ChatView.swift

@MainActor
struct ChatView: View {

    @Bindable private var viewModel: ChatViewModel = ChatViewModel()

    var body: some View {
        NavigationStack {
            VStack {
                ChatMessagesList(viewModel: viewModel)

                if viewModel.error != nil {
                    ErrorView()
                }

                HStack {
                    MessageTextField(draftMessage: $viewModel.draftMessage)
                    SendMessageButton {
                        Task {
                            await viewModel.sendMessage()
                        }
                    }
                    .disabled(!viewModel.canSendMessage)
                }
                .padding(8)
            }
            .navigationTitle("Gemini Chat")
        }
    }
}