from datetime import datetime

def log_opportunity(opp: dict):
    timestamp = datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S')
    message = (
        f"[{timestamp}] {opp['symbol']} | BUY on {opp['buy_exchange']} @ {opp['buy_price']} "
        f"-> SELL on {opp['sell_exchange']} @ {opp['sell_price']} | "
        f"Net Spread: {opp['spread_percent']:.2f}% | Size: {opp['size']:.4f} "
        f"| Funding BUY: {opp['buy_funding']:.5f}, SELL: {opp['sell_funding']:.5f}"
    )
    print(message)
    #with open("opportunities.txt", "a") as f:
        #f.write(message + "\n")