protected override void UpdateTrigger()
{
var eventTrigger = EventTrigger;
if (eventTrigger == null)
{
return;
}
MatchEventsFromTriggerIfNecessary();
RemovePendingEventsFromTrigger();
foreach (var kvp in targetValueMap)
{
var characteristic = kvp.Key;
var triggerValue = kvp.Value;
var newEvent = new HMCharacteristicEvent(characteristic, triggerValue);
SaveTriggerGroup.Enter();
eventTrigger.AddEvent(newEvent, error => {
if (error != null)
{
Errors.Add(error);
}
SaveTriggerGroup.Leave();
});
}
SavePredicate();
}
// Loops through the characteristic events in the trigger.
// If any characteristics in our map table are also in the event,
// replace the value with the one we have stored and remove that entry from our map table.
void MatchEventsFromTriggerIfNecessary()
{
var eventTrigger = EventTrigger;
if (eventTrigger == null)
{
return;
}
// Find events who's characteristic is in our map table.
foreach (var e in eventTrigger.CharacteristicEvents())
{
INSCopying triggerValue;
if (targetValueMap.TryGetValue(e.Characteristic, out triggerValue))
{
SaveTriggerGroup.Enter();
e.UpdateTriggerValue(triggerValue, error => {
if (error != null)
{
Errors.Add(error);
}
SaveTriggerGroup.Leave();
});
}
}
}
// Completes one of two actions based on the current status of the `trigger` object:
// 1. Updates the existing trigger.
// 2. Creates a new trigger.
public void SaveTriggerWithName(string name, IEnumerable <HMActionSet> actionSets, Action <HMTrigger, IEnumerable <NSError> > completion)
{
Name = name;
if (Trigger != null)
{
// Let the subclass update the trigger.
UpdateTrigger();
UpdateNameIfNecessary();
ConfigureWithActionSets(actionSets);
}
else
{
Trigger = NewTrigger();
SaveTriggerGroup.Enter();
Home.AddTrigger(Trigger, error => {
if (error != null)
{
errors.Add(error);
}
else
{
ConfigureWithActionSets(actionSets);
}
SaveTriggerGroup.Leave();
});
}
// Call the completion block with our event trigger and any accumulated errors from the saving process.
SaveTriggerGroup.Notify(DispatchQueue.MainQueue, () => {
CleanUp();
completion(Trigger, errors);
});
}
// Updates the predicates and saves the new, generated predicate to the event trigger.
protected void SavePredicate()
{
UpdatePredicates();
SaveTriggerGroup.Enter();
var eventTrigger = EventTrigger;
if (eventTrigger != null)
{
eventTrigger.UpdatePredicate(NewPredicate(), error => {
if (error != null)
{
Errors.Add(error);
}
SaveTriggerGroup.Leave();
});
}
}
// Updates the trigger's recurrence components, entering and leaving the dispatch group if necessary.
// If the trigger's components are already equal to the passed-in components, this method does nothing.
void UpdateRecurrenceIfNecessary()
{
var timerTrigger = TimerTrigger;
if (timerTrigger == null || timerTrigger.Recurrence == RecurrenceComponents)
{
return;
}
SaveTriggerGroup.Enter();
timerTrigger.UpdateRecurrence(RecurrenceComponents, error => {
if (error != null)
{
Errors.Add(error);
}
SaveTriggerGroup.Leave();
});
}
// Updates the trigger's fire date, entering and leaving the dispatch group if necessary.
// If the trigger's fire date is already equal to the passed-in fire date, this method does nothing.
void UpdateFireDateIfNecessary()
{
var timerTrigger = TimerTrigger;
if (timerTrigger == null || timerTrigger.FireDate == FireDate)
{
return;
}
SaveTriggerGroup.Enter();
timerTrigger.UpdateFireDate(FireDate, error => {
if (error != null)
{
Errors.Add(error);
}
SaveTriggerGroup.Leave();
});
}
// Updates the trigger's name from the stored name, entering and leaving the dispatch group if necessary.
void UpdateNameIfNecessary()
{
var trigger = Trigger;
if (trigger == null && trigger.Name == Name)
{
return;
}
SaveTriggerGroup.Enter();
trigger.UpdateName(Name, error => {
if (error != null)
{
errors.Add(error);
}
SaveTriggerGroup.Leave();
});
}
// Syncs the trigger's action sets with the specified array of action sets.
void ConfigureWithActionSets(IEnumerable <HMActionSet> actionSets)
{
var trigger = Trigger;
if (trigger == null)
{
return;
}
// Save a standard completion handler to use when we either add or remove an action set.
Action <NSError> defaultCompletion = error => {
// Leave the dispatch group, to notify that we've finished this task.
if (error != null)
{
errors.Add(error);
}
SaveTriggerGroup.Leave();
};
// First pass, remove the action sets that have been deselected.
foreach (var actionSet in trigger.ActionSets)
{
if (actionSets.Contains(actionSet))
{
continue;
}
SaveTriggerGroup.Enter();
trigger.RemoveActionSet(actionSet, defaultCompletion);
}
// Second pass, add the new action sets that were just selected.
foreach (var actionSet in actionSets)
{
if (trigger.ActionSets.Contains(actionSet))
{
continue;
}
SaveTriggerGroup.Enter();
trigger.AddActionSet(actionSet, defaultCompletion);
}
}
// Removes all `HMCharacteristicEvent`s from the `removalCharacteristicEvents`
// array and stores any errors that accumulate.
void RemovePendingEventsFromTrigger()
{
var eventTrigger = EventTrigger;
if (eventTrigger == null)
{
return;
}
foreach (var e in removalCharacteristicEvents)
{
SaveTriggerGroup.Enter();
eventTrigger.RemoveEvent(e, error => {
if (error != null)
{
Errors.Add(error);
}
SaveTriggerGroup.Leave();
});
}
removalCharacteristicEvents.Clear();
}
protected override void UpdateTrigger()
{
var region = TargetRegion;
if (region != null)
{
PrepareRegion();
var locationEvent = LocationEvent;
if (locationEvent != null)
{
SaveTriggerGroup.Enter();
locationEvent.UpdateRegion(region, error => {
if (error != null)
{
Errors.Add(error);
}
SaveTriggerGroup.Leave();
});
}
}
SavePredicate();
}