Update app.py

app.py

@@ -444,6 +444,10 @@ def start_feed(user_input, generate_video, current_index, feed_items):
     is_loading = True
     progress_html = generate_progress_html(0, f"Getting started with {user_input}... 🚀", user_input)
     share_links = ""
+    
+    # Ensure feed_items is a list
+    feed_items = feed_items if isinstance(feed_items, list) else []
+    print(f"start_feed: feed_items type={type(feed_items)}, value={feed_items}")
 
     try:
         # Generate ideas
@@ -509,6 +513,10 @@ def load_next(user_input, generate_video, current_index, feed_items):
     progress_html = generate_progress_html(0, f"Loading next {user_input} vibe... 🚀", user_input)
     share_links = ""
 
+    # Ensure feed_items is a list
+    feed_items = feed_items if isinstance(feed_items, list) else []
+    print(f"load_next: feed_items type={type(feed_items)}, value={feed_items}, current_index={current_index}")
+
     try:
         if current_index + 1 < len(feed_items):
             current_index += 1
@@ -572,13 +580,17 @@ def load_previous(user_input, generate_video, current_index, feed_items):
     """
     current_user_input = user_input if user_input.strip() else "trending"
     
+    # Ensure feed_items is a list
+    feed_items = feed_items if isinstance(feed_items, list) else []
+    print(f"load_previous: feed_items type={type(feed_items)}, value={feed_items}, current_index={current_index}")
+
     if current_index > 0:
         current_index -= 1
     feed_html = generate_html(feed_items, False, current_index, user_input, is_loading=False)
     share_links = generate_share_links(
-        feed_items[current_index]['image_base64'],
-        feed_items[current_index]['video_base64'],
-        feed_items[current_index]['text']
+        feed_items[current_index]['image_base64'] if feed_items else "",
+        feed_items[current_index]['video_base64'] if feed_items else None,
+        feed_items[current_index]['text'] if feed_items else ""
     )
     return current_user_input, current_index, feed_items, feed_html, share_links, False, ""
 
@@ -586,8 +598,8 @@ def generate_share_links(image_base64, video_base64, caption):
     """
     Generate share links for social media platforms with download links for image and video.
     """
-    image_data_url = f"data:image/png;base64,{image_base64}"
-    encoded_caption = urllib.parse.quote(caption)
+    image_data_url = f"data:image/png;base64,{image_base64}" if image_base64 else "#"
+    encoded_caption = urllib.parse.quote(caption if caption else "")
 
     download_links = f"""
         <p style="text-align: center; margin-bottom: 10px;">Download the media to share:</p>
@@ -614,7 +626,7 @@ def generate_share_links(image_base64, video_base64, caption):
                 text-decoration: none;
                 font-size: 14px;
                 font-weight: bold;
-                transition: background-color 0.3s;
+ esperienze                    transition: background-color 0.3s;
             " onmouseover="this.style.backgroundColor='#45a049'" onmouseout="this.style.backgroundColor='#4CAF50'">Download Video</a>
         """
     download_links += "</div>"
@@ -728,6 +740,10 @@ def generate_html(feed_items, scroll_to_latest=False, current_index=0, user_inpu
     """
     Generate an HTML string to display the current feed item or loading state.
     """
+    # Ensure feed_items is a list
+    feed_items = feed_items if isinstance(feed_items, list) else []
+    print(f"generate_html: feed_items type={type(feed_items)}, value={feed_items}, current_index={current_index}")
+
     if is_loading:
         return """
         <div id="feed-container" style="
@@ -864,7 +880,7 @@ with gr.Blocks(
 ) as demo:
     current_user_input = gr.State(value="")
     current_index = gr.State(value=0)
-    feed_items = gr.State(value=[])
+    feed_items = gr.State(value=[])  # Ensure initial value is an empty list
     is_loading = gr.State(value=False)
     share_links = gr.State(value="")