WIP: Add abiity to receive using iOS app

QuickDropiOS/SendModel.swift

@@ -0,0 +1,90 @@
+//
+//  Model.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 28.07.25.
+//
+
+import SwiftUI
+
+class SendModel: ObservableObject, OutboundAppDelegate {
+    
+    @Published var foundDevices: [RemoteDeviceInfo] = []
+    @Published var selectedDevice: RemoteDeviceInfo?
+    
+    @Published var progressState: String? = nil
+    @Published var progressValue: Double? = nil
+    
+    var urls: [URL] = []
+    var textToSend: String? = nil
+    
+    private var connectionEstablished = false
+    private var timeoutDispatchWorkItem: DispatchWorkItem? = nil
+    
+    init() {
+        NearbyConnectionManager.shared.startDeviceDiscovery()
+        NearbyConnectionManager.shared.becomeVisible()
+        NearbyConnectionManager.shared.addShareExtensionDelegate(self)
+    }
+    
+    func addDevice(device: RemoteDeviceInfo) {
+        withAnimation {
+            foundDevices.append(device)
+        }
+    }
+    
+    func removeDevice(id: String) {
+        withAnimation {
+            foundDevices.removeAll { $0.id == id }
+        }
+    }
+    
+    func connectionWasEstablished(pinCode: String) {
+        connectionEstablished = true
+        progressState = String(format: "PinCode".localized(), arguments: [pinCode])
+        progressValue = 0
+    }
+    
+    func connectionFailed(with error: any Error) {
+        
+        ErrorAlertHandler.shared.showErrorAlert(for: selectedDevice?.name ?? "?", error: error)
+        
+        progressValue = nil
+        selectedDevice = nil
+    }
+    
+    func transferAccepted() {
+        progressState = "Sending".localized()
+    }
+    
+    func transferProgress(progress: Double) {
+        progressValue = progress
+    }
+    
+    func transferFinished() {
+        progressValue = 0
+        selectedDevice = nil
+        progressState = "TransferFinished".localized()
+    }
+    
+    func startTransferWithQrCode(device: RemoteDeviceInfo) {
+        selectDevice(device: device)
+    }
+    
+    func selectDevice(device: RemoteDeviceInfo) {
+        
+        // already selected, cancel transfer
+        if device == selectedDevice {
+            progressValue = 0
+            progressState = nil
+            selectedDevice = nil
+            NearbyConnectionManager.shared.cancelOutgoingTransfer(id: device.id!)
+        }
+        else {
+            progressValue = 0
+            progressState = "Connecting".localized()
+            selectedDevice = device
+            NearbyConnectionManager.shared.startOutgoingTransfer(deviceID: device.id!, delegate: self, urls: urls, textToSend: textToSend)
+        }
+    }
+}