Add profile expiration alert

Author: ps2

Common/Extensions/NSTimeInterval.swift

@@ -18,9 +18,14 @@ extension TimeInterval {
         return TimeInterval(minutes: minutes)
     }
 
+
     static func hours(_ hours: Double) -> TimeInterval {
         return TimeInterval(hours: hours)
     }
+    
+    static func days(_ days: Double) -> TimeInterval {
+        return TimeInterval(days: days)
+    }
 
     init(minutes: Double) {
         self.init(minutes * 60)
@@ -30,6 +35,10 @@ extension TimeInterval {
         self.init(minutes: hours * 60)
     }
 
+    init(days: Double) {
+        self.init(hours: days * 24)
+    }
+
     var minutes: Double {
         return self / 60.0
     }

Loop.xcodeproj/project.pbxproj

@@ -376,6 +376,7 @@
 		C17824A61E1AF91F00D9D25C /* ManualBolusRecommendation.swift in Sources */ = {isa = PBXBuildFile; fileRef = C17824A41E1AD4D100D9D25C /* ManualBolusRecommendation.swift */; };
 		C1814B86225E507C008D2D8E /* Sequence.swift in Sources */ = {isa = PBXBuildFile; fileRef = C1814B85225E507C008D2D8E /* Sequence.swift */; };
 		C18C8C511D5A351900E043FB /* NightscoutDataManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = C18C8C501D5A351900E043FB /* NightscoutDataManager.swift */; };
+		C19D65FE26D13F43003BBDE0 /* ProfileExpirationAlerter.swift in Sources */ = {isa = PBXBuildFile; fileRef = C19D65FD26D13F43003BBDE0 /* ProfileExpirationAlerter.swift */; };
 		C19E96DF23D275F8003F79B0 /* LoopCompletionFreshness.swift in Sources */ = {isa = PBXBuildFile; fileRef = C19E96DD23D2733F003F79B0 /* LoopCompletionFreshness.swift */; };
 		C19E96E023D275FA003F79B0 /* LoopCompletionFreshness.swift in Sources */ = {isa = PBXBuildFile; fileRef = C19E96DD23D2733F003F79B0 /* LoopCompletionFreshness.swift */; };
 		C1A3EED2235233E1007672E3 /* DerivedAssets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = C1A3EED1235233E1007672E3 /* DerivedAssets.xcassets */; };
@@ -1092,6 +1093,7 @@
 		C18A491422FCC22900FDA733 /* build-derived-watch-assets.sh */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = "build-derived-watch-assets.sh"; sourceTree = "<group>"; };
 		C18A491522FCC22900FDA733 /* copy-plugins.sh */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.script.sh; path = "copy-plugins.sh"; sourceTree = "<group>"; };
 		C18C8C501D5A351900E043FB /* NightscoutDataManager.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = NightscoutDataManager.swift; sourceTree = "<group>"; };
+		C19D65FD26D13F43003BBDE0 /* ProfileExpirationAlerter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ProfileExpirationAlerter.swift; sourceTree = "<group>"; };
 		C19E96DD23D2733F003F79B0 /* LoopCompletionFreshness.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoopCompletionFreshness.swift; sourceTree = "<group>"; };
 		C1A3EED1235233E1007672E3 /* DerivedAssets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = DerivedAssets.xcassets; sourceTree = "<group>"; };
 		C1A3EED323523551007672E3 /* DerivedAssets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = DerivedAssets.xcassets; sourceTree = "<group>"; };
@@ -1662,6 +1664,7 @@
 				89ADE13A226BFA0F0067222B /* TestingScenariosManager.swift */,
 				4328E0341CFC0AE100E199AA /* WatchDataManager.swift */,
 				E9BB27AA23B85C3500FB4987 /* SleepStore.swift */,
+				C19D65FD26D13F43003BBDE0 /* ProfileExpirationAlerter.swift */,
 			);
 			path = Managers;
 			sourceTree = "<group>";
@@ -2623,6 +2626,7 @@
 				C1FB428F217921D600FAB378 /* PumpManagerUI.swift in Sources */,
 				43C513191E864C4E001547C7 /* GlucoseRangeSchedule.swift in Sources */,
 				43A51E1F1EB6D62A000736CC /* CarbAbsorptionViewController.swift in Sources */,
+				C19D65FE26D13F43003BBDE0 /* ProfileExpirationAlerter.swift in Sources */,
 				43776F901B8022E90074EA36 /* AppDelegate.swift in Sources */,
 				4372E48B213CB5F00068E043 /* Double.swift in Sources */,
 				430B29932041F5B300BA9F93 /* UserDefaults+Loop.swift in Sources */,

Loop/AppDelegate.swift

@@ -93,6 +93,7 @@ final class AppDelegate: UIResponder, UIApplicationDelegate {
     }
 
     func applicationDidBecomeActive(_ application: UIApplication) {
+        ProfileExpirationAlerter.alertIfNeeded(viewControllerToPresentFrom: rootViewController)
         deviceManager?.updatePumpManagerBLEHeartbeatPreference()
     }
 

Loop/Managers/ProfileExpirationAlerter.swift

@@ -0,0 +1,55 @@
+//
+//  ProfileExpirationAlerter.swift
+//  Loop
+//
+//  Created by Pete Schwamb on 8/21/21.
+//  Copyright © 2021 LoopKit Authors. All rights reserved.
+//
+
+import Foundation
+import UserNotifications
+import LoopCore
+
+
+class ProfileExpirationAlerter {
+    
+    static let expirationAlertWindow: TimeInterval = .days(20)
+
+    static func alertIfNeeded(viewControllerToPresentFrom: UIViewController) {
+        
+        let now = Date()
+        
+        guard let profileExpiration = Bundle.main.profileExpiration, now > profileExpiration - expirationAlertWindow else {
+            return
+        }
+        
+        let timeUntilExpiration = profileExpiration.timeIntervalSince(now)
+        
+        let minimumTimeBetweenAlerts: TimeInterval = timeUntilExpiration > .hours(24) ? .days(2) : .hours(1)
+        
+        if let lastAlert = UserDefaults.appGroup?.lastProfileExpirationAlertDate {
+            guard now > lastAlert + minimumTimeBetweenAlerts else {
+                return
+            }
+        }
+        
+        let formatter = DateComponentsFormatter()
+        formatter.allowedUnits = [.day, .hour]
+        formatter.unitsStyle = .full
+        formatter.zeroFormattingBehavior = .dropLeading
+        formatter.maximumUnitCount = 1
+        let timeUntilExpirationStr = formatter.string(from: timeUntilExpiration)
+
+        let dialog = UIAlertController(
+            title: NSLocalizedString("Profile Expires Soon", comment: "The title for notification of near profile expiration"),
+            message: String(format: NSLocalizedString("Loop will stop working in %@. You will need to update Loop before that, with a new profile.", comment: "Format string for body for notification of near profile expiration. (1: amount of time until expiration"), timeUntilExpirationStr!),
+            preferredStyle: .alert)
+        dialog.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
+        dialog.addAction(UIAlertAction(title: "More Info", style: .default, handler: { (_) in
+            UIApplication.shared.open(URL(string: "https://loopkit.github.io/loopdocs/build/updating/")!)
+        }))
+        viewControllerToPresentFrom.present(dialog, animated: true, completion: nil)
+        
+        UserDefaults.appGroup?.lastProfileExpirationAlertDate = now
+    }
+}

LoopCore/NSUserDefaults.swift

@@ -22,6 +22,7 @@ extension UserDefaults {
         case overrideHistory = "com.tidepool.loopkit.overrideHistory"
         case lastBedtimeQuery = "com.loopkit.Loop.lastBedtimeQuery"
         case bedtime = "com.loopkit.Loop.bedtime"
+        case lastProfileExpirationAlertDate = "com.loopkit.Loop.lastProfileExpirationAlertDate"
     }
 
     public static let appGroup = UserDefaults(suiteName: Bundle.main.appGroupSuiteName)
@@ -179,4 +180,18 @@ extension UserDefaults {
             set(newValue, forKey: Key.bedtime.rawValue)
         }
     }
+    
+    public var lastProfileExpirationAlertDate: Date? {
+        get {
+            if let rawValue = object(forKey: Key.lastProfileExpirationAlertDate.rawValue) as? Date {
+                return rawValue
+            } else {
+                return nil
+            }
+        }
+        set {
+            set(newValue, forKey: Key.lastProfileExpirationAlertDate.rawValue)
+        }
+    }
+
 }