fix refresh not reset visible counter bug

app.py

@@ -156,6 +156,7 @@ def detect_features(image_paths, garment_type, language="English"):
 def generate(*data):
     global visible
     print("visible", visible)
+    
 
     feature, image, garment_type, model, temperature, excluded_words, included_words = data[:7]
     struct_ref = data[7:]
@@ -181,7 +182,10 @@ def generate(*data):
     batch = []
     for i in range(visible + 1):
         structure = struct_ref[2 * i]
-        reference = struct_ref[2 * i + 1]   
+        reference = struct_ref[2 * i + 1]  
+        if len((structure + reference).strip()) == 0:
+            visible = i 
+            break
         messages = [
             SystemMessage(content=f"""You are a helpful assistant that writes about products for ecommerce websites."""),
             HumanMessage(content=f"""Write a product description with the following features.
@@ -259,6 +263,8 @@ def show_advanced(model, temperature):
 
 
 with gr.Blocks() as demo:
+    visible = 0
+    print("Building interface")
     with gr.Row():
         with gr.Column():
             feature = gr.Textbox(label="Features", value=feature_text, lines=3, interactive=True)
@@ -275,6 +281,7 @@ with gr.Blocks() as demo:
                 # advanced = gr.Button(value="Advanced")
             
         with gr.Column():
+            visible = 0
             struct_ref = [val for i in range(10) for val in 
                           [gr.Textbox(label=f"Structure {i}", lines=10, value="", interactive=True, visible=i <= visible), 
                            gr.Textbox(label=f"Reference copy {i}", lines=3, value="", interactive=True, visible=i <= visible)]]