using System.Globalization;
using System.Resources;

namespace Resources
{
    internal static class Messages
    {
        private static ResourceManager _resourceManager;
        public static ResourceManager ResourceManager
        {
            get
            {
                if (_resourceManager == null)
                {
                    _resourceManager = new ResourceManager();
                }
                return _resourceManager;
            }
        }

        public static string Example => ResourceManager.GetString("Example", CultureInfo.CurrentUICulture);
    }

    public static class MessagesWrapper
    {
        public static string Example(CultureInfo culture) => Messages.ResourceManager.GetString("Example", culture);
    }

    public interface IResourceManager
    {
        string GetString(string key, CultureInfo culture);
    }

    public class ResourceManagerWrapper : IResourceManager
    {
        private ResourceManager _resourceManager;

        public ResourceManagerWrapper(ResourceManager rm)
        {
            _resourceManager = rm;
        }

        public string GetString(string key, CultureInfo culture) => _resourceManager.GetString(key, culture);
    }

    public static class NewMessagesWrapper
    {
        private static IResourceManager _resourceManager;
        private static Resource => _resourceManager ?? new ResourceManagerWrapper(Messages.ResourceManager);

        public static void SetResourceManager(IResourceManager rm)
        {
            _resourceManager = rm;
        }

        public static string Example(CultureInfo culture) => Resource.GetString("Example", culture);
    }
}