linphone-iphone/Linphone/LinphoneApp.swift

/*
 * Copyright (c) 2010-2023 Belledonne Communications SARL.
 *
 * This file is part of linphone-iphone
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import SwiftUI
import linphonesw
import UserNotifications

let accountTokenNotification = Notification.Name("AccountCreationTokenReceived")
var displayedChatroomPeerAddr: String?

class AppDelegate: NSObject, UIApplicationDelegate, UNUserNotificationCenterDelegate {
	
	var launchNotificationCallId: String?
	var launchNotificationPeerAddr: String?
	var launchNotificationLocalAddr: String?
	
	var coreContext: CoreContext?
 	var navigationManager: NavigationManager?
	
	func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
		let tokenStr = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
		Log.info("Received remote push token : \(tokenStr)")
		if let coreContext = coreContext {
			coreContext.doOnCoreQueue { core in
				Log.info("Forwarding remote push token to core")
				core.didRegisterForRemotePushWithStringifiedToken(deviceTokenStr: tokenStr + ":remote")
			}
		}
	}
	
	func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
		Log.error("Failed to register for push notifications : \(error.localizedDescription)")
	}
	
	func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
		Log.info("Received background push notification, payload = \(userInfo.description)")
		let creationToken = (userInfo["customPayload"] as? NSDictionary)?["token"] as? String
		if let creationToken = creationToken {
			NotificationCenter.default.post(name: accountTokenNotification, object: nil, userInfo: ["token": creationToken])
		}
		
		completionHandler(UIBackgroundFetchResult.newData)
	}
					 
	func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
		// Set up notifications
		UNUserNotificationCenter.current().delegate = self
		
		return true
	}
	
	// Called when the user interacts with the notification
	func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
		let userInfo = response.notification.request.content.userInfo
		
		if let callId = userInfo["CallId"] as? String, let peerAddr = userInfo["peer_addr"] as? String, let localAddr = userInfo["local_addr"] as? String {
			if self.navigationManager != nil {
				self.navigationManager!.selectedCallId = callId
				self.navigationManager!.peerAddr = peerAddr
				self.navigationManager!.localAddr = localAddr
			} else {
				launchNotificationCallId = callId
				launchNotificationPeerAddr = peerAddr
				launchNotificationLocalAddr = localAddr
			}
		}
		
		completionHandler()
	}
	
	// Display notifications on foreground
	func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
		let userInfo = notification.request.content.userInfo
		Log.info("Received push notification in foreground, payload= \(userInfo)")
		
		let strPeerAddr = userInfo["peer_addr"] as? String
		if strPeerAddr == nil {
			completionHandler([.banner, .sound])
		} else {
			// Only display notification if we're not in the chatroom they come from
			if displayedChatroomPeerAddr != strPeerAddr {
				if let coreContext = coreContext {
					coreContext.doOnCoreQueue { core in
						let nilParams: ConferenceParams? = nil
						if 	let peerAddr = try? Factory.Instance.createAddress(addr: strPeerAddr!)
								, let chatroom = core.searchChatRoom(params: nilParams, localAddr: nil, remoteAddr: peerAddr, participants: nil), chatroom.muted {
							Log.info("message comes from a muted chatroom, ignore it")
							return
						}
						completionHandler([.banner, .sound])
					}
				}
			}
		}
			
	}
	
	func applicationWillTerminate(_ application: UIApplication) {
		Log.info("IOS applicationWillTerminate")
		if let coreContext = coreContext {
			coreContext.doOnCoreQueue(synchronous: true) { core in
				Log.info("applicationWillTerminate - Stopping linphone core")
				MagicSearchSingleton.shared.destroyMagicSearch()
				if core.globalState != GlobalState.Off {
					core.stop()
				} else {
					Log.info("applicationWillTerminate - Core already stopped")
				}
			}
		}
	}
}

@main
struct LinphoneApp: App {
	
	@Environment(\.scenePhase) var scenePhase
	@UIApplicationDelegateAdaptor(AppDelegate.self) var delegate
	
    @StateObject private var coreContext = CoreContext.shared
	@StateObject private var navigationManager = NavigationManager()
	
	@ObservedObject private var telecomManager = TelecomManager.shared
	@ObservedObject private var sharedMainViewModel = SharedMainViewModel.shared
	
	@State private var pendingURL: URL?
	
	var body: some Scene {
		WindowGroup {
			if coreContext.coreHasStartedOnce {
				ZStack {
					if !sharedMainViewModel.welcomeViewDisplayed {
						ZStack {
							WelcomeView()
							
							ToastView()
								.zIndex(3)
						}
					} else if (coreContext.coreIsStarted && coreContext.accounts.isEmpty) || sharedMainViewModel.displayProfileMode {
						ZStack {
							AssistantView()
							
							ToastView()
								.zIndex(3)
						}
					} else {
						ContentView()
							.environmentObject(navigationManager)
							.onAppear {
								// Link the navigation manager to the AppDelegate
								delegate.coreContext = coreContext
								delegate.navigationManager = navigationManager
								
								// Check if the app was launched with a notification payload
								if let callId = delegate.launchNotificationCallId, let peerAddr = delegate.launchNotificationPeerAddr, let localAddr = delegate.launchNotificationLocalAddr {
									// Notify the app to navigate to the chat room
									navigationManager.openChatRoom(callId: callId, peerAddr: peerAddr, localAddr: localAddr)
								}
								
								//accountProfileViewModel!.setAvatarModel()
							}
					}
					
					if coreContext.coreIsStarted {
						VStack {
							
						}
						.onAppear {
							if let url = pendingURL {
								URIHandler.handleURL(url: url)
								pendingURL = nil
							}
						}
					}
				}
				.onOpenURL { url in
					if coreContext.coreIsStarted {
						URIHandler.handleURL(url: url)
					} else {
						pendingURL = url
					}
				}
			} else {
				SplashScreen()
			}
		}.onChange(of: scenePhase) { newPhase in
			if !telecomManager.callInProgress {
				if newPhase == .active {
					Log.info("Entering foreground")
					coreContext.onEnterForeground()
				} else if newPhase == .inactive {
				} else if newPhase == .background {
					Log.info("Entering background")
					coreContext.onEnterBackground()
				}
			}
		}
	}
}