update

README.md

@@ -4,7 +4,7 @@ emoji: 🏆
 colorFrom: pink
 colorTo: yellow
 sdk: gradio
-sdk_version: 6.0.1
+sdk_version: 5.50.0
 app_file: app.py
 pinned: false
 license: apache-2.0

app.py

@@ -5,6 +5,7 @@ import os
 from datetime import datetime
 from dotenv import load_dotenv
 import re
+from gradio_htmlplus import HTMLPlus # Import the custom component
 
 load_dotenv()
 
@@ -12,8 +13,6 @@ load_dotenv()
 DATASET_REPO_ID = "MCP-1st-Birthday/hackathon-community-voting"
 PROJECTS_FILE = "projects.csv"
 VOTES_FILE = "votes.csv"
-
-# Authentication with the token from Space secrets
 HF_TOKEN = os.getenv("HF_TOKEN")
 api = HfApi(token=HF_TOKEN)
 
@@ -22,19 +21,17 @@ TRACKS = ["Track 1: Building MCP", "Track 2: MCP in Action"]
 CATEGORIES = ["Enterprise", "Consumer", "Creative"]
 LEADERBOARD_VIEWS = ["Track 1 (Overall)", "Track 2 (Enterprise)", "Track 2 (Consumer)", "Track 2 (Creative)"]
 
-
-# DATA HANDLING FUNCTIONS
-
+# --- DATA HANDLING FUNCTIONS ---
 def load_data(filename, repo_id):
     """Loads a CSV from the dataset, or creates an empty DataFrame if it doesn't exist."""
     try:
         filepath = hf_hub_download(repo_id=repo_id, filename=filename, repo_type="dataset", token=HF_TOKEN)
-        return pd.read_csv(filepath)
+        return pd.read_csv(filepath, dtype={'track': str, 'category': str})
     except Exception:
         if filename == PROJECTS_FILE:
             return pd.DataFrame(columns=["space_url", "video_url", "track", "category", "submitted_by", "timestamp"])
         elif filename == VOTES_FILE:
-            return pd.DataFrame(columns=["space_url", "voted_by", "timestamp"])
+            return pd.DataFrame(columns=["space_url", "voted_by", "track", "category", "timestamp"])
         return pd.DataFrame()
 
 def save_data(df, filename, repo_id, commit_message):
@@ -42,199 +39,211 @@ def save_data(df, filename, repo_id, commit_message):
     temp_path = f"./{filename}"
     df.to_csv(temp_path, index=False)
     upload_file(
-        path_or_fileobj=temp_path,
-        path_in_repo=filename,
-        repo_id=repo_id,
-        repo_type="dataset",
-        token=HF_TOKEN,
-        commit_message=commit_message,
+        path_or_fileobj=temp_path, path_in_repo=filename, repo_id=repo_id, repo_type="dataset",
+        token=HF_TOKEN, commit_message=commit_message,
     )
     os.remove(temp_path)
 
-# CORE LOGIC
+# --- CORE LOGIC ---
+
+def get_username(request: gr.Request):
+    """Safely gets the username using the user's original, working method."""
+    return request.request.session.get('oauth_info', {}).get('userinfo', {}).get('preferred_username')
+
+def parse_view_to_context(filter_view: str):
+    """Helper to get track and category from the leaderboard view string."""
+    if "Track 1" in filter_view: return TRACKS[0], "Overall"
+    if "Track 2" in filter_view:
+        if "Enterprise" in filter_view: return TRACKS[1], "Enterprise"
+        if "Consumer" in filter_view: return TRACKS[1], "Consumer"
+        if "Creative" in filter_view: return TRACKS[1], "Creative"
+    return None, None
 
 def render_leaderboard(request: gr.Request, filter_view: str):
-    """
-    Renders the leaderboard HTML. It gets the user identity from the request object.
-    This is a "pure" rendering function without side-effects.
-    """
-    username = request.request.session['oauth_info']['userinfo']['preferred_username'] if hasattr(request.request, "session") and len(request.request.session) > 0 and 'userinfo' in request.request.session['oauth_info'] else None
-    if not username:
-        return "<h3>Please log in to view and vote on projects!</h3>", gr.update(choices=[], value=None)
-    
+    """Renders the leaderboard HTML, including a conditional Edit button."""
+    username = get_username(request)
     projects_df = load_data(PROJECTS_FILE, DATASET_REPO_ID)
     votes_df = load_data(VOTES_FILE, DATASET_REPO_ID)
+    vote_context_str = f"ℹ️ Your vote will be cast in the **'{filter_view}'** context."
 
     if projects_df.empty:
-        return "<h3>No projects have been submitted yet. Be the first!</h3>", gr.update(choices=[], value=None)
+        return "<h3>No projects submitted yet.</h3>", gr.update(choices=[], value=None), vote_context_str, gr.update(visible=False)
 
-    vote_counts = votes_df['space_url'].value_counts().reset_index()
-    vote_counts.columns = ['space_url', 'votes']
-    
-    full_leaderboard_df = pd.merge(projects_df, vote_counts, on="space_url", how="left").fillna(0)
-    full_leaderboard_df['votes'] = full_leaderboard_df['votes'].astype(int)
+    track_filter, category_filter = parse_view_to_context(filter_view)
+    display_df = pd.DataFrame()
 
-    # Filtering logic...
-    if filter_view == "Track 1 (Overall)":
-        filtered_df = full_leaderboard_df[full_leaderboard_df['track'] == TRACKS[0]]
-    elif filter_view == "Track 2 (Enterprise)":
-        filtered_df = full_leaderboard_df[(full_leaderboard_df['track'] == TRACKS[1]) & (full_leaderboard_df['category'] == 'Enterprise')]
-    elif filter_view == "Track 2 (Consumer)":
-        filtered_df = full_leaderboard_df[(full_leaderboard_df['track'] == TRACKS[1]) & (full_leaderboard_df['category'] == 'Consumer')]
-    elif filter_view == "Track 2 (Creative)":
-        filtered_df = full_leaderboard_df[(full_leaderboard_df['track'] == TRACKS[1]) & (full_leaderboard_df['category'] == 'Creative')]
-    else:
-        filtered_df = full_leaderboard_df[full_leaderboard_df['track'] == TRACKS[0]]
+    if track_filter == TRACKS[0]:
+        track1_projects = projects_df[projects_df['track'].str.contains(TRACKS[0], na=False)].copy()
+        if not track1_projects.empty:
+            track1_projects['display_category'] = track1_projects['category'].str.replace(';', ' | ')
+            track1_votes = votes_df[(votes_df['track'] == TRACKS[0]) & (votes_df['category'] == "Overall")]
+            vote_counts = track1_votes.groupby('space_url').size().reset_index(name='votes')
+            display_df = pd.merge(track1_projects, vote_counts, on='space_url', how='left').fillna(0)
+    
+    elif track_filter == TRACKS[1]:
+        projects_df['track'] = projects_df['track'].str.split(';')
+        exploded_tracks = projects_df.explode('track')
+        exploded_tracks['category'] = exploded_tracks['category'].str.split(';')
+        exploded_projects = exploded_tracks.explode('category')
+        track2_filtered = exploded_projects[(exploded_projects['track'] == track_filter) & (exploded_projects['category'] == category_filter)]
+        if not track2_filtered.empty:
+            context_votes = votes_df[(votes_df['track'] == track_filter) & (votes_df['category'] == category_filter)]
+            vote_counts = context_votes.groupby('space_url').size().reset_index(name='votes')
+            display_df = pd.merge(track2_filtered, vote_counts, on='space_url', how='left').fillna(0)
+            display_df['display_category'] = display_df['category']
+            
+    if display_df.empty:
+        return f"<h3>No projects submitted for '{filter_view}' yet.</h3>", gr.update(choices=[], value=None), vote_context_str, gr.update(visible=False)
 
-    if filtered_df.empty:
-        return f"<h3>No projects submitted for this view ('{filter_view}') yet.</h3>", gr.update(choices=[], value=None)
+    display_df['votes'] = display_df['votes'].astype(int)
+    display_df = display_df.sort_values(by="votes", ascending=False).reset_index(drop=True)
 
-    filtered_df = filtered_df.sort_values(by="votes", ascending=False).reset_index(drop=True)
-    html = "<div>" # HTML generation remains the same...
+    html = "<div>"
     trophies = {0: "🥇", 1: "🥈", 2: "🥉"}
-    for index, row in filtered_df.iterrows():
+    for index, row in display_df.iterrows():
         rank = trophies.get(index, f"<b>#{index + 1}</b>")
-        space_name = re.sub(r'https://huggingface.co/spaces/', '', row['space_url'])
+        space_name = re.sub(r'https://huggingface.co/spaces/', '', row["space_url"])
+        category_text = row["display_category"]
+        
+        action_button_html = ""
+        if username and row["submitted_by"] == username:
+            action_button_html = f'<a href="#" class="edit-button" data-url="{row["space_url"]}" style="text-decoration: none; font-size: 20px; margin-left: 15px;" title="Edit this project">✏️</a>'
+
         html += f"""
-        <div style="display: flex; align-items: center; padding: 12px; border-bottom: 1px solid #eee; gap: 15px;">
+        <div style="display: flex; align-items: center; padding: 12px; border-bottom: 1px solid #eee; gap: 15px;" data-space-url="{row['space_url']}">
             <div style="font-size: 24px; width: 50px;">{rank}</div>
             <div style="flex-grow: 1;">
                 <div style="font-weight: bold; font-size: 16px;">{space_name}</div>
                 <div style="font-size: 12px; color: #555;">
-                    <a href="{row['space_url']}" target="_blank">🚀 Space</a> | 
-                    <a href="{row['video_url']}" target="_blank">🎬 Video</a> |
-                    <span style="color: #777;">Track: {row['track'].split(':')[0]} | Category: {row['category']}</span>
+                    <a href="{row["space_url"]}" target="_blank">🚀 Space</a> | 
+                    <a href="{row["video_url"]}" target="_blank">🎬 Video</a> |
+                    <span style="color: #777;">Track: {row["track"].split(';')[0].split(':')[0]} | Categories: {category_text}</span>
                 </div>
             </div>
-            <div style="font-size: 20px; font-weight: bold; color: #3B82F6;">{row['votes']} votes</div>
+            <div style="font-size: 20px; font-weight: bold; color: #3B82F6;">{row["votes"]} votes</div>
+            {action_button_html}
         </div>
         """
     html += "</div>"
-    project_urls = filtered_df['space_url'].tolist()
-    return html, gr.update(choices=project_urls, value=None)
+    
+    project_urls = display_df['space_url'].unique().tolist()
+    return html, gr.update(choices=project_urls, value=None), vote_context_str, gr.update(visible=False)
 
 
-def submit_project(request: gr.Request, space_url, video_url, track, category):
-    """Adds a new project."""
-    username = request.request.session['oauth_info']['userinfo']['preferred_username'] if hasattr(request.request, "session") and len(request.request.session) > 0 and 'userinfo' in request.request.session['oauth_info'] else None
+def submit_project(request: gr.Request, space_url, video_url, selected_tracks, selected_categories):
+    username = get_username(request)
     if not username:
         gr.Info("Error: You must be logged in to submit a project.")
-        return gr.skip(), gr.skip(), gr.skip()
-    if not all([space_url, video_url, track, category]):
-        gr.Info("Error: All fields are required.")
-        return gr.skip(), gr.skip(), gr.skip()
-    if not ("huggingface.co/spaces/" in space_url and ("youtube.com/" in video_url or "youtu.be/" in video_url)):
-        gr.Info("Error: Please enter valid URLs from Hugging Face Spaces and YouTube.")
-        return gr.skip(), gr.skip(), gr.skip()
-
+        return gr.skip(), gr.skip(), gr.skip(), gr.skip()
+    if not all([space_url, video_url, selected_tracks, selected_categories]):
+        gr.Info("Error: All fields are required, including at least one track and one category.")
+        return gr.skip(), gr.skip(), gr.skip(), gr.skip()
     projects_df = load_data(PROJECTS_FILE, DATASET_REPO_ID)
-
     if space_url in projects_df['space_url'].values:
         gr.Info("Error: This project has already been submitted.")
-        return gr.skip(), gr.skip(), gr.skip()
-
-    new_project = pd.DataFrame([{"space_url": space_url, "video_url": video_url, "track": track, "category": category, "submitted_by": username, "timestamp": datetime.now().isoformat()}])
+        return gr.skip(), gr.skip(), gr.skip(), gr.skip()
+    tracks_str = ";".join(selected_tracks)
+    categories_str = ";".join(selected_categories)
+    new_project = pd.DataFrame([{"space_url": space_url, "video_url": video_url, "track": tracks_str, "category": categories_str, "submitted_by": username, "timestamp": datetime.now().isoformat()}])
     updated_projects = pd.concat([projects_df, new_project], ignore_index=True)
     save_data(updated_projects, PROJECTS_FILE, DATASET_REPO_ID, f"Project submitted by {username}")
-    
     gr.Info(f"✅ Success! Project '{space_url.split('/')[-1]}' submitted.")
-    
-    # After submission, refresh the leaderboard
-    html, dropdown_update = render_leaderboard(request, LEADERBOARD_VIEWS[0])
-    return f"Last action: Success.", html, dropdown_update
+    html, dropdown, context, edit_box_visibility = render_leaderboard(request, LEADERBOARD_VIEWS[0])
+    return f"Last action: Success.", html, dropdown, context
 
 
 def cast_vote(request: gr.Request, project_to_vote, filter_view):
-    """Registers a vote."""
-    username = request.request.session['oauth_info']['userinfo']['preferred_username'] if hasattr(request.request, "session") and len(request.request.session) > 0 and 'userinfo' in request.request.session['oauth_info'] else None
+    username = get_username(request)
     if not username:
         gr.Info("Error: You must be logged in to vote.")
         return gr.skip(), gr.skip(), gr.skip()
     if not project_to_vote:
         gr.Info("Error: Please select a project to vote for.")
         return gr.skip(), gr.skip(), gr.skip()
-
     votes_df = load_data(VOTES_FILE, DATASET_REPO_ID)
-
-    if not votes_df[(votes_df['space_url'] == project_to_vote) & (votes_df['voted_by'] == username)].empty:
-        gr.Info(f"Notice: You have already voted for '{project_to_vote.split('/')[-1]}'.")
+    vote_track, vote_category = parse_view_to_context(filter_view)
+    existing_vote = votes_df[(votes_df['space_url'] == project_to_vote) & (votes_df['voted_by'] == username) & (votes_df['track'] == vote_track) & (votes_df['category'] == vote_category)]
+    if not existing_vote.empty:
+        gr.Info(f"Notice: You have already voted for this project in the '{filter_view}' context.")
         return gr.skip(), gr.skip(), gr.skip()
-        
-    new_vote = pd.DataFrame([{"space_url": project_to_vote, "voted_by": username, "timestamp": datetime.now().isoformat()}])
+    new_vote = pd.DataFrame([{"space_url": project_to_vote, "voted_by": username, "track": vote_track, "category": vote_category, "timestamp": datetime.now().isoformat()}])
     updated_votes = pd.concat([votes_df, new_vote], ignore_index=True)
     save_data(updated_votes, VOTES_FILE, DATASET_REPO_ID, f"Vote cast by {username}")
+    gr.Info(f"✅ Vote successfully cast for '{project_to_vote.split('/')[-1]}' in '{filter_view}'!")
+    html, dropdown, context = render_leaderboard(request, filter_view)
+    return f"Last action: Success.", html, dropdown
 
-    gr.Info(f"✅ Vote successfully cast for '{project_to_vote.split('/')[-1]}'!")
 
-    # After voting, refresh the leaderboard with the current filter
-    html, dropdown_update = render_leaderboard(request, filter_view)
-    return f"Last action: Success.", html, dropdown_update
+def edit_project(request: gr.Request, old_space_url: str, new_space_url: str, new_video_url: str, filter_view: str):
+    username = get_username(request)
+    if not username:
+        gr.Info("Error: Authentication failed. Please log in again.")
+        return gr.skip(), gr.skip(), gr.skip(), gr.update(visible=False)
+    projects_df = load_data(PROJECTS_FILE, DATASET_REPO_ID)
+    votes_df = load_data(VOTES_FILE, DATASET_REPO_ID)
+    project_index = projects_df[(projects_df['space_url'] == old_space_url) & (projects_df['submitted_by'] == username)].index
+    if project_index.empty:
+        gr.Info("Error: You do not have permission to edit this project, or it no longer exists.")
+        return gr.skip(), gr.skip(), gr.skip(), gr.update(visible=False)
+    projects_df.loc[project_index, 'space_url'] = new_space_url
+    projects_df.loc[project_index, 'video_url'] = new_video_url
+    save_data(projects_df, PROJECTS_FILE, DATASET_REPO_ID, f"Project edited by {username}: {old_space_url} -> {new_space_url}")
+    if old_space_url != new_space_url:
+        votes_df.loc[votes_df['space_url'] == old_space_url, 'space_url'] = new_space_url
+        save_data(votes_df, VOTES_FILE, DATASET_REPO_ID, f"Vote URLs updated for project edit by {username}")
+    gr.Info("✅ Project URLs updated successfully! Votes have been preserved.")
+    html, dropdown, context, _ = render_leaderboard(request, filter_view)
+    return "Project edited.", html, dropdown, context, gr.update(visible=False)
 
-theme = gr.themes.Default(
-    primary_hue='blue',
-    secondary_hue='yellow',
-    neutral_hue='neutral'
-).set(
-    body_background_fill='*neutral_100',
-    body_background_fill_dark='*neutral_800',
-    body_text_color='*neutral_700',
-    body_text_color_dark='*neutral_200',
-    body_text_size='1.1em',
-    code_background_fill='*neutral_100',
-    code_background_fill_dark='*neutral_800',
-    shadow_drop='2px 2px 4px *neutral_400',
-    block_label_background_fill='*neutral_100',
-    block_label_background_fill_dark='*neutral_800',
-    block_label_text_color='*neutral_700',
-    block_label_text_color_dark='*neutral_200',
-    block_title_text_color='*primary_700',
-    block_title_text_color_dark='*primary_300',
-    panel_background_fill='*neutral_50',
-    panel_background_fill_dark='*neutral_900',
-    panel_border_color='*neutral_200',
-    panel_border_color_dark='*neutral_700',
-    checkbox_border_color='*neutral_300',
-    checkbox_border_color_dark='*neutral_600',
-    input_background_fill='white',
-    input_background_fill_dark='*neutral_800',
-    input_border_color='*neutral_300',
-    input_border_color_dark='*neutral_600',
-    slider_color='*primary_500',
-    slider_color_dark='*primary_400',
-    button_primary_background_fill='*primary_600',
-    button_primary_background_fill_dark='*primary_500',
-    button_primary_background_fill_hover='*primary_700',
-    button_primary_background_fill_hover_dark='*primary_600',
-    button_primary_text_color='white',
-    button_primary_text_color_dark='white',
-    button_secondary_background_fill='*secondary_400',
-    button_secondary_background_fill_dark='*secondary_500',
-    button_secondary_background_fill_hover='*secondary_500',
-    button_secondary_background_fill_hover_dark='*secondary_600',
-    button_secondary_text_color='*neutral_700',
-    button_secondary_text_color_dark='*neutral_200',
-    button_cancel_background_fill='*neutral_200',
-    button_cancel_background_fill_dark='*neutral_700',
-    button_cancel_background_fill_hover='*neutral_300',
-    button_cancel_background_fill_hover_dark='*neutral_600',
-    button_cancel_text_color='*neutral_700',
+# --- THEME ---
+theme = gr.themes.Default(primary_hue='blue', secondary_hue='yellow', neutral_hue='neutral').set(
+    body_background_fill='*neutral_100', body_background_fill_dark='*neutral_800', body_text_color='*neutral_700', 
+    body_text_color_dark='*neutral_200', body_text_size='1.1em', code_background_fill='*neutral_100', 
+    code_background_fill_dark='*neutral_800', shadow_drop='2px 2px 4px *neutral_400', block_label_background_fill='*neutral_100', 
+    block_label_background_fill_dark='*neutral_800', block_label_text_color='*neutral_700', block_label_text_color_dark='*neutral_200',
+    block_title_text_color='*primary_700', block_title_text_color_dark='*primary_300', panel_background_fill='*neutral_50', 
+    panel_background_fill_dark='*neutral_900', panel_border_color='*neutral_200', panel_border_color_dark='*neutral_700',
+    checkbox_border_color='*neutral_300', checkbox_border_color_dark='*neutral_600', input_background_fill='white', 
+    input_background_fill_dark='*neutral_800', input_border_color='*neutral_300', input_border_color_dark='*neutral_600',
+    slider_color='*primary_500', slider_color_dark='*primary_400', button_primary_background_fill='*primary_600', 
+    button_primary_background_fill_dark='*primary_500', button_primary_background_fill_hover='*primary_700', 
+    button_primary_background_fill_hover_dark='*primary_600', button_primary_text_color='white', 
+    button_primary_text_color_dark='white', button_secondary_background_fill='*secondary_400', 
+    button_secondary_background_fill_dark='*secondary_500', button_secondary_background_fill_hover='*secondary_500', 
+    button_secondary_background_fill_hover_dark='*secondary_600', button_secondary_text_color='*neutral_700', 
+    button_secondary_text_color_dark='*neutral_200', button_cancel_background_fill='*neutral_200', 
+    button_cancel_background_fill_dark='*neutral_700', button_cancel_background_fill_hover='*neutral_300', 
+    button_cancel_background_fill_hover_dark='*neutral_600', button_cancel_text_color='*neutral_700', 
     button_cancel_text_color_dark='*neutral_200'
 )
 
-with gr.Blocks(title="Hackathon Community Choice") as app:
+# --- GRADIO INTERFACE ---
+with gr.Blocks(theme=theme, title="Hackathon Community Choice") as app:
     gr.Markdown("# 🏆 Hackathon Community Choice Award")
     gr.Markdown("Vote for your favorite hackathon projects! Please log in to participate.")
-    
     gr.LoginButton()
 
     with gr.Tabs() as tabs:
         with gr.TabItem("🏆 Leaderboard & Vote", id=0):
             leaderboard_filter = gr.Radio(LEADERBOARD_VIEWS, label="Select Leaderboard View", value=LEADERBOARD_VIEWS[0])
+            with gr.Group(visible=False) as edit_group:
+                gr.Markdown("### Edit Project URLs")
+                edit_old_url = gr.Textbox(label="Original Space URL", interactive=False)
+                edit_new_url = gr.Textbox(label="New Space URL")
+                edit_new_video_url = gr.Textbox(label="New Video URL")
+                with gr.Row():
+                    save_edit_button = gr.Button("Save Changes", variant="primary")
+                    cancel_edit_button = gr.Button("Cancel")
+            
             with gr.Row():
                 with gr.Column(scale=2):
-                    leaderboard_html = gr.HTML("Please log in to load...")
+                    leaderboard_html = HTMLPlus(
+                        "Please log in to load...",
+                        selectable_elements=[".edit-button"]
+                    )
                 with gr.Column(scale=1):
-                    gr.Markdown("### Cast Your Vote!")
+                    gr.Markdown("### Cast Your Vote")
+                    vote_context_display = gr.Markdown()
                     vote_status = gr.Markdown()
                     project_dropdown = gr.Dropdown(label="Select a Project to Vote For", interactive=True)
                     vote_button = gr.Button("👍 Vote for Selected Project", variant="primary")
@@ -244,43 +253,37 @@ with gr.Blocks(title="Hackathon Community Choice") as app:
             submission_status = gr.Markdown()
             space_url_input = gr.Textbox(label="Your Hugging Face Space URL", placeholder="https://huggingface.co/spaces/...")
             video_url_input = gr.Textbox(label="Your Demo Video URL (YouTube)", placeholder="https://www.youtube.com/watch?v=...")
-            track_radio = gr.Radio(TRACKS, label="Select Your Track")
-            category_dropdown = gr.Dropdown(CATEGORIES, label="Select Your Category")
+            track_checkboxes = gr.CheckboxGroup(TRACKS, label="Select Your Track(s)")
+            category_checkboxes = gr.CheckboxGroup(CATEGORIES, label="Select Your Category(s)")
             submit_button = gr.Button("Submit Project", variant="primary")
 
-    # Event Handling
-    
+    # --- Event Handling ---
     def handle_page_load(request: gr.Request, filter_view: str):
-        """Called only on app.load. Gives welcome message and renders."""
-        username = request.request.session['oauth_info']['userinfo']['preferred_username'] if hasattr(request.request, "session") and len(request.request.session) > 0 and 'userinfo' in request.request.session['oauth_info'] else None
+        username = get_username(request)
         if username:
             gr.Info(f"Welcome, {username}!")
         return render_leaderboard(request, filter_view)
 
-    # The page load triggers the first render and welcome message.
-    app.load(
-        fn=handle_page_load,
-        inputs=[leaderboard_filter],
-        outputs=[leaderboard_html, project_dropdown]
-    )
-    
-    # When the user changes the filter, re-render the leaderboard (no welcome message).
-    leaderboard_filter.change(
-        fn=render_leaderboard,
-        inputs=[leaderboard_filter],
-        outputs=[leaderboard_html, project_dropdown]
-    )
+    def cancel_edit():
+        return gr.update(visible=False), "", "", ""
+
+    def handle_leaderboard_click(evt: gr.SelectData):
+        if evt.index == ".edit-button":
+            project_to_edit_url = evt.value.get("url")
+            if project_to_edit_url:
+                projects_df = load_data(PROJECTS_FILE, DATASET_REPO_ID)
+                project_data = projects_df[projects_df['space_url'] == project_to_edit_url].iloc[0]
+                return gr.update(visible=True), project_data['space_url'], project_data['space_url'], project_data['video_url']
+        return gr.skip(), gr.skip(), gr.skip(), gr.skip()
+
+    app.load(fn=handle_page_load, inputs=[leaderboard_filter], outputs=[leaderboard_html, project_dropdown, vote_context_display, edit_group])
+    leaderboard_filter.change(fn=render_leaderboard, inputs=[leaderboard_filter], outputs=[leaderboard_html, project_dropdown, vote_context_display, edit_group])
+    submit_button.click(fn=submit_project, inputs=[space_url_input, video_url_input, track_checkboxes, category_checkboxes], outputs=[submission_status, leaderboard_html, project_dropdown, vote_context_display])
+    vote_button.click(fn=cast_vote, inputs=[project_dropdown, leaderboard_filter], outputs=[vote_status, leaderboard_html, project_dropdown])
     
-    submit_button.click(
-        fn=submit_project,
-        inputs=[space_url_input, video_url_input, track_radio, category_dropdown],
-        outputs=[submission_status, leaderboard_html, project_dropdown]
-    )
+    leaderboard_html.select(fn=handle_leaderboard_click, outputs=[edit_group, edit_old_url, edit_new_url, edit_new_video_url])
     
-    vote_button.click(
-        fn=cast_vote,
-        inputs=[project_dropdown, leaderboard_filter],
-        outputs=[vote_status, leaderboard_html, project_dropdown]
-    )
+    save_edit_button.click(fn=edit_project, inputs=[edit_old_url, edit_new_url, edit_new_video_url, leaderboard_filter], outputs=[submission_status, leaderboard_html, project_dropdown, vote_context_display, edit_group])
+    cancel_edit_button.click(fn=cancel_edit, outputs=[edit_group, edit_old_url, edit_new_url, edit_new_video_url])
     
-app.launch(theme=theme)
+app.launch()

requirements.txt

@@ -1,4 +1,5 @@
-#gradio==5.50.0
-#gradio[oauth]==5.50.0
+gradio==5.50.0
+gradio[oauth]==5.50.0
+gradio_htmlplus
 pandas
 python-dotenv