struct ChatUser {    let uid, email, profileImageUrl: String}class MainMessagesViewModel: ObservableObject {        @Published var errorMessage = ""    @Published var chatUser: ChatUser?        init() {        fetchCurrentUser()    }        private func fetchCurrentUser() {                guard let uid = FirebaseManager.shared.auth.currentUser?.uid else {            self.errorMessage = "Could not find firebase uid"            return        }                        FirebaseManager.shared.firestore.collection("users").document(uid).getDocument { snapshot, error in            if let error = error {                self.errorMessage = "Failed to fetch current user: \(error)"                print("Failed to fetch current user:", error)                return            }            //            self.errorMessage = "123"                        guard let data = snapshot?.data() else {                self.errorMessage = "No data found"                return                            }//            self.errorMessage = "Data: \(data.description)"            let uid = data["uid"] as? String ?? ""            let email = data["email"] as? String ?? ""            let profileImageUrl = data["profileImageUrl"] as? String ?? ""            self.chatUser = ChatUser(uid: uid, email: email, profileImageUrl: profileImageUrl)            //            self.errorMessage = chatUser.profileImageUrl                    }    }    }struct MainMessagesView: View {        @State var shouldShowLogOutOptions = false        @ObservedObject private var vm = MainMessagesViewModel()        var body: some View {        NavigationView {                        VStack {//                Text("User: \(vm.chatUser?.uid ?? "")")                                customNavBar                messagesView            }            .overlay(                newMessageButton, alignment: .bottom)            .navigationBarHidden(true)        }    }        private var customNavBar: some View {        HStack(spacing: 16) {                        WebImage(url: URL(string: vm.chatUser?.profileImageUrl ?? ""))                .resizable()                .scaledToFill()                .frame(width: 50, height: 50)                .clipped()                .cornerRadius(50)                .overlay(RoundedRectangle(cornerRadius: 44)                            .stroke(Color(.label), lineWidth: 1)                )                .shadow(radius: 5)                                    VStack(alignment: .leading, spacing: 4) {                let email = vm.chatUser?.email.replacingOccurrences(of: "@gmail.com", with: "") ?? ""                Text(email)                    .font(.system(size: 24, weight: .bold))                                HStack {                    Circle()                        .foregroundColor(.green)                        .frame(width: 14, height: 14)                    Text("online")                        .font(.system(size: 12))                        .foregroundColor(Color(.lightGray))                }                            }                        Spacer()            Button {                shouldShowLogOutOptions.toggle()            } label: {                Image(systemName: "gear")                    .font(.system(size: 24, weight: .bold))                    .foregroundColor(Color(.label))            }        }        .padding()        .actionSheet(isPresented: $shouldShowLogOutOptions) {            .init(title: Text("Settings"), message: Text("What do you want to do?"), buttons: [                .destructive(Text("Sign Out"), action: {                    print("handle sign out")                }),                    .cancel()            ])        }    }        private var messagesView: some View {        ScrollView {            ForEach(0..<10, id: \.self) { num in                VStack {                    HStack(spacing: 16) {                        Image(systemName: "person.fill")                            .font(.system(size: 32))                            .padding(8)                            .overlay(RoundedRectangle(cornerRadius: 44)                                        .stroke(Color(.label), lineWidth: 1)                            )                                                                        VStack(alignment: .leading) {                            Text("Username")                                .font(.system(size: 16, weight: .bold))                            Text("Message sent to user")                                .font(.system(size: 14))                                .foregroundColor(Color(.lightGray))                        }                        Spacer()                                                Text("22d")                            .font(.system(size: 14, weight: .semibold))                    }                    Divider()                        .padding(.vertical, 8)                }.padding(.horizontal)                            }.padding(.bottom, 50)        }    }        private var newMessageButton: some View {        Button {                    } label: {            HStack {                Spacer()                Text("+ New Message")                    .font(.system(size: 16, weight: .bold))                Spacer()            }            .foregroundColor(.white)            .padding(.vertical)                .background(Color.blue)                .cornerRadius(32)                .padding(.horizontal)                .shadow(radius: 15)        }    }}