ConfigLoader.cs

using System.Reflection;
using Rage;

namespace INIUtility{
    public static class ConfigLoader{
        public static T LoadSettings<T>(string iniPath) where T : new()
        {
            Game.LogTrivial("IniConfigUtility: Loading settings...");
            var manager  = new ConfigManager(iniPath);
            var settings = new T();

            foreach (var prop in typeof(T).GetProperties())
            {
                var attr = prop.GetCustomAttribute<ConfigOptionAttribute>();
                if (attr == null) continue;

                var defaultValue = prop.GetValue(settings);

                var getValueMethod = typeof(ConfigManager).GetMethod(nameof(ConfigManager.GetValue))?.MakeGenericMethod(prop.PropertyType);

                if (getValueMethod != null)
                {
                    var loadedValue = getValueMethod.Invoke(manager, new[] { attr.Section, attr.Key, defaultValue, attr.Comment });

                    prop.SetValue(settings, loadedValue);
                }
                else
                {
                    Game.LogTrivial($"IniConfigUtility: Failed to get value for property '{prop.Name}' from section '{attr.Section}' with key '{attr.Key}'. Using default value.");
                }
            }

            Game.LogTrivial("IniConfigUtility: Settings loaded successfully.");
            return settings;
        }

        /// <summary>
        ///     Saves the current settings object back to the INI file.
        /// </summary>
        public static void SaveSettings<T>(T settings, string iniPath)
        {
            Game.LogTrivial("IniConfigUtility: Saving settings...");
            var manager = new ConfigManager(iniPath);

            foreach (var prop in typeof(T).GetProperties())
            {
                var attr = prop.GetCustomAttribute<ConfigOptionAttribute>();
                if (attr == null) continue;

                var value = prop.GetValue(settings);

                var setValueMethod = typeof(ConfigManager).GetMethod(nameof(ConfigManager.SetValue))?.MakeGenericMethod(prop.PropertyType);

                if (setValueMethod != null)
                    setValueMethod.Invoke(manager, new[] { attr.Section, attr.Key, value });
                else
                    Game.LogTrivial($"IniConfigUtility: Failed to find SetValue method for property '{prop.Name}'.");
            }

            Game.LogTrivial("IniConfigUtility: Settings saved successfully.");
        }
    }
}