COVIDSafe code from version 1.1

CovidSafe/BluetraceManager.swift

@@ -0,0 +1,56 @@
+import UIKit
+import CoreData
+import CoreBluetooth
+
+class BluetraceManager {
+    private var peripheralController: PeripheralController!
+    private var centralController: CentralController!
+    var queue: DispatchQueue!
+    var bluetoothDidUpdateStateCallback: ((CBManagerState) -> Void)?
+    
+    static let shared = BluetraceManager()
+    
+    private init() {
+        queue = DispatchQueue(label: "BluetraceManager")
+        peripheralController = PeripheralController(peripheralName: "TR", queue: queue)
+        centralController = CentralController(queue: queue)
+        centralController.centralDidUpdateStateCallback = centralDidUpdateStateCallback
+    }
+    
+    func turnOn() {
+        peripheralController.turnOn()
+        centralController.turnOn()
+    }
+    
+    func isBluetoothAuthorized() -> Bool {
+        if #available(iOS 13.1, *) {
+            return CBManager.authorization == .allowedAlways
+        } else {
+            return CBPeripheralManager.authorizationStatus() == .authorized
+        }
+    }
+    
+    func isBluetoothOn() -> Bool {
+        return centralController.getState() == .poweredOn
+    }
+    
+    func centralDidUpdateStateCallback(_ state: CBManagerState) {
+        bluetoothDidUpdateStateCallback?(state)
+    }
+    
+    func toggleAdvertisement(_ state: Bool) {
+        if state {
+            peripheralController.turnOn()
+        } else {
+            peripheralController.turnOff()
+        }
+    }
+    
+    func toggleScanning(_ state: Bool) {
+        if state {
+            centralController.turnOn()
+        } else {
+            centralController.turnOff()
+        }
+    }
+}