Update app.py

app.py

@@ -8,6 +8,7 @@ Unified Online/Offline AI Quiz Game with Friends, Chat, Presence, Invites.
 - FIREBASE_DB_URL is set to your Firebase project's Realtime DB (from your screenshot)
 """
 import requests
+import csv
 import os
 import uuid
 import time
@@ -1097,7 +1098,17 @@ def play_page():
                     "correct_flags": json.dumps(flags),
                 }
                 unified_push_leaderboard(row)
-                save_score_to_csv(row)
+                save_score_to_csv(
+                    name=row["name"],
+                    score=row["score"],
+                    game_id=row["game_id"],
+                    topics=row["topics"],
+                    avatar=row["avatar"],
+                    questions=row["questions"],
+                    answers=row["answers"],
+                    correct_flags=row["correct_flags"]
+                )
+
 
                 # ---------------- AUTO CLOSE GAME ----------------
                 if game.get("auto_close", True):
@@ -1254,77 +1265,43 @@ def inbox_page():
                 else:
                     st.error(msg)
 
-# Leaderboard page
-# ----------------- Leaderboard Page -----------------
 def leaderboard_page():
-    import os, csv
-    import streamlit as st
-    from datetime import datetime
-
     st.header("🏆 Leaderboard")
 
-    # ---------------- File check ----------------
-    if not os.path.exists(LEADERBOARD_FILE):
+    rows = unified_get("leaderboard") or []
+    if not rows:
         st.info("No scores yet.")
         return
 
-    # ---------------- Download CSV ----------------
-    with open(LEADERBOARD_FILE, "rb") as f:
-        st.download_button(
-            "⬇ Download Leaderboard CSV",
-            f,
-            file_name="leaderboard.csv",
-            mime="text/csv"
-        )
-
-    # ---------------- Read CSV ----------------
-    leaderboard = []
-    with open(LEADERBOARD_FILE, "r", encoding="utf-8") as f:
-        reader = csv.DictReader(f)
-        leaderboard = list(reader)
-
-    if not leaderboard:
-        st.info("No scores yet.")
-        return
+    df = pd.DataFrame(rows)
 
-    # Convert score to int (CSV reads as string)
-    for r in leaderboard:
-        r["score"] = int(r.get("score", 0))
+    # Safe types
+    df["score"] = pd.to_numeric(df["score"], errors="coerce").fillna(0).astype(int)
+    df["timestamp"] = pd.to_datetime(df["timestamp"], errors="coerce")
 
-    # ---------------- Sort by score ----------------
-    leaderboard = sorted(leaderboard, key=lambda x: x["score"], reverse=True)
+    df = df.sort_values(by="score", ascending=False)
 
-    # ---------------- Top 10 ----------------
-    st.subheader("Top Players")
-    for i, row in enumerate(leaderboard[:10], 1):
+    st.subheader("Top Players (All Time)")
+    for i, r in enumerate(df.head(10).to_dict("records"), 1):
         st.write(
-            f"{i}. {row.get('avatar','🎮')} **{row.get('name','Guest')}** "
-            f"(Game {row.get('game_id','')}) — {row.get('score',0)} pts"
+            f"{i}. {r.get('avatar','🎮')} **{r['name']}** "
+            f"(Game {r['game_id']}) — {r['score']} pts"
         )
 
-    # ---------------- Weekly Leaderboard ----------------
-    st.subheader("Weekly Leaderboard (Top 10)")
-    current_week = datetime.now().isocalendar()[1]
-
-    weekly = []
-    for r in leaderboard:
-        try:
-            ts = datetime.fromisoformat(r.get("timestamp", ""))
-            if ts.isocalendar()[1] == current_week:
-                weekly.append(r)
-        except Exception:
-            pass
+    # Weekly leaderboard
+    st.subheader("Weekly Leaderboard")
+    one_week_ago = datetime.utcnow() - timedelta(days=7)
+    weekly = df[df["timestamp"] >= one_week_ago]
 
-    if not weekly:
-        st.info("No scores yet this week.")
+    if weekly.empty:
+        st.info("No scores this week.")
     else:
-        for i, r in enumerate(weekly[:10], 1):
+        for i, r in enumerate(weekly.head(10).to_dict("records"), 1):
             st.write(
-                f"{i}. {r.get('avatar','🎮')} **{r.get('name','Guest')}** "
-                f"(Game {r.get('game_id','')}) — {r.get('score',0)} pts"
+                f"{i}. {r.get('avatar','🎮')} **{r['name']}** "
+                f"(Game {r['game_id']}) — {r['score']} pts"
             )
 
-            
 def get_weekly_leaderboard(limit=10):
     rows = unified_get("/leaderboard") or []
     one_week_ago = datetime.utcnow() - timedelta(days=7)