internal async Task Initiate()
{
// desubscribe from all day monitors and clear them up
foreach (var monitor in m_dayMonitors)
subscribeToThresholdMonitor(monitor.Value, false);
m_dayMonitors.Clear();
subscribeToUserCache(false);
var allSets = (ContractSet[])Enum.GetValues(typeof(ContractSet));
// desubscribe from update to userthresholds and clear them
Array.ForEach(m_editLines.ToArray(), x => subscribeToEditLine(x, false));
m_editLines.Clear();
foreach (var set in allSets)
{
// set up the lines by which the user will edit the thresholds
var userConfig = await UserThresholdCache.Intance().GetOrCreateSpreadVolumeMonitorForSet(set);
var line = new ThresholdEditLine(set, userConfig.Threshold);
subscribeToEditLine(line);
m_editLines.Add(line);
var ds = DaySet.Get(set);
// if the contract set is live, then set up a monitor on that day, rebuild matching lines and subscribe to updates from it
if (ds.Status.IsLive())
{
var newMonitor = new ThresholdMonitor(ds.NextRollDay, userConfig);
m_dayMonitors.Add(set, newMonitor);
subscribeToThresholdMonitor(newMonitor);
rebuildMatchingLines(newMonitor);
}
}
// subscribe to update on the user's threshold items
subscribeToUserCache();
HasBeenInitiated = true;
}
private void subscribeToThresholdMonitor(ThresholdMonitor monitor_, bool do_ = true)
{
monitor_.ValueUpdated -= handleMonitorFired;
if (!do_)
return;
monitor_.ValueUpdated += handleMonitorFired;
}
private void rebuildMatchingLines(ThresholdMonitor monitor_)
{
var begin = monitor_.Source.GetDayBeginEndMonitor().StartDate;
try
{
OnNotificationsRebuilding(new NotificationsRebuildingEventArgs(monitor_.Source.Set, true));
m_rebuilding = true;
monitor_.ReplayFrom(begin);
}
finally
{
m_rebuilding = false;
OnNotificationsRebuilding(new NotificationsRebuildingEventArgs(monitor_.Source.Set, false));
}
}
/// <summary>
/// handler for the user cache being updated - needs to rebuild the list based on the new update
/// </summary>
/// <param name="sender"></param>
/// <param name="e_"></param>
private void handleUserCacheChanged(object sender, MongoBackCacheChangedArgs<FlowThreshold> e_)
{
if (e_ == null || e_.Item == null) return;
if (e_.Item.Field != DayField.SpreadVolume) return;
#region ensure edit line is in line - should always be
{
var editLine = m_editLines.FirstOrDefault(x => x.Set == e_.Item.Set);
if (editLine == null) return;
// this shouldn't happen
if (editLine.Threshold != e_.Item.Threshold)
{
subscribeToEditLine(editLine, false);
editLine.Threshold = e_.Item.Threshold;
subscribeToEditLine(editLine);
}
}
#endregion
// clearup any existing monitor
if (m_dayMonitors.ContainsKey(e_.Item.Set))
{
m_dayMonitors[e_.Item.Set].Dispose();
subscribeToThresholdMonitor(m_dayMonitors[e_.Item.Set], false);
}
var ds = DaySet.Get(e_.Item.Set);
if (!ds.Status.IsLive())
return;
var newMonitor = new ThresholdMonitor(ds.NextRollDay, e_.Item);
m_dayMonitors[e_.Item.Set] = newMonitor;
subscribeToThresholdMonitor(m_dayMonitors[e_.Item.Set]);
rebuildMatchingLines(newMonitor);
}
