package org.litesoft.bo.views;

/**
 * Status Codes for Inventory related counting.  Normally the process is:
 *
 *      Defaults to NC at start of count,
 *      Once count starts, it changes to OK if the Expected Count matches the Actual Count, otherwise changes to NM.
 */
public class InventorySupport
{
    public enum Status
    {
        NC, NM, OK
    }

    public static final String NC = Status.NC.toString(); // Not Counted
    public static final String NM = Status.NM.toString(); // Not Matching
    public static final String OK = Status.OK.toString(); // OK / Matched
    public static final String DASH_DASH = "--"; // ........ Nothing to Match Against!

    public static final String[] OPTIONS = {NC, NM, OK, DASH_DASH};

    public static String getStatus( Integer pExpectedCount, Integer pActualCount )
    {
        if ( pExpectedCount == null )
        {
            return DASH_DASH;
        }
        if ( pActualCount == null )
        {
            return NC;
        }
        return pActualCount.equals( pExpectedCount ) ? "OK" : "NM";
    }

    public static boolean isActive( String pStatus )
    {
        return (pStatus != null) && !DASH_DASH.equals( pStatus );
    }

    public static int compareTo( String pThisStatus, String pThemStatus )
    {
        return orderFor( pThisStatus ) - orderFor( pThemStatus );
    }

    private static int orderFor( String pStatus )
    {
        if ( NC.equals( pStatus ) )
        {
            return 0;
        }
        if ( NM.equals( pStatus ) )
        {
            return 1;
        }
        if ( OK.equals( pStatus ) )
        {
            return 2;
        }
        if ( DASH_DASH.equals( pStatus ) )
        {
            return 3;
        }
        return 4;
    }
}