added reset button, create new session button, and change session

app.py

@@ -8,8 +8,11 @@ from io import BytesIO
 from pydub import AudioSegment
 
 
+LOCAL_API_ENDPOINT = "http://localhost:5000"
+PUBLIC_API_ENDPOINT = "http://121.176.153.117:5000"
+
 def create_chat_session():
-    r = requests.post("http://121.176.153.117:5000/create")
+    r = requests.post(PUBLIC_API_ENDPOINT + "/create")
         
     if (r.status_code != 201):
         raise Exception("Failed to create chat session")
@@ -23,6 +26,19 @@ def create_chat_session():
 session_id = create_chat_session()
 chat_history = []
 
+def create_new_or_change_session(history, id):
+    global session_id
+    global chat_history
+
+    if id == "":
+        session_id = create_chat_session()
+        history = []
+    else:
+        history, _ = change_session(history, id)
+
+    chat_history = history
+
+    return history, gr.update(value="", interactive=False)
 
 def add_text(history, text):
     history = history + [(text, None)]
@@ -43,7 +59,7 @@ def add_audio(history, audio):
     history = history + [((f"temp_audio/{session_id}/audio_input_{audio_id}.mp3",), None)]
 
     response = requests.post(
-        "http://121.176.153.117:5000/transcribe",
+        PUBLIC_API_ENDPOINT + "/transcribe",
         files={'audio': audio_file.getvalue()}
     )
 
@@ -56,6 +72,21 @@ def add_audio(history, audio):
 
     return history, gr.update(value="", interactive=False)
 
+def reset_chat_session(history):
+    global session_id
+    global chat_history
+
+    response = requests.post(
+        PUBLIC_API_ENDPOINT + f"/reset/{session_id}"
+    )
+
+    if (response.status_code != 200):
+        raise Exception(response.text)
+    
+    history = []
+    chat_history = []
+
+    return history
 
 def bot(history):
     if type(history[-1][0]) == str:
@@ -64,7 +95,7 @@ def bot(history):
         message = history[-2][0]
 
     response = requests.post(
-        f"http://121.176.153.117:5000/send/text/{session_id}",
+        PUBLIC_API_ENDPOINT + f"/send/text/{session_id}",
         headers={'Content-type': 'application/json'},
         json={
             'message': message,
@@ -93,6 +124,52 @@ def bot(history):
 
     return history
 
+def change_session(history, id):
+    global session_id
+    global chat_history
+
+    response = requests.get(
+        PUBLIC_API_ENDPOINT + f"/{id}"
+    )
+
+    if (response.status_code != 200):
+        raise Exception(response.text)
+    
+    response = response.json()
+
+    session_id = id
+
+    history = []
+
+    try:
+        for chat in response:
+            if chat['role'] == 'user':
+                if chat['audio'] != "":
+                    audio_bytes = base64.b64decode(chat['audio'].encode('utf-8'))
+                    audio_file = BytesIO(audio_bytes)
+                    audio_id = secrets.token_hex(8)
+                    AudioSegment.from_file(audio_file).export(f"temp_audio/{id}/audio_input_{audio_id}.mp3", format="mp3")
+                    history = history + [((f"temp_audio/{id}/audio_input_{audio_id}.mp3",), None)]
+                history = history + [(chat['message'], None)]
+            elif chat['role'] == 'assistant':
+                audio_bytes = base64.b64decode(chat['audio'].encode('utf-8'))
+                audio_file = BytesIO(audio_bytes)
+                audio_id = secrets.token_hex(8)
+                AudioSegment.from_file(audio_file).export(f"temp_audio/{id}/audio_input_{audio_id}.mp3", format="mp3")
+
+                history = history + [(None, (f"temp_audio/{id}/audio_input_{audio_id}.mp3",))]
+                history = history + [(None, chat['message'])]
+            else:
+                raise Exception("Invalid chat role")
+    except Exception as e:
+        raise Exception(f"Response: {response}")
+
+    chat_history = history.copy()
+
+    print(f"len(chat_history): {len(chat_history)}\nlen(history): {len(history)}\nlen(response): {len(response)}")
+
+    return history, gr.update(value="", interactive=False)
+
 def load_chat_history(history):
     global chat_history
     if len(chat_history) > len(history):
@@ -101,6 +178,18 @@ def load_chat_history(history):
 
 
 with gr.Blocks() as demo:
+    with gr.Row():
+        # change session id
+        change_session_txt = gr.Textbox(
+            show_label=False,
+            placeholder=session_id,
+        ).style(container=False)
+    with gr.Row():
+        # button to create new or change session id
+        change_session_button = gr.Button(
+            "Create new or change session", type='success', size="sm"
+        ).style(margin="0 10px 0 0", container=False)
+
     chatbot = gr.Chatbot([], elem_id="chatbot").style(height=750)
 
     demo.load(load_chat_history, [chatbot], [chatbot], queue=False)
@@ -116,6 +205,12 @@ with gr.Blocks() as demo:
                 source="microphone", type="numpy", show_label=False, format="mp3"
             ).style(container=False)
 
+    
+    with gr.Row():
+        reset_button = gr.Button(
+            "Reset Chat Session", type='stop', size="sm"
+        ).style(margin="0 10px 0 0", container=False)
+
     txt_msg = txt.submit(add_text, [chatbot, txt], [chatbot, txt], queue=False).then(
         bot, chatbot, chatbot
     )
@@ -126,4 +221,12 @@ with gr.Blocks() as demo:
     )
     audio_msg.then(lambda: gr.update(interactive=True, value=None), None, [audio], queue=False)
 
+    reset_button.click(reset_chat_session, [chatbot], [chatbot], queue=False)
+
+    chgn_msg = change_session_txt.submit(change_session, [chatbot, change_session_txt], [chatbot, change_session_txt], queue=False)
+    chgn_msg.then(lambda: gr.update(interactive=True, placeholder=session_id), None, [change_session_txt], queue=False)
+
+    create_new_or_change_session_btn = change_session_button.click(create_new_or_change_session, [chatbot, change_session_txt], [chatbot, change_session_txt], queue=False)
+    create_new_or_change_session_btn.then(lambda: gr.update(interactive=True, placeholder=session_id), None, [change_session_txt], queue=False)
+
 demo.launch(show_error=True)