using InnovEnergy.Lib.Devices.Battery48TL;
using InnovEnergy.Lib.StatusApi;
using InnovEnergy.Lib.Units;
using InnovEnergy.Lib.Units.Composite;
using static InnovEnergy.Lib.Devices.Battery48TL.TemperatureState;

namespace InnovEnergy.App.SaliMax.Controller;

public static class AvgBatteriesStatus
{
    public static CombinedStatus<Battery48TLStatus>? Combine(this IReadOnlyList<Battery48TLStatus> stati)
    {
        var combined = stati.Count == 0 
                     ? null
                     : new Battery48TLStatus
        {
            Soc         = stati.Min(b => b.Soc),
            Temperature = stati.Average(b => b.Temperature),
            Dc          = new DcBus
            {
                Voltage = stati.Average(b => b.Dc.Voltage),
                Current = stati.Sum(b => b.Dc.Current),
            },

            Alarms   = stati.SelectMany(b => b.Alarms).Distinct().ToList(),
            Warnings = stati.SelectMany(b => b.Warnings).Distinct().ToList(),

            MaxChargingPower    = stati.Sum(b => b.MaxChargingPower),
            MaxDischargingPower = stati.Sum(b => b.MaxDischargingPower),

            Heating = stati.Any(b => b.Heating),
            
            AmberLed = LedState.Off,  // not used for combined battery
            BlueLed  = LedState.Off,
            RedLed   = LedState.Off,
            GreenLed = LedState.Off,   
            
            CellsVoltage     = stati.Average(b => b.CellsVoltage),
            ConnectedToDc    = stati.Any(b => b.ConnectedToDc),
            
            TemperatureState = stati.Any(b => b.TemperatureState == OperatingTemperature) // TODO: revisit when we have the overheated state
                             ? OperatingTemperature
                             : Cold,
            
            TotalCurrent     = stati.Average(b => b.TotalCurrent),
            
            EocReached       = stati.All(b => b.EocReached),                      
        };

        return new CombinedStatus<Battery48TLStatus>
        {
            Combined = combined!,
            Children = stati
        };
    }
}