OmronFinsMemoryAreaMapper.cs

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using Dreamine.PLC.Abstractions.Devices;
using Dreamine.PLC.Omron.Fins.Protocol;
 
namespace Dreamine.PLC.Omron.Fins.Devices;

public static class OmronFinsMemoryAreaMapper
{
    public static byte Map(PlcAddress address, bool bitAccess)
    {
        return address.DeviceType switch
        {
            PlcDeviceType.D => bitAccess ? OmronFinsMemoryAreaCode.DmBit : OmronFinsMemoryAreaCode.DmWord,
            PlcDeviceType.W => bitAccess ? OmronFinsMemoryAreaCode.WorkBit : OmronFinsMemoryAreaCode.WorkWord,
            PlcDeviceType.R => bitAccess ? OmronFinsMemoryAreaCode.HoldingBit : OmronFinsMemoryAreaCode.HoldingWord,
            PlcDeviceType.M => bitAccess ? OmronFinsMemoryAreaCode.CioBit : OmronFinsMemoryAreaCode.CioWord,
            PlcDeviceType.X => bitAccess ? OmronFinsMemoryAreaCode.CioBit : OmronFinsMemoryAreaCode.CioWord,
            PlcDeviceType.Y => bitAccess ? OmronFinsMemoryAreaCode.CioBit : OmronFinsMemoryAreaCode.CioWord,
            _ => throw new NotSupportedException($"Unsupported FINS device type: {address.DeviceType}.")
        };
    }

    public static PlcDeviceType ToDeviceType(byte areaCode)
    {
        return areaCode switch
        {
            OmronFinsMemoryAreaCode.DmBit or OmronFinsMemoryAreaCode.DmWord => PlcDeviceType.D,
            OmronFinsMemoryAreaCode.WorkBit or OmronFinsMemoryAreaCode.WorkWord => PlcDeviceType.W,
            OmronFinsMemoryAreaCode.HoldingBit or OmronFinsMemoryAreaCode.HoldingWord => PlcDeviceType.R,
            OmronFinsMemoryAreaCode.CioBit or OmronFinsMemoryAreaCode.CioWord => PlcDeviceType.M,
            _ => PlcDeviceType.Unknown
        };
    }

    public static bool IsBitArea(byte areaCode)
    {
        return areaCode is OmronFinsMemoryAreaCode.CioBit
            or OmronFinsMemoryAreaCode.WorkBit
            or OmronFinsMemoryAreaCode.HoldingBit
            or OmronFinsMemoryAreaCode.DmBit;
    }
}