public IObservable <Unit> AddLibrary(string libraryId)
{
return(Observable.Return(libraryId)
.SelectMany(id =>
{
if (String.IsNullOrEmpty(id))
{
return Observable.Throw <LibraryInfo>(new ArgumentException(FileLanguage.Error_LibraryIdEmpty));
}
if (LoggedUser.Libraries.Count(library => library.ServerId == libraryId) != 0)
{
return Observable.Throw <LibraryInfo>(new ArgumentException(FileLanguage.LIBRARY_ALREADY_EXISTS));
}
return Transport.GetLibraryInfo(id);
})
.ObserveOnDispatcher()
.Do(libInfo =>
{
Library library = new Library(libInfo.Id, libInfo.Title, libInfo.Version);
StatisticsManager.LogAddLibrary(library);
LoggedUser.Libraries.Add(library);
})
.Select(_ => new Unit()));
}