package art.servers.pvvserver.protocols.dgt;

import art.library.model.devices.vms.general.VmsGeneral;

public class PvvDgtProtocolConstructor
{

    public PvvDgtProtocolConstructor()
    {
    }

    public static byte[] ORDCC(VmsGeneral device) throws Exception
    {
        return new byte[0];
    }

    /**
     * PVV status query.
     */
    public static byte[] readAlarms(int address) throws Exception
    {

        PvvDgtPDU requestAlarms = new PvvDgtPDU();
        requestAlarms.stx = PvvDgtConstants.PVV_STX;
        requestAlarms.etx = PvvDgtConstants.PVV_ETX;
        requestAlarms.address = address;
        requestAlarms.function = PvvDgtConstants.STR_PPVV_ALR;
        requestAlarms.information = new int[0];
        byte[] send = requestAlarms.createMessage();
        return (send);
    }

    /**
     * PVV configuration query.
     */
    public static byte[] readConfiguration(int address) throws Exception
    {

        PvvDgtPDU requestConfiguration = new PvvDgtPDU();
        requestConfiguration.stx = PvvDgtConstants.PVV_STX;
        requestConfiguration.etx = PvvDgtConstants.PVV_ETX;
        requestConfiguration.address = address;
        requestConfiguration.function = PvvDgtConstants.STR_PPVV_PP;
        requestConfiguration.information = new int[0];
        byte[] send = requestConfiguration.createMessage();
        return (send);
    }

    /**
     * PVV message query.
     */
    public static byte[] readMessage(int address) throws Exception
    {

        PvvDgtPDU requestConfiguration = new PvvDgtPDU();
        requestConfiguration.stx = PvvDgtConstants.PVV_STX;
        requestConfiguration.etx = PvvDgtConstants.PVV_ETX;
        requestConfiguration.address = address;
        requestConfiguration.function = PvvDgtConstants.STR_PPVV_EP;
        requestConfiguration.information = new int[0];
        byte[] send = requestConfiguration.createMessage();
        return (send);
    }

    public static int getBrightnessDGTLevel(int input, int maximum)
    {
        // Input is a 0-100 value
        if (input > 100)
        {
            input = 100;
        }

        if (input < 0)
        {
            input = 0;
        }
        return ((int) Math.round(((float) input * (float) maximum) / 100f));
    }

    public static int getBrightnessClientLevel(int input, int maximum, int maximumVms)
    {
        // Input is a 0-7 value
        int result = (int) Math.round(((float) input * (float) maximum) / (float) maximumVms);
        if (result > 100)
        {
            result = 100;
        }
        return (result);
    }
}