laatzen/Common/Ui/GenesisToolBox/Infrastructure/Appsettings.cs

namespace Xylem.Common.Ui.GenesisToolBox.Infrastructure
{
    using System;
    using System.Configuration;
    using System.Linq;
    using System.Runtime.CompilerServices;
    using System.Windows.Forms;

    internal static class Appsettings
    {
        private const string EMPTY = "";
        private const string SETTINGS_SECTION = "appSettings";
        private static Configuration configuration 
            = ConfigurationManager.OpenExeConfiguration(Application.ExecutablePath);
        private static KeyValueConfigurationCollection settings
            => configuration.AppSettings.Settings;

        public static short GMHPort
        {
            get => GetInt16();
            set => SetValue(value);
        }

        public static int TemperatureChecksSec
        {
            get => GetInt32();
            set => SetValue(value);
        }

        public static int MessurementStopHours
        {
            get => GetInt32();
            set => SetValue(value);
        }
        public static Double MessurementStepMs { get; internal set; }
        public static Double MessurementDauerMs { get; internal set; }
        public static Double BackwardsStepMs { get; internal set; }
        public static Int32 MessurementDauer { get; internal set; }
        public static Int32 MessurementStep { get; internal set; }

        private static short GetInt16([CallerMemberName] string property = EMPTY)
        {
            var value = settings[property]?.Value?.ToString() ?? string.Empty;

            if (short.TryParse(value, out short result))
            {
                return result;
            }

            return default(short);
        }

        private static int GetInt32([CallerMemberName] string property = EMPTY)
        {
            var value = settings[property]?.Value?.ToString() ?? string.Empty;

            if (int.TryParse(value, out int result))
            {
                return result;
            }

            return default(short);
        }

        private static void SetValue<T>(this T value, [CallerMemberName] string property = EMPTY)
        {
            var key = settings.AllKeys.FirstOrDefault(x => x.Equals(property, StringComparison.OrdinalIgnoreCase));

            if (string.IsNullOrWhiteSpace(key))
            {
                key = property;

                settings.Add(key, string.Empty);
            }
            
            settings[key].Value = value?.ToString() ?? EMPTY;
        }

        internal static void SaveSettings()
        {
            configuration.Save(ConfigurationSaveMode.Full);
            ConfigurationManager.RefreshSection(SETTINGS_SECTION);

            configuration = ConfigurationManager.OpenExeConfiguration(Application.ExecutablePath);
        }
    }
}