namespace IStation.Epanet.Network.Structures
{

#if NUCONVERT
    public static class NUConvert
    {
        public static double ConvertArea(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value / (Constants.MperFT * Constants.MperFT);

            return value;
        }

        public static double ConvertDistance(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value * (1 / Constants.MperFT);

            return value;
        }

        public static double ConvertFlow(FlowUnitsType flow, double value)
        {
            switch (flow)
            {
                case FlowUnitsType.CFS:
                    return value * (1 / Constants.LPSperCFS);
                case FlowUnitsType.GPM:
                    return value * (1 / Constants.GPMperCFS);
                case FlowUnitsType.MGD:
                    return value * (1 / Constants.MGDperCFS);
                case FlowUnitsType.IMGD:
                    return value * (1 / Constants.IMGDperCFS);
                case FlowUnitsType.AFD:
                    return value * (1 / Constants.AFDperCFS);
                case FlowUnitsType.LPS:
                    return value * (1 / Constants.LPSperCFS);
                case FlowUnitsType.LPM:
                    return value * (1 / Constants.LPMperCFS);
                case FlowUnitsType.MLD:
                    return value * (1 / Constants.MLDperCFS);
                case FlowUnitsType.CMH:
                    return value * (1 / Constants.CMHperCFS);
                case FlowUnitsType.CMD:
                    return value * (1 / Constants.CMHperCFS);
            }
            return value;
        }

        public static double ConvertPower(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value * (1 / Constants.KWperHP);

            return value;
        }

        public static double ConvertPressure(PressUnitsType type, double spGrav, double value)
        {
            switch (type)
            {
                case PressUnitsType.PSI:
                    return value;
                case PressUnitsType.KPA:
                    return value / (Constants.KPAperPSI * Constants.PSIperFT * spGrav);
                case PressUnitsType.METERS:
                    return value / (Constants.MperFT * spGrav);
            }
            return value;
        }

        public static double ConvertVolume(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value / (Constants.M3perFT3);

            return value;
        }

        public static double RevertArea(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value * (Constants.MperFT * Constants.MperFT);

            return value;
        }

        public static double RevertDistance(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value * Constants.MperFT;

            return value;
        }

        public static double RevertDiameter(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value * Constants.MMperFT;
            return value * Constants.INperFT;
        }

        public static double RevertFlow(FlowUnitsType flow, double value)
        {
            switch (flow)
            {
                case FlowUnitsType.CFS:
                    return value * Constants.LPSperCFS;
                case FlowUnitsType.GPM:
                    return value * Constants.GPMperCFS;
                case FlowUnitsType.MGD:
                    return value * Constants.MGDperCFS;
                case FlowUnitsType.IMGD:
                    return value * Constants.IMGDperCFS;
                case FlowUnitsType.AFD:
                    return value * Constants.AFDperCFS;
                case FlowUnitsType.LPS:
                    return value * Constants.LPSperCFS;
                case FlowUnitsType.LPM:
                    return value * Constants.LPMperCFS;
                case FlowUnitsType.MLD:
                    return value * Constants.MLDperCFS;
                case FlowUnitsType.CMH:
                    return value * Constants.CMHperCFS;
                case FlowUnitsType.CMD:
                    return value * Constants.CMHperCFS;
            }
            return value;
        }

        public static double RevertPower(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value * Constants.KWperHP;

            return value;
        }

        public static double RevertPressure(PressUnitsType type, double spGrav, double value)
        {
            switch (type)
            {
                case PressUnitsType.PSI:
                    return value;
                case PressUnitsType.KPA:
                    return value * (Constants.KPAperPSI * Constants.PSIperFT * spGrav);
                case PressUnitsType.METERS:
                    return value * (Constants.MperFT * spGrav);
            }
            return value;
        }

        public static double RevertVolume(UnitsType type, double value)
        {
            if (type == UnitsType.SI)
                return value * (Constants.M3perFT3);

            return value;
        }


    }

#endif

}