Handle history

app.py

@@ -47,11 +47,20 @@ def bot_streaming(message, history):
     elif len(message.files) > 1:
       image = [msg.path for msg in message.files]
   else:
-    # if there's no image uploaded for this turn, look for images in the past turns
-    # kept inside tuples, take the last one
-    for hist in history:
-      if type(hist[0])==tuple:
-        image = hist[0][0]
+      
+    def has_file_data(lst):
+      return any(isinstance(item, FileData) for sublist in lst if isinstance(sublist, tuple) for item in sublist)
+
+    def extract_paths(lst):
+        return [item.path for sublist in lst if isinstance(sublist, tuple) for item in sublist if isinstance(item, FileData)]
+
+    latest_text_only_index = -1
+
+    for i, item in enumerate(history):
+        if all(isinstance(sub_item, str) for sub_item in item):
+            latest_text_only_index = i
+
+    image = [path for i, item in enumerate(history) if i < latest_text_only_index and has_file_data(item) for path in extract_paths(item)]
 
   if message.files is None:
       gr.Error("You need to upload an image or video for LLaVA to work.")