Initial commit

OpenHaystack/OpenHaystack/HaystackApp/AccessoryController.swift

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+//  OpenHaystack – Tracking personal Bluetooth devices via Apple's Find My network
+//
+//  Copyright © 2021 Secure Mobile Networking Lab (SEEMOO)
+//  Copyright © 2021 The Open Wireless Link Project
+//
+//  SPDX-License-Identifier: AGPL-3.0-only
+
+import Foundation
+
+class AccessoryController: ObservableObject {
+    static let shared = AccessoryController()
+
+    @Published var accessories: [Accessory]
+
+    init() {
+        self.accessories = KeychainController.loadAccessoriesFromKeychain()
+    }
+
+    init(accessories: [Accessory]) {
+        self.accessories = accessories
+    }
+
+    func save() throws {
+        try KeychainController.storeInKeychain(accessories: self.accessories)
+    }
+
+    func load() {
+        self.accessories = KeychainController.loadAccessoriesFromKeychain()
+    }
+
+    func updateWithDecryptedReports(devices: [FindMyDevice]) {
+        // Assign last locations
+        for device in FindMyController.shared.devices {
+            if let idx = self.accessories.firstIndex(where: {$0.id == Int(device.deviceId)}) {
+                self.objectWillChange.send()
+                let accessory = self.accessories[idx]
+
+                let report = device.decryptedReports?
+                    .sorted(by: {$0.timestamp ?? Date.distantPast > $1.timestamp  ?? Date.distantPast })
+                    .first
+
+                accessory.lastLocation = report?.location
+                accessory.locationTimestamp = report?.timestamp
+
+                self.accessories[idx] = accessory
+            }
+        }
+    }
+}