public async Task <Entry> RestoreAsync()
{
if (IsLocalMode)
{
return(await _fallbackPersister.RestoreAsync());
}
try
{
var client = GetClient();
var username = _authManager.AuthData.Username;
var entryDate = Entry.GetEntryDate();
var url = string.Format("/api/entries/find/{0}/{1}", username, entryDate);
var response = await client.GetAsync(url);
if (response.IsSuccessStatusCode)
{
var serialized = await response.Content.ReadAsStringAsync();
var entries = JsonConvert.DeserializeObject <Entry[]>(serialized);
return(entries.OrderBy(x => x.EntryDate).LastOrDefault());
}
else
{
IsLocalMode = true;
}
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
IsLocalMode = true;
}
if (IsLocalMode)
{
return(await _fallbackPersister.RestoreAsync());
}
return(await Task.FromResult <Entry>(null));
}
private async Task ChangeStateAsync(Func <IWatcherState> action)
{
var entry = await _persister.RestoreAsync();
var interval = Settings.RefreshInterval;
if (entry != null && entry.SessionId != Session.SessionId && (DateTime.UtcNow - entry.Timestamp) < interval)
{
await _dialog.AlertAsync("Alert", "Syncing in progress... Please try again later.");
return;
}
State = action();
RaiseAllCanExecute();
RaiseAllPropertyChanged();
var username = _authManager.AuthData.Username;
entry = await Entry.CreateAsync(username, State.StateId, State.Data);
await _persister.PersistAsync(entry);
}