feat: Log notification fetch fail

MailNotificationServiceExtension/NotificationService+Sentry.swift

@@ -0,0 +1,38 @@
+/*
+ Infomaniak Mail - iOS App
+ Copyright (C) 2022 Infomaniak Network SA
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import Foundation
+import Sentry
+
+extension NotificationService {
+    enum NotificationFailedType: String {
+        case expired
+        case messageNotFound
+        case mailboxNotFound
+    }
+
+    func logNotificationFailed(userInfo: [AnyHashable: Any], type: NotificationFailedType) {
+        SentrySDK.capture(message: "Notification transformation failed") { scope in
+            scope.setContext(value: [
+                "NotificationFailedType": type.rawValue,
+                "User infos": userInfo
+            ],
+            key: "Notification informations")
+        }
+    }
+}

MailNotificationServiceExtension/NotificationService.swift

@@ -94,13 +94,15 @@ class NotificationService: UNNotificationServiceExtension {
                   let mailbox = MailboxInfosManager.instance.getMailbox(id: mailboxId, userId: userId),
                   let mailboxManager = AccountManager.instance.getMailboxManager(for: mailbox) else {
                 // This should never happen, we received a notification for an unknown mailbox
+                logNotificationFailed(userInfo: userInfos, type: .mailboxNotFound)
                 return contentHandler(bestAttemptContent)
             }
 
             // Prepare a notification in case we can't fetch the message in time / the message doesn't exist anymore
             prepareEmptyMessageNotification(in: mailbox)
             guard let messageUid = userInfos[NotificationsHelper.UserInfoKeys.messageUid] as? String,
-                  let fetchedMessage = try await fetchMessage(uid: messageUid, in: mailboxManager) else {
+                  let fetchedMessage = try? await fetchMessage(uid: messageUid, in: mailboxManager) else {
+                logNotificationFailed(userInfo: userInfos, type: .messageNotFound)
                 return contentHandler(bestAttemptContent)
             }
 
@@ -113,6 +115,7 @@ class NotificationService: UNNotificationServiceExtension {
 
     override func serviceExtensionTimeWillExpire() {
         if let contentHandler, let bestAttemptContent {
+            logNotificationFailed(userInfo: bestAttemptContent.userInfo, type: .expired)
             contentHandler(bestAttemptContent)
         }
     }