using XP.Common.Localization.Enums;

namespace XP.Common.Localization.Interfaces
{
    /// <summary>
    /// 本地化配置接口 | Localization configuration interface
    /// 负责语言设置的加载和保存 | Responsible for loading and saving language settings
    /// </summary>
    public interface ILocalizationConfig
    {
        /// <summary>
        /// 获取保存的语言设置 | Get saved language setting
        /// </summary>
        /// <returns>语言设置，如果未设置则返回 null | Language setting, or null if not set</returns>
        SupportedLanguage? GetSavedLanguage();

        /// <summary>
        /// 保存语言设置 | Save language setting
        /// </summary>
        /// <param name="language">要保存的语言 | Language to save</param>
        void SaveLanguage(SupportedLanguage language);

        /// <summary>
        /// 获取系统默认语言 | Get system default language
        /// </summary>
        /// <returns>系统默认语言 | System default language</returns>
        SupportedLanguage GetSystemDefaultLanguage();
    }
}