using InnovEnergy.Lib.Protocols.Modbus.Clients;
using InnovEnergy.Lib.Protocols.Modbus.Connections;

namespace InnovEnergy.Lib.Devices.EmuMeter;

public class EmuMeterDevice
{
    private ModbusTcpClient Modbus { get; }

    public EmuMeterDevice(String hostname, UInt16 port = 502, Byte slaveId = 1)
    {
        var connection  = new ModbusTcpConnection(hostname, port);
        Modbus = new ModbusTcpClient(connection, slaveId);
    }

    public EmuMeterStatus? ReadStatus()
    {
        try
        {
            return TryReadStatus();
        }
        catch (Exception)
        {
            Modbus.CloseConnection();
            return null;
        }
    }


    private EmuMeterStatus TryReadStatus()
    {
        // Console.WriteLine("Reading Emu Meter Data");
        
        var powerCurrent = Modbus.ReadHoldingRegisters(9000, 108).ToDecimals();  // TODO "ModbusRegisters"
        var voltageFreq  = Modbus.ReadHoldingRegisters(9200, 112).ToDecimals(); // To check with Ivo
        var energyTotal  = Modbus.ReadHoldingRegisters(6000, 24) .ToUInt64s();
        var energyPhases = Modbus.ReadHoldingRegisters(6100, 104).ToUInt64s();
        
        return new EmuMeterStatus
        {
            ActivePowerL123 = powerCurrent[0],
            ActivePowerL1   = powerCurrent[1],
            ActivePowerL2   = powerCurrent[2],
            ActivePowerL3   = powerCurrent[3],

            ReactivePowerL123 = powerCurrent[5],
            ReactivePowerL1   = powerCurrent[6],
            ReactivePowerL2   = powerCurrent[7],
            ReactivePowerL3   = powerCurrent[8],

            ApparentPowerL123 = powerCurrent[10],
            ApparentPowerL1   = powerCurrent[11],
            ApparentPowerL2   = powerCurrent[12],
            ApparentPowerL3   = powerCurrent[13],

            CurrentL123 = powerCurrent[50],
            CurrentL1   = powerCurrent[51],
            CurrentL2   = powerCurrent[52],
            CurrentL3   = powerCurrent[53],

            VoltageL1N  = voltageFreq[0],
            VoltageL2N  = voltageFreq[1],
            VoltageL3N  = voltageFreq[2],
            VoltageL1L2 = voltageFreq[3],
            VoltageL2L3 = voltageFreq[4],
            VoltageL3L1 = voltageFreq[5],

            PowerFactorL1 = voltageFreq[50],
            PowerFactorL2 = voltageFreq[51],
            PowerFactorL3 = voltageFreq[52],
            
            Frequency = voltageFreq[55],

            EnergyImportL123 = energyTotal[0 / 4]  / 1000.0m,
            EnergyExportL123 = energyTotal[20 / 4] / 1000.0m,

            EnergyImportL1 = energyPhases[0 / 4]  / 1000.0m,
            EnergyExportL1 = energyPhases[20 / 4] / 1000.0m,

            EnergyImportL2 = energyPhases[40 / 4] / 1000.0m,
            EnergyExportL2 = energyPhases[60 / 4] / 1000.0m,

            EnergyImportL3 = energyPhases[80 / 4]  / 1000.0m,
            EnergyExportL3 = energyPhases[100 / 4] / 1000.0m,
        };
    }

}