initial commit

ios_client/EncryptedChat/Views/Auth/LoginView.swift

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+import SwiftUI
+
+struct LoginView: View {
+    @Bindable var viewModel: AuthViewModel
+    var appState: AppState
+
+    var body: some View {
+        NavigationStack {
+            ScrollView {
+                VStack(spacing: 20) {
+                    Image(systemName: "lock.shield.fill")
+                        .font(.system(size: 60))
+                        .foregroundStyle(.blue)
+                        .padding(.top, 40)
+
+                    Text("Encrypted Chat")
+                        .font(.largeTitle.bold())
+
+                    Text("End-to-end encrypted messaging")
+                        .font(.subheadline)
+                        .foregroundStyle(.secondary)
+
+                    VStack(spacing: 16) {
+                        // Server config
+                        DisclosureGroup("Server") {
+                            TextField("Host", text: $viewModel.serverHost)
+                                .textContentType(.URL)
+                                .autocapitalization(.none)
+                            TextField("Port", text: $viewModel.serverPort)
+                                .keyboardType(.numberPad)
+                            Toggle("Use TLS", isOn: $viewModel.useTLS)
+                        }
+                        .padding(.horizontal)
+
+                        TextField("Email", text: $viewModel.email)
+                            .textContentType(.emailAddress)
+                            .keyboardType(.emailAddress)
+                            .autocapitalization(.none)
+                            .textFieldStyle(.roundedBorder)
+
+                        SecureField("Password", text: $viewModel.password)
+                            .textContentType(.password)
+                            .textFieldStyle(.roundedBorder)
+
+                        if viewModel.mode == .register {
+                            TextField("Username", text: $viewModel.username)
+                                .textContentType(.username)
+                                .autocapitalization(.none)
+                                .textFieldStyle(.roundedBorder)
+
+                            SecureField("Confirm Password", text: $viewModel.confirmPassword)
+                                .textFieldStyle(.roundedBorder)
+                        }
+
+                        if let error = viewModel.errorMessage {
+                            Text(error)
+                                .foregroundStyle(.red)
+                                .font(.caption)
+                                .multilineTextAlignment(.center)
+                        }
+
+                        Button(action: {
+                            Task {
+                                if viewModel.mode == .login {
+                                    await viewModel.login(appState: appState)
+                                } else {
+                                    await viewModel.register(appState: appState)
+                                }
+                            }
+                        }) {
+                            if viewModel.isLoading {
+                                ProgressView()
+                                    .frame(maxWidth: .infinity)
+                            } else {
+                                Text(viewModel.mode == .login ? "Login" : "Register")
+                                    .frame(maxWidth: .infinity)
+                            }
+                        }
+                        .buttonStyle(.borderedProminent)
+                        .disabled(viewModel.isLoading)
+
+                        Button(viewModel.mode == .login ? "Don't have an account? Register" : "Already have an account? Login") {
+                            viewModel.mode = viewModel.mode == .login ? .register : .login
+                            viewModel.errorMessage = nil
+                        }
+                        .font(.caption)
+                    }
+                    .padding(.horizontal, 32)
+                }
+            }
+            .sheet(isPresented: $viewModel.showConfirmation) {
+                ConfirmationSheet(viewModel: viewModel, appState: appState)
+            }
+        }
+    }
+}
+
+struct ConfirmationSheet: View {
+    @Bindable var viewModel: AuthViewModel
+    var appState: AppState
+
+    var body: some View {
+        VStack(spacing: 20) {
+            Text("Confirm Registration")
+                .font(.title2.bold())
+
+            if let msg = viewModel.registrationMessage {
+                Text(msg)
+                    .font(.subheadline)
+                    .foregroundStyle(.secondary)
+                    .multilineTextAlignment(.center)
+            }
+
+            TextField("Confirmation Code", text: $viewModel.confirmationCode)
+                .textFieldStyle(.roundedBorder)
+                .keyboardType(.numberPad)
+
+            if let error = viewModel.errorMessage {
+                Text(error)
+                    .foregroundStyle(.red)
+                    .font(.caption)
+            }
+
+            Button("Confirm") {
+                Task {
+                    await viewModel.confirmRegistration(appState: appState)
+                }
+            }
+            .buttonStyle(.borderedProminent)
+            .disabled(viewModel.isLoading)
+        }
+        .padding(32)
+    }
+}

ios_client/EncryptedChat/Views/Auth/PairingView.swift

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+import SwiftUI
+
+struct PairingView: View {
+    var appState: AppState
+    @State private var pairingCode = ""
+    @State private var isWaiting = false
+    @State private var statusMessage: String?
+
+    var body: some View {
+        VStack(spacing: 24) {
+            Image(systemName: "iphone.and.arrow.forward")
+                .font(.system(size: 48))
+                .foregroundStyle(.blue)
+
+            Text("Device Pairing")
+                .font(.title2.bold())
+
+            Text("Enter the 8-digit pairing code shown on your other device.")
+                .font(.subheadline)
+                .foregroundStyle(.secondary)
+                .multilineTextAlignment(.center)
+
+            TextField("Pairing Code", text: $pairingCode)
+                .textFieldStyle(.roundedBorder)
+                .keyboardType(.numberPad)
+                .frame(maxWidth: 200)
+
+            if let status = statusMessage {
+                Text(status)
+                    .font(.caption)
+                    .foregroundStyle(status.contains("Error") ? .red : .secondary)
+            }
+
+            if isWaiting {
+                ProgressView("Waiting for authorization...")
+            }
+
+            Button("Start Pairing") {
+                Task {
+                    // Pairing implementation would go here
+                    statusMessage = "Pairing not yet implemented"
+                }
+            }
+            .buttonStyle(.borderedProminent)
+            .disabled(pairingCode.count != 8 || isWaiting)
+        }
+        .padding(32)
+    }
+}

ios_client/EncryptedChat/Views/Auth/RegisterView.swift

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+import SwiftUI
+
+// Registration is handled within LoginView via mode toggle.
+// This file exists for potential future separation.