NetNewsWire/iOS/AppDelegate.swift

475 lines
14 KiB
Swift

//
// AppDelegate.swift
// NetNewsWire
//
// Created by Maurice Parker on 4/8/19.
// Copyright © 2019 Ranchero Software. All rights reserved.
//
import UIKit
import Web
import Account
@preconcurrency import BackgroundTasks
import os.log
import WidgetKit
import Core
import Images
import libxml2
@MainActor var appDelegate: AppDelegate!
@UIApplicationMain
final class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate, UnreadCountProvider {
private var bgTaskDispatchQueue = DispatchQueue.init(label: "BGTaskScheduler")
private var waitBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
private var syncBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
var syncTimer: ArticleStatusSyncTimer?
var shuttingDown = false {
didSet {
if shuttingDown {
syncTimer?.shuttingDown = shuttingDown
syncTimer?.invalidate()
}
}
}
nonisolated(unsafe) let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "Application")
var userNotificationManager: UserNotificationManager!
var extensionContainersFile: ExtensionContainersFile!
var extensionFeedAddRequestFile: ExtensionFeedAddRequestFile!
var unreadCount = 0 {
didSet {
if unreadCount != oldValue {
handleUnreadCountDidChange()
}
}
}
var isSyncArticleStatusRunning = false
var isWaitingForSyncTasks = false
override init() {
xmlInitParser()
super.init()
appDelegate = self
NotificationCenter.default.addObserver(self, selector: #selector(unreadCountDidChange(_:)), name: .UnreadCountDidChange, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(accountRefreshDidFinish(_:)), name: .AccountRefreshDidFinish, object: nil)
}
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
AppDefaults.registerDefaults()
if AppDefaults.shared.isFirstRun {
os_log(.debug, "Is first run.")
}
FaviconGenerator.faviconTemplateImage = AppAsset.faviconTemplateImage
importFeedsIfNeeded()
registerBackgroundTasks()
CacheCleaner.purgeIfNecessary()
initializeDownloaders()
initializeHomeScreenQuickActions()
Task { @MainActor in
self.unreadCount = AccountManager.shared.unreadCount
}
UNUserNotificationCenter.current().requestAuthorization(options:[.badge, .sound, .alert]) { (granted, error) in
if granted {
Task { @MainActor in
UIApplication.shared.registerForRemoteNotifications()
}
}
}
UNUserNotificationCenter.current().delegate = self
userNotificationManager = UserNotificationManager()
extensionContainersFile = ExtensionContainersFile()
extensionFeedAddRequestFile = ExtensionFeedAddRequestFile()
syncTimer = ArticleStatusSyncTimer()
#if DEBUG
syncTimer!.update()
#endif
return true
}
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) async -> UIBackgroundFetchResult {
resumeDatabaseProcessingIfNecessary()
await AccountManager.shared.receiveRemoteNotification(userInfo: userInfo)
suspendApplication()
return .newData
}
func applicationWillTerminate(_ application: UIApplication) {
shuttingDown = true
}
func applicationDidEnterBackground(_ application: UIApplication) {
ArticleStringFormatter.emptyCaches()
MultilineUILabelSizer.emptyCache()
SingleLineUILabelSizer.emptyCache()
IconImageCache.shared.emptyCache()
AccountManager.shared.emptyCaches()
Task.detached {
await DownloadWithCacheManager.shared.cleanupCache()
}
}
// MARK: Notifications
@objc func unreadCountDidChange(_ note: Notification) {
if note.object is AccountManager {
unreadCount = AccountManager.shared.unreadCount
}
}
@objc func accountRefreshDidFinish(_ note: Notification) {
AppDefaults.shared.lastRefresh = Date()
}
// MARK: - API
func manualRefresh(errorHandler: @escaping (Error) -> ()) {
let sceneDelegates = UIApplication.shared.connectedScenes.compactMap{ $0.delegate as? SceneDelegate }
for sceneDelegate in sceneDelegates {
sceneDelegate.cleanUp(conditional: true)
}
Task { @MainActor in
await AccountManager.shared.refreshAll(errorHandler: errorHandler)
}
}
func resumeDatabaseProcessingIfNecessary() {
if AccountManager.shared.isSuspended {
AccountManager.shared.resumeAll()
os_log("Application processing resumed.", log: self.log, type: .info)
}
}
func prepareAccountsForBackground() {
extensionFeedAddRequestFile.suspend()
syncTimer?.invalidate()
scheduleBackgroundFeedRefresh()
syncArticleStatus()
waitForSyncTasksToFinish()
}
func prepareAccountsForForeground() {
extensionFeedAddRequestFile.resume()
syncTimer?.update()
Task { @MainActor in
if let lastRefresh = AppDefaults.shared.lastRefresh {
if Date() > lastRefresh.addingTimeInterval(15 * 60) {
await AccountManager.shared.refreshAll(errorHandler: ErrorHandler.log)
} else {
await AccountManager.shared.syncArticleStatusAll()
}
} else {
await AccountManager.shared.refreshAll(errorHandler: ErrorHandler.log)
}
}
}
nonisolated func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
completionHandler([.list, .banner, .badge, .sound])
}
nonisolated func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
MainActor.assumeIsolated {
defer { completionHandler() }
let userInfo = response.notification.request.content.userInfo
switch response.actionIdentifier {
case "MARK_AS_READ":
handleMarkAsRead(userInfo: userInfo)
case "MARK_AS_STARRED":
handleMarkAsStarred(userInfo: userInfo)
default:
if let sceneDelegate = response.targetScene?.delegate as? SceneDelegate {
sceneDelegate.handle(response)
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5, execute: {
sceneDelegate.coordinator.dismissIfLaunchingFromExternalAction()
})
}
}
}
}
}
// MARK: App Initialization
private extension AppDelegate {
private func initializeHomeScreenQuickActions() {
let unreadTitle = NSLocalizedString("First Unread", comment: "First Unread")
let unreadIcon = UIApplicationShortcutIcon(systemImageName: "chevron.down.circle")
let unreadItem = UIApplicationShortcutItem(type: "com.ranchero.NetNewsWire.FirstUnread", localizedTitle: unreadTitle, localizedSubtitle: nil, icon: unreadIcon, userInfo: nil)
let searchTitle = NSLocalizedString("Search", comment: "Search")
let searchIcon = UIApplicationShortcutIcon(systemImageName: "magnifyingglass")
let searchItem = UIApplicationShortcutItem(type: "com.ranchero.NetNewsWire.ShowSearch", localizedTitle: searchTitle, localizedSubtitle: nil, icon: searchIcon, userInfo: nil)
let addTitle = NSLocalizedString("Add Feed", comment: "Add Feed")
let addIcon = UIApplicationShortcutIcon(systemImageName: "plus")
let addItem = UIApplicationShortcutItem(type: "com.ranchero.NetNewsWire.ShowAdd", localizedTitle: addTitle, localizedSubtitle: nil, icon: addIcon, userInfo: nil)
UIApplication.shared.shortcutItems = [addItem, searchItem, unreadItem]
}
}
// MARK: Go To Background
private extension AppDelegate {
func waitForSyncTasksToFinish() {
guard !isWaitingForSyncTasks && UIApplication.shared.applicationState == .background else { return }
isWaitingForSyncTasks = true
self.waitBackgroundUpdateTask = UIApplication.shared.beginBackgroundTask { [weak self] in
guard let self = self else { return }
self.completeProcessing(true)
os_log("Accounts wait for progress terminated for running too long.", log: self.log, type: .info)
}
DispatchQueue.main.async { [weak self] in
self?.waitToComplete() { [weak self] suspend in
self?.completeProcessing(suspend)
}
}
}
func waitToComplete(completion: @escaping (Bool) -> Void) {
guard UIApplication.shared.applicationState == .background else {
os_log("App came back to foreground, no longer waiting.", log: self.log, type: .info)
completion(false)
return
}
if AccountManager.shared.refreshInProgress || isSyncArticleStatusRunning {
os_log("Waiting for sync to finish...", log: self.log, type: .info)
DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { [weak self] in
self?.waitToComplete(completion: completion)
}
} else {
os_log("Refresh progress complete.", log: self.log, type: .info)
completion(true)
}
}
func completeProcessing(_ suspend: Bool) {
if suspend {
suspendApplication()
}
UIApplication.shared.endBackgroundTask(self.waitBackgroundUpdateTask)
self.waitBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
isWaitingForSyncTasks = false
}
func syncArticleStatus() {
guard !isSyncArticleStatusRunning else { return }
isSyncArticleStatusRunning = true
let completeProcessing = { [unowned self] in
self.isSyncArticleStatusRunning = false
UIApplication.shared.endBackgroundTask(self.syncBackgroundUpdateTask)
self.syncBackgroundUpdateTask = UIBackgroundTaskIdentifier.invalid
}
self.syncBackgroundUpdateTask = UIApplication.shared.beginBackgroundTask {
completeProcessing()
os_log("Accounts sync processing terminated for running too long.", log: self.log, type: .info)
}
Task { @MainActor in
await AccountManager.shared.syncArticleStatusAll()
completeProcessing()
}
}
func suspendApplication() {
guard UIApplication.shared.applicationState == .background else { return }
AccountManager.shared.suspendNetworkAll()
AccountManager.shared.suspendDatabaseAll()
ArticleThemeDownloader.cleanUp()
CoalescingQueue.standard.performCallsImmediately()
for scene in UIApplication.shared.connectedScenes {
if let sceneDelegate = scene.delegate as? SceneDelegate {
sceneDelegate.suspend()
}
}
os_log("Application processing suspended.", log: self.log, type: .info)
}
}
// MARK: Background Tasks
private extension AppDelegate {
/// Register all background tasks.
func registerBackgroundTasks() {
// Register background feed refresh.
BGTaskScheduler.shared.register(forTaskWithIdentifier: "com.ranchero.NetNewsWire.FeedRefresh", using: nil) { (task) in
self.performBackgroundFeedRefresh(with: task as! BGAppRefreshTask)
}
}
/// Schedules a background app refresh based on `AppDefaults.refreshInterval`.
func scheduleBackgroundFeedRefresh() {
let request = BGAppRefreshTaskRequest(identifier: "com.ranchero.NetNewsWire.FeedRefresh")
request.earliestBeginDate = Date(timeIntervalSinceNow: 15 * 60)
// We send this to a dedicated serial queue because as of 11/05/19 on iOS 13.2 the call to the
// task scheduler can hang indefinitely.
bgTaskDispatchQueue.async {
do {
try BGTaskScheduler.shared.submit(request)
} catch {
Task { @MainActor in
os_log(.error, log: self.log, "Could not schedule app refresh: %@", error.localizedDescription)
}
}
}
}
/// Performs background feed refresh.
/// - Parameter task: `BGAppRefreshTask`
/// - Warning: As of Xcode 11 beta 2, when triggered from the debugger this doesn't work.
func performBackgroundFeedRefresh(with task: BGAppRefreshTask) {
scheduleBackgroundFeedRefresh() // schedule next refresh
os_log("Woken to perform account refresh.", log: self.log, type: .info)
Task { @MainActor in
if AccountManager.shared.isSuspended {
AccountManager.shared.resumeAll()
}
await AccountManager.shared.refreshAll(errorHandler: ErrorHandler.log)
if !AccountManager.shared.isSuspended {
try? WidgetDataEncoder.shared.encodeWidgetData()
self.suspendApplication()
os_log("Account refresh operation completed.", log: self.log, type: .info)
task.setTaskCompleted(success: true)
}
}
// set expiration handler
task.expirationHandler = { [weak task] in
DispatchQueue.main.sync {
self.suspendApplication()
}
os_log("Accounts refresh processing terminated for running too long.", log: self.log, type: .info)
task?.setTaskCompleted(success: false)
}
}
}
// Handle Notification Actions
private extension AppDelegate {
@MainActor func handleMarkAsRead(userInfo: [AnyHashable: Any]) {
guard let articlePathInfo = ArticlePathInfo(userInfo: userInfo) else {
return
}
resumeDatabaseProcessingIfNecessary()
guard let accountID = articlePathInfo.accountID, let account = AccountManager.shared.existingAccount(with: accountID) else {
os_log(.debug, "No account found from notification.")
return
}
guard let articleID = articlePathInfo.articleID else {
os_log(.debug, "No articleID found from notification.")
return
}
Task { @MainActor in
guard let articles = try? await account.articles(for: .articleIDs([articleID])) else {
os_log(.debug, "No article found from search using %@", articleID)
return
}
try? await account.markArticles(articles, statusKey: .read, flag: true)
self.prepareAccountsForBackground()
try? await account.syncArticleStatus()
if !AccountManager.shared.isSuspended {
try? WidgetDataEncoder.shared.encodeWidgetData()
self.prepareAccountsForBackground()
self.suspendApplication()
}
}
}
@MainActor func handleMarkAsStarred(userInfo: [AnyHashable: Any]) {
guard let articlePathInfo = ArticlePathInfo(userInfo: userInfo) else {
return
}
resumeDatabaseProcessingIfNecessary()
guard let accountID = articlePathInfo.accountID, let account = AccountManager.shared.existingAccount(with: accountID) else {
os_log(.debug, "No account found from notification.")
return
}
guard let articleID = articlePathInfo.articleID else {
os_log(.debug, "No articleID found from notification.")
return
}
Task { @MainActor in
guard let articles = try? await account.articles(for: .articleIDs([articleID])) else {
os_log(.debug, "No article found from search using %@", articleID)
return
}
try? await account.markArticles(articles, statusKey: .starred, flag: true)
try? await account.syncArticleStatus()
if !AccountManager.shared.isSuspended {
try? WidgetDataEncoder.shared.encodeWidgetData()
self.prepareAccountsForBackground()
self.suspendApplication()
}
}
}
}