Sync pump time automatically (LoopKit#721)

* Sync pump time automatically
* Automatically set pump time if off by 20 seconds or more
* Ensure LoopStateView is up-to-date even when the app is running in the background

* Add didChangeGlucoseTargetRangeSchedule to analytics manager

Common/Extensions/NSTimeInterval.swift

@@ -10,6 +10,10 @@ import Foundation
 
 
 extension TimeInterval {
+    static func seconds(_ seconds: Double) -> TimeInterval {
+        return seconds
+    }
+
     static func minutes(_ minutes: Double) -> TimeInterval {
         return TimeInterval(minutes: minutes)
     }

Loop/Managers/AnalyticsManager.swift

@@ -62,19 +62,27 @@ final class AnalyticsManager: IdentifiableClass {
     // MARK: - Config Events
 
     func didChangeRileyLinkConnectionState() {
-        logEvent("RileyLink Connection")
+        logEvent("RileyLink Connection", outOfSession: true)
     }
 
     func transmitterTimeDidDrift(_ drift: TimeInterval) {
-        logEvent("Transmitter time change", withProperties: ["value" : drift])
+        logEvent("Transmitter time change", withProperties: ["value" : drift], outOfSession: true)
+    }
+
+    func pumpTimeDidDrift(_ drift: TimeInterval) {
+        logEvent("Pump time change", withProperties: ["value": drift], outOfSession: true)
+    }
+
+    func punpTimeZoneDidChange() {
+        logEvent("Pump time zone change", outOfSession: true)
     }
 
     func pumpBatteryWasReplaced() {
-        logEvent("Pump battery replacement")
+        logEvent("Pump battery replacement", outOfSession: true)
     }
 
     func reservoirWasRewound() {
-        logEvent("Pump reservoir rewind")
+        logEvent("Pump reservoir rewind", outOfSession: true)
     }
 
     func didChangeBasalRateSchedule() {
@@ -98,7 +106,7 @@ final class AnalyticsManager: IdentifiableClass {
     }
 
     func didChangeLoopSettings(from oldValue: LoopSettings, to newValue: LoopSettings) {
-        logEvent("Loop settings change")
+        logEvent("Loop settings change", outOfSession: true)
 
         if newValue.maximumBasalRatePerHour != oldValue.maximumBasalRatePerHour {
             logEvent("Maximum basal rate change")
@@ -111,6 +119,14 @@ final class AnalyticsManager: IdentifiableClass {
         if newValue.suspendThreshold != oldValue.suspendThreshold {
             logEvent("Minimum BG Guard change")
         }
+
+        if newValue.dosingEnabled != oldValue.dosingEnabled {
+            logEvent("Closed loop enabled change")
+        }
+
+        if newValue.retrospectiveCorrectionEnabled != oldValue.retrospectiveCorrectionEnabled {
+            logEvent("Retrospective correction enabled change")
+        }
     }
 
     // MARK: - Loop Events
@@ -127,6 +143,10 @@ final class AnalyticsManager: IdentifiableClass {
         logEvent("Bolus set", withProperties: ["source" : "Watch"], outOfSession: true)
     }
 
+    func didFetchNewCGMData() {
+        logEvent("CGM Fetch", outOfSession: true)
+    }
+
     func loopDidSucceed() {
         logEvent("Loop success", outOfSession: true)
     }

Loop/Managers/DeviceDataManager.swift

@@ -154,6 +154,10 @@ final class DeviceDataManager {
             self.lastTimerTick = Date()
 
             self.cgmManager?.fetchNewDataIfNeeded(with: self) { (result) in
+                if case .newData = result {
+                    AnalyticsManager.shared.didFetchNewCGMData()
+                }
+
                 // TODO: Isolate to queue?
                 self.cgmManager(self.cgmManager!, didUpdateWith: result)
             }
@@ -487,6 +491,16 @@ final class DeviceDataManager {
                         return
                     }
 
+                    // Check if the clock should be reset
+                    if abs(date.timeIntervalSinceNow) > .seconds(20) {
+                        self.logger.addError("Pump clock is more than 20 seconds off. Resetting.", fromSource: "RileyLink")
+                        AnalyticsManager.shared.pumpTimeDidDrift(date.timeIntervalSinceNow)
+                        try session.setTime { () -> DateComponents in
+                            let calendar = Calendar(identifier: .gregorian)
+                            return calendar.dateComponents([.year, .month, .day, .hour, .minute, .second], from: Date())
+                        }
+                    }
+
                     self.observeBatteryDuring {
                         self.latestPumpStatus = status
                     }
@@ -840,18 +854,6 @@ extension DeviceDataManager: LoopDataManagerDelegate {
             return
         }
 
-        let notify = { (result: Result<DoseEntry>) -> Void in
-            // If we haven't fetched history in a while (preferredInsulinDataSource == .reservoir),
-            // let's try to do so while the pump radio is on.
-            if self.loopManager.doseStore.lastAddedPumpEvents.timeIntervalSinceNow < .minutes(-4) {
-                self.fetchPumpHistory { (_) in
-                    completion(result)
-                }
-            } else {
-                completion(result)
-            }
-        }
-
         pumpOps.runSession(withName: "Set Temp Basal", using: rileyLinkManager.firstConnectedDevice) { (session) in
             guard let session = session else {
                 completion(.failure(LoopError.connectionError))
@@ -864,15 +866,43 @@ extension DeviceDataManager: LoopDataManagerDelegate {
                 let now = Date()
                 let endDate = now.addingTimeInterval(response.timeRemaining)
                 let startDate = endDate.addingTimeInterval(-basal.recommendation.duration)
-                notify(.success(DoseEntry(
+                completion(.success(DoseEntry(
                     type: .tempBasal,
                     startDate: startDate,
                     endDate: endDate,
                     value: response.rate,
                     unit: .unitsPerHour
                 )))
+
+                // Continue below
+            } catch let error {
+                completion(.failure(error))
+                return
+            }
+
+            do {
+                // If we haven't fetched history in a while, our preferredInsulinDataSource is probably .reservoir, so
+                // let's take advantage of the pump radio being on.
+                if self.loopManager.doseStore.lastAddedPumpEvents.timeIntervalSinceNow < .minutes(-4) {
+                    let clock = try session.getTime()
+                    // Check if the clock should be reset
+                    if let date = clock.date, abs(date.timeIntervalSinceNow) > .seconds(20) {
+                        self.logger.addError("Pump clock is more than 20 seconds off. Resetting.", fromSource: "RileyLink")
+                        AnalyticsManager.shared.pumpTimeDidDrift(date.timeIntervalSinceNow)
+                        try session.setTime { () -> DateComponents in
+                            let calendar = Calendar(identifier: .gregorian)
+                            return calendar.dateComponents([.year, .month, .day, .hour, .minute, .second], from: Date())
+                        }
+                    }
+
+                    self.fetchPumpHistory { (error) in
+                        if let error = error {
+                            self.logger.addError("Post-basal history fetch failed: \(error)", fromSource: "RileyLink")
+                        }
+                    }
+                }
             } catch let error {
-                notify(.failure(error))
+                self.logger.addError("Post-basal time sync failed: \(error)", fromSource: "RileyLink")
             }
         }
     }

Loop/Managers/LoopDataManager.swift

@@ -24,6 +24,7 @@ final class LoopDataManager {
     }
 
     static let LoopUpdateContextKey = "com.loudnate.Loop.LoopDataManager.LoopUpdateContext"
+    static let LastLoopCompletedKey = "com.loopkit.Loop.LoopDataManager.LastLoopCompleted"
 
     fileprivate typealias GlucoseChange = (start: GlucoseValue, end: GlucoseValue)
 
@@ -134,13 +135,6 @@ final class LoopDataManager {
         }
     }
 
-    /// Disable any active workout glucose targets
-    func disableWorkoutMode() {
-        settings.glucoseTargetRangeSchedule?.clearOverride()
-
-        notify(forChange: .preferences)
-    }
-
     /// The length of time insulin has an effect on blood glucose
     var insulinModelSettings: InsulinModelSettings? {
         get {
@@ -596,9 +590,17 @@ final class LoopDataManager {
     }
 
     private func notify(forChange context: LoopUpdateContext) {
+        var userInfo: [String: Any] = [
+            type(of: self).LoopUpdateContextKey: context.rawValue
+        ]
+
+        if let lastLoopCompleted = lastLoopCompleted {
+            userInfo[type(of: self).LastLoopCompletedKey] = lastLoopCompleted
+        }
+
         NotificationCenter.default.post(name: .LoopDataUpdated,
             object: self,
-            userInfo: [type(of: self).LoopUpdateContextKey: context.rawValue]
+            userInfo: userInfo
         )
     }
 

Loop/View Controllers/StatusTableViewController.swift

@@ -46,6 +46,7 @@ final class StatusTableViewController: ChartsTableViewController {
         notificationObservers += [
             notificationCenter.addObserver(forName: .LoopDataUpdated, object: deviceManager.loopManager, queue: nil) { [unowned self] note in
                 let context = note.userInfo?[LoopDataManager.LoopUpdateContextKey] as! LoopDataManager.LoopUpdateContext.RawValue
+                let lastLoopCompleted = note.userInfo?[LoopDataManager.LastLoopCompletedKey] as? Date
                 DispatchQueue.main.async {
                     switch LoopDataManager.LoopUpdateContext(rawValue: context) {
                     case .none, .bolus?:
@@ -58,6 +59,10 @@ final class StatusTableViewController: ChartsTableViewController {
                         self.refreshContext.formUnion([.glucose, .carbs])
                     case .tempBasal?:
                         self.refreshContext.update(with: .insulin)
+
+                        if let lastLoopCompleted = lastLoopCompleted {
+                            self.hudView?.loopCompletionHUD.lastLoopCompleted = lastLoopCompleted
+                        }
                     }
 
                     self.hudView?.loopCompletionHUD.loopInProgress = false

LoopUI/Views/LoopCompletionHUDView.swift

@@ -95,7 +95,7 @@ public final class LoopCompletionHUDView: BaseHUDView {
         )
         updateTimer = timer
 
-        RunLoop.main.add(timer, forMode: RunLoopMode.defaultRunLoopMode)
+        RunLoop.main.add(timer, forMode: .defaultRunLoopMode)
     }
 
     private var updateTimer: Timer? {