Change variable in other class and update view - swift

Question

First: Iam new to swift/swiftui
Problem: trying to update a published var:String in a observableOjbect class from a function. That var is used to for a switch later in a view.
I followed some inputs i found on my google research, but it doesnt work for me and i cant figure out why.
I tried #ObservedObjects, #EnvironmentObject, #StateObject, but i cant figure out how the string can be changed - in the view it always stays "x". getBotResponse(message: messageText) is called from another view / textField. My goal is to let the bot answer text, or with prepared buttons or images. depending on the input, the string should change to a "keyword" which is used as switch in the view to show other "view" modules i prepared.
class ChatBotVariables: ObesrvableObject{
#Published var answerCase: String = "x"
#Published var showFurtherContent: Bool = false
}
func getBotResponse(message: String) -> String {
let tempMessage = message.lowercased()
#ObservedObject var tempAnswerCase = ChatBotVariables()
if tempMessage.contains("textA"){
tempAnswerCase.answerCase = "text"
return "some text for BotAnswer"
}else if tempMessage.contains("textA"){
tempAnswerCase.answerCase = "video"
tempAnswerCase.showFurtherContent.toggle()
return "some other text for BotAnswer"
}else{
tempAnswerCase.answerCase = "questionbox"
tempAnswerCase.showFurtherContent.toggle()
return "something else"
}
}
struct ChatBot: View {
//happyBar
#State var _ratio = 60.0;
#State var _start : Bool = false;
#State private var messageText = ""
#State var messages: [String] = [""]
#State public var messageProperty = "Y"
#State private var botWriting = false
#State private var textInputEnabled = false
#ObservedObject var vm = MainMessagesViewModel() //reference to MMVM
#StateObject var cbl = ChatBotVariables()
#State var _case: String = "text"
//&#EnvironmentObject var cbl: ChatBotVariables
//#StateObject var showFurtherContent: Bool = false
init() {
initChatbot()
}
var body: some View {
NavigationView {
VStack {
ScrollView{
ForEach(messages, id: \.self){ message in
if message.contains("[USER]"){
let newMessage = message.replacingOccurrences(of:"[USER]", with: "")
HStack{
Spacer()
Text(newMessage)
.padding()
.foregroundColor(Color.white)
.background(.blue.opacity(0.8))
.cornerRadius(10)
.padding(.horizontal, 16)
.padding(.bottom, 10)
}
}else{
HStack{
Text(message)
.padding()
.background(.gray.opacity(0.15))
.cornerRadius(10)
.padding(.horizontal, 16)
.padding(.bottom, 10)
Spacer()
}
}
}.rotationEffect(.degrees(180))
if cbl.showFurtherContent {
switch cbl.$answerCase{
case "emoji":
print("asdf4")
break;
case "video":
print("asdf2")
break;
case "yesno":
print("asdf")
break;
default:
()
break;
}
cbl.showFurtherContent.toggle()
}
}.rotationEffect(.degrees(180))
.background(Color.gray.opacity(0.10))
if(messages.count > 1){
let mCount = messages.count
Text("count: \(mCount) answer: \(cbl.answerCase) Property: \(messageProperty)")
}
HStack {
if botWriting{
Image(systemName: "ellipsis.bubble.fill")
.font(.system(size: 26))
.foregroundColor(Color.blue)
}
}
Spacer()
// Show / Hide Text input bar
if textInputEnabled{
VStack{
HStack{
TextField("Text eingeben", text: $messageText)
.padding()
.background(Color.gray.opacity(0.1))
.cornerRadius(10)
.onSubmit{
sendMessage(message: messageText)
//switchHappyBar() // Debug
}
.padding(EdgeInsets(top: 0, leading: 20, bottom: 0, trailing: 0))
Button{
sendMessage(message: messageText)
//switchHappyBar() // Debug
}label:{
Image(systemName: "paperplane.fill")
}
.font(.system(size: 26))
.padding(EdgeInsets(top: 0, leading: 0, bottom: 0, trailing: 20))
}
HStack{
Button{
// Show Options For text
}label:{
Image(systemName: "questionmark.circle")
}
.font(.system(size: 26))
.padding(EdgeInsets(top: 0, leading: 20, bottom: 0, trailing: 0))
Spacer()
Button{
textInputEnabled.toggle()
}label:{
Image(systemName: "keyboard.chevron.compact.down")
}
.font(.system(size: 26))
.padding(EdgeInsets(top: 0, leading: 0, bottom: 0, trailing: 50))
Spacer()
}
}
}else{
HStack{
Button{
textInputEnabled.toggle()
}label:{
Image(systemName: "keyboard")
}
.font(.system(size: 26))
}
}
}
.navigationBarHidden(true)
}
}
func initChatbot(){
messages.append("Hallo \(vm.chatUser?.email ?? ""), wie geht es dir heute INIT?")
}
func sendMessage(message: String){
withAnimation{
messages.append("[USER]" + message)
self.messageText = ""
botWriting.toggle()
}
DispatchQueue.main.asyncAfter(deadline: .now() + 1){
withAnimation{
messages.append(getBotResponse(message: message))
botWriting.toggle()
}
}
}
}