Sharing multiple files from WhatsApp on iOS about send-intent HOT 11 OPEN

var window: UIWindow?
let store = ShareStore.store

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.
    return true
}

func applicationWillResignActive(_ application: UIApplication) {
    // 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, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
}

func applicationDidEnterBackground(_ application: UIApplication) {
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

func applicationWillEnterForeground(_ application: UIApplication) {
    // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}

func applicationDidBecomeActive(_ application: UIApplication) {
    // 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.
}

func applicationWillTerminate(_ application: UIApplication) {
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}

func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {

    var success = true
    if CAPBridge.handleOpenUrl(url, options) {
        success = ApplicationDelegateProxy.shared.application(app, open: url, options: options)
    }

    guard let components = NSURLComponents(url: url, resolvingAgainstBaseURL: true),
          let params = components.queryItems else {
              return false
          }

    let titles = params.filter { $0.name == "title" }
    let descriptions = params.filter { $0.name == "description" }
    let types = params.filter { $0.name == "type" }
    let urls = params.filter { $0.name == "url" }

    store.shareItems.removeAll()
    if(titles.count > 0){
        for index in 0...titles.count-1 {
            var shareItem: JSObject = JSObject()
            shareItem["title"] = titles[index].value!
            shareItem["description"] = descriptions[index].value!
            shareItem["type"] = types[index].value!
            shareItem["url"] = urls[index].value!
            store.shareItems.append(shareItem)
        }
    }

    dump(store.shareItems)

    store.processed = false
    let nc = NotificationCenter.default
    nc.post(name: Notification.Name("triggerSendIntent"), object: nil )

    return success
}

func application(_ application: UIApplication, continue userActivity: NSUserActivity, restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool {
    // Called when the app was launched with an activity, including Universal Links.
    // Feel free to add additional processing here, but if you want the App API to support
    // tracking app url opens, make sure to keep this call
    return ApplicationDelegateProxy.shared.application(application, continue: userActivity, restorationHandler: restorationHandler)
}

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
  NotificationCenter.default.post(name: .capacitorDidRegisterForRemoteNotifications, object: deviceToken)
}

func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
  NotificationCenter.default.post(name: .capacitorDidFailToRegisterForRemoteNotifications, object: error)
}

public var title: String?
public var type: String?
public var url: String?

private var shareItems: [ShareItem] = []

override public func viewDidAppear(_ animated: Bool) {
   super.viewDidAppear(animated)
   self.extensionContext!.completeRequest(returningItems: [], completionHandler: nil)
}

private func sendData() {
    let queryItems = shareItems.map {
        [
            URLQueryItem(
                name: "title",
                value: $0.title?.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed) ?? ""),
            URLQueryItem(name: "description", value: ""),
            URLQueryItem(
                name: "type",
                value: $0.type?.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed) ?? ""),
            URLQueryItem(
                name: "url",
                value: $0.url?.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed) ?? ""),
        ]
    }.flatMap({ $0 })

    var urlComps = URLComponents(string: "vcpgo://")!
    urlComps.queryItems = queryItems
    openURL(urlComps.url!)
}

fileprivate func createSharedFileUrl(_ url: URL?) -> String {
    let fileManager = FileManager.default

    let copyFileUrl =
    fileManager.containerURL(forSecurityApplicationGroupIdentifier: "group.vcpgo")!
        .absoluteString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)! + "/" + url!
        .lastPathComponent.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
    try? Data(contentsOf: url!).write(to: URL(string: copyFileUrl)!)

    return copyFileUrl
}

func saveScreenshot(_ image: UIImage) -> String {
    let fileManager = FileManager.default

    let copyFileUrl =
    fileManager.containerURL(forSecurityApplicationGroupIdentifier: "group.vcpgo")!
        .absoluteString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)!
    + "/screenshot.png"
    do {
        try image.pngData()?.write(to: URL(string: copyFileUrl)!)
        return copyFileUrl
    } catch {
        print(error.localizedDescription)
        return ""
    }
}

fileprivate func handleTypeUrl(_ attachment: NSItemProvider)
async throws -> ShareItem
{
    let results = try await attachment.loadItem(forTypeIdentifier: kUTTypeURL as String, options: nil)
    let url = results as! URL?
    let shareItem: ShareItem = ShareItem()
    
    if url!.isFileURL {
        shareItem.title = url!.lastPathComponent
        shareItem.type = "application/" + url!.pathExtension.lowercased()
        shareItem.url = createSharedFileUrl(url)
    } else {
        shareItem.title = url!.absoluteString
        shareItem.url = url!.absoluteString
        shareItem.type = "text/plain"
    }
    
    return shareItem
}

fileprivate func handleTypeText(_ attachment: NSItemProvider)
async throws -> ShareItem
{
    let results = try await attachment.loadItem(forTypeIdentifier: kUTTypeText as String, options: nil)
    let shareItem: ShareItem = ShareItem()
    let text = results as! String
    shareItem.title = text
    shareItem.type = "text/plain"
    return shareItem
}

fileprivate func handleTypeMovie(_ attachment: NSItemProvider)
async throws -> ShareItem
{
    let results = try await attachment.loadItem(forTypeIdentifier: kUTTypeMovie as String, options: nil)
    let shareItem: ShareItem = ShareItem()
    
    let url = results as! URL?
    shareItem.title = url!.lastPathComponent
    shareItem.type = "video/" + url!.pathExtension.lowercased()
    shareItem.url = createSharedFileUrl(url)
    return shareItem
}

fileprivate func handleTypeImage(_ attachment: NSItemProvider)
async throws -> ShareItem
{
    let data = try await attachment.loadItem(forTypeIdentifier: kUTTypeImage as String, options: nil)
    
    let shareItem: ShareItem = ShareItem()
    switch data {
    case let image as UIImage:
        shareItem.title = "screenshot"
        shareItem.type = "image/png"
        shareItem.url = self.saveScreenshot(image)
    case let url as URL:
        shareItem.title = url.lastPathComponent
        shareItem.type = "image/" + url.pathExtension.lowercased()
        shareItem.url = self.createSharedFileUrl(url)
    default:
        print("Unexpected image data:", type(of: data))
    }
    return shareItem
}

override public func viewDidLoad() {
    super.viewDidLoad()
    
    shareItems.removeAll()
    
    let extensionItem = extensionContext?.inputItems[0] as! NSExtensionItem
    Task {
        try await withThrowingTaskGroup(
            of: ShareItem.self,
            body: { taskGroup in
                
                for attachment in extensionItem.attachments! {
                    if attachment.hasItemConformingToTypeIdentifier(kUTTypeURL as String) {
                        taskGroup.addTask {
                            return try await self.handleTypeUrl(attachment)
                        }
                    } else if attachment.hasItemConformingToTypeIdentifier(kUTTypeText as String) {
                        taskGroup.addTask {
                            return try await self.handleTypeText(attachment)
                        }
                    } else if attachment.hasItemConformingToTypeIdentifier(kUTTypeMovie as String) {
                        taskGroup.addTask {
                            return try await self.handleTypeMovie(attachment)
                        }
                    } else if attachment.hasItemConformingToTypeIdentifier(kUTTypeImage as String) {
                        taskGroup.addTask {
                            return try await self.handleTypeImage(attachment)
                        }
                    }
                }
                
                for try await item in taskGroup {
                    self.shareItems.append(item)
                }
            })
        
        self.sendData()
        
    }
}

@objc func openURL(_ url: URL) -> Bool {
    var responder: UIResponder? = self
    while responder != nil {
        if let application = responder as? UIApplication {
            return application.perform(#selector(openURL(_:)), with: url) != nil
        }
        responder = responder?.next
    }
    return false
}