public async Task <int> RefreshStatus()
{
Task <Beleg[]> backend = BelegService.GetBelegList(BelegService.USER);
Task <Beleg[]> local = Storage.Database.GetBelege();
return(await DoRefreshStatus(await backend, await local));
}
internal async Task <int> DoRefreshStatus(Beleg[] backend, Beleg[] local)
{
IDictionary <int, Beleg> locals = new Dictionary <int, Beleg>();
foreach (Beleg beleg in local)
{
locals.Add(beleg.Belegnummer.Value, beleg);
}
List <Beleg> updates = new List <Beleg>();
foreach (Beleg beleg in backend)
{
int nr = beleg.Belegnummer.Value;
if (beleg.Status < Beleg.StatusEnum.GEBUCHT || locals.ContainsKey(nr))
{
Beleg loc;
if (locals.TryGetValue(nr, out loc) && beleg.BelegSize == loc.BelegSize)
{
beleg.Image = loc.Image;
}
else
{
beleg.Image = await BelegService.GetBelegImage(BelegService.USER, nr);
}
if (loc != null)
{
locals.Remove(nr);
}
updates.Add(beleg);
}
}
List <Beleg> deletes = new List <Beleg>();
foreach (Beleg beleg in locals.Values)
{
if (beleg.Status > Beleg.StatusEnum.ERFASST)
{
deletes.Add(beleg);
}
}
await database.RemoveBelege(deletes.ToArray());
await database.StoreBelege(updates.ToArray());
return(updates.Count + deletes.Count);
}
internal async Task ExportBeleg(Beleg beleg)
{
if (beleg.Image == null)
{
return;
}
try
{
beleg.Belegnummer = await BelegService.CreateBeleg(BelegService.USER, beleg);
}
catch (Exception ex)
{
//TODO what?
return;
}
if (!beleg.Belegnummer.HasValue)
{
throw new Exception("Vermisse Beleg-ID!");
}
if (beleg.Image != null)
{
try
{
beleg.Thumbnail = await BelegService.SaveBelegImage(BelegService.USER, beleg.Belegnummer.Value, beleg.Image);
}
catch (Exception ex)
{
//TODO what?
}
}
beleg.Status = Beleg.StatusEnum.EXPORTIERT;
await database.StoreBeleg(beleg);
}
