namespace ShrinkTutorial
{
    public interface IShrinkTutorialLocalizationProvider
    {
        bool TryResolve(string key, out string text);
    }

    public static class ShrinkTutorialLocalization
    {
        public static IShrinkTutorialLocalizationProvider Provider { get; set; }

        public static string Resolve(string key, string fallbackText)
        {
            if (!string.IsNullOrWhiteSpace(key) &&
                Provider != null &&
                Provider.TryResolve(key, out var localizedText) &&
                !string.IsNullOrWhiteSpace(localizedText))
            {
                return localizedText;
            }

            if (!string.IsNullOrWhiteSpace(fallbackText))
                return fallbackText;

            return key ?? string.Empty;
        }
    }
}