private static PageTuple GetPageTup(PageRequest req, DateTime?lastModif, int num)
{
string response = "page " + num;
DateTime?nextModif = (lastModif < DateTime.Now)
? lastModif?.AddDays(1)
: null;
PageTuple pageTup = new PageTuple(response, nextModif);
return(pageTup);
}
public static IObservable <PageTuple> GetPages(DateTime startModif)
{
DateTime from = DateTime.Today.AddDays(-2);
DateTime until = DateTime.Today;
PageRequest req = new PageRequest("url", "chan1", from, until, null);
PageTuple startTup = new PageTuple(null, startModif);
IObservable <PageTuple> pages = Observable.Range(1, 100)
.Scan(startTup, (acc, num) => GetPageTup(req, acc.LastModif, num))
.TakeWhile(page => page.LastModif != null);
return(pages);
}