using InnovEnergy.Lib.Protocols.Modbus.Reflection.Attributes;
using InnovEnergy.Lib.StatusApi.DeviceTypes;
using InnovEnergy.Lib.Units.Composite;
using static System.Math;


#pragma warning disable CS0649

namespace InnovEnergy.Lib.Devices.IEM3kGridMeter;

using Float32 = Single;


[AddressOffset(-2)] // why?
public class Iem3KGridMeterRegisters : IAc3Meter
{
    private const Float32 ZeroBecauseReactivePowerNotSupported = 0;
    
    // TODO
    
    [HoldingRegister<Float32>(3054)] public Float32 ActivePowerL1;  // in Kw 
    [HoldingRegister<Float32>(3056)] public Float32 ActivePowerL2;  // in Kw
    [HoldingRegister<Float32>(3058)] public Float32 ActivePowerL3;  // in Kw
    [HoldingRegister<Float32>(3060)] public Float32 TotalActivePower;  // in Kw

    [HoldingRegister<Float32>(3000)] public Float32 CurrentL1;
    [HoldingRegister<Float32>(3002)] public Float32 CurrentL2;
    [HoldingRegister<Float32>(3004)] public Float32 CurrentL3;
    //
    [HoldingRegister<Float32>(3028)] public Float32 VoltageL1N;
    [HoldingRegister<Float32>(3030)] public Float32 VoltageL2N;
    [HoldingRegister<Float32>(3032)] public Float32 VoltageL3N;
    
    [HoldingRegister<Float32>(3518)] public Float32 ActiveEnergyImportL1;
    [HoldingRegister<Float32>(3522)] public Float32 ActiveEnergyImportL2;
    [HoldingRegister<Float32>(3526)] public Float32 ActiveEnergyImportL3;

    [HoldingRegister<Float32>(45100)] public Float32 TotalActiveImport;
    [HoldingRegister<Float32>(45102)] public Float32 TotalActiveExport;
    
    [HoldingRegister<Float32>(3110)] private Float32 _frequency;
    
    public Ac3Bus Ac => new Ac3Bus
    {
        L1 = new ()
        {
            Current = Abs(CurrentL1),
            Voltage = Abs(VoltageL1N),
            Phi     = Atan2(ZeroBecauseReactivePowerNotSupported, ActivePowerL1)
        },
        L2 = new ()
        {
            Current = Abs(CurrentL2),
            Voltage = Abs(VoltageL2N),
            Phi     = Atan2(ZeroBecauseReactivePowerNotSupported, ActivePowerL2)
        },
        L3 = new ()
        {
            Current = Abs(CurrentL3),
            Voltage = Abs(VoltageL3N),
            Phi     = Atan2(ZeroBecauseReactivePowerNotSupported, ActivePowerL3)
        },
        Frequency = _frequency
    };
    
}