import requests


# 获取市值前10的币种
def get_top_coins_by_market_cap(top):
    
    coingecko_url = "https://api.coingecko.com/api/v3/coins/markets"
    params = {
        'vs_currency': 'usd',
        'order': 'market_cap_desc',
        'per_page': top,
        'page': 1
    }
    response = requests.get(coingecko_url, params=params)
    coins = response.json()
    return coins

# 获取Binance上的USDT交易对信息
def get_binance_usdt_pairs():
    url = "https://api.binance.com/api/v3/exchangeInfo"
    response = requests.get(url)
    data = response.json()

    usdt_pairs = [symbol['symbol'] for symbol in data['symbols'] if (symbol['quoteAsset'] == 'USDT' and symbol['status'] == 'TRADING')]
    return usdt_pairs

def get_top_binance_usdt_pairs(top):
    # 获取市值前10的币种
    top_coins = get_top_coins_by_market_cap(top)
    
    # 获取Binance上的USDT交易对
    usdt_pairs = get_binance_usdt_pairs()


    # 筛选出前10币种中与USDT有交易对的币种
    top_pairs = []
    for coin in top_coins:
        coin_symbol = coin['symbol'].upper()
        pair = f"{coin_symbol}USDT"
        if pair in usdt_pairs:
            top_pairs.append(pair)
    
    return top_pairs