Add state transitions

run.py

@@ -1,10 +1,28 @@
+initialState="1"
+transitions=[
+[1,"When are your openin hours?","""We are at your disposal 24/7""",-1],
+[1,"I forgot my password",""""There is no password - just type "Login" and click on "Submit".""",-1],
+[2,"Cool, thank you so much.","""With pleasure. Please let me know if you have further questions?""",-1],
+[2,"I don't find the logout-button.","""Just type "Logout" in the text-box and click on "Submit".""",-1],
+[0,"Are you an AI?","""No, not really.""",-1]
+]
+
+conditions=[line[0] for line in transitions]
+intents=[line[1] for line in transitions]
+replies=[line[2] for line in transitions]
+consequences=[line[3] for line in transitions]
 
 import gradio as gr
 
-changeableElemNames=["Input Text","Submit","Button to State 2","Button to State 3","Button to State 4","Button to State 5","Button to State 6"] # Input Text, Submit Button and further buttons
+#changeableElemNames=["Input Text","Submit","Button to State 2","Button to State 3","Button to State 4","Button to State 5","Button to State 6"] # Input Text, Submit Button and further buttons
+changeableElemNames=["Input Text","Submit"]
+changeableElemNames.extend(intents) #[intents[i] for i in subsetIDs])
 elemIDs=list(range(len(changeableElemNames))) # IDs of elements 
-defaultElemIDs=list(range(0,len(changeableElemNames))) # IDs of elements visible at the beginnning
- 
+#defaultElemIDs=list(range(0,len(changeableElemNames))) 
+defaultElemIDs=[0,1]
+defaultElemIDs.extend([i+2 for i in range(len(conditions)) if conditions[i]<2]) # IDs of elements visible at the beginnning
+defaultElemIDs
+
 def toggler(visibility=defaultElemIDs):
    l=[]
    l.append(gr.Textbox(changeableElemNames[0],  visible=(0 in visibility)))
@@ -25,17 +43,29 @@ def respond(state, chat_history, visible_elemIDs,internal_state):
   previous_state = internal_state
   internal_state = state # in this example the internal state is set to the button clicked
   if(str(state) in [str(e) for e in visible_elemIDs]):  # react to Buttons
-    bot_message = f"I was in state \"{previous_state}\" and am now in state \"{internal_state}\". please click another button."
+    internal_state=previous_state # default is to not change the state
+    intent=intents[int(state)-2]
+    reply=replies[int(state)-2]
+    condition=conditions[int(state)-2]
+    consequence=consequences[int(state)-2]
+    if(int(consequence)>=0): internal_state=consequence # react to consequence if specified
+    bot_message = f"{reply}\n\n<i><small>[Debugging info: I was in state \"{previous_state}\" and am now in state \"{internal_state}\". please click another button.]</small></i>"
     #print("respond to button!")
-    chat_history.append((state, bot_message))
+    chat_history.append((intent, bot_message)) #((str(state), bot_message))
   else: # react to Text-Input
     internal_state="1"
-    bot_message = f"I was in state \"{previous_state}\" and am now in state \"{internal_state}\" and ready to process \"{state}\". please click another button."
+    if("Login" in state):internal_state="2"
+    if("Logout" in state):internal_state="1"
+    bot_message = f"I was in state \"{previous_state}\" and am now in state \"{internal_state}\" after processing \"{state}\". please click another button."
     #print("respond to text!")
     chat_history.append((str(state), bot_message))
     state="1"
-  visible_elemIDs= [e for e in visible_elemIDs 
-    if ((str(e) != str(internal_state))|(str(e)=="1")|(str(e)=="0"))] # delete some buttons
+  visible_elemIDs= [e for e in elemIDs 
+    #if ((str(e) != str(internal_state))|(str(e)=="1")|(str(e)=="0"))] # delete some buttons
+    if(
+      (str(e)=="1")|(str(e)=="0")|
+      (str(conditions[int(e)-2])=="0")|
+      (str(conditions[int(e)-2])==str(internal_state)))]
   if(len(visible_elemIDs)<=2): # if visible_elemIDs has length below 3, reset
     print("restore visibility to "+str(defaultElemIDs)) 
     visible_elemIDs=defaultElemIDs 
@@ -43,14 +73,14 @@ def respond(state, chat_history, visible_elemIDs,internal_state):
   return state, chat_history, visible_elemIDs, internal_state
 
 with gr.Blocks() as demo:
-  chatbot = gr.Chatbot(value=[[None, f"I'm in state \"0\". Please click a button!"]])
+  chatbot = gr.Chatbot(value=[[None, f"I'm in state \"{initialState}\". Please click a button!"]])
   changeableElems=toggler()
   for name, value in zip(changeableElemNames, changeableElems):
    globals()[name] = value
   hideInternals=True    
   internalState=gr.Radio(
     [str(e) for e in elemIDs],
-    value="0",
+    value=initialState,
     visible=hideInternals==False,
     label="Internal state") # determine internal state of the chatbot
   visibility=gr.Dropdown(