Update app_2.py

app_2.py

@@ -1,40 +1,52 @@
-import os, gradio as gr, mimetypes, threading
+import os, mimetypes, threading
+import gradio as gr
 from google import genai
 from google.genai import types
 
 client = genai.Client(api_key=os.environ["GEMINI_API_KEY"])
 MODEL = "gemini-3.1-flash-lite-preview"
 
-def model_chat(message, history, state):  # <- 3 args!
+def respond(message, history, state):
+    # state bleibt server-side (darf Python-Objekte enthalten)
     if state is None:
         state = {"chat": client.chats.create(model=MODEL), "lock": threading.Lock()}
 
+    text = (message or {}).get("text") or ""
+    files = (message or {}).get("files") or []
+
     parts = []
-    if message.get("text"):
-        parts.append(types.Part.from_text(text=message["text"]))
+    if text:
+        parts.append(types.Part.from_text(text=text))
 
-    for file_path in message.get("files") or []:
+    for file_path in files:
         mime, _ = mimetypes.guess_type(file_path)
         mime = mime or "application/octet-stream"
         with open(file_path, "rb") as f:
             parts.append(types.Part.from_bytes(data=f.read(), mime_type=mime))
 
     if not parts:
-        yield "Bitte Text oder Datei senden.", state
+        # nichts gesendet -> keine Änderung
+        yield history, state
         return
 
+    # User Nachricht in UI-Historie
+    history = (history or []) + [[text if text else "[Datei]", ""]]
+
     with state["lock"]:
         out = ""
         for chunk in state["chat"].send_message_stream(parts):
-            if chunk.text:
+            if getattr(chunk, "text", None):
                 out += chunk.text
-                yield out, state
-
-demo = gr.ChatInterface(
-    fn=model_chat,
-    multimodal=True,
-    additional_inputs=[gr.State(None)],
-    additional_outputs=[gr.State(None)],
-)
+                history[-1][1] = out
+                yield history, state
+
+with gr.Blocks() as demo:
+    gr.Markdown("# Gemini Thinking AI")
+    chatbot = gr.Chatbot(height=600)
+    msg = gr.MultimodalTextbox(placeholder="Schreib was oder lade Dateien hoch…", file_count="multiple")
+    state = gr.State(None)
+
+    msg.submit(respond, inputs=[msg, chatbot, state], outputs=[chatbot, state])
+    gr.Button("Clear").click(lambda: ([], None), outputs=[chatbot, state])
 
 demo.launch()