metatext/Notification Service Extension/NotificationService.swift
2021-02-22 15:59:33 -08:00

98 lines
3.7 KiB
Swift

// Copyright © 2020 Metabolist. All rights reserved.
import Mastodon
import SDWebImage
import ServiceLayer
import UserNotifications
final class NotificationService: UNNotificationServiceExtension {
override init() {
super.init()
try? ImageCacheConfiguration(environment: Self.environment).configure()
}
var contentHandler: ((UNNotificationContent) -> Void)?
var bestAttemptContent: UNMutableNotificationContent?
override func didReceive(
_ request: UNNotificationRequest,
withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
self.contentHandler = contentHandler
bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)
guard let bestAttemptContent = bestAttemptContent else { return }
let parsingService = PushNotificationParsingService(environment: Self.environment)
let decryptedJSON: Data
let identityId: Identity.Id
let pushNotification: PushNotification
do {
(decryptedJSON, identityId) = try parsingService.extractAndDecrypt(userInfo: request.content.userInfo)
pushNotification = try MastodonDecoder().decode(PushNotification.self, from: decryptedJSON)
} catch {
contentHandler(bestAttemptContent)
return
}
bestAttemptContent.userInfo[PushNotificationParsingService.pushNotificationUserInfoKey] = decryptedJSON
bestAttemptContent.title = pushNotification.title
bestAttemptContent.body = XMLUnescaper(string: pushNotification.body).unescape()
let appPreferences = AppPreferences(environment: Self.environment)
if appPreferences.notificationSounds.contains(pushNotification.notificationType) {
bestAttemptContent.sound = .default
}
if appPreferences.notificationAccountName,
let accountName = try? AllIdentitiesService(environment: Self.environment).identity(id: identityId)?.handle {
bestAttemptContent.subtitle = accountName
}
if appPreferences.notificationPictures {
Self.addImage(url: pushNotification.icon,
bestAttemptContent: bestAttemptContent,
contentHandler: contentHandler)
} else {
contentHandler(bestAttemptContent)
}
}
override func serviceExtensionTimeWillExpire() {
if let contentHandler = contentHandler, let bestAttemptContent = bestAttemptContent {
contentHandler(bestAttemptContent)
}
}
}
private extension NotificationService {
private static let environment = AppEnvironment.live(
userNotificationCenter: .current(),
reduceMotion: { false })
static func addImage(url: URL,
bestAttemptContent: UNMutableNotificationContent,
contentHandler: @escaping (UNNotificationContent) -> Void) {
let fileName = url.lastPathComponent
let fileURL = URL(fileURLWithPath: NSTemporaryDirectory(), isDirectory: true)
.appendingPathComponent(fileName)
SDWebImageManager.shared.loadImage(with: url, options: [], progress: nil) { _, data, _, _, _, _ in
if let data = data {
do {
try data.write(to: fileURL)
bestAttemptContent.attachments =
[try UNNotificationAttachment(identifier: fileName, url: fileURL)]
contentHandler(bestAttemptContent)
} catch {
contentHandler(bestAttemptContent)
}
} else {
contentHandler(bestAttemptContent)
}
}
}
}