public async Task <Announcement> RegisterAnnouncement(string title, string body, int announcementGenre, DateTime?endDate, string fileName, Stream fileStream)
{
var announcement = new Announcement(
new AnnouncementTitle(title),
body,
Enumeration.FromValue <AnnouncementGenre>(announcementGenre),
new RegisteredDate(DateTime.Today),
endDate.HasValue ? new EndDate(endDate.Value) : null,
attachedFilePath: null);
if (this.HasAttachment(fileName))
{
var filePath = await this.fileAccessor.UploadAsync(fileName, fileStream);
announcement.ChangeAttachedFilePath(new AttachedFilePath(filePath));
}
return(await this.repository.Add(announcement));
}