public async Task Sync(SyncExtent extent)
{
lastSync = DateTime.Now;
if (extent == SyncExtent.None)
{
return;
}
// Force an update to the connection status, because it's possible to turn off the network on
// a device and hit the sync button before the Connectivity plugin has received a connection change
// event to update its status. Fortunately, its IsConnected property changes quickly, so make sure
// IsOffline is updated from that before we check it.
IsOffline = !CrossConnectivity.Current.IsConnected;
if (IsOffline)
{
// Remember to sync when we go back online
syncWhenReconnected = true;
syncWhenReconnectedExtent = extent;
return;
}
IsSyncing = true;
Task <SyncResult> taskCategories = Empty <SyncResult> .Task;
Task <SyncResult> taskSettings = Empty <SyncResult> .Task;
if (extent == SyncExtent.All)
{
Task <SyncResult> taskAP = dataModel.SyncAuthProviders(); // Fire and forget
taskCategories = dataModel.SyncCategories();
}
if (extent == SyncExtent.All || extent == SyncExtent.SettingsAndItems)
{
taskSettings = dataModel.SyncSettings();
}
// Do both categories and settings before syncing items
await Task.WhenAll(taskCategories, taskSettings);
await dataModel.SyncItems();
IsSyncing = false;
// This makes sure the Configuration knows it can reset its changed flag.
if (applyConfiguration)
{
dataModel.Configuration.ConfigurationApplied();
}
}
public async Task CheckTimeAndSync(TimeSpan elapsed, Boolean alwaysDoItems)
{
SyncExtent extent = alwaysDoItems ? SyncExtent.Items : SyncExtent.None;
if (elapsed.TotalMinutes >= 30)
{
extent = SyncExtent.SettingsAndItems;
}
if (elapsed.TotalDays >= 1)
{
extent = SyncExtent.All;
}
await Sync(extent);
}
