/// <summary>
///
/// </summary>
public void LoadMoreDialogs()
{
var getDialogs = new ExecuteDialogs(Dialogs.Count, _UpdateDialogsList);//new DialogsGet(DIALOGS_COUNT, Dialogs.Count, _friendsCache.GetItems(), _UpdateDialogsList);
getDialogs.Execute();
}
/// <summary>
///
/// </summary>
public void UpdateDialogs()
{
// Get MAX of latest dialogs (because of offset 0).
var getDialogs = new ExecuteDialogs(0, (dialogs, profiles) => //new DialogsGet(DIALOGS_COUNT, 0, _friendsCache.GetItems(), dialogs =>
{
try
{
_AddDistinctUserInfo(profiles);
var cached = _dialogsCache.GetItems();
// Find dialogs which should be added or updated.
foreach (var dialog in dialogs)
{
Dialog current_cached = cached.FirstOrDefault(x => (x.Uid == dialog.Uid && !x.IsConference && !dialog.IsConference) ||
(x.ChatId == dialog.ChatId && x.IsConference && dialog.IsConference));
if (current_cached == null) // Completely new dialog.
_dialogsCache.AddItem(dialog);
else // Replace with latest one
_dialogsCache.RenewItem(current_cached, dialog);
}
_dialogsCache.Save();
_ReinitializeCounters();
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
try
{
_PushDialogsToView();
}
catch (Exception ex)
{
Debug.WriteLine("UpdateDialogs->_PushDialogsToView failed in EntityService: " + ex.Message);
}
});
}
catch (Exception ex)
{
Debug.WriteLine("EntityService _UpdateDialogsList failed: " + ex.Message);
}
});
getDialogs.Execute();
}
private void _InitializeDialogsList()
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
try
{
var cachedDialogs = _dialogsCache.GetItems();
if (cachedDialogs.Any())
{
_PushDialogsToView();
//int maxMid = cachedDialogs.Where(x => !x.IsConference).Max(y => y.ChatId); // Find max message Id in dialogs, since dialogs contains LATEST messages.
//App.Current.LongPollService.GetHistory(maxMid);
_waitHandle.Set();
}
else
{
// Get only and only if cache is empty, because initially we load only 100-200 dialogs until use scrolled down
// (so, probably, there may be situation where user never load all history).
var getDialogs = new ExecuteDialogs(0, _UpdateDialogsList);// new DialogsGet(DIALOGS_COUNT, 0, _friendsCache.GetItems(), _UpdateDialogsList);//
getDialogs.Execute();
}
}
catch (Exception ex)
{
Debug.WriteLine("_InitializeDialogsList failed: " + ex.Message);
_waitHandle.Set();
}
});
}
