Update DocuChat.py

DocuChat.py

@@ -17,7 +17,6 @@ pn.extension()
 file_input = pn.widgets.FileInput(height=45)
 openaikey = pn.widgets.PasswordInput(value="", placeholder="Enter your OpenAI API Key here...", height=45)
 chatbox = pn.widgets.ChatBox(height=300, primary_name="User")
-ask_button = pn.widgets.Button(name="Ask", width=100)
 
 def remove_empty_lines(text):
     lines = re.split(r'\r\n|\r|\n', text)
@@ -35,18 +34,27 @@ def qa(file, query):
     result = qa({"query": query})
     return result['result']
 
-def ask_question():
-    os.environ["OPENAI_API_KEY"] = openaikey.value
-    if file_input.value is not None:
-        file_input.save("/.cache/temp.pdf")
-        prompt_text = remove_empty_lines(chatbox.value[-1][chatbox.primary_name])
-        if prompt_text:
-            result = qa(file="/.cache/temp.pdf", query=prompt_text)
-            new_value = chatbox.value.copy()
-            new_value.append({"AI": result})
-            chatbox.value = new_value
+def qa_result(event):
+    print("Debugging: Event triggered")  # Debugging Line 0
+    if len(event.new) > len(event.old):
+        os.environ["OPENAI_API_KEY"] = openaikey.value
+        if file_input.value is not None:
+            file_input.save("/.cache/temp.pdf")
+            prompt_text = remove_empty_lines(event.new[-1][chatbox.primary_name])
+            print("Debugging: Prompt text:", prompt_text)  # Debugging Line 1
+            print("Debugging: Chat input from user:", event.new[-1][chatbox.primary_name])  # Debugging Line 1.1
+            if prompt_text:
+                print("Debugging: Calling Langchain")  # Debugging Line 2
+                result = qa(file="/.cache/temp.pdf", query=prompt_text)
+                print("Debugging: Result from Langchain:", result)  # Debugging Line 3
+                # Append the AI's response to the chatbox
+                new_value = chatbox.value.copy()  # Copy the existing value
+                new_value.append({"AI": result})   # Append the AI's response
+                chatbox.value = new_value          # Assign the new value
+                print("Debugging: Appended result to chatbox")  # Debugging Line 4
 
-ask_button.on_click(ask_question)
+
+chatbox.param.watch(qa_result, 'value')
 
 layout = pn.Column(
     pn.pane.Markdown("""
@@ -54,7 +62,6 @@ layout = pn.Column(
     AI-Powered Query Engine for Document Insights (powered by LangChain & OpenAI)
     ...
     """),
-    pn.Row(file_input, openaikey),
-    chatbox,
-    ask_button
-).servable()
+    pn.Row(file_input, openaikey), chatbox
+).servable()
+print("Debugging: Application is ready")  # Debugging Line 4