sharee.bike-App/TINKLib/Model/Bikes/BikeInfoNS/DriveNS/BatteryNS/Battery.cs

using Serilog;

namespace TINK.Model.Bikes.BikeInfoNS.DriveNS.BatteryNS
{
    public class Battery : IBattery
    {
        private Battery() { }

        /// <summary>
        /// Holds the current charging level of the battery in percent, double.NaN if unknown.
        /// </summary>
        public double CurrentChargePercent { get; private set; } = double.NaN;

        /// <summary>
        /// Holds the current chargeing level of the battery in bars, null if unkonwn.
        /// </summary>
        public int? CurrentChargeBars { get; private set; } = null;

        /// <summary>
        /// Holds the maximum chargeing level of the battery in bars, null if unkonwn.
        /// </summary>
        public int? MaxChargeBars { get; private set; } = null;

        /// <summary>
        /// Holds whether backend is aware of battery charging level.
        /// </summary>
        public bool? IsBackendAccessible { get; private set; } = null;

        /// <summary>
        /// Holds whether to display battery level or not.
        /// </summary>
        public bool? IsHidden { get; private set; } = null;

        public class Builder
        {
            /// <summary>
            /// Holds the current chargeing level of the battery in bars.
            /// </summary>
            public int? CurrentChargeBars { get; set; } = null;

            /// <summary>
            /// Holds the maximum chargeing level of the battery in bars.
            /// </summary>
            public int? MaxChargeBars { get; set; } = null;

            /// <summary>
            /// Holds the current charging level of the battery in percent.
            /// </summary>
            public double CurrentChargePercent { get; set; } = double.NaN;

            /// <summary>
            /// Holds whether backend is aware of battery charging level.
            /// </summary>
            public bool? IsBackendAccessible { get; set; } = null;

            /// <summary>
            /// Holds whether to display battery level or not.
            /// </summary>
            public bool? IsHidden { get; set; } = null;

            public Battery Build()
            {
                if (!double.IsNaN(CurrentChargePercent)
                    && (CurrentChargePercent < 0 || 100 < CurrentChargePercent))
                {
                    // Invalid filling level detected
                    CurrentChargePercent = double.NaN;
                }

                if (CurrentChargeBars < 0)
                {
                    // Current value of bars must never be smaller zero.
                    CurrentChargeBars = null;
                }

                if (MaxChargeBars < 0)
                {
                    // Max value of bars must never be smaller zero.
                    MaxChargeBars = null;
                }

                if (CurrentChargeBars != null
                    && MaxChargeBars == null)
                {
                    // If current charge bars is set, max charge must be set as well.
                    Log.ForContext<Battery>().Error($"Current bars value can not be set to {CurrentChargeBars} if max bars is not se.");
                    CurrentChargeBars = null;
                }

                if (CurrentChargeBars != null
                    && MaxChargeBars != null
                    && CurrentChargeBars > MaxChargeBars)
                {
                    // If current charge bars must never be larger than max charge bars.
                    Log.ForContext<Battery>().Error($"Invalid current bars value {CurrentChargeBars} detected. Value must never be largen than max value bars {MaxChargeBars}.");
                    CurrentChargeBars = null;
                }

                return new Battery
                {
                    CurrentChargeBars = CurrentChargeBars,
                    MaxChargeBars = MaxChargeBars,
                    CurrentChargePercent = CurrentChargePercent,
                    IsBackendAccessible = IsBackendAccessible,
                    IsHidden = IsHidden
                };
            }
        }
    }
}