Add more tracing for notifications missing statuses

See #274

Tusker/Screens/Notifications/NotificationsTableViewController.swift

@@ -8,6 +8,7 @@
 
 import UIKit
 import Pachyderm
+import Sentry
 
 class NotificationsTableViewController: DiffableTimelineLikeTableViewController<NotificationsTableViewController.Section, NotificationsTableViewController.Item> {
 
@@ -71,7 +72,18 @@ class NotificationsTableViewController: DiffableTimelineLikeTableViewController<
                 fatalError()
             }
             cell.delegate = self
-            cell.updateUI(statusID: notification.status!.id, state: group.statusState!)
+            guard let status = notification.status else {
+                let crumb = Breadcrumb(level: .fatal, category: "notifications")
+                crumb.data = [
+                    "id": notification.id,
+                    "type": notification.kind.rawValue,
+                    "created_at": notification.createdAt.formatted(.iso8601),
+                    "account": notification.account.id,
+                ]
+                SentrySDK.addBreadcrumb(crumb: crumb)
+                fatalError("missing status for mention notification")
+            }
+            cell.updateUI(statusID: status.id, state: group.statusState!)
             return cell
             
         case .favourite, .reblog:
@@ -114,6 +126,19 @@ class NotificationsTableViewController: DiffableTimelineLikeTableViewController<
         }
     }
     
+    private func validateNotifications(_ notifications: [Pachyderm.Notification]) {
+        for notif in notifications where notif.status == nil && (notif.kind == .mention || notif.kind == .reblog || notif.kind == .favourite) {
+            let crumb = Breadcrumb(level: .fatal, category: "notifications")
+            crumb.data = [
+                "id": notif.id,
+                "type": notif.kind.rawValue,
+                "created_at": notif.createdAt.formatted(.iso8601),
+                "account": notif.account.id,
+            ]
+            SentrySDK.addBreadcrumb(crumb: crumb)
+        }
+    }
+    
     override func loadInitialItems(completion: @escaping (LoadResult) -> Void) {
         let request = Client.getNotifications(excludeTypes: excludedTypes)
         mastodonController.run(request) { (response) in
@@ -122,6 +147,7 @@ class NotificationsTableViewController: DiffableTimelineLikeTableViewController<
                 completion(.failure(.client(error)))
                 
             case let .success(notifications, _):
+                self.validateNotifications(notifications)
                 let groups = NotificationGroup.createGroups(notifications: notifications, only: self.groupTypes)
                 
                 if !notifications.isEmpty {
@@ -152,6 +178,7 @@ class NotificationsTableViewController: DiffableTimelineLikeTableViewController<
                 completion(.failure(.client(error)))
                 
             case let .success(newNotifications, _):
+                self.validateNotifications(newNotifications)
                 if !newNotifications.isEmpty {
                     self.older = .before(id: newNotifications.last!.id, count: nil)
                 }
@@ -183,6 +210,7 @@ class NotificationsTableViewController: DiffableTimelineLikeTableViewController<
                 completion(.failure(.client(error)))
                 
             case let .success(newNotifications, _):
+                self.validateNotifications(newNotifications)
                 guard !newNotifications.isEmpty else {
                     completion(.failure(.allCaughtUp))
                     return

Tusker/Views/Notifications/ActionNotificationGroupTableViewCell.swift

@@ -9,6 +9,7 @@
 import UIKit
 import Pachyderm
 import SwiftSoup
+import Sentry
 
 class ActionNotificationGroupTableViewCell: UITableViewCell {
 
@@ -66,7 +67,17 @@ class ActionNotificationGroupTableViewCell: UITableViewCell {
         self.group = group
         
         guard let firstNotification = group.notifications.first else { fatalError() }
-        let status = firstNotification.status!
+        guard let status = firstNotification.status else {
+            let crumb = Breadcrumb(level: .fatal, category: "notifications")
+            crumb.data = [
+                "id": firstNotification.id,
+                "type": firstNotification.kind.rawValue,
+                "created_at": firstNotification.createdAt.formatted(.iso8601),
+                "account": firstNotification.account.id,
+            ]
+            SentrySDK.addBreadcrumb(crumb: crumb)
+            fatalError("missing status for favorite/reblog notification")
+        }
         self.statusID = status.id
         
         updateUIForPreferences()