dataset.py

import json

LEADERBOARD_FILE = "leaderboard.json"

def save_leaderboard(leaderboard):
    with open(LEADERBOARD_FILE, "w") as f:
        json.dump(leaderboard, f)

def load_leaderboard():
    try:
        with open(LEADERBOARD_FILE, "r") as f:
            return json.load(f)
    except FileNotFoundError:
        return []

def update_leaderboard_votes(index, vote):
    leaderboard = load_leaderboard()
    if 0 <= index < len(leaderboard):
        leaderboard[index]["votes"] += vote
        leaderboard.sort(key=lambda x: x["votes"], reverse=True)
        save_leaderboard(leaderboard[:10])  # Keep only top 10
    return leaderboard[:10]