Device Verification: Add a view model to DeviceVerificationDataLoadingViewController

2026-04-20 16:42:44 +02:00 · 2019-04-24 14:42:16 +02:00
parent 1bb7131db7
commit fa3ace5bcf
9 changed files with 378 additions and 74 deletions
@@ -0,0 +1,93 @@
+// File created from ScreenTemplate
+// $ createScreen.sh DeviceVerification/Loading DeviceVerificationDataLoading
+/*
+ Copyright 2019 New Vector Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+import Foundation
+
+final class DeviceVerificationDataLoadingViewModel: DeviceVerificationDataLoadingViewModelType {
+    
+    // MARK: - Properties
+    
+    // MARK: Private
+
+    private let session: MXSession
+    private let otherUserId: String
+    private let otherDeviceId: String
+    
+    // MARK: Public
+
+    weak var viewDelegate: DeviceVerificationDataLoadingViewModelViewDelegate?
+    weak var coordinatorDelegate: DeviceVerificationDataLoadingViewModelCoordinatorDelegate?
+    
+    // MARK: - Setup
+    
+    init(session: MXSession, otherUserId: String, otherDeviceId: String) {
+        self.session = session
+        self.otherUserId = otherUserId
+        self.otherDeviceId = otherDeviceId
+
+        self.loadData()
+    }
+    
+    deinit {
+    }
+    
+    // MARK: - Public
+    
+    func process(viewAction: DeviceVerificationDataLoadingViewAction) {
+        switch viewAction {
+        case .cancel:
+            self.coordinatorDelegate?.deviceVerificationDataLoadingViewModelDidCancel(self)
+        }
+    }
+    
+    // MARK: - Private
+
+    private func loadData() {
+        self.update(viewState: .loading)
+
+        if let otherUser = self.session.user(withUserId: otherUserId) {
+            self.session.crypto?.downloadKeys([self.otherUserId], forceDownload: false, success: { [weak self] (usersDevicesMap) in
+                guard let sself = self else {
+                    return
+                }
+
+                sself.update(viewState: .loaded)
+
+                if let otherDevice = usersDevicesMap?.object(forDevice: sself.otherDeviceId, forUser: sself.otherUserId) {
+                    sself.coordinatorDelegate?.deviceVerificationDataLoadingViewModel(sself, didLoadUser: otherUser, device: otherDevice)
+                } else {
+                     sself.update(viewState: .errorMessage(VectorL10n.deviceVerificationErrorCannotLoadDevice))
+                }
+
+                }, failure: { [weak self] (error) in
+                    guard let sself = self, let error = error else {
+                        return
+                    }
+
+                    sself.update(viewState: .error(error))
+            })
+
+        } else {
+            self.update(viewState: .errorMessage(VectorL10n.deviceVerificationErrorCannotLoadDevice))
+        }
+    }
+    
+    private func update(viewState: DeviceVerificationDataLoadingViewState) {
+        self.viewDelegate?.deviceVerificationDataLoadingViewModel(self, didUpdateViewState: viewState)
+    }
+}