ChatViewModel.swift

@MainActor
@Observable
class ChatViewModel {
  // ...
  
  var scrollPosition: UUID? = nil
  
  func sendMessage() {
    guard canSendMessage else { return }
    // In a real chat app this would make a server call to send the message
    let message = Message(role: .sender, text: draftMessage)
    messages.append(message)
    scrollPosition = message.id // Set scroll position to newly sent message
    draftMessage.removeAll()
   }
}