use absence of g5 transmitter to indicate share-only setup.

Author: ps2

Loop/Extensions/NSUserDefaults.swift

@@ -88,7 +88,7 @@ extension UserDefaults {
                     return .g5(transmitterID: transmitterID)
                 }
 
-                return .share
+                return nil
             }
         }
         set {

Loop/Managers/CGM/DexCGMManager.swift

@@ -108,18 +108,20 @@ final class ShareClientManager: CGMManager {
 
 
 final class G5CGMManager: DexCGMManager, TransmitterDelegate {
-    private let transmitter: Transmitter
+    private let transmitter: Transmitter?
 
-    init?(transmitterID: String?) {
-        guard let transmitterID = transmitterID else {
-            return nil
+    init(transmitterID: String?) {
+        if let transmitterID = transmitterID {
+            self.transmitter = Transmitter(ID: transmitterID, passiveModeEnabled: true)
+        } else {
+            self.transmitter = nil
         }
 
-        self.transmitter = Transmitter(ID: transmitterID, passiveModeEnabled: true)
-
         super.init()
 
-        self.transmitter.delegate = self
+        self.providesBLEHeartbeat = self.transmitter != nil
+
+        self.transmitter?.delegate = self
     }
 
     override var sensorState: SensorDisplayable? {
@@ -150,7 +152,7 @@ final class G5CGMManager: DexCGMManager, TransmitterDelegate {
         return [
             "## G5CGMManager",
             "latestReading: \(String(describing: latestReading))",
-            "transmitter: \(transmitter)",
+            "transmitter: \(String(describing: transmitter))",
             super.debugDescription,
             ""
         ].joined(separator: "\n")

Loop/Models/CGM.swift

@@ -12,11 +12,10 @@ enum CGM {
     case g5(transmitterID: String?)
     case g4
     case enlite
-    case share
 
     var appURL: URL? {
         switch self {
-        case .g4, .share:
+        case .g4:
             return URL(string: "dexcomshare://")
         case .g5:
             return URL(string: "dexcomcgm://")
@@ -33,8 +32,6 @@ enum CGM {
             return G4CGMManager()
         case .g5(let transmitterID):
             return G5CGMManager(transmitterID: transmitterID)
-        case .share:
-            return ShareClientManager()
         }
     }
 }
@@ -60,8 +57,6 @@ extension CGM: RawRepresentable {
             self = .g4
         case .enlite?:
             self = .enlite
-        case .share?:
-            self = .share
         case .none:
             return nil
         }
@@ -71,15 +66,13 @@ extension CGM: RawRepresentable {
         case g5
         case g4
         case enlite
-        case share
     }
 
     private var type: CGMType {
         switch self {
         case .g5: return .g5
         case .g4: return .g4
         case .enlite: return .enlite
-        case .share: return .share
         }
     }
 

Loop/View Controllers/SettingsTableViewController.swift

@@ -687,7 +687,7 @@ final class SettingsTableViewController: UITableViewController, DailyValueSchedu
             tableView.insertRows(at: [IndexPath(row: CGMRow.g5TransmitterID.rawValue, section:Section.cgm.rawValue)], with: .top)
         } else {
             removeG5TransmitterIDRow()
-            dataManager.cgm = .share
+            dataManager.cgm = nil
         }
         tableView.endUpdates()
     }
@@ -699,7 +699,7 @@ final class SettingsTableViewController: UITableViewController, DailyValueSchedu
             setEnliteSwitchOff()
             dataManager.cgm = .g4
         } else {
-            dataManager.cgm = .share
+            dataManager.cgm = nil
         }
         tableView.endUpdates()
     }
@@ -711,7 +711,7 @@ final class SettingsTableViewController: UITableViewController, DailyValueSchedu
             setG4SwitchOff()
             dataManager.cgm = .enlite
         } else {
-            dataManager.cgm = .share
+            dataManager.cgm = nil
         }
         tableView.endUpdates()
     }