namespace LiveForum.IService.Others
{
    /// <summary>
    /// 系统设置服务接口
    /// </summary>
    public interface ISystemSettingsService
    {
        /// <summary>
        /// 获取配置值
        /// </summary>
        /// <param name="key">配置键</param>
        /// <returns>配置值，如果不存在返回null</returns>
        Task<string?> GetSettingAsync(string key);

        /// <summary>
        /// 设置配置值
        /// </summary>
        /// <param name="key">配置键</param>
        /// <param name="value">配置值</param>
        /// <param name="description">描述（可选，仅在新建时使用）</param>
        /// <returns>是否成功</returns>
        Task<bool> SetSettingAsync(string key, string value, string? description = null);
    }
}