Dalamud/Dalamud/ClientLanguageExtensions.cs

using System;

namespace Dalamud
{
    /// <summary>
    /// Extension methods for the <see cref="ClientLanguage"/> class.
    /// </summary>
    public static class ClientLanguageExtensions
    {
        /// <summary>
        /// Converts a Dalamud ClientLanguage to the corresponding Lumina variant.
        /// </summary>
        /// <param name="language">Langauge to convert.</param>
        /// <returns>Converted langauge.</returns>
        public static Lumina.Data.Language ToLumina(this ClientLanguage language)
        {
            return language switch
            {
                ClientLanguage.Japanese => Lumina.Data.Language.Japanese,
                ClientLanguage.English => Lumina.Data.Language.English,
                ClientLanguage.German => Lumina.Data.Language.German,
                ClientLanguage.French => Lumina.Data.Language.French,
                _ => throw new ArgumentOutOfRangeException(nameof(language)),
            };
        }
    }
}