namespace FileService.Application.UploadFile
{
    /// <summary>
    /// 单次直传命令（小文件，如头像/封面，一次性上传并同步落库）。
    /// </summary>
    /// <param name="OwnerId">上传者</param>
    /// <param name="FileName">原始文件名</param>
    /// <param name="ContentType">内容类型</param>
    /// <param name="FileSize">文件大小</param>
    /// <param name="Content">文件流</param>
    /// <param name="IsPublic">是否落到公开桶（可生成直链）</param>
    /// <param name="CheckSum">可选校验值（md5）</param>
    public sealed record SimpleUploadCommand(
        Guid OwnerId,
        string FileName,
        string ContentType,
        long FileSize,
        Stream Content,
        bool IsPublic,
        string? CheckSum = null);
}