iOS/Sources/Extensions/Watch/ExtensionDelegate.swift

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import ClockKit
import Communicator
import PromiseKit
import Shared
import UserNotifications
import WatchKit
import XCGLogger
class ExtensionDelegate: NSObject, WKExtensionDelegate {
// MARK: Fileprivate
fileprivate var watchConnectivityBackgroundPromise: Guarantee<Void>
fileprivate var watchConnectivityBackgroundSeal: (()) -> Void
fileprivate var watchConnectivityWatchdogTimer: Timer?
private var immediateCommunicatorService: ImmediateCommunicatorService?
override init() {
(self.watchConnectivityBackgroundPromise, self.watchConnectivityBackgroundSeal) = Guarantee<Void>.pending()
super.init()
}
// MARK: - WKExtensionDelegate -
func applicationDidFinishLaunching() {
// Perform any final initialization of your application.
Current.Log.verbose("didFinishLaunching")
UNUserNotificationCenter.current().delegate = self
let options: UNAuthorizationOptions = [.alert, .badge, .sound, .criticalAlert, .providesAppNotificationSettings]
WKExtension.shared().registerForRemoteNotifications()
UNUserNotificationCenter.current().requestAuthorization(options: options) { granted, error in
Current.Log.verbose("Requested notifications access \(granted), \(String(describing: error))")
}
setupWatchCommunicator()
// schedule the next background refresh
Current.backgroundRefreshScheduler.schedule().cauterize()
}
func applicationDidBecomeActive() {
// Restart any tasks that were paused (or not yet started) while the application was inactive.
// If the application was previously in the background, optionally refresh the user interface.
Current.Log.verbose("didBecomeActive")
_ = HomeAssistantAPI.SyncWatchContext()
}
func applicationWillResignActive() {
// Sent when the application is about to move from active to inactive state.
// This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message)
// or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, etc.
Current.Log.verbose("willResignActive")
_ = HomeAssistantAPI.SyncWatchContext()
Current.backgroundRefreshScheduler.schedule().cauterize()
}
func handle(_ backgroundTasks: Set<WKRefreshBackgroundTask>) {
_ = HomeAssistantAPI.SyncWatchContext()
// Sent when the system needs to launch the application in the background to process tasks.
// Tasks arrive in a set, so loop through and process each one.
for task in backgroundTasks {
// Use a switch statement to check the task type
switch task {
case let backgroundTask as WKApplicationRefreshBackgroundTask:
// Be sure to complete the background task once youre done.
Current.Log.verbose("WKApplicationRefreshBackgroundTask received")
firstly {
when(fulfilled: Current.apis.map { $0.updateComplications(passively: true) })
}.ensureThen {
Current.backgroundRefreshScheduler.schedule()
}.ensure {
backgroundTask.setTaskCompletedWithSnapshot(false)
}.cauterize()
case let snapshotTask as WKSnapshotRefreshBackgroundTask:
// Snapshot tasks have a unique completion call, make sure to set your expiration date
snapshotTask.setTaskCompleted(
restoredDefaultState: true,
estimatedSnapshotExpiration: Date.distantFuture,
userInfo: nil
)
case let connectivityTask as WKWatchConnectivityRefreshBackgroundTask:
enqueueForCompletion(connectivityTask)
case let urlSessionTask as WKURLSessionRefreshBackgroundTask:
// Be sure to complete the URL session task once youre done.
Current.webhooks.handleBackground(for: urlSessionTask.sessionIdentifier) {
Current.backgroundRefreshScheduler.schedule().done {
urlSessionTask.setTaskCompletedWithSnapshot(false)
}
}
case let relevantShortcutTask as WKRelevantShortcutRefreshBackgroundTask:
// Be sure to complete the relevant-shortcut task once you're done.
relevantShortcutTask.setTaskCompletedWithSnapshot(false)
case let intentDidRunTask as WKIntentDidRunRefreshBackgroundTask:
// Be sure to complete the intent-did-run task once you're done.
intentDidRunTask.setTaskCompletedWithSnapshot(false)
default:
// make sure to complete unhandled task types
task.setTaskCompletedWithSnapshot(false)
}
}
}
// Triggered when a complication is tapped
func handleUserActivity(_ userInfo: [AnyHashable: Any]?) {
let complication: WatchComplication?
if let identifier = userInfo?[CLKLaunchedComplicationIdentifierKey] as? String,
identifier != CLKDefaultComplicationIdentifier {
complication = Current.realm().object(
ofType: WatchComplication.self,
forPrimaryKey: identifier
)
} else if let date = userInfo?[CLKLaunchedTimelineEntryDateKey] as? Date,
let clkFamily = date.complicationFamilyFromEncodedDate {
let family = ComplicationGroupMember(family: clkFamily)
complication = Current.realm().object(
ofType: WatchComplication.self,
forPrimaryKey: family.rawValue
)
} else {
complication = nil
}
if let complication {
Current.Log.info("launched for \(complication.identifier) of family \(complication.Family)")
} else if let identifier = userInfo?[CLKLaunchedComplicationIdentifierKey] as? String,
identifier == AssistDefaultComplication.defaultComplicationId {
NotificationCenter.default.post(name: AssistDefaultComplication.launchNotification, object: nil)
} else {
Current.Log.verbose("unknown or no complication launched the app")
}
}
func setupWatchCommunicator() {
// This directly mutates the data structure for observations to avoid race conditions.
Communicator.State.observations.store[.init(queue: .main)] = { state in
Current.Log.verbose("Activation state changed: \(state)")
_ = HomeAssistantAPI.SyncWatchContext()
}
Reachability.observations.store[.init(queue: .main)] = { reachability in
Current.Log.verbose("Reachability changed: \(reachability)")
}
InteractiveImmediateMessage.observations.store[.init(queue: .main)] = { message in
Current.Log.verbose("Received message: \(message.identifier)")
self.endWatchConnectivityBackgroundTaskIfNecessary()
}
immediateCommunicatorService = ImmediateCommunicatorService.shared
ImmediateMessage.observations.store[.init(queue: .main)] = { [weak self] message in
Current.Log.verbose("Received message: \(message.identifier)")
self?.immediateCommunicatorService?.evaluateMessage(message)
self?.endWatchConnectivityBackgroundTaskIfNecessary()
}
GuaranteedMessage.observations.store[.init(queue: .main)] = { message in
Current.Log.verbose("Received guaranteed message! \(message)")
if message.identifier == GuaranteedMessages.sync.rawValue {
_ = HomeAssistantAPI.SyncWatchContext()
}
self.endWatchConnectivityBackgroundTaskIfNecessary()
}
Blob.observations.store[.init(queue: .main)] = { blob in
Current.Log.verbose("Received blob: \(blob.identifier)")
self.endWatchConnectivityBackgroundTaskIfNecessary()
}
Context.observations.store[.init(queue: .main)] = { [weak self] context in
Current.Log.verbose("Received context: \(context)")
self?.updateContext(context.content)
}
ComplicationInfo.observations.store[.init(queue: .main)] = { complicationInfo in
Current.Log.verbose("Received complication info: \(complicationInfo)")
self.updateComplications()
}
_ = Communicator.shared
}
private func enqueueForCompletion(_ task: WKWatchConnectivityRefreshBackgroundTask) {
DispatchQueue.main.async { [self] in
guard Communicator.shared.hasPendingDataToBeReceived else {
// nothing else to be received
task.setTaskCompletedWithSnapshot(false)
return
}
// wait for it to send the next set of data
watchConnectivityBackgroundPromise.done {
task.setTaskCompletedWithSnapshot(false)
}
if watchConnectivityWatchdogTimer == nil || watchConnectivityWatchdogTimer?.isValid == false {
// 10s should be more than enough time, and the system timer's at 15s (last tested watchOS 7)
let timer = Timer.scheduledTimer(
withTimeInterval: 10.0,
repeats: true
) { [weak self] _ in
// we endeavor to not need this timer, but apple's api is so difficult to micromanage
// that it's just safer to guess and check every few seconds
Current.Log.info("ending background task due to our own watchdog timer")
self?.endWatchConnectivityBackgroundTaskIfNecessary()
}
watchConnectivityBackgroundPromise.done {
timer.invalidate()
}
watchConnectivityWatchdogTimer = timer
}
}
}
private func endWatchConnectivityBackgroundTaskIfNecessary() {
DispatchQueue.main.async { [self] in
guard !Communicator.shared.hasPendingDataToBeReceived else { return }
// complete the current one
watchConnectivityBackgroundSeal(())
// and set up a new one for the next chain of updates
(watchConnectivityBackgroundPromise, watchConnectivityBackgroundSeal) = Guarantee<Void>.pending()
}
}
private func updateContext(_ content: Content) {
let realm = Current.realm()
if let servers = content["servers"] as? Data {
Current.servers.restoreState(servers)
}
if let complicationsDictionary = content["complications"] as? [[String: Any]] {
let complications = complicationsDictionary.compactMap { try? WatchComplication(JSON: $0) }
Current.Log.verbose("Updating complications from context \(complications)")
realm.reentrantWrite {
realm.delete(realm.objects(WatchComplication.self))
realm.add(complications, update: .all)
}
}
updateComplications()
}
private var isUpdatingComplications = false
private func updateComplications() {
// avoid double-updating due to e.g. complication info update request
guard !isUpdatingComplications else { return }
isUpdatingComplications = true
firstly {
when(fulfilled: Current.apis.map { $0.updateComplications(passively: true) })
}.ensure { [self] in
isUpdatingComplications = false
}.ensure { [self] in
endWatchConnectivityBackgroundTaskIfNecessary()
}.cauterize()
}
func didRegisterForRemoteNotifications(withDeviceToken deviceToken: Data) {
let apnsToken = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
Current.Log.verbose("Successfully registered for push notifications! APNS token: \(apnsToken)")
}
func didFailToRegisterForRemoteNotificationsWithError(_ error: Error) {
Current.Log.error("Error when trying to register for push: \(error)")
}
}
extension ExtensionDelegate: UNUserNotificationCenterDelegate {
func userNotificationCenter(
_ center: UNUserNotificationCenter,
willPresent notification: UNNotification,
withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void
) {
completionHandler([.alert, .badge, .sound])
}
func userNotificationCenter(
_ center: UNUserNotificationCenter,
didReceive response: UNNotificationResponse,
withCompletionHandler completionHandler: @escaping () -> Void
) {
guard let info = HomeAssistantAPI.PushActionInfo(response: response),
let server = Current.servers.server(for: response.notification.request.content) else {
completionHandler()
return
}
firstly { () -> Promise<Void> in
let (promise, seal) = Promise<Void>.pending()
if Communicator.shared.currentReachability == .immediatelyReachable {
Current.Log.info("sending via phone")
Communicator.shared.send(.init(
identifier: InteractiveImmediateMessages.pushAction.rawValue,
content: ["PushActionInfo": info.toJSON(), "Server": server.identifier.rawValue],
reply: { message in
Current.Log.verbose("Received reply dictionary \(message)")
seal.fulfill(())
}
), errorHandler: { error in
Current.Log.error("Received error when sending immediate message \(error)")
seal.reject(error)
})
} else {
Current.Log.info("sending via local")
Current.api(for: server)?.handlePushAction(for: info)
.pipe(to: seal.resolve)
}
return promise
}.ensure {
completionHandler()
}.cauterize()
}
}