// ==========================================================================
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex UG (haftungsbeschraenkt)
//  All rights reserved. Licensed under the MIT license.
// ==========================================================================

using System.Globalization;

namespace Squidex.Infrastructure.Commands
{
    public sealed class CommandRequest
    {
        public IAggregateCommand Command { get; }

        public string Culture { get; }

        public string CultureUI { get; }

        public CommandRequest(IAggregateCommand command, string culture, string cultureUI)
        {
            Command = command;

            Culture = culture;
            CultureUI = cultureUI;
        }

        public static CommandRequest Create(IAggregateCommand command)
        {
            return new CommandRequest(command,
                CultureInfo.CurrentCulture.Name,
                CultureInfo.CurrentUICulture.Name);
        }

        public void ApplyContext()
        {
            var culture = GetCulture(Culture);

            if (culture != null)
            {
                CultureInfo.CurrentCulture = culture;
            }

            var uiCulture = GetCulture(CultureUI);

            if (uiCulture != null)
            {
                CultureInfo.CurrentUICulture = uiCulture;
            }
        }

        private static CultureInfo? GetCulture(string name)
        {
            if (string.IsNullOrWhiteSpace(name))
            {
                return null;
            }

            try
            {
                return CultureInfo.GetCultureInfo(name);
            }
            catch (CultureNotFoundException)
            {
                return null;
            }
        }
    }
}