mirror of
git://jb55.com/damus
synced 2024-09-29 08:20:45 +00:00
bfad2ab42d
Since there may be situations where we close and re-open the database,
we need to make sure transactions fail when the database is not open.
Make NdbTxn an init?() constructor and check for ndb.closed. If it's
closed, then fail transaction construction.
This fixes crashes during high database activity when switching from
background to foreground and vice-versa.
Fixes: da2bdad18d ("nostrdb: close database when backgrounded")
71 lines
2.9 KiB
Swift
71 lines
2.9 KiB
Swift
//
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// NotificationService.swift
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// DamusNotificationService
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//
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// Created by Daniel D’Aquino on 2023-11-10.
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//
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import UserNotifications
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import Foundation
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class NotificationService: UNNotificationServiceExtension {
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var contentHandler: ((UNNotificationContent) -> Void)?
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var bestAttemptContent: UNMutableNotificationContent?
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override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
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self.contentHandler = contentHandler
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guard let nostr_event_json = request.content.userInfo["nostr_event"] as? String,
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let nostr_event = NdbNote.owned_from_json(json: nostr_event_json)
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else {
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// No nostr event detected. Just display the original notification
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contentHandler(request.content)
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return;
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}
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// Log that we got a push notification
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Log.debug("Got nostr event push notification from pubkey %s", for: .push_notifications, nostr_event.pubkey.hex())
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guard let state = NotificationExtensionState(),
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let display_name = state.ndb.lookup_profile(nostr_event.pubkey)?.unsafeUnownedValue?.profile?.display_name // We are not holding the txn here.
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else {
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// Something failed to initialize so let's go for the next best thing
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guard let improved_content = NotificationFormatter.shared.format_message(event: nostr_event) else {
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// We cannot format this nostr event. Suppress notification.
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contentHandler(UNNotificationContent())
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return
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}
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contentHandler(improved_content)
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return
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}
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guard should_display_notification(state: state, event: nostr_event) else {
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// We should not display notification for this event. Suppress notification.
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contentHandler(UNNotificationContent())
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return
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}
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guard let notification_object = generate_local_notification_object(from: nostr_event, state: state) else {
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// We could not process this notification. Probably an unsupported nostr event kind. Suppress.
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contentHandler(UNNotificationContent())
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return
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}
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Task {
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if let (improvedContent, _) = await NotificationFormatter.shared.format_message(displayName: display_name, notify: notification_object, state: state) {
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contentHandler(improvedContent)
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}
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}
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}
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override func serviceExtensionTimeWillExpire() {
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// Called just before the extension will be terminated by the system.
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// Use this as an opportunity to deliver your "best attempt" at modified content, otherwise the original push payload will be used.
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if let contentHandler = contentHandler, let bestAttemptContent = bestAttemptContent {
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contentHandler(bestAttemptContent)
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}
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}
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}
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