Initial commit

Add iOS app with Node.js/TypeScript backend for BeMyEars project. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-19 21:51:47 -05:00
commit d29b8182ca
52 changed files with 3623 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,56 @@
+# Build output
+build/
+dist/
+DerivedData/
+
+# Dependencies
+Pods/
+node_modules/
+
+# Xcode
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata/
+*.xccheckout
+*.moved-aside
+*.xcuserstate
+*.xcscmblueprint
+
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+._*
+
+# Environment and secrets
+.env
+.env.local
+.env.*.local
+*.pem
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Testing
+coverage/
+
+# Misc
+*.tmp
+*.temp
+.cache/
--- a/BeMyEars.xcodeproj/project.pbxproj
+++ b/BeMyEars.xcodeproj/project.pbxproj
@@ -0,0 +1,418 @@
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+}
--- a/BeMyEars.xcodeproj/project.xcworkspace/contents.xcworkspacedata
+++ b/BeMyEars.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>
--- a/BeMyEars.xcworkspace/contents.xcworkspacedata
+++ b/BeMyEars.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:BeMyEars.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>
--- a/BeMyEars/Assets.xcassets/AccentColor.colorset/Contents.json
+++ b/BeMyEars/Assets.xcassets/AccentColor.colorset/Contents.json
@@ -0,0 +1,11 @@
+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/100.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/100.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/1024.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/1024.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/114.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/114.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/120.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/120.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/144.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/144.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/152.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/152.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/167.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/167.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/180.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/180.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/20.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/20.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/29.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/29.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/40.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/40.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/50.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/50.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/57.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/57.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/58.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/58.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/60.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/60.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/72.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/72.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/76.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/76.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/80.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/80.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/87.png
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/87.png
--- a/BeMyEars/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/BeMyEars/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1 @@
+{"images":[{"size":"60x60","expected-size":"180","filename":"180.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"3x"},{"size":"40x40","expected-size":"80","filename":"80.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"2x"},{"size":"40x40","expected-size":"120","filename":"120.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"3x"},{"size":"60x60","expected-size":"120","filename":"120.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"2x"},{"size":"57x57","expected-size":"57","filename":"57.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"1x"},{"size":"29x29","expected-size":"58","filename":"58.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"2x"},{"size":"29x29","expected-size":"29","filename":"29.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"1x"},{"size":"29x29","expected-size":"87","filename":"87.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"3x"},{"size":"57x57","expected-size":"114","filename":"114.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"2x"},{"size":"20x20","expected-size":"40","filename":"40.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"2x"},{"size":"20x20","expected-size":"60","filename":"60.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"iphone","scale":"3x"},{"size":"1024x1024","filename":"1024.png","expected-size":"1024","idiom":"ios-marketing","folder":"Assets.xcassets/AppIcon.appiconset/","scale":"1x"},{"size":"40x40","expected-size":"80","filename":"80.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"2x"},{"size":"72x72","expected-size":"72","filename":"72.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"1x"},{"size":"76x76","expected-size":"152","filename":"152.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"2x"},{"size":"50x50","expected-size":"100","filename":"100.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"2x"},{"size":"29x29","expected-size":"58","filename":"58.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"2x"},{"size":"76x76","expected-size":"76","filename":"76.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"1x"},{"size":"29x29","expected-size":"29","filename":"29.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"1x"},{"size":"50x50","expected-size":"50","filename":"50.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"1x"},{"size":"72x72","expected-size":"144","filename":"144.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"2x"},{"size":"40x40","expected-size":"40","filename":"40.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"1x"},{"size":"83.5x83.5","expected-size":"167","filename":"167.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"2x"},{"size":"20x20","expected-size":"20","filename":"20.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"1x"},{"size":"20x20","expected-size":"40","filename":"40.png","folder":"Assets.xcassets/AppIcon.appiconset/","idiom":"ipad","scale":"2x"}]}
--- a/BeMyEars/Assets.xcassets/Contents.json
+++ b/BeMyEars/Assets.xcassets/Contents.json
@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}
--- a/BeMyEars/Assets.xcassets/appstore.png
+++ b/BeMyEars/Assets.xcassets/appstore.png
--- a/BeMyEars/Assets.xcassets/playstore.png
+++ b/BeMyEars/Assets.xcassets/playstore.png
--- a/BeMyEars/BeMyEars/Models/Models.swift
+++ b/BeMyEars/BeMyEars/Models/Models.swift
@@ -0,0 +1,86 @@
+import Foundation
+
+enum Role: String, Codable {
+    case caller
+    case interpreter
+}
+
+enum PresenceState: String, Codable {
+    case unavailable = "UNAVAILABLE"
+    case available = "AVAILABLE"
+    case ringing = "RINGING"
+    case inCall = "IN_CALL"
+}
+
+struct User: Identifiable, Codable, Hashable {
+    var id: String { username }
+    let username: String
+    let role: Role
+}
+
+struct CallState: Equatable {
+    var callId: String?
+    var remoteUser: String?
+    var status: CallStatus
+    
+    enum CallStatus: String {
+        case idle
+        case calling
+        case incoming
+        case connecting
+        case inCall
+        case ending
+    }
+}
+
+// Signaling Messages
+struct SignalingMessage: Codable {
+    let type: String
+    let callId: String?
+    let from: String?
+    let to: String?
+    let payload: AnyCodable?
+}
+
+// Helper for type-erased JSON payload
+struct AnyCodable: Codable {
+    let value: Any
+    
+    init(_ value: Any) {
+        self.value = value
+    }
+    
+    init(from decoder: Decoder) throws {
+        let container = try decoder.singleValueContainer()
+        if let x = try? container.decode(String.self) { value = x }
+        else if let x = try? container.decode(Int.self) { value = x }
+        else if let x = try? container.decode(Bool.self) { value = x }
+        else if let x = try? container.decode(Double.self) { value = x }
+        else if let x = try? container.decode([String: AnyCodable].self) { value = x.mapValues { $0.value } }
+        else if let x = try? container.decode([AnyCodable].self) { value = x.map { $0.value } }
+        else {
+            throw DecodingError.dataCorruptedError(in: container, debugDescription: "AnyCodable value cannot be decoded")
+        }
+    }
+    
+    func encode(to encoder: Encoder) throws {
+        var container = encoder.singleValueContainer()
+        if let x = value as? String { try container.encode(x) }
+        else if let x = value as? Int { try container.encode(x) }
+        else if let x = value as? Int32 { try container.encode(x) } // Added Int32
+        else if let x = value as? Bool { try container.encode(x) }
+        else if let x = value as? Double { try container.encode(x) }
+        else if let x = value as? [String: Any] {
+             // Basic support for nested dicts
+             let wrapped = x.mapValues { AnyCodable($0) }
+             try container.encode(wrapped)
+        }
+        else if let x = value as? [Any] {
+             let wrapped = x.map { AnyCodable($0) }
+             try container.encode(wrapped)
+        }
+        else {
+            throw EncodingError.invalidValue(value, EncodingError.Context(codingPath: container.codingPath, debugDescription: "AnyCodable value cannot be encoded"))
+        }
+    }
+}
--- a/BeMyEars/BeMyEars/Services/BonjourService.swift
+++ b/BeMyEars/BeMyEars/Services/BonjourService.swift
@@ -0,0 +1,77 @@
+import Foundation
+import Network
+import Combine
+
+class BonjourService: NSObject, ObservableObject, NetServiceBrowserDelegate, NetServiceDelegate {
+    @Published var foundServer: String?
+    
+    private var netServiceBrowser: NetServiceBrowser?
+    private var services = [NetService]()
+    
+    func start() {
+        print("BonjourService: Starting browsing (NetService)...")
+        netServiceBrowser = NetServiceBrowser()
+        netServiceBrowser?.delegate = self
+        netServiceBrowser?.searchForServices(ofType: "_bemyears._tcp", inDomain: "local.")
+    }
+    
+    func stop() {
+        netServiceBrowser?.stop()
+        netServiceBrowser = nil
+        services.removeAll()
+    }
+    
+    // MARK: - NetServiceBrowserDelegate
+    
+    func netServiceBrowser(_ browser: NetServiceBrowser, didFind service: NetService, moreComing: Bool) {
+        print("BonjourService: Found service \(service.name)")
+        services.append(service)
+        service.delegate = self
+        // 5 seconds timeout for resolution
+        service.resolve(withTimeout: 5.0)
+    }
+    
+    func netServiceBrowser(_ browser: NetServiceBrowser, didRemove service: NetService, moreComing: Bool) {
+        print("BonjourService: Removed service \(service.name)")
+        if let index = services.firstIndex(of: service) {
+            services.remove(at: index)
+        }
+    }
+    
+    func netServiceBrowser(_ browser: NetServiceBrowser, didNotSearch errorDict: [String : NSNumber]) {
+        print("BonjourService: Search failed: \(errorDict)")
+    }
+    
+    // MARK: - NetServiceDelegate
+    
+    func netServiceDidResolveAddress(_ sender: NetService) {
+        guard let addresses = sender.addresses else { return }
+        
+        for address in addresses {
+            let data = address as NSData
+            var storage = sockaddr_storage()
+            data.getBytes(&storage, length: MemoryLayout<sockaddr_storage>.size)
+            
+            if Int32(storage.ss_family) == AF_INET {
+                let ipStr = String(cString: inet_ntoa(data.bytes.load(as: sockaddr_in.self).sin_addr))
+                print("BonjourService: Resolved IPv4: \(ipStr)")
+                
+                // Found, update UI
+                DispatchQueue.main.async {
+                    self.foundServer = ipStr
+                }
+                // Stop specifically resolving this one or just keep going?
+                // We'll just stop searching once we find a valid IPv4
+                stop() 
+                return
+            } else if Int32(storage.ss_family) == AF_INET6 {
+                // Ignore IPv6
+                print("BonjourService: Ignoring IPv6 address found.")
+            }
+        }
+    }
+    
+    func netService(_ sender: NetService, didNotResolve errorDict: [String : NSNumber]) {
+        print("BonjourService: Resolve failed: \(errorDict)")
+    }
+}
--- a/BeMyEars/BeMyEars/Services/SignalingService.swift
+++ b/BeMyEars/BeMyEars/Services/SignalingService.swift
@@ -0,0 +1,84 @@
+import Foundation
+import Combine
+
+class SignalingService: ObservableObject {
+    private var webSocketTask: URLSessionWebSocketTask?
+    private let urlSession = URLSession(configuration: .default)
+    private var serverUrl: URL {
+        let ip = UserDefaults.standard.string(forKey: "server_ip") ?? "192.168.1.199"
+        return URL(string: "ws://\(ip):8080")!
+    }
+    
+    // Publishers for ViewModel to subscribe to
+    let messageReceived = PassthroughSubject<SignalingMessage, Never>()
+    let isConnected = CurrentValueSubject<Bool, Never>(false)
+    
+    func connect() {
+        print("Connecting to \(serverUrl)...")
+        webSocketTask = urlSession.webSocketTask(with: serverUrl)
+        webSocketTask?.resume()
+        isConnected.send(true) // Optimistic, usually handle with delegate or ping
+        
+        receiveMessage()
+    }
+    
+    func disconnect() {
+        webSocketTask?.cancel(with: .normalClosure, reason: nil)
+        isConnected.send(false)
+    }
+    
+    func send(_ message: SignalingMessage) {
+        do {
+            let data = try JSONEncoder().encode(message)
+            let message = URLSessionWebSocketTask.Message.data(data)
+            webSocketTask?.send(message) { error in
+                if let error = error {
+                    print("Error sending message: \(error)")
+                }
+            }
+        } catch {
+            print("Error encoding message: \(error)")
+        }
+    }
+    
+    private func receiveMessage() {
+        webSocketTask?.receive { [weak self] result in
+            guard let self = self else { return }
+            
+            switch result {
+            case .failure(let error):
+                print("Error receiving message: \(error)")
+                self.isConnected.send(false) 
+                // In production, implement reconnect logic here
+                
+            case .success(let message):
+                switch message {
+                case .string(let text):
+                    self.handleMessageData(text.data(using: .utf8))
+                case .data(let data):
+                    self.handleMessageData(data)
+                @unknown default:
+                    break
+                }
+                
+                // Continue receiving messages
+                self.receiveMessage()
+            }
+        }
+    }
+    
+    private func handleMessageData(_ data: Data?) {
+        guard let data = data else { return }
+        do {
+            let message = try JSONDecoder().decode(SignalingMessage.self, from: data)
+            DispatchQueue.main.async {
+                self.messageReceived.send(message)
+            }
+        } catch {
+            print("Failed to decode message: \(error)")
+            if let str = String(data: data, encoding: .utf8) {
+                print("Raw message: \(str)")
+            }
+        }
+    }
+}
--- a/BeMyEars/BeMyEars/Services/WebRTCService.swift
+++ b/BeMyEars/BeMyEars/Services/WebRTCService.swift
@@ -0,0 +1,343 @@
+import Foundation
+import WebRTC
+import AVFoundation
+import CoreMedia
+#if canImport(UIKit)
+import UIKit
+#endif
+
+protocol WebRTCClientDelegate: AnyObject {
+    func webRTCClient(_ client: WebRTCService, didDiscoverLocalCandidate candidate: RTCIceCandidate)
+    func webRTCClient(_ client: WebRTCService, didChangeConnectionState state: RTCIceConnectionState)
+    func webRTCClient(_ client: WebRTCService, didReceiveData data: Data)
+    func webRTCClient(_ client: WebRTCService, didReceiveRemoteVideoTrack rtcVideoTrack: RTCVideoTrack)
+    func webRTCClient(_ client: WebRTCService, didCreateLocalVideoTrack rtcVideoTrack: RTCVideoTrack)
+}
+
+class WebRTCService: NSObject {
+    
+    // MARK: - Properties
+    weak var delegate: WebRTCClientDelegate?
+    private let factory: RTCPeerConnectionFactory
+    private var peerConnection: RTCPeerConnection?
+    private var videoCapturer: RTCVideoCapturer? // Keep reference to prevent deallocation
+    private var videoSource: RTCVideoSource? // Keep reference to ensure delegate remains valid
+
+    override init() {
+        RTCInitializeSSL()
+        let videoEncoderFactory = RTCDefaultVideoEncoderFactory()
+        let videoDecoderFactory = RTCDefaultVideoDecoderFactory()
+        self.factory = RTCPeerConnectionFactory(encoderFactory: videoEncoderFactory, decoderFactory: videoDecoderFactory)
+        
+        // Fix Audio Session with Robust Activation
+        // Fix Audio Session with Robust Activation
+        let audioSession = RTCAudioSession.sharedInstance()
+        audioSession.lockForConfiguration()
+        do {
+            try audioSession.setCategory(AVAudioSession.Category.playAndRecord)
+            try audioSession.setMode(AVAudioSession.Mode.videoChat)
+            try audioSession.setActive(true)
+        } catch {
+            print("[WebRTC] AudioSession Configuration Error: \(error)")
+        }
+        audioSession.unlockForConfiguration()
+    }
+    
+    // MARK: - Signalling
+    func createOffer(completion: @escaping (RTCSessionDescription) -> Void) {
+        let constraints = RTCMediaConstraints(mandatoryConstraints: [
+            "OfferToReceiveAudio": "true",
+            "OfferToReceiveVideo": "true"
+        ], optionalConstraints: nil)
+        
+        self.peerConnection?.offer(for: constraints, completionHandler: { (sdp, error) in
+            if let error = error {
+                print("[WebRTC] Failed to create offer: \(error)")
+                return
+            }
+            guard let sdp = sdp else { return }
+            print("[WebRTC] Created Offer")
+            self.peerConnection?.setLocalDescription(sdp, completionHandler: { (error) in
+                if let error = error { print("[WebRTC] Failed to set local offer: \(error)") }
+                completion(sdp)
+            })
+        })
+    }
+    
+    func createAnswer(completion: @escaping (RTCSessionDescription) -> Void) {
+        let constraints = RTCMediaConstraints(mandatoryConstraints: [
+            "OfferToReceiveAudio": "true",
+            "OfferToReceiveVideo": "true"
+        ], optionalConstraints: nil)
+        
+        self.peerConnection?.answer(for: constraints, completionHandler: { (sdp, error) in
+            if let error = error {
+                print("[WebRTC] Failed to create answer: \(error)")
+                return
+            }
+            guard let sdp = sdp else { return }
+            print("[WebRTC] Created Answer")
+            self.peerConnection?.setLocalDescription(sdp, completionHandler: { (error) in
+                if let error = error { print("[WebRTC] Failed to set local answer: \(error)") }
+                completion(sdp)
+            })
+        })
+    }
+    
+    func setRemoteDescription(sdp: RTCSessionDescription, completion: @escaping (Error?) -> Void) {
+        print("[WebRTC] Setting Remote Description: \(sdp.type == .offer ? "OFFER" : "ANSWER")")
+        self.peerConnection?.setRemoteDescription(sdp, completionHandler: { error in
+            if let error = error { print("[WebRTC] Remote Desc Error: \(error)") }
+            completion(error)
+        })
+    }
+    
+    func setLocalDescription(sdp: RTCSessionDescription, completion: @escaping (Error?) -> Void) {
+        self.peerConnection?.setLocalDescription(sdp, completionHandler: completion)
+    }
+    
+    func addCandidate(_ candidate: RTCIceCandidate) {
+        self.peerConnection?.add(candidate) { error in
+            if let error = error {
+                print("Failed to add ICE candidate: \(error)")
+            }
+        }
+    }
+    
+    // MARK: - Connection
+    func setup(turnServers: [String] = [], username: String? = nil, credential: String? = nil) {
+        let config = RTCConfiguration()
+        
+        var iceServers = [RTCIceServer]()
+        // STUN (Default Google for POC)
+        iceServers.append(RTCIceServer(urlStrings: ["stun:stun.l.google.com:19302"]))
+        
+        // TURN (from backend)
+        if !turnServers.isEmpty {
+            let turnServer = RTCIceServer(urlStrings: turnServers, username: username ?? "", credential: credential ?? "")
+            iceServers.append(turnServer)
+        }
+        
+        config.iceServers = iceServers
+        config.sdpSemantics = .unifiedPlan
+        // config.certificate = RTCCertificate.generate(withParams: ["expires": 100000]) // Optional
+        
+        let constraints = RTCMediaConstraints(mandatoryConstraints: nil, optionalConstraints: ["DtlsSrtpKeyAgreement": "true"])
+        
+        self.peerConnection = self.factory.peerConnection(with: config, constraints: constraints, delegate: self)
+        
+        // Add local media stream
+        self.startCaptureLocalVideo()
+    }
+    
+    func disconnect() {
+        self.peerConnection?.close()
+        self.peerConnection = nil
+        self.videoCapturer = nil
+    }
+    
+    // MARK: - Media
+    private func startCaptureLocalVideo() {
+        // Create and retain video source
+        let source = self.factory.videoSource()
+        self.videoSource = source
+        
+        #if targetEnvironment(simulator)
+            print("Simulator: Camera capture not supported")
+        #else
+            // Check Permissions
+            let authStatus = AVCaptureDevice.authorizationStatus(for: .video)
+            print("[WebRTC] Camera Permission Status: \(authStatus.rawValue) (3=Authorized, 0=NotDetermined, 2=Denied)")
+            if authStatus != .authorized {
+                print("[WebRTC] ⚠️ WARNING: Camera access not authorized!")
+            }
+
+            let capturer = RTCCameraVideoCapturer(delegate: source)
+            self.videoCapturer = capturer
+            
+            // CRITICAL FIX: The session default preset locks the format.
+            // iPad Pros often require High preset and reject VGA.
+            // iPad Minis might reject High and crash on InputPriority.
+            // We must set the preset AFTER startCapture because startCapture resets it to InputPriority.
+             capturer.captureSession.beginConfiguration()
+             // Just commit what we have (likely InputPriority default) to clear state if needed?
+             // Actually, do nothing here. Let startCapture do its thing, then override.
+             capturer.captureSession.commitConfiguration()
+
+            // Observe Session Errors
+            NotificationCenter.default.addObserver(forName: .AVCaptureSessionRuntimeError, object: capturer.captureSession, queue: .main) { notification in
+                let error = notification.userInfo?[AVCaptureSessionErrorKey] as? Error
+                print("[WebRTC] ❌ Capture Session Runtime Error: \(String(describing: error))")
+            }
+            
+            NotificationCenter.default.addObserver(forName: .AVCaptureSessionWasInterrupted, object: capturer.captureSession, queue: .main) { notification in
+                let reason = notification.userInfo?[AVCaptureSessionInterruptionReasonKey] as? Int
+                print("[WebRTC] ⚠️ Capture Session Interrupted. Reason Code: \(String(describing: reason))")
+            }
+            
+            // Find front camera
+            let devices = RTCCameraVideoCapturer.captureDevices()
+            if let frontCamera = devices.first(where: { $0.position == .front }) {
+                
+                let formats = RTCCameraVideoCapturer.supportedFormats(for: frontCamera)
+                let targetWidth: Int32 = 1920 // Target 1080p
+                let targetHeight: Int32 = 1080
+                let targetFps: Float64 = 30.0
+                
+                var selectedFormat: AVCaptureDevice.Format?
+                var currentDiff = Int32.max
+                
+                for format in formats {
+                    let dimension = CMVideoFormatDescriptionGetDimensions(format.formatDescription)
+                    let diff = abs(dimension.width - targetWidth) + abs(dimension.height - targetHeight)
+                    
+                    // Verify FPS support
+                    var supportsFps = false
+                    for range in format.videoSupportedFrameRateRanges {
+                        if range.minFrameRate <= targetFps && range.maxFrameRate >= targetFps {
+                            supportsFps = true
+                            break
+                        }
+                    }
+                    
+                    // On iPad Mini, 1280x960 (4:3) crashes with InputPriority (and even High in some cases).
+                    // We prefer 16:9 formats (1920x1080, 1280x720) which are safer.
+                    // If the found format is 4:3 but not 640x480, it might be unstable.
+                    
+                    let pixelCount = dimension.width * dimension.height
+                    // Prefer 720p or 1080p if available
+                    let isSafeRatio = (Double(dimension.width) / Double(dimension.height) > 1.7) // ~16:9
+                    
+                    if supportsFps && diff < currentDiff {
+                        // If we are about to pick a 4:3 format >= 960p, ensure it's absolutely necessary or we prefer a safer one?
+                        // Better heuristic: Just strictly target 720p if 1080p is not found.
+                        
+                        selectedFormat = format
+                        currentDiff = diff
+                    }
+                    
+                    // FIX: Force override if we find exact 1280x720 or 1920x1080
+                    if supportsFps {
+                       if dimension.width == 1920 && dimension.height == 1080 {
+                           selectedFormat = format
+                           currentDiff = 0
+                           break
+                       }
+                       if dimension.width == 1280 && dimension.height == 720 {
+                           // If our current selection is 1280x960 (diff ~760), this 720p (diff ~ 640+360=1000) is technically "further" from 1080p but SAFE.
+                           // Actually 1280-1920=640, 720-1080=360 -> diff 1000.
+                           // 1280-1920=640, 960-1080=120 -> diff 760.
+                           // The math prefers 1280x960 (closer to 1080p). We need to intervene.
+                           
+                           // Store 720p as a strong candidate overriding "closer" but dangerous formats
+                           selectedFormat = format
+                           currentDiff = 0 // "Fake" perfect match to stop searching or prefer this
+                       }
+                    }
+                }
+                
+                if let format = selectedFormat {
+                    DispatchQueue.main.async {
+                        capturer.startCapture(with: frontCamera, format: format, fps: Int(targetFps))
+                        
+                        // Force Preset Override for iPad Mini / Pro stability
+                        // WebRTC defaults to InputPriority, which crashes some iPads with specific formats.
+                        capturer.captureSession.beginConfiguration()
+                        let targetPresets: [AVCaptureSession.Preset] = [.high, .medium, .low]
+                        for preset in targetPresets {
+                            if capturer.captureSession.canSetSessionPreset(preset) {
+                                capturer.captureSession.sessionPreset = preset
+                                print("[WebRTC] Post-Capture Override: Set Session Preset to \(preset.rawValue)")
+                                break
+                            }
+                        }
+                        capturer.captureSession.commitConfiguration()
+                        
+                        // Adapt output to save bandwidth AFTER capture starts (WebRTC scaling)
+                        // Adapt output to save bandwidth AFTER capture starts (WebRTC scaling)
+                        var targetWidth: Int32 = 1280
+                        var targetHeight: Int32 = 720
+                        
+                        #if canImport(UIKit)
+                        if UIDevice.current.userInterfaceIdiom == .pad {
+                            let bounds = UIScreen.main.nativeBounds
+                            let width = CGFloat(bounds.width)
+                            let height = CGFloat(bounds.height)
+                            // Determine aspect ratio based on physical pixels (usually portrait orientation for nativeBounds)
+                            let maxDim = max(width, height)
+                            let minDim = min(width, height)
+                            let ratio = maxDim / minDim
+                            
+                            // "Feed the beast" - Maintain higher quality/correct aspect for iPads
+                            // Use 1080 as the base height (or similar) to keep quality high
+                            // Example: 4:3 -> 1440x1080
+                            targetHeight = 1080
+                            targetWidth = Int32(CGFloat(targetHeight) * ratio)
+                            
+                            // Ensure even dimensions
+                            if targetWidth % 2 != 0 { targetWidth += 1 }
+                            
+                            print("[WebRTC] iPad detected. Adapted output to: \(targetWidth)x\(targetHeight) for ratio \(ratio)")
+                        }
+                        #endif
+                        
+                        self.videoSource?.adaptOutputFormat(toWidth: targetWidth, height: targetHeight, fps: 30)
+                        
+                        print("[WebRTC] Capture started: \(CMVideoFormatDescriptionGetDimensions(format.formatDescription)) @ \(targetFps)fps")
+                    }
+                } else if let fallback = formats.last {
+                     // Last resort
+                     DispatchQueue.main.async {
+                         capturer.startCapture(with: frontCamera, format: fallback, fps: 30)
+                         print("[WebRTC] Requested Capture at Fallback: \(CMVideoFormatDescriptionGetDimensions(fallback.formatDescription))")
+                     }
+                }
+            } else {
+                print("No front camera found")
+            }
+        #endif
+
+        guard let source = self.videoSource else { return }
+        let videoTrack = self.factory.videoTrack(with: source, trackId: "video0")
+        
+        self.peerConnection?.add(videoTrack, streamIds: ["stream0"])
+        
+        // Notify delegate to show local video
+        self.delegate?.webRTCClient(self, didCreateLocalVideoTrack: videoTrack)
+    }
+}
+
+// MARK: - RTCPeerConnectionDelegate
+extension WebRTCService: RTCPeerConnectionDelegate {
+    func peerConnection(_ peerConnection: RTCPeerConnection, didChange stateChanged: RTCSignalingState) {}
+    
+    func peerConnection(_ peerConnection: RTCPeerConnection, didAdd stream: RTCMediaStream) {}
+    
+    func peerConnection(_ peerConnection: RTCPeerConnection, didRemove stream: RTCMediaStream) {}
+    
+    func peerConnectionShouldNegotiate(_ peerConnection: RTCPeerConnection) {}
+    
+    func peerConnection(_ peerConnection: RTCPeerConnection, didChange newState: RTCIceConnectionState) {
+        self.delegate?.webRTCClient(self, didChangeConnectionState: newState)
+    }
+    
+    func peerConnection(_ peerConnection: RTCPeerConnection, didChange newState: RTCIceGatheringState) {}
+    
+    func peerConnection(_ peerConnection: RTCPeerConnection, didGenerate candidate: RTCIceCandidate) {
+        self.delegate?.webRTCClient(self, didDiscoverLocalCandidate: candidate)
+    }
+    
+    func peerConnection(_ peerConnection: RTCPeerConnection, didRemove candidates: [RTCIceCandidate]) {}
+    
+    func peerConnection(_ peerConnection: RTCPeerConnection, didOpen dataChannel: RTCDataChannel) {}
+    
+    // Modern Unified Plan uses Track events
+    func peerConnection(_ peerConnection: RTCPeerConnection, didStartReceivingOn transceiver: RTCRtpTransceiver) {
+        print("[WebRTC] didStartReceivingOn transceiver: \(transceiver.mediaType == .video ? "Video" : "Audio")")
+        if transceiver.mediaType == .video, let track = transceiver.receiver.track as? RTCVideoTrack {
+             print("[WebRTC] Received Remote Video Track!")
+             
+             self.delegate?.webRTCClient(self, didReceiveRemoteVideoTrack: track)
+        }
+    }
+}
--- a/BeMyEars/BeMyEars/Utils/NetworkManager.swift
+++ b/BeMyEars/BeMyEars/Utils/NetworkManager.swift
@@ -0,0 +1,29 @@
+import Foundation
+
+struct NetworkManager {
+    static func getLocalIPAddress() -> String? {
+        var address: String?
+        var ifaddr: UnsafeMutablePointer<ifaddrs>?
+        if getifaddrs(&ifaddr) == 0 {
+            var ptr = ifaddr
+            while ptr != nil {
+                defer { ptr = ptr?.pointee.ifa_next }
+                
+                guard let interface = ptr?.pointee else { return nil }
+                let addrFamily = interface.ifa_addr.pointee.sa_family
+                if addrFamily == UInt8(AF_INET) { // IPv4 only
+                    let name: String = String(cString: interface.ifa_name)
+                    if name == "en0" { // Usually WiFi
+                        var hostname = [CChar](repeating: 0, count: Int(NI_MAXHOST))
+                        getnameinfo(interface.ifa_addr, socklen_t(interface.ifa_addr.pointee.sa_len),
+                                    &hostname, socklen_t(hostname.count),
+                                    nil, socklen_t(0), NI_NUMERICHOST)
+                        address = String(cString: hostname)
+                    }
+                }
+            }
+            freeifaddrs(ifaddr)
+        }
+        return address
+    }
+}
--- a/BeMyEars/BeMyEars/ViewModels/CallViewModel.swift
+++ b/BeMyEars/BeMyEars/ViewModels/CallViewModel.swift
@@ -0,0 +1,375 @@
+import Foundation
+import Combine
+import WebRTC
+
+class CallViewModel: ObservableObject {
+    
+    // MARK: - Published State
+    @Published var currentUser: User?
+    @Published var callState: CallState = CallState(status: .idle)
+    @Published var availableInterpreters: [String] = []
+    @Published var interpreterState: PresenceState = .unavailable // Default to unavailable locally
+    
+    // Notification State
+    @Published var remotePeerSeesMe: Bool = false
+    @Published var showVideoVisibleToast: Bool = false
+    
+    // Stats State
+    @Published var onlineInterpretersCount: Int = 0
+    @Published var onlineCallersCount: Int = 0
+    
+    @Published var errorMessage: String?
+    
+    // Abuse Reporting
+    @Published var lastCallId: String?
+    @Published var lastRemoteUser: String?
+    
+    // Services
+    private let signaling: SignalingService
+    private let webRTC: WebRTCService
+    private var cancellables = Set<AnyCancellable>()
+    
+    // WebRTC Data
+    // In a real app, these would be exposed via a VideoView struct dependent on the WebRTC library's rendering
+    @Published var localVideoTrack: RTCVideoTrack?
+    @Published var remoteVideoTrack: RTCVideoTrack?
+    
+    init() {
+        self.signaling = SignalingService()
+        self.webRTC = WebRTCService()
+        
+        setupBindings()
+    }
+    
+    // MARK: - Setup
+    private func setupBindings() {
+        // Signaling - Connection State
+        signaling.isConnected
+            .dropFirst() // Ignore initial 'false' state
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] isConnected in
+                if !isConnected {
+                    self?.errorMessage = "Disconnected from server"
+                    // Handle disconnect state
+                }
+            }
+            .store(in: &cancellables)
+        
+        // Signaling - Messages
+        signaling.messageReceived
+            .receive(on: DispatchQueue.main)
+            .sink { [weak self] msg in
+                self?.handleSignalingMessage(msg)
+            }
+            .store(in: &cancellables)
+            
+        // WebRTC Delegate
+        webRTC.delegate = self
+    }
+    
+    // MARK: - Authentication / Registration
+    func login(username: String, role: Role) {
+        // 1. Optimistically set user so UI transitions immediately
+        self.currentUser = User(username: username, role: role)
+        // Reset interpreter state to unavailable on login/registration to match server default
+        if role == .interpreter {
+            self.interpreterState = .unavailable
+        }
+        
+        // 2. Subscribe to connection status to send REGISTER only when actually connected
+        signaling.isConnected
+            .filter { $0 } // Wait for 'true'
+            .first()       // Do this only once per login call
+            .sink { [weak self] _ in
+                print("Connected! Sending REGISTER for \(username)")
+                let msg = SignalingMessage(type: "REGISTER", callId: nil, from: nil, to: nil, payload: AnyCodable(["username": username, "role": role.rawValue]))
+                self?.signaling.send(msg)
+            }
+            .store(in: &cancellables)
+        
+        // 3. Start connection
+        signaling.connect()
+    }
+    
+    func logout() {
+        signaling.disconnect()
+        currentUser = nil
+        callState = CallState(status: .idle)
+        availableInterpreters = []
+        localVideoTrack = nil
+        remoteVideoTrack = nil
+        errorMessage = nil
+        
+        // Cancel bindings to prevent receiving messages after logout
+        cancellables.removeAll()
+        // Re-setup to be ready for next login
+        setupBindings()
+    }
+    
+    // MARK: - Call Logic (Caller)
+    func callInterpreter(username: String) {
+        guard let myUser = currentUser, myUser.role == .caller else { return }
+        
+        callState = CallState(remoteUser: username, status: .calling)
+        
+        let msg = SignalingMessage(type: "CALL_REQUEST", callId: nil, from: myUser.username, to: username, payload: nil)
+        signaling.send(msg)
+    }
+    
+    // MARK: - Call Logic (Interpreter)
+    func acceptCall() {
+        guard let myUser = currentUser, myUser.role == .interpreter, let callId = callState.callId, let remoteUser = callState.remoteUser else { return }
+        
+        let msg = SignalingMessage(type: "CALL_ACCEPT", callId: callId, from: myUser.username, to: remoteUser, payload: nil)
+        signaling.send(msg)
+        
+        callState.status = .inCall // Transition to In Call
+        startWebRTC(isCaller: false)
+    }
+    
+    func declineCall() {
+        guard let myUser = currentUser, myUser.role == .interpreter, let callId = callState.callId, let remoteUser = callState.remoteUser else { return }
+        
+        let msg = SignalingMessage(type: "CALL_DECLINE", callId: callId, from: myUser.username, to: remoteUser, payload: nil)
+        signaling.send(msg)
+        
+        resetCallState()
+        // Revert to AVAILABLE after declining (or should match server behavior)
+        self.interpreterState = .available
+    }
+    
+    // MARK: - Presence Management
+    func togglePresence() {
+        guard let myUser = currentUser, myUser.role == .interpreter else { return }
+        
+        let newState: PresenceState = (interpreterState == .available) ? .unavailable : .available
+        
+        // Optimistic update
+        self.interpreterState = newState
+        
+        let msg = SignalingMessage(type: "SET_PRESENCE", callId: nil, from: myUser.username, to: nil, payload: AnyCodable(["state": newState.rawValue]))
+        signaling.send(msg)
+    }
+    
+    func reportAbuse(message: String) {
+        guard let myUser = currentUser, myUser.role == .interpreter, let callId = lastCallId, let remoteUser = lastRemoteUser else { return }
+        
+        let msg = SignalingMessage(type: "REPORT_ABUSE", callId: callId, from: myUser.username, to: nil, payload: AnyCodable(["message": message, "offender": remoteUser]))
+        signaling.send(msg)
+        
+        // Clear last call info so button disappears
+        self.lastCallId = nil
+        self.lastRemoteUser = nil
+    }
+    
+    // MARK: - Call Logic (Shared)
+    func hangup() {
+        guard let myUser = currentUser, let callId = callState.callId, let remoteUser = callState.remoteUser else { return }
+        
+        let msg = SignalingMessage(type: "HANGUP", callId: callId, from: myUser.username, to: remoteUser, payload: nil)
+        signaling.send(msg)
+        
+        endCall()
+    }
+    
+    private func endCall() {
+        webRTC.disconnect()
+        resetCallState()
+        remoteVideoTrack = nil
+    }
+    
+    private func resetCallState() {
+        // Save last call info for abuse reporting
+        if let callId = callState.callId, let remoteUser = callState.remoteUser {
+            self.lastCallId = callId
+            self.lastRemoteUser = remoteUser
+        }
+        
+        callState = CallState(status: .idle)
+        remotePeerSeesMe = false
+        showVideoVisibleToast = false
+    }
+    
+    // MARK: - Video Visibility
+    func notifyVideoSeen() {
+        // Send signal to remote peer that we see them
+        guard let callId = callState.callId, let remoteUser = callState.remoteUser, let myUser = currentUser else { return }
+        
+        // Prevent spamming
+        // In a real app we might want to allow this multiple times if video cuts out, but for now once per call is fine
+        // However, this method might be called multiple times by VideoView if resolution changes.
+        // We can debounce or just send it. Let's send it, it's cheap.
+        
+        let msg = SignalingMessage(type: "VIDEO_VISIBLE", callId: callId, from: myUser.username, to: remoteUser, payload: nil)
+        signaling.send(msg)
+    }
+    
+    // MARK: - Signaling Handling
+    private func handleSignalingMessage(_ msg: SignalingMessage) {
+        switch msg.type {
+        case "REGISTER_SUCCESS":
+            break // Already handled optimistically
+            
+        case "PRESENCE_UPDATE":
+             if let payload = msg.payload?.value as? [[String: Any]] {
+                 self.availableInterpreters = payload.compactMap { $0["username"] as? String }
+             }
+             
+        case "STATS_UPDATE":
+             if let payload = msg.payload?.value as? [String: Any],
+                let numInterpreters = payload["interpreters"] as? Int,
+                let numCallers = payload["callers"] as? Int {
+                 DispatchQueue.main.async {
+                     self.onlineInterpretersCount = numInterpreters
+                     self.onlineCallersCount = numCallers
+                 }
+             }
+        // Interpreter Actions
+        case "PRESENCE_CHANGED":
+            if let payload = msg.payload?.value as? [String: Any],
+               let stateStr = payload["state"] as? String,
+               let state = PresenceState(rawValue: stateStr) {
+                self.interpreterState = state
+            }
+            
+        case "CALL_REQUEST":
+            guard currentUser?.role == .interpreter else { return }
+            if let callId = msg.callId, let from = msg.from {
+                self.callState = CallState(callId: callId, remoteUser: from, status: .incoming)
+            }
+            
+        // Caller Actions
+        case "CALL_ACCEPT":
+            if let callId = msg.callId {
+                self.callState.callId = callId
+                self.callState.status = .inCall
+                
+                // Extract TURN config if present
+                if let payload = msg.payload?.value as? [String: Any],
+                   let turn = payload["turnServer"] as? [String: Any] {
+                   // Configure WebRTC with these credentials
+                     let _ = turn // Placeholder usage
+                }
+                
+                startWebRTC(isCaller: true)
+            }
+            
+        case "CALL_DECLINE":
+            resetCallState()
+            errorMessage = "Call declined. Please try another available interpreter."
+            
+        case "BUSY", "TIMEOUT":
+            resetCallState()
+            errorMessage = "\(msg.type): \(msg.payload?.value ?? "")"
+            
+        case "VIDEO_VISIBLE":
+             // Remote peer sees us!
+             DispatchQueue.main.async {
+                 self.remotePeerSeesMe = true
+                 self.showVideoVisibleToast = true
+                 
+                 // Hide toast after 3 seconds
+                 DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
+                     self.showVideoVisibleToast = false
+                 }
+             }
+             
+        case "HANGUP":
+            endCall()
+            
+        // WebRTC Signaling
+        case "OFFER":
+            if let sdpStr = msg.payload?.value as? String {
+                let sdp = RTCSessionDescription(type: .offer, sdp: sdpStr)
+                webRTC.setRemoteDescription(sdp: sdp) { error in
+                    if error == nil {
+                        self.webRTC.createAnswer { answerSdp in
+                            self.webRTC.setLocalDescription(sdp: answerSdp) { _ in
+                                self.sendSDP(answerSdp, type: "ANSWER")
+                            }
+                        }
+                    }
+                }
+            }
+            
+        case "ANSWER":
+             if let sdpStr = msg.payload?.value as? String {
+                let sdp = RTCSessionDescription(type: .answer, sdp: sdpStr)
+                webRTC.setRemoteDescription(sdp: sdp) { _ in }
+             }
+             
+        case "ICE":
+             if let candidateDict = msg.payload?.value as? [String: Any],
+                let sdp = candidateDict["sdp"] as? String,
+                let sdpMLineIndexInt = candidateDict["sdpMLineIndex"] as? Int {
+                 
+                 let sdpMLineIndex = Int32(sdpMLineIndexInt)
+                 let sdpMid = candidateDict["sdpMid"] as? String ?? "" // sdpMid is optional sometimes, good to safely unwrap or default
+                 
+                 let candidate = RTCIceCandidate(sdp: sdp, sdpMLineIndex: sdpMLineIndex, sdpMid: sdpMid)
+                 webRTC.addCandidate(candidate)
+             }
+            
+        default:
+            print("Unhandled message: \(msg.type)")
+        }
+    }
+    
+    // MARK: - WebRTC Orchestration
+    private func startWebRTC(isCaller: Bool) {
+        // In production, pass TURN creds here
+        webRTC.setup(turnServers: ["turn:turn.jaredlog.com:3478"], username: "user", credential: "password")
+        
+        if isCaller {
+            webRTC.createOffer { sdp in
+                self.webRTC.setLocalDescription(sdp: sdp) { error in
+                    if error == nil {
+                        self.sendSDP(sdp, type: "OFFER")
+                    }
+                }
+            }
+        }
+    }
+    
+    private func sendSDP(_ sdp: RTCSessionDescription, type: String) {
+        guard let callId = callState.callId, let remoteUser = callState.remoteUser, let myUser = currentUser else { return }
+        let msg = SignalingMessage(type: type, callId: callId, from: myUser.username, to: remoteUser, payload: AnyCodable(sdp.sdp))
+        signaling.send(msg)
+    }
+}
+
+// MARK: - WebRTC Delegate
+extension CallViewModel: WebRTCClientDelegate {
+    func webRTCClient(_ client: WebRTCService, didDiscoverLocalCandidate candidate: RTCIceCandidate) {
+        guard let callId = callState.callId, let remoteUser = callState.remoteUser, let myUser = currentUser else { return }
+        
+        let candidateDict: [String: Any] = [
+            "sdp": candidate.sdp,
+            "sdpMLineIndex": candidate.sdpMLineIndex,
+            "sdpMid": candidate.sdpMid ?? ""
+        ]
+        
+        let msg = SignalingMessage(type: "ICE", callId: callId, from: myUser.username, to: remoteUser, payload: AnyCodable(candidateDict))
+        signaling.send(msg)
+    }
+    
+    func webRTCClient(_ client: WebRTCService, didChangeConnectionState state: RTCIceConnectionState) {
+        // Handle connection state changes (connecting, connected, disconnected, failed)
+    }
+    
+    func webRTCClient(_ client: WebRTCService, didReceiveData data: Data) {
+        // Handle data channel
+    }
+    
+    func webRTCClient(_ client: WebRTCService, didReceiveRemoteVideoTrack rtcVideoTrack: RTCVideoTrack) {
+        DispatchQueue.main.async {
+            self.remoteVideoTrack = rtcVideoTrack
+        }
+    }
+    
+    func webRTCClient(_ client: WebRTCService, didCreateLocalVideoTrack rtcVideoTrack: RTCVideoTrack) {
+        DispatchQueue.main.async {
+            self.localVideoTrack = rtcVideoTrack
+        }
+    }
+}
--- a/BeMyEars/BeMyEars/Views/CallView.swift
+++ b/BeMyEars/BeMyEars/Views/CallView.swift
@@ -0,0 +1,85 @@
+import SwiftUI
+import WebRTC
+
+struct CallView: View {
+    @EnvironmentObject var viewModel: CallViewModel
+    
+    var body: some View {
+        ZStack {
+            Color.black.edgesIgnoringSafeArea(.all)
+            
+            // Remote Video (Full Screen)
+            // Remote Video (Full Screen)
+            if let remoteTrack = viewModel.remoteVideoTrack {
+                VideoView(track: remoteTrack, onRenderStart: {
+                    print("Remote video is visible! Notifying peer...")
+                    viewModel.notifyVideoSeen()
+                })
+                    .edgesIgnoringSafeArea(.all)
+            } else {
+                Text("Waiting for video...")
+                    .foregroundColor(.white)
+            }
+            
+            // Local Video (PiP)
+            VStack {
+                HStack {
+                    Spacer()
+                    // Local Video
+                    if let localTrack = viewModel.localVideoTrack {
+                         VideoView(track: localTrack)
+                            .frame(width: 100, height: 150)
+                            .cornerRadius(8)
+                            .padding()
+                            .shadow(radius: 5)
+                    } else {
+                        Rectangle()
+                            .fill(Color.gray)
+                            .frame(width: 100, height: 150)
+                            .overlay(Text("Local").foregroundColor(.white))
+                            .cornerRadius(8)
+                            .padding()
+                    }
+                }
+                Spacer()
+            }
+            
+            // Controls
+            VStack {
+                 // Toast Notification
+                 if viewModel.showVideoVisibleToast {
+                     Text("Your video now visible on the other end.")
+                         .font(.callout)
+                         .padding(10)
+                         .background(Color.black.opacity(0.7))
+                         .foregroundColor(.white)
+                         .cornerRadius(8)
+                         .padding(.top, 50)
+                         .transition(.opacity)
+                         .animation(.easeInOut, value: viewModel.showVideoVisibleToast)
+                 }
+                
+                Spacer()
+                Button(action: {
+                    viewModel.hangup()
+                }) {
+                    Image(systemName: "phone.down.fill")
+                        .font(.title)
+                        .padding()
+                        .background(Color.red)
+                        .foregroundColor(.white)
+                        .clipShape(Circle())
+                }
+                .padding(.bottom, 50)
+            }
+        }
+        .onAppear {
+            // Force keyboard dismissal
+            UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
+        }
+        .ignoresSafeArea(.keyboard)
+    }
+}
+
+// NOTE: To make video render, you need a SwiftUI wrapper around RTCMTLVideoView.
+// This is non-trivial boilerplate that depends on the specific WebRTC package structure.
--- a/BeMyEars/BeMyEars/Views/DashboardView.swift
+++ b/BeMyEars/BeMyEars/Views/DashboardView.swift
@@ -0,0 +1,141 @@
+import SwiftUI
+
+struct DashboardView: View {
+    @EnvironmentObject var viewModel: CallViewModel
+    @State private var showAbuseReportSheet = false
+    @State private var abuseMessage = ""
+    
+    var body: some View {
+        VStack {
+            HStack {
+                Text("Hello, \(viewModel.currentUser?.username ?? "")")
+                    .font(.headline)
+                Spacer()
+                Button("Logout") {
+                    viewModel.logout()
+                }
+                .foregroundColor(.red)
+            }
+            .padding()
+            
+            if viewModel.currentUser?.role == .interpreter {
+                Text("Online: \(viewModel.onlineInterpretersCount) terps. \(viewModel.onlineCallersCount) users.")
+                    .font(.subheadline)
+                    .foregroundColor(.secondary)
+                    .padding(.bottom, 5)
+            }
+            
+            Divider()
+            
+            if viewModel.currentUser?.role == .caller {
+                if viewModel.availableInterpreters.isEmpty {
+                    VStack {
+                        Spacer()
+                        Text("No interpreters online")
+                            .foregroundColor(.secondary)
+                        Spacer()
+                    }
+                } else {
+                    List(viewModel.availableInterpreters, id: \.self) { interpreterName in
+                        HStack {
+                            Text(interpreterName)
+                            Spacer()
+                            Button("Call") {
+                                viewModel.callInterpreter(username: interpreterName)
+                            }
+                            .buttonStyle(.borderedProminent)
+                        }
+                    }
+                }
+            } else {
+                // Interpreter View
+                VStack(spacing: 20) {
+                    Spacer()
+                    Image(systemName: viewModel.interpreterState == .available ? "phone.badge.checkmark" : "phone.badge.slash")
+                        .font(.system(size: 50))
+                        .foregroundColor(viewModel.interpreterState == .available ? .green : .gray)
+                    
+                    Text(viewModel.interpreterState == .available ? "Online & Waiting for Calls" : "You are currently offline")
+                        .font(.title2)
+                        .foregroundColor(viewModel.interpreterState == .available ? .green : .secondary)
+
+                    Button(action: {
+                        viewModel.togglePresence()
+                    }) {
+                        Text(viewModel.interpreterState == .available ? "Go Offline" : "Go Online")
+                            .font(.headline)
+                            .frame(maxWidth: .infinity)
+                            .padding()
+                            .background(viewModel.interpreterState == .available ? Color.gray : Color.green)
+                            .foregroundColor(.white)
+                            .cornerRadius(10)
+                    }
+                    .padding(.horizontal, 40)
+                    
+                    if viewModel.lastCallId != nil {
+                        Button(action: {
+                            abuseMessage = ""
+                            showAbuseReportSheet = true
+                        }) {
+                            Text("Report Abuse")
+                                .font(.headline)
+                                .foregroundColor(.red)
+                                .padding()
+                        }
+                    }
+                    
+                    Spacer()
+                }
+            }
+        }
+        .sheet(isPresented: $showAbuseReportSheet) {
+            NavigationView {
+                VStack {
+                    Text("Report Abuse")
+                        .font(.headline)
+                        .padding()
+                    
+                    Text("Please describe the issue (max 100 chars):")
+                        .font(.subheadline)
+                        .foregroundColor(.secondary)
+                    
+                    TextEditor(text: $abuseMessage)
+                        .frame(height: 100)
+                        .overlay(RoundedRectangle(cornerRadius: 8).stroke(Color.gray.opacity(0.5)))
+                        .padding()
+                        .onChange(of: abuseMessage) { _, newValue in
+                            if newValue.count > 100 {
+                                abuseMessage = String(newValue.prefix(100))
+                            }
+                        }
+                    
+                    Spacer()
+                    
+                    Button("Submit Report") {
+                        if !abuseMessage.isEmpty {
+                            viewModel.reportAbuse(message: abuseMessage)
+                            showAbuseReportSheet = false
+                        }
+                    }
+                    .font(.headline)
+                    .foregroundColor(.white)
+                    .padding()
+                    .frame(maxWidth: .infinity)
+                    .background(Color.red)
+                    .cornerRadius(10)
+                    .padding()
+                    .disabled(abuseMessage.isEmpty)
+                }
+                .navigationBarTitleDisplayMode(.inline)
+                .toolbar {
+                    ToolbarItem(placement: .cancellationAction) {
+                        Button("Cancel") {
+                            showAbuseReportSheet = false
+                        }
+                    }
+                }
+            }
+            .presentationDetents([.medium])
+        }
+    }
+}
--- a/BeMyEars/BeMyEars/Views/IncomingCallView.swift
+++ b/BeMyEars/BeMyEars/Views/IncomingCallView.swift
@@ -0,0 +1,46 @@
+import SwiftUI
+
+struct IncomingCallView: View {
+    @EnvironmentObject var viewModel: CallViewModel
+    
+    var body: some View {
+        VStack(spacing: 30) {
+            Text("Incoming Call")
+                .font(.largeTitle)
+                .fontWeight(.bold)
+            
+            Text("from \(viewModel.callState.remoteUser ?? "Unknown")")
+                .font(.title)
+            
+            HStack(spacing: 40) {
+                Button(action: {
+                    viewModel.declineCall()
+                }) {
+                    VStack {
+                        Image(systemName: "phone.down.fill")
+                            .font(.largeTitle)
+                            .padding()
+                            .background(Color.red)
+                            .foregroundColor(.white)
+                            .clipShape(Circle())
+                        Text("Decline")
+                    }
+                }
+                
+                Button(action: {
+                    viewModel.acceptCall()
+                }) {
+                    VStack {
+                        Image(systemName: "phone.fill")
+                            .font(.largeTitle)
+                            .padding()
+                            .background(Color.green)
+                            .foregroundColor(.white)
+                            .clipShape(Circle())
+                        Text("Accept")
+                    }
+                }
+            }
+        }
+    }
+}
--- a/BeMyEars/BeMyEars/Views/LoginView.swift
+++ b/BeMyEars/BeMyEars/Views/LoginView.swift
@@ -0,0 +1,109 @@
+import SwiftUI
+
+struct LoginView: View {
+    @EnvironmentObject var viewModel: CallViewModel
+    @State private var username: String = "Jared"
+    @State private var selectedRole: Role = .caller
+    @State private var serverIp: String = ""
+    @State private var isServerFound: Bool = false
+    @StateObject private var bonjourService = BonjourService()
+    
+    var body: some View {
+        VStack(spacing: 20) {
+            Text("BeMyEars")
+                .font(.largeTitle)
+                .fontWeight(.bold)
+            
+            TextField("Username", text: $username)
+                .textFieldStyle(RoundedBorderTextFieldStyle())
+                .autocapitalization(.none)
+                .padding()
+            
+            HStack(spacing: 0) {
+                Button(action: { selectedRole = .caller }) {
+                    Text("Caller (Deaf User)")
+                        .font(.subheadline)
+                        .padding(.vertical, 10)
+                        .frame(maxWidth: .infinity)
+                        .background(selectedRole == .caller ? Color.blue : Color.gray.opacity(0.2))
+                        .foregroundColor(selectedRole == .caller ? .white : .primary)
+                }
+                
+                Button(action: { selectedRole = .interpreter }) {
+                    Text("Interpreter")
+                        .font(.subheadline)
+                        .padding(.vertical, 10)
+                        .frame(maxWidth: .infinity)
+                        .background(selectedRole == .interpreter ? Color.blue : Color.gray.opacity(0.2))
+                        .foregroundColor(selectedRole == .interpreter ? .white : .primary)
+                }
+            }
+            .cornerRadius(8)
+            .padding()
+            .onChange(of: selectedRole) { _, newRole in
+                if newRole == .caller {
+                    username = "Jared"
+                } else {
+                    username = "Terp_01"
+                }
+            }
+            
+            Button(action: {
+                guard !username.isEmpty else { return }
+                
+                // Save Server IP
+                if !serverIp.isEmpty {
+                    UserDefaults.standard.set(serverIp, forKey: "server_ip")
+                }
+                
+                viewModel.login(username: username, role: selectedRole)
+            }) {
+                Text("Join")
+                    .font(.headline)
+                    .foregroundColor(.white)
+                    .padding()
+                    .frame(maxWidth: .infinity)
+                    .background(Color.red)
+                    .cornerRadius(10)
+            }
+            .padding()
+            
+            Spacer()
+            
+            VStack(alignment: .leading, spacing: 5) {
+                Text(isServerFound ? "Backend Server IP was found." : "Backend Server IP")
+                    .font(.caption)
+                    .foregroundColor(isServerFound ? .green : .gray)
+                TextField("Server IP", text: $serverIp)
+                    .textFieldStyle(RoundedBorderTextFieldStyle())
+                    .keyboardType(.numbersAndPunctuation)
+            }
+            .padding(.horizontal)
+            .padding(.bottom)
+        }
+        .padding()
+        .onAppear {
+            bonjourService.start()
+            
+            if let savedIp = UserDefaults.standard.string(forKey: "server_ip") {
+                serverIp = savedIp
+            } else if let localIp = NetworkManager.getLocalIPAddress() {
+                // Try to predict server IP based on local IP (same subnet)
+                // e.g. 192.168.1.x -> 192.168.1.
+                var components = localIp.split(separator: ".")
+                if components.count == 4 {
+                    components.removeLast()
+                    serverIp = components.joined(separator: ".") + "."
+                } else {
+                    serverIp = localIp
+                }
+            }
+        }
+        .onReceive(bonjourService.$foundServer) { found in
+            if let found = found {
+                serverIp = found
+                isServerFound = true
+            }
+        }
+    }
+}
--- a/BeMyEars/BeMyEars/Views/VideoView.swift
+++ b/BeMyEars/BeMyEars/Views/VideoView.swift
@@ -0,0 +1,51 @@
+import SwiftUI
+import WebRTC
+
+// Wraps RTCMTLVideoView for SwiftUI
+struct VideoView: UIViewRepresentable {
+    let track: RTCVideoTrack?
+    var onRenderStart: (() -> Void)? = nil // Callback for when video starts rendering
+    
+    func makeUIView(context: Context) -> RTCMTLVideoView {
+        let videoView = RTCMTLVideoView(frame: .zero)
+        videoView.videoContentMode = .scaleAspectFill
+        videoView.delegate = context.coordinator // Set delegate
+        return videoView
+    }
+    
+    func updateUIView(_ uiView: RTCMTLVideoView, context: Context) {
+        // If track changed, we need to re-hook
+        if let track = track {
+            track.add(uiView)
+        } else {
+            // Optional: clear view if track is nil
+        }
+    }
+    
+    func makeCoordinator() -> Coordinator {
+        Coordinator(self)
+    }
+    
+    class Coordinator: NSObject, RTCVideoViewDelegate {
+        var parent: VideoView
+        var hasNotifiedRender = false
+        
+        init(_ parent: VideoView) {
+            self.parent = parent
+        }
+        
+        func videoView(_ videoView: RTCVideoRenderer, didChangeVideoSize size: CGSize) {
+            // This delegate method is called when the first frame is received and dimensions are known.
+            // It's a good proxy for "Video is visible now"
+            
+            if !hasNotifiedRender && size.width > 0 && size.height > 0 {
+                print("[VideoView] Video rendering started with size: \(size)")
+                hasNotifiedRender = true
+                
+                DispatchQueue.main.async {
+                    self.parent.onRenderStart?()
+                }
+            }
+        }
+    }
+}
--- a/BeMyEars/BeMyEarsApp.swift
+++ b/BeMyEars/BeMyEarsApp.swift
@@ -0,0 +1,13 @@
+import SwiftUI
+
+@main
+struct BeMyEarsApp: App {
+    @StateObject private var viewModel = CallViewModel()
+    
+    var body: some Scene {
+        WindowGroup {
+            ContentView()
+                .environmentObject(viewModel)
+        }
+    }
+}
--- a/BeMyEars/ContentView.swift
+++ b/BeMyEars/ContentView.swift
@@ -0,0 +1,43 @@
+import SwiftUI
+
+struct ContentView: View {
+    @EnvironmentObject var viewModel: CallViewModel
+    
+    var body: some View {
+        Group {
+            if viewModel.currentUser == nil {
+                LoginView()
+            } else {
+                switch viewModel.callState.status {
+                case .incoming:
+                    IncomingCallView()
+                case .inCall, .connecting:
+                    CallView()
+                default:
+                    DashboardView()
+                }
+            }
+        }
+        .overlay(
+            Group {
+                if let error = viewModel.errorMessage {
+                    VStack {
+                        Text(error)
+                            .foregroundColor(.red)
+                            .padding()
+                            .background(Color(UIColor.systemBackground))
+                            .cornerRadius(10)
+                            .shadow(radius: 5)
+                    }
+                    .padding()
+                    .transition(.move(edge: .top))
+                    .onAppear {
+                        DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
+                            viewModel.errorMessage = nil
+                        }
+                    }
+                }
+            }, alignment: .top
+        )
+    }
+}
--- a/PartialInfo.plist
+++ b/PartialInfo.plist
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleDevelopmentRegion</key>
+    <string>$(DEVELOPMENT_LANGUAGE)</string>
+    <key>CFBundleExecutable</key>
+    <string>$(EXECUTABLE_NAME)</string>
+    <key>CFBundleIdentifier</key>
+    <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+    <key>CFBundleInfoDictionaryVersion</key>
+    <string>6.0</string>
+    <key>CFBundleName</key>
+    <string>$(PRODUCT_NAME)</string>
+    <key>CFBundlePackageType</key>
+    <string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
+    <key>CFBundleShortVersionString</key>
+    <string>1.0</string>
+    <key>CFBundleVersion</key>
+    <string>1</string>
+    <key>LSRequiresIPhoneOS</key>
+    <true/>
+    <key>UIApplicationSceneManifest</key>
+    <dict>
+        <key>UIApplicationSupportsMultipleScenes</key>
+        <true/>
+        <key>UISceneConfigurations</key>
+        <dict/>
+    </dict>
+    <key>UIApplicationSupportsIndirectInputEvents</key>
+    <true/>
+    <key>UILaunchScreen</key>
+    <dict/>
+    <key>UISupportedInterfaceOrientations</key>
+    <array>
+        <string>UIInterfaceOrientationPortrait</string>
+        <string>UIInterfaceOrientationLandscapeLeft</string>
+        <string>UIInterfaceOrientationLandscapeRight</string>
+    </array>
+    <key>UISupportedInterfaceOrientations~ipad</key>
+    <array>
+        <string>UIInterfaceOrientationPortrait</string>
+        <string>UIInterfaceOrientationPortraitUpsideDown</string>
+        <string>UIInterfaceOrientationLandscapeLeft</string>
+        <string>UIInterfaceOrientationLandscapeRight</string>
+    </array>
+    <key>NSCameraUsageDescription</key>
+    <string>BeMyEars needs camera access for video calls.</string>
+    <key>NSMicrophoneUsageDescription</key>
+    <string>BeMyEars needs microphone access for video calls.</string>
+    <key>NSLocalNetworkUsageDescription</key>
+    <string>BeMyEars uses the local network to discover the backend server.</string>
+    <key>NSBonjourServices</key>
+    <array>
+        <string>_bemyears._tcp</string>
+    </array>
+</dict>
+</plist>
--- a/6
+++ b/6
@@ -0,0 +1,6 @@
+platform :ios, '18.6'
+use_frameworks!
+
+target 'BeMyEars' do
+  pod 'WebRTC-SDK'
+end
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -0,0 +1,16 @@
+PODS:
+  - WebRTC-SDK (137.7151.11)
+
+DEPENDENCIES:
+  - WebRTC-SDK
+
+SPEC REPOS:
+  trunk:
+    - WebRTC-SDK
+
+SPEC CHECKSUMS:
+  WebRTC-SDK: 02622170bcaa1ea06008e2c8f4496a3c6db2413f
+
+PODFILE CHECKSUM: 39ea3921fa62040a6e4b43f10539c262c91a6fc4
+
+COCOAPODS: 1.16.2
--- a/README.md
+++ b/README.md
@@ -0,0 +1,57 @@
+# BeMyEars 👂
+
+**BeMyEars** is a real-time video communication platform designed to bridge the gap between **Deaf/Hard of Hearing (HoH)** individuals and **Sign Language Interpreters**.
+
+The application provides a seamless, one-to-one video chat experience, allowing Deaf users to instantly request assistance for daily tasks, conversations, or minor emergencies, and enabling Interpreters to provide remote support.
+
+---
+
+## 👥 User Roles & Experience
+
+### For Deaf / Hard of Hearing Users
+*   **Purpose**: Get on-demand access to a visual interpreter.
+*   **What to Expect**:
+    *   **Dashboard**: A clear list of currently available (online) Interpreters.
+    *   **One-Tap Calling**: Simply tap an Interpreter's name to initiate a video call.
+    *   **High-Quality Video**: Optimized video connection (up to 1080p) to ensure sign language and facial expressions are clearly visible.
+
+### For Interpreters
+*   **Purpose**: Offer remote visual assistance and interpretation services.
+*   **What to Expect**:
+    *   **Standby Mode**: Login and toggle your status between "Online" and "Offline".
+    *   **Incoming Call Alerts**: Full-screen notification when a user needs assistance.
+    *   **Two-Way Audio/Video**: Use your voice to translate for the Deaf user while signing back to them via video.
+    *   **Abuse Reporting**: Report inappropriate behavior immediately after a call.
+
+---
+
+## 🚀 Key Features
+*   **Real-Time WebRTC Video**: Low-latency peer-to-peer video streaming.
+*   **Bifunctional Login**: Single app supports both User and Interpreter workflows.
+*   **Presence System**: Interpreters control their availability; Deaf users see live counts.
+*   **Video Visibility**: Notifications confirm when video renders on the peer's device.
+*   **Privacy First**: Direct device-to-device connection.
+
+---
+
+## 🛠 Technical Overview
+This project serves as a proof-of-concept for a modern IOS video chat application.
+
+*   **iOS Client**: Built with **SwiftUI** and **WebRTC**.
+*   **Backend**: Node.js + WebSocket signaling server.
+*   **Connectivity**: STUN/TURN support (ICE) for traversing NATs.
+*   **Optimization**: Custom video adaptation ("Feed the Beast" strategy) for iPad Pro compatibility.
+
+## 📦 Setup & Build
+
+1.  **Install dependencies**:
+    ```bash
+    cd BeMyEars
+    pod install
+    ```
+2.  **Open Workspace**:
+    **CRITICAL**: You must open `BeMyEars.xcworkspace`, NOT `BeMyEars.xcodeproj`.
+    ```bash
+    open BeMyEars.xcworkspace
+    ```
+3.  **Build**: Select your target device and run (Cmd+R).
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -0,0 +1,347 @@
+{
+  "name": "bemyears-backend",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "bemyears-backend",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "bonjour-service": "^1.3.0",
+        "uuid": "^9.0.0",
+        "ws": "^8.13.0"
+      },
+      "devDependencies": {
+        "@types/node": "^18.15.0",
+        "@types/uuid": "^9.0.1",
+        "@types/ws": "^8.5.4",
+        "ts-node": "^10.9.1",
+        "typescript": "^5.0.0"
+      }
+    },
+    "node_modules/@cspotcode/source-map-support": {
+      "version": "0.8.1",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@jridgewell/trace-mapping": "0.3.9"
+      },
+      "engines": {
+        "node": ">=12"
+      }
+    },
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+      "license": "MIT",
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+      }
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+      "license": "MIT"
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+      "dependencies": {
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+        "@jridgewell/sourcemap-codec": "^1.4.10"
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+    },
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+        "@leichtgewicht/ip-codec": "^2.0.1"
+      },
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+      }
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+        "dns-packet": "^5.2.2",
+        "thunky": "^1.0.2"
+      },
+      "bin": {
+        "multicast-dns": "cli.js"
+      }
+    },
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+      "license": "MIT"
+    },
+    "node_modules/ts-node": {
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@cspotcode/source-map-support": "^0.8.0",
+        "@tsconfig/node10": "^1.0.7",
+        "@tsconfig/node12": "^1.0.7",
+        "@tsconfig/node14": "^1.0.0",
+        "@tsconfig/node16": "^1.0.2",
+        "acorn": "^8.4.1",
+        "acorn-walk": "^8.1.1",
+        "arg": "^4.1.0",
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+      },
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+        "ts-node": "dist/bin.js",
+        "ts-node-cwd": "dist/bin-cwd.js",
+        "ts-node-esm": "dist/bin-esm.js",
+        "ts-node-script": "dist/bin-script.js",
+        "ts-node-transpile-only": "dist/bin-transpile.js",
+        "ts-script": "dist/bin-script-deprecated.js"
+      },
+      "peerDependencies": {
+        "@swc/core": ">=1.2.50",
+        "@swc/wasm": ">=1.2.50",
+        "@types/node": "*",
+        "typescript": ">=2.7"
+      },
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+        "@swc/core": {
+          "optional": true
+        },
+        "@swc/wasm": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/typescript": {
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+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
+    "node_modules/undici-types": {
+      "version": "5.26.5",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
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+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/uuid": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-9.0.1.tgz",
+      "integrity": "sha512-b+1eJOlsR9K8HJpow9Ok3fiWOWSIcIzXodvv0rQjVoOVNpWMpxf1wZNpt4y9h10odCNrqnYp1OBzRktckBe3sA==",
+      "funding": [
+        "https://github.com/sponsors/broofa",
+        "https://github.com/sponsors/ctavan"
+      ],
+      "license": "MIT",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
+    "node_modules/v8-compile-cache-lib": {
+      "version": "3.0.1",
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+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/ws": {
+      "version": "8.18.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.3.tgz",
+      "integrity": "sha512-PEIGCY5tSlUt50cqyMXfCzX+oOPqN0vuGqWzbcJ2xvnkzkq46oOpz7dQaTDBdfICb4N14+GARUDw2XV2N4tvzg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
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+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/yn": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
+      "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    }
+  }
+}
--- a/backend/package.json
+++ b/backend/package.json
@@ -0,0 +1,26 @@
+{
+  "name": "bemyears-backend",
+  "version": "1.0.0",
+  "description": "Signaling server for BeMyEars iOS app",
+  "main": "dist/server.js",
+  "scripts": {
+    "build": "tsc",
+    "start": "node dist/server.js",
+    "dev": "ts-node src/server.ts"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "bonjour-service": "^1.3.0",
+    "uuid": "^9.0.0",
+    "ws": "^8.13.0"
+  },
+  "devDependencies": {
+    "@types/node": "^18.15.0",
+    "@types/uuid": "^9.0.1",
+    "@types/ws": "^8.5.4",
+    "ts-node": "^10.9.1",
+    "typescript": "^5.0.0"
+  }
+}
--- a/backend/src/server.ts
+++ b/backend/src/server.ts
@@ -0,0 +1,456 @@
+import { WebSocketServer, WebSocket } from 'ws';
+import { v4 as uuidv4 } from 'uuid';
+
+console.log("BeMyEars Signaling Server Starting...");
+
+// Override console.log and console.error to include timestamps
+const originalLog = console.log;
+const originalError = console.error;
+
+function getTimestamp() {
+    const now = new Date();
+    const dateComponent = now.toLocaleDateString('en-CA'); // YYYY-MM-DD
+    const timeComponent = now.toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit', second: '2-digit', hour12: true });
+    return `${dateComponent} ${timeComponent}`;
+}
+
+console.log = (...args: any[]) => {
+    originalLog(`[${getTimestamp()}]`, ...args);
+};
+
+console.error = (...args: any[]) => {
+    originalError(`[${getTimestamp()}]`, ...args);
+};
+
+const PORT = 8080;
+const wss = new WebSocketServer({ port: PORT });
+
+// Types
+type Role = 'caller' | 'interpreter';
+type PresenceState = 'UNAVAILABLE' | 'AVAILABLE' | 'RINGING' | 'IN_CALL';
+
+interface User {
+    username: string;
+    role: Role;
+    ws: WebSocket;
+    state?: PresenceState; // Only for interpreters
+    currentCallId?: string;
+}
+
+interface SignalingMessage {
+    type: string;
+    callId?: string;
+    from?: string; // Appended by server for security
+    to?: string;
+    payload?: any;
+    // Client sent properties
+    username?: string;
+    role?: Role;
+}
+
+// State
+const users = new Map<string, User>();
+const calls = new Map<string, { caller: string; interpreter: string; timer?: NodeJS.Timeout }>();
+
+wss.on('connection', (ws, req) => {
+    let ip = req.socket.remoteAddress;
+    if (ip && ip.startsWith('::ffff:')) {
+        ip = ip.substring(7);
+    }
+    console.log(`New client connected from ${ip}`);
+    let currentUser: User | null = null;
+
+    ws.on('message', (message: any) => {
+        try {
+            const data: SignalingMessage = JSON.parse(message.toString());
+            handleMessage(ws, data, currentUser).then(user => {
+                if (user) currentUser = user;
+            });
+        } catch (e) {
+            console.error('Failed to parse message:', e);
+        }
+    });
+
+    ws.on('close', () => {
+        if (currentUser) {
+            console.log(`User disconnected: ${currentUser.username}`);
+            // Handle disconnect logic (hangup active calls, remove from presence)
+            handleDisconnect(currentUser);
+        }
+    });
+});
+
+async function handleMessage(ws: WebSocket, msg: SignalingMessage, currentUser: User | null): Promise<User | null> {
+    switch (msg.type) {
+        case 'SET_PRESENCE':
+            if (currentUser) handleSetPresence(currentUser, msg);
+            return currentUser;
+        case 'REGISTER':
+            return handleRegister(ws, msg);
+        case 'CALL_REQUEST':
+            if (currentUser) handleCallRequest(currentUser, msg);
+            return currentUser;
+        case 'CALL_ACCEPT':
+            if (currentUser) handleCallAccept(currentUser, msg);
+            return currentUser;
+        case 'CALL_DECLINE':
+            if (currentUser) handleCallDecline(currentUser, msg);
+            return currentUser;
+        case 'OFFER':
+        case 'ANSWER':
+        case 'ICE':
+        case 'HANGUP':
+        case 'VIDEO_VISIBLE':
+            if (currentUser) handleSignaling(currentUser, msg);
+            return currentUser;
+        case 'REPORT_ABUSE':
+            if (currentUser) handleReportAbuse(currentUser, msg);
+            return currentUser;
+        default:
+            console.warn(`Unknown message type: ${msg.type}`);
+            return currentUser;
+    }
+}
+
+function handleRegister(ws: WebSocket, msg: SignalingMessage): User | null {
+    const username = msg.username || msg.payload?.username;
+    const role = msg.role || msg.payload?.role;
+
+    if (!username || !role) {
+        console.log("Registration failed: Missing username or role in", msg);
+        return null;
+    }
+
+    // Simple uniqueness check
+    if (users.has(username)) {
+        ws.send(JSON.stringify({ type: 'ERROR', payload: { message: 'Username taken' } }));
+        return null;
+    }
+
+    const newUser: User = {
+        username: username,
+        role: role as Role,
+        ws: ws,
+        state: role === 'interpreter' ? 'UNAVAILABLE' : undefined
+    };
+
+    users.set(username, newUser);
+    console.log(`✅ CLIENT IDENTIFIED: ${newUser.username} (${newUser.role})`);
+
+    ws.send(JSON.stringify({ type: 'REGISTER_SUCCESS', payload: { username: newUser.username } }));
+
+    broadcastPresence();
+
+    // Send initial presence list to caller
+    if (newUser.role === 'caller') {
+        sendPresenceList(ws);
+    }
+
+    return newUser;
+}
+
+function handleCallRequest(caller: User, msg: SignalingMessage) {
+    if (caller.role !== 'caller') return;
+    const interpreterUsername = msg.to;
+    if (!interpreterUsername) return;
+
+    const interpreter = users.get(interpreterUsername);
+    if (!interpreter || interpreter.role !== 'interpreter' || interpreter.state !== 'AVAILABLE') {
+        caller.ws.send(JSON.stringify({ type: 'BUSY', payload: { message: 'Interpreter unavailable' } }));
+        return;
+    }
+
+    const callId = uuidv4();
+
+    // Update State
+    interpreter.state = 'RINGING';
+    interpreter.currentCallId = callId;
+    caller.currentCallId = callId;
+
+    calls.set(callId, { caller: caller.username, interpreter: interpreter.username });
+
+    console.log(`📞 Call Request (${callId}): ${caller.username} -> ${interpreter.username}`);
+
+    // Broadcast presence update (interpreter is now RINGING, so hidden/busy)
+    broadcastPresence();
+
+    // Forward to interpreter
+    interpreter.ws.send(JSON.stringify({
+        type: 'CALL_REQUEST',
+        callId: callId,
+        from: caller.username,
+        payload: msg.payload
+    }));
+
+    // Start 10s Timer
+    const timeout = setTimeout(() => {
+        handleCallTimeout(callId);
+    }, 10000);
+
+    const callData = calls.get(callId);
+    if (callData) callData.timer = timeout;
+}
+
+function handleCallAccept(interpreter: User, msg: SignalingMessage) {
+    if (interpreter.role !== 'interpreter' || !msg.callId) return;
+
+    const call = calls.get(msg.callId);
+    if (!call || call.interpreter !== interpreter.username) return; // Invalid call
+
+    if (call.timer) clearTimeout(call.timer);
+
+    interpreter.state = 'IN_CALL';
+    broadcastPresence();
+
+    console.log(`✅ Call Connected (${msg.callId}): ${call.caller} <-> ${interpreter.username}`);
+
+    const caller = users.get(call.caller);
+    if (caller) {
+        // Send TURN credentials here if we had them dynamic, for now relying on client config or static
+        caller.ws.send(JSON.stringify({
+            type: 'CALL_ACCEPT',
+            callId: msg.callId,
+            from: interpreter.username,
+            payload: {
+                turnServer: {
+                    urls: "turn:turn.jaredlog.com:3478",
+                    username: "user",
+                    credential: "password"
+                }
+            }
+        }));
+    }
+}
+
+function handleCallDecline(interpreter: User, msg: SignalingMessage) {
+    if (interpreter.role !== 'interpreter' || !msg.callId) return;
+    const call = calls.get(msg.callId);
+    if (!call) return;
+
+    if (call.timer) clearTimeout(call.timer);
+
+    // Reset interpreter
+    interpreter.state = 'AVAILABLE';
+    interpreter.currentCallId = undefined;
+    broadcastPresence();
+
+    // Notify caller
+    const caller = users.get(call.caller);
+    if (caller) {
+        caller.ws.send(JSON.stringify({
+            type: 'CALL_DECLINE',
+            callId: msg.callId,
+            from: interpreter.username
+        }));
+        caller.currentCallId = undefined;
+    }
+
+    calls.delete(msg.callId);
+    console.log(`❌ Call Declined (${msg.callId}) by ${interpreter.username}`);
+}
+
+function handleCallTimeout(callId: string) {
+    const call = calls.get(callId);
+    if (!call) return;
+
+    const interpreter = users.get(call.interpreter);
+    const caller = users.get(call.caller);
+
+    if (interpreter) {
+        interpreter.state = 'AVAILABLE';
+        interpreter.currentCallId = undefined;
+        // Notify interpreter of timeout?
+        interpreter.ws.send(JSON.stringify({ type: 'TIMEOUT', callId }));
+    }
+
+    if (caller) {
+        caller.ws.send(JSON.stringify({ type: 'BUSY', payload: { message: 'No answer' }, callId }));
+        caller.currentCallId = undefined;
+    }
+
+    calls.delete(callId);
+    broadcastPresence();
+}
+
+function handleSignaling(user: User, msg: SignalingMessage) {
+    if (!msg.callId || !msg.to) return; // Note: HANGUP might not strictly need 'to' if callId maps it, but keeping for consistency
+
+    // Security check: is this user actually in this call?
+    const call = calls.get(msg.callId);
+    if (!call) return;
+    if (call.caller !== user.username && call.interpreter !== user.username) return;
+
+    if (msg.type === 'HANGUP') {
+        handleHangup(user, msg.callId);
+        return;
+    }
+
+    const targetUser = users.get(msg.to);
+    if (targetUser) {
+        targetUser.ws.send(JSON.stringify({
+            type: msg.type,
+            callId: msg.callId,
+            from: user.username,
+            payload: msg.payload
+        }));
+    }
+}
+
+function handleHangup(user: User, callId: string) {
+    const call = calls.get(callId);
+    if (!call) return;
+
+    if (call.timer) clearTimeout(call.timer);
+
+    const interpreter = users.get(call.interpreter);
+    const caller = users.get(call.caller);
+
+    const otherUser = user.username === call.caller ? interpreter : caller;
+
+    if (otherUser) {
+        otherUser.ws.send(JSON.stringify({ type: 'HANGUP', callId, from: user.username }));
+        otherUser.currentCallId = undefined;
+        if (otherUser.role === 'interpreter') {
+            otherUser.state = 'AVAILABLE';
+        }
+    }
+
+    if (user.role === 'interpreter') {
+        user.state = 'AVAILABLE';
+    }
+    user.currentCallId = undefined;
+
+    calls.delete(callId);
+    console.log(`❌ Call Disconnected (${callId}) by ${user.username}`);
+    broadcastPresence();
+}
+
+function handleDisconnect(user: User) {
+    users.delete(user.username);
+
+    if (user.currentCallId) {
+        handleHangup(user, user.currentCallId);
+    }
+
+    broadcastPresence();
+}
+
+function broadcastPresence() {
+    const availableInterpreters = Array.from(users.values())
+        .filter(u => u.role === 'interpreter' && u.state === 'AVAILABLE')
+        .map(u => ({ username: u.username }));
+
+    const message = JSON.stringify({
+        type: 'PRESENCE_UPDATE',
+        payload: availableInterpreters
+    });
+
+    // Calculate stats
+    const numInterpreters = Array.from(users.values()).filter(u => u.role === 'interpreter').length;
+    const numCallers = Array.from(users.values()).filter(u => u.role === 'caller').length;
+
+    const statsMessage = JSON.stringify({
+        type: 'STATS_UPDATE',
+        payload: {
+            interpreters: numInterpreters,
+            callers: numCallers
+        }
+    });
+
+    for (const u of users.values()) {
+        if (u.role === 'caller') {
+            u.ws.send(message);
+        } else if (u.role === 'interpreter') {
+            u.ws.send(statsMessage);
+        }
+    }
+}
+
+function sendPresenceList(ws: WebSocket) {
+    const availableInterpreters = Array.from(users.values())
+        .filter(u => u.role === 'interpreter' && u.state === 'AVAILABLE')
+        .map(u => ({ username: u.username }));
+
+    ws.send(JSON.stringify({
+        type: 'PRESENCE_UPDATE',
+        payload: availableInterpreters
+    }));
+}
+
+function handleSetPresence(user: User, msg: SignalingMessage) {
+    if (user.role !== 'interpreter') return;
+
+    // Only allow switching between AVAILABLE and UNAVAILABLE if not in call
+    if (user.state === 'RINGING' || user.state === 'IN_CALL') {
+        user.ws.send(JSON.stringify({ type: 'ERROR', payload: { message: 'Cannot change presence while in call' } }));
+        return;
+    }
+
+    const requestedState = msg.payload?.state;
+    if (requestedState === 'AVAILABLE' || requestedState === 'UNAVAILABLE') {
+        user.state = requestedState;
+        console.log(`Presence Update: ${user.username} -> ${user.state}`);
+        broadcastPresence();
+
+        // Ack
+        user.ws.send(JSON.stringify({ type: 'PRESENCE_CHANGED', payload: { state: user.state } }));
+    }
+}
+
+
+function handleReportAbuse(user: User, msg: SignalingMessage) {
+    if (user.role !== 'interpreter') return;
+
+    const message = msg.payload?.message;
+    const offender = msg.payload?.offender;
+    const callId = msg.callId;
+
+    if (!message || !callId) {
+        console.warn(`Invalid abuse report from ${user.username}: Missing message or callId`);
+        return;
+    }
+
+    // Limit message length to 100 chars
+    const truncatedMessage = message.substring(0, 100);
+
+    console.log(`⚠️ ABUSE REPORT:
+    From: ${user.username}
+    About: ${offender || 'Unknown'}
+    Call ID: ${callId}
+    Message: "${truncatedMessage}"`);
+}
+
+import os from 'os';
+
+function getLocalIpAddress() {
+    const interfaces = os.networkInterfaces();
+    for (const name of Object.keys(interfaces)) {
+        for (const iface of interfaces[name]!) {
+            // Skip over internal (i.e. 127.0.0.1) and non-IPv4 addresses
+            if (iface.family === 'IPv4' && !iface.internal) {
+                return iface.address;
+            }
+        }
+    }
+    return 'localhost';
+}
+
+const localIp = getLocalIpAddress();
+console.log(`Server listening on port ${PORT}`);
+console.log(`Network access: http://${localIp}:${PORT}`);
+
+// Bonjour / mDNS
+import { Bonjour } from 'bonjour-service';
+const bonjour = new Bonjour();
+
+bonjour.publish({ name: 'BeMyEars Server', type: 'bemyears', port: PORT, protocol: 'tcp' });
+console.log('📢 Advertising Bonjour service: _bemyears._tcp');
+
+
+// Log user stats every 5 minutes
+setInterval(() => {
+    const numInterpreters = Array.from(users.values()).filter(u => u.role === 'interpreter').length;
+    const numCallers = Array.from(users.values()).filter(u => u.role === 'caller').length;
+
+    console.log(`📊 STATS: ${numInterpreters} Interpreters, ${numCallers} Callers online`);
+}, 300000);
--- a/backend/tsconfig.json
+++ b/backend/tsconfig.json
@@ -0,0 +1,12 @@
+{
+    "compilerOptions": {
+        "target": "es2016",
+        "module": "commonjs",
+        "outDir": "./dist",
+        "rootDir": "./src",
+        "strict": true,
+        "esModuleInterop": true,
+        "skipLibCheck": true,
+        "forceConsistentCasingInFileNames": true
+    }
+}
--- a/check_build.sh
+++ b/check_build.sh
@@ -0,0 +1,36 @@
+#!/bin/zsh
+set -o pipefail
+
+# --- Configuration ---
+SCHEME="BeMyEars"
+DEVICE_NAME="iPhone 17 Pro" 
+# Falling back to 16 Pro as 17 might not be in all sim runtimes yet, 
+# but easy to change if needed. 
+BUILD_PATH="./build"
+
+echo "🔍 Checking compilation for $SCHEME..."
+
+# Ensure xcbeautify is installed or fallback to cat
+if ! command -v xcbeautify &> /dev/null; then
+    echo "⚠️ xcbeautify not found, using plain output."
+    FORMATTER="cat"
+else
+    FORMATTER="xcbeautify"
+fi
+
+# Build Only
+env -u CC -u CXX -u LIBCLANG_PATH xcodebuild \
+  -workspace "BeMyEars.xcworkspace" \
+  -scheme "$SCHEME" \
+  -destination "platform=iOS Simulator,name=$DEVICE_NAME" \
+  -configuration Debug \
+  -derivedDataPath "$BUILD_PATH" \
+  build | $FORMATTER
+
+# Check exit code
+if [ $? -eq 0 ]; then
+    echo "✅ Build Succeeded. No errors found."
+else
+    echo "❌ Build Failed."
+    exit 1
+fi
--- a/project-technical-specifications.md
+++ b/project-technical-specifications.md
@@ -0,0 +1,370 @@
+# iOS 1:1 Video Chat for Deaf Users & Interpreters
+
+## Full Technical Specifications Document
+
+**Status:** LOCKED
+**Version:** v1.3 (Final)
+**Scope:** Proof of Concept (Production-Aligned)
+
+-----
+
+### 1\. Purpose & Product Overview
+
+This project delivers an iOS proof-of-concept application that enables secure, real-time, one-to-one video communication between:
+
+1.  **Callers** (deaf users), and
+2.  **Interpreters** (who wait for incoming calls)
+
+The application is designed explicitly for sign language communication, prioritizing:
+
+  * Visual clarity
+  * Low latency
+  * Predictable call behavior
+  * Privacy and trust
+
+The POC is architected to evolve directly into a production system without re-architecture.
+
+-----
+
+### 2\. Platform & Runtime Constraints
+
+| Category | Specification |
+| :--- | :--- |
+| **Target OS** | iOS |
+| **Minimum iOS Version** | 18.6 |
+| **UI Framework** | SwiftUI |
+| **Devices** | iPhone & iPad |
+| **Orientation** | Portrait & Landscape |
+| **Background Execution** | Not supported (foreground-only) |
+| **Distribution** | TestFlight |
+| **Accessibility** | Sign-language-first UI decisions |
+| **Accessibility** | Sign-language-first UI decisions |
+| **Audio** | Implicit with video (no audio-only mode) |
+| **Network** | **Local Network Permission Required** (Discovery) |
+
+-----
+
+### 3\. User Roles & Authorization Model
+
+**3.1 Roles**
+Roles are assigned at registration time and are ephemeral.
+
+  * **Caller:** Can initiate calls.
+  * **Interpreter:** Can receive calls only.
+
+**3.2 Enforcement Rules**
+
+  * Only callers may initiate `CALL_REQUEST`.
+  * Only interpreters may respond with `CALL_ACCEPT` or `CALL_DECLINE`.
+  * Interpreters cannot initiate calls.
+  * Role enforcement is server-side authoritative.
+
+-----
+
+### 4\. Identity & Presence
+
+**4.1 Username Rules**
+
+  * Usernames must be globally unique.
+  * Validated by registrar server.
+  * Ephemeral (no persistence).
+  * Cannot be changed while registered.
+  * No authentication.
+
+**4.2 Presence Lifecycle**
+Presence is server-authoritative and maintained via:
+
+  * **Heartbeat interval:** 15 seconds
+  * **Presence TTL:** 20 seconds
+  * **Presence delivery:** WebSocket push (immediate)
+
+A user is considered present only while:
+
+1.  Registered
+2.  Heartbeat valid
+3.  WebSocket connection active
+
+-----
+
+### 5\. Presence States
+
+Each interpreter exists in exactly one state:
+
+0.  **UNAVAILABLE:** Default state after login. Can NOT receive calls.
+1.  **AVAILABLE:** Can receive calls.
+2.  **RINGING:** Call request active.
+3.  **IN_CALL:** Actively connected.
+
+**Presence List Behavior**
+
+  * Only interpreters in `AVAILABLE` appear to callers.
+  * Interpreters in `UNAVAILABLE`, `RINGING` or `IN_CALL` are hidden.
+  * State transitions are server-controlled.
+  * `UNAVAILABLE` is the enforced starting state for all interpreters.
+  * Interpreters must explicitly "Go Online" to become `AVAILABLE`.
+
+-----
+
+### 6\. Video & Networking Architecture
+
+**6.1 Media Transport**
+
+  * WebRTC Peer-to-Peer (1:1)
+  * WebRTC Peer-to-Peer (1:1)
+  * DTLS-SRTP encryption (Media)
+  * **Signaling Transport:** WebSocket (`ws://`) for POC (Production requires `wss://`).
+  * No SFU or MCU
+
+**6.2 NAT Traversal**
+
+  * **STUN:** for candidate discovery.
+  * **TURN:** self-hosted (coturn) as mandatory fallback.
+  * **Requirements:** TURN is required for Symmetric NATs, Carrier-grade NAT, and Enterprise firewalls.
+
+**6.3 Video Capture & Encoding Strategy**
+
+  * **Capture:** Best available front camera format (Target 1080p @ 30fps).
+  * **Encoding/Streaming:** Dynamic resolution adaptation based on device aspect ratio (e.g. 16:9 for iPhones, 4:3 for iPads). Default target is 720p equivalent.
+  * **iPad Support:**
+      * **Dynamic Resolution:** Detects screen aspect ratio (using `UIScreen.nativeBounds`) to scale video output correctly (e.g. 1440x1080 for iPad 4:3) preventing distortion.
+      * **Stability Fix:** Explicitly forces `.high` session preset (with fallback to `.medium`/`.low`) *after* capture start to override WebRTC defaults that crash iPad Mini.
+      * **Format Selection:** Strictly prioritizes standard 16:9 capture formats (1280x720, 1920x1080) to ensure hardware compatibility, avoiding unstable 4:3 formats like 1280x960.
+
+-----
+
+### 7\. Call Lifecycle & Concurrency Model
+
+**7.1 Call Creation (Authoritative Server Flow)**
+
+1.  Caller selects interpreter.
+2.  Server generates `callId` (UUID).
+3.  **Interpreter state transitions:** `AVAILABLE` → `RINGING`
+4.  Server starts 10-second ring timer.
+5.  Interpreter receives call request.
+
+**7.2 Ring Outcomes**
+
+  * **Accept within 10s:** State `RINGING` → `IN_CALL`. WebRTC negotiation begins.
+  * **Decline:** State resets to `AVAILABLE`.
+  * **Timeout:** Server auto-reverts to `AVAILABLE`.
+  * **Race condition:** Immediate `BUSY` error to caller.
+
+**7.3 Call Termination**
+Any of the following revert interpreter to `AVAILABLE`:
+
+  * Hangup
+  * WebRTC failure
+  * ICE timeout
+  * Heartbeat expiration
+  * WebSocket disconnect
+  * App crash / force quit
+
+-----
+
+### 8\. Timeouts (Hard Guarantees)
+
+| Stage | Timeout |
+| :--- | :--- |
+| **Ringing** | 10 seconds |
+| **Offer/Answer** | 10 seconds after accept |
+| **ICE gathering/connection** | 10–15 seconds |
+| **Max “connecting” state** | 20 seconds total |
+
+-----
+
+### 9\. Signaling & Call Identification
+
+**9.1 callId**
+
+  * UUID generated only by server.
+  * Required on all signaling messages.
+  * Used to correlate messages, enforce authorization, and prevent race conditions.
+
+**9.2 Authorization Rules**
+For a given `callId`:
+
+  * Only caller + interpreter may exchange signaling.
+  * Messages with unknown/expired `callId` are rejected.
+  * Messages violating role rules are rejected.
+  * Invalid messages are explicitly errored (not forwarded).
+
+-----
+
+### 10\. Signaling Protocol
+
+**WebSocket Message Envelope**
+
+```json
+{
+  "type": "CALL_REQUEST | CALL_ACCEPT | CALL_DECLINE | OFFER | ANSWER | ICE | HANGUP | BUSY | REPORT_ABUSE | STATS_UPDATE | VIDEO_VISIBLE",
+  "callId": "uuid",
+  "from": "username",
+  "to": "username",
+  "payload": {}
+}
+```
+
+-----
+
+### 11\. Presence Delivery
+
+  * Presence updates are pushed immediately via WebSocket.
+  * Clients do not poll.
+  * Server is the single source of truth.
+  * Client does not infer presence locally.
+
+-----
+
+### 12\. Video UX Requirements
+
+| Aspect | Specification |
+| :--- | :--- |
+| **Camera** | Front only |
+| **Remote View** | Full-screen |
+| **Local Preview** | Picture-in-Picture (PiP) |
+| **PiP Default** | Top-right |
+| **PiP Behavior** | Draggable, snap-to-corners |
+| **Safe Area** | Enforced |
+| **Mirroring** | Enabled (front camera) |
+| **Controls** | Hang-up only |
+
+-----
+
+### 13\. Bandwidth & Connection Quality Rules
+
+**Setup Phase**
+
+  * **TCP Relay:** Permitted (allowed as fallback for restrictive firewalls/campus networks).
+
+**Connected Phase**
+
+  * **Packet Loss:** Accepted.
+  * **Error Correction:** WebRTC handles packet loss via NACK and FEC (Forward Error Correction).
+  * **Degradation Policy:**
+      * If quality drops below usable thresholds (defined as tunable constants): **Show "Poor Connection" UI Warning.**
+      * Connection remains active unless fully severed by network timeout.
+
+-----
+
+### 14\. iOS Client Architecture
+
+**14.1 Frameworks**
+
+  * SwiftUI
+  * WebRTC iOS SDK
+  * Combine / async-await as needed
+
+**14.2 Architecture Pattern**
+
+  * MVVM
+
+**14.3 Modules**
+
+  * Registration
+  * Presence
+  * Call State Machine
+  * WebRTC Engine
+  * PiP Video View
+
+**14.4 Call State Machine**
+`Idle` → `Registered` → `Calling` → `IncomingCall` → `Connecting` → `InCall` → `Ending` → `Error`
+
+  * Transitions driven only by: User action, Server signaling, WebRTC callbacks, Timeout events.
+
+-----
+
+### 15\. Backend Architecture
+
+**15.1 Stack**
+
+  * Node.js (TypeScript)
+  * WebSocket signaling
+  * In-memory presence store (POC)
+  * HTTPS/WSS only
+
+**15.2 Server Responsibilities**
+
+  * Username uniqueness
+  * Role enforcement
+  * Presence tracking
+  * Call state transitions
+  * Presence tracking
+  * Call state transitions
+  * Mutex/locking on call requests
+  * **Service Discovery:** Advertises via Bonjour (`_bemyears._tcp`) for zero-conf client connection.
+  * TURN configuration delivery
+
+-----
+
+### 16\. TURN Server Specification
+
+| Item | Specification |
+| :--- | :--- |
+| **Software** | coturn |
+| **Auth** | Static long-term credentials (POC only) |
+| **Transport** | UDP + TCP |
+| **Encryption** | TURN-TLS enabled |
+| **Capacity** | ≤5 concurrent calls |
+
+*Security Note: Static credentials are acceptable for TestFlight only and must be replaced before App Store release.*
+
+-----
+
+### 17. Service Discovery (Bonjour)
+
+**17.1 Mechanism**
+  * The iOS client uses `NetServiceBrowser` to discover the backend server on the local network.
+  * **Service Type:** `_bemyears._tcp`
+  * **Domain:** `local.`
+  * **Resolution:** Resolves IPv4 address of the backend and auto-populates it for the user.
+  * **Fallback:** Manual IP entry is supported via `UserDefaults` persistence.
+
+-----
+
+### 18. Logging & Privacy
+
+**18.1 Allowed Server Logs**
+ 
+   * Timestamp (YYYY-MM-DD HH:MM:SS format)
+   * Event type
+   * callId (Required for call-related events)
+   * sessionId
+   * Role
+   * Offender identity (for Abuse Reports)
+   * Periodic User Statistics (every 5 minutes)
+ 
+ **18.2 Explicitly Forbidden**
+ 
+   * SDP bodies
+   * ICE candidates
+   * Video metadata
+   * Media statistics tied to identity
+ 
+ **18.3 Client-Side**
+ 
+   * No logging beyond OS crash reports.
+   * `lastCallId` and `lastRemoteUser` are persisted temporarily for abuse reporting only.
+
+-----
+
+### 19. Security Posture
+
+  * TLS for all signaling (Production).
+  * DTLS-SRTP for media.
+  * No stored personal data.
+  * No call content persistence.
+  * Server-authoritative enforcement everywhere.
+
+-----
+
+### 20. Acceptance Criteria
+
+  * Users register successfully with unique usernames.
+  * Presence updates are immediate.
+  * Interpreters disappear on call request.
+  * Race conditions result in exactly one successful call.
+  * Calls succeed behind NAT using TURN (including TCP relay fallback).
+  * PiP works reliably for signing framing.
+  * All failure paths recover cleanly.
+
+-----
--- a/server-setup.md
+++ b/server-setup.md
@@ -0,0 +1,248 @@
+# BeMyEars Server Setup Guide (Customized for webrtc.jaredlog.com)
+
+This guide details the steps to deploy the BeMyEars backend and a self-hosted TURN server (Coturn) on your specific server environment (`webrtc.jaredlog.com`).
+
+**Environment Details:**
+- **Domain:** `webrtc.jaredlog.com` (Used for both API and TURN)
+- **SSH Port:** **2222** (CRITICAL: Do not lock yourself out!)
+- **Existing Services:** Nginx (Proxying Gunicorn, etc.), Postgres, Redis, etc.
+
+---
+
+## 1. Install Node.js & Tools
+
+Your server has a node process on 5002, so Node might already be installed. Check version matches requirements (v18+ recommended).
+
+```bash
+# Check existing version
+node -v
+
+# IF needed, update:
+curl -fsSL https://deb.nodesource.com/setup_18.x | sudo -E bash -
+sudo apt install -y nodejs
+
+# Install PM2 (Process Manager) globally if missing
+sudo npm install -g pm2 ts-node typescript
+```
+
+---
+
+## 2. Deploy Backend Code
+
+Deploy the code to a suitable directory (e.g. `/var/www/bemyears`).
+
+```bash
+# Clone
+git clone https://github.com/your-repo/BeMyEars.git /var/www/bemyears
+
+# Install & Build
+cd /var/www/bemyears/backend
+npm install
+npm run build
+
+# Start with PM2
+# Note: Your server has many services. We use port 8080 for the backend internally.
+# Ensure 8080 is free (it wasn't listed in your netprograms output, so it should be safe).
+pm2 start dist/server.js --name "bemyears-backend"
+
+# Save PM2 list
+pm2 save
+```
+
+The backend is now running on **127.0.0.1:8080**.
+
+---
+
+## 3. Setup COTURN (TURN Server)
+
+You need to run Coturn on this server to handle NAT traversal.
+**Ports Checked:** `3478` and `5349` are NOT listed in your `netprograms`, so they are available.
+
+### 3.1 Install & Configure
+
+```bash
+sudo apt install -y coturn
+sudo mv /etc/turnserver.conf /etc/turnserver.conf.backup
+sudo nano /etc/turnserver.conf
+```
+
+**Configuration (Copy/Paste):**
+Replace `<PUBLIC_IP>` with your server's WAN IP (`74.50.98.226` from your output).
+
+```ini
+# /etc/turnserver.conf
+listening-port=3478
+tls-listening-port=5349
+listening-ip=0.0.0.0
+
+# External IP
+external-ip=74.50.98.226
+
+# Domain (Using the same domain is fine)
+realm=webrtc.jaredlog.com
+server-name=webrtc.jaredlog.com
+
+# Static Auth
+user=user:password
+
+# Security
+no-cli
+no-loopback-peers
+no-multicast-peers
+
+# Certificate (Re-use existing Nginx certs if possible, or new ones)
+# Ideally point to the same certs Nginx uses for webrtc.jaredlog.com
+cert=/etc/letsencrypt/live/webrtc.jaredlog.com/fullchain.pem
+pkey=/etc/letsencrypt/live/webrtc.jaredlog.com/privkey.pem
+```
+
+### 3.2 Start
+
+```bash
+sudo sed -i 's/#TURNSERVER_ENABLED=1/TURNSERVER_ENABLED=1/g' /etc/default/coturn
+sudo systemctl restart coturn
+```
+
+---
+
+## 4. Nginx Configuration
+
+Your Nginx is already listening on 443. We will add a configuration to proxy `wss://webrtc.jaredlog.com` to your Node backend.
+
+### 4.1 Create Config
+
+```bash
+sudo nano /etc/nginx/sites-available/bemyears
+```
+
+**Content:**
+
+```nginx
+server {
+    listen 443 ssl;
+    server_name webrtc.jaredlog.com;
+
+    # SSL Config (Reuse your existing cert paths or generates new ones)
+    # Check /etc/nginx/sites-enabled/ for examples of your existing SSL setup
+    ssl_certificate /etc/letsencrypt/live/webrtc.jaredlog.com/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/webrtc.jaredlog.com/privkey.pem;
+
+    location / {
+        proxy_pass http://127.0.0.1:8080;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "upgrade";
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+    }
+}
+```
+
+### 4.2 Enable
+
+```bash
+sudo ln -s /etc/nginx/sites-available/bemyears /etc/nginx/sites-enabled/
+sudo systemctl reload nginx
+```
+
+### 4.3 Obtain SSL Certificates (Certbot)
+
+Since Nginx is already configured and listening on port 80/443, we use the `--nginx` plugin to request the certificates securely.
+
+```bash
+# 1. Obtain certs
+sudo certbot --nginx -d webrtc.jaredlog.com
+
+# 2. Verify paths
+# Certificates should be at:
+# /etc/letsencrypt/live/webrtc.jaredlog.com/fullchain.pem
+# /etc/letsencrypt/live/webrtc.jaredlog.com/privkey.pem
+```
+
+### 4.4 Fix Permissions for Coturn
+
+Coturn runs as the `turnserver` user and typically cannot read files in `/etc/letsencrypt/`. We need to grant it read access.
+
+```bash
+# Option A: Simple Group Access (Recommended)
+# Add turnserver user to the ssl-cert group defined by certbot (or root group if ssl-cert is missing)
+sudo usermod -a -G root turnserver 
+# Note: On some systems, certbot keys are owned by root:root with 700 permissions.
+# A more robust hook prevents permission issues during renewal.
+
+# Option B: Use a Deploy Hook (Robust)
+# Create a script to copy certs to a turnserver-owned directory on renewal.
+
+sudo mkdir -p /etc/coturn/certs
+sudo chown -R turnserver:turnserver /etc/coturn/certs
+sudo chmod 700 /etc/coturn/certs
+
+# Create install script
+sudo nano /etc/letsencrypt/renewal-hooks/deploy/coturn-cert-deploy.sh
+```
+
+Paste this script:
+
+```bash
+#!/bin/bash
+DOMAIN="webrtc.jaredlog.com"
+CERT_DIR="/etc/coturn/certs"
+
+if [ "$RENEWED_DOMAINS" = "$DOMAIN" ]; then
+    cp /etc/letsencrypt/live/$DOMAIN/fullchain.pem $CERT_DIR/turn_server_cert.pem
+    cp /etc/letsencrypt/live/$DOMAIN/privkey.pem $CERT_DIR/turn_server_pkey.pem
+    chown turnserver:turnserver $CERT_DIR/*.pem
+    chmod 600 $CERT_DIR/*.pem
+    systemctl restart coturn
+    echo "Deployed new certs for Coturn"
+fi
+```
+
+Make it executable and run it once manually:
+
+```bash
+sudo chmod +x /etc/letsencrypt/renewal-hooks/deploy/coturn-cert-deploy.sh
+# Run manually to populate first time (simulating environment variables)
+RENEWED_DOMAINS="webrtc.jaredlog.com" sudo -E /etc/letsencrypt/renewal-hooks/deploy/coturn-cert-deploy.sh
+```
+
+**Update Coturn Config:**
+If you used Option B, update `/etc/turnserver.conf`:
+```ini
+cert=/etc/coturn/certs/turn_server_cert.pem
+pkey=/etc/coturn/certs/turn_server_pkey.pem
+```
+If you used Option A (Group), keep the default Let's Encrypt paths.
+
+---
+
+
+## 5. Firewall (CRITICAL)
+
+**⚠️ WARNING:** You have SSH running on port **2222**. The default UFW rule `allow ssh` opens port 22. You MUST explicitly open 2222 or you will be locked out.
+
+```bash
+# 1. Allow Connection Management
+sudo ufw allow 2222/tcp  # CRITICAL: Your SSH Port
+sudo ufw allow 80/tcp
+sudo ufw allow 443/tcp
+
+# 2. Allow TURN (Signaling & Relay)
+sudo ufw allow 3478/tcp
+sudo ufw allow 3478/udp
+sudo ufw allow 5349/tcp
+sudo ufw allow 5349/udp
+
+# 3. Allow Media Range (UDP)
+sudo ufw allow 49152:65535/udp
+
+# 4. Enable
+sudo ufw enable
+```
+
+---
+
+## 6. Verification
+
+1. **WebSocket**: Connect to `wss://webrtc.jaredlog.com` (should hit your Node backend).
+2. **TURN**: Test candidates using `turn:webrtc.jaredlog.com:3478` (user:password).
				`@@ -0,0 +1 @@`
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