions );
    }

    public PropertyStringMetaData( String pName, String pDisplayLabel, Required pRequired, String pInitialValue, String... pValidOptions )
    {
        super( pName, pDisplayLabel, DataType.STRING, pRequired, parse( pInitialValue, pValidOptions ) );

        mValidOptions = validateValidOptions( pValidOptions );
    }

    private String[] validateValidOptions( String[] pValidOptions )
    {
        if ( pValidOptions != null )
        {
            for ( int i = 0; i < pValidOptions.length; i++ )
            {
                String option = trimEmptyToNull( pValidOptions[i] );
                if ( option == null )
                {
                    throw new IllegalStateException( "Null not allowed as a Valid Option" );
                }
                pValidOptions[i] = option;
            }
        }
        return pValidOptions;
    }

    public String[] getValidOptions()
    {
        return mValidOptions;
    }

    public Object validateAndNormalize( Object pValue )
            throws ParseException
    {
        return parse( pValue, mValidOptions );
    }

    public static Object parse( Object pValue, String[] pValidOptions )
            throws ParseException
    {
        if ( pValue != null )
        {
            String value = trimEmptyToNull( pValue.toString() );
            if ( value != null )
            {
                if ( pValidOptions == null )
                {
                    return value;
                }
                for ( String option : pValidOptions )
                {
                    if ( value.equals( option ) )
                    {
                        return value;
                    }
                }
                throw new ParseException( value + " is not a valid option" );
            }
        }
        return pValue;
    }
}