# Import the CCXT library
import ccxt

# Define the exchange and the market
exchange = ccxt.binance() # You can use any other supported exchange
market = "BTC/USDT" # You can use any other supported market

# Define the API key and secret
api_key = "YOUR_API_KEY" # Replace with your own API key
api_secret = "YOUR_API_SECRET" # Replace with your own API secret

# Set the authentication parameters
exchange.apiKey = api_key
exchange.secret = api_secret

# Define the trading parameters
amount = 0.01 # The amount of BTC to buy or sell
fast_period = 10 # The fast SMA period
slow_period = 20 # The slow SMA period
interval = "1h" # The candlestick interval

# Define the variables for storing the SMA values
fast_sma = 0
slow_sma = 0
prev_fast_sma = 0
prev_slow_sma = 0

# Define the variable for storing the order id
order_id = None

# Define a function to calculate the SMA
def calculate_sma(data, period):
    # Sum up the closing prices of the last period candles
    sum = 0
    for i in range(period):
        sum += data[-i-1][4]
    # Divide by the period to get the average
    return sum / period

# Define a function to check the SMA crossover
def check_sma_crossover():
    global fast_sma, slow_sma, prev_fast_sma, prev_slow_sma
    # Get the latest candlestick data
    data = exchange.fetch_ohlcv(market, interval)
    # Calculate the current SMA values
    fast_sma = calculate_sma(data, fast_period)
    slow_sma = calculate_sma(data, slow_period)
    # Calculate the previous SMA values
    prev_fast_sma = calculate_sma(data[:-1], fast_period)
    prev_slow_sma = calculate_sma(data[:-1], slow_period)
    # Check if the fast SMA crossed above the slow SMA
    if fast_sma > slow_sma and prev_fast_sma <= prev_slow_sma:
        return "buy"
    # Check if the fast SMA crossed below the slow SMA
    elif fast_sma < slow_sma and prev_fast_sma >= prev_slow_sma:
        return "sell"
    # Otherwise, return None
    else:
        return None

# Define a function to place an order
def place_order(side):
    global order_id
    # Check if there is an existing order
    if order_id is not None:
        # Cancel the existing order
        exchange.cancel_order(order_id, market)
        # Reset the order id
        order_id = None
    # Create a new order
    order = exchange.create_order(market, "market", side, amount)
    # Print the order details
    print(order)
    # Store the order id
    order_id = order["id"]

# Define the main loop
def main():
    # Run the loop indefinitely
    while True:
        # Check the SMA crossover
        signal = check_sma_crossover()
        # If there is a buy signal
        if signal == "buy":
            # Place a buy order
            place_order("buy")
        # If there is a sell signal
        elif signal == "sell":
            # Place a sell order
            place_order("sell")
        # Wait for one minute
        time.sleep(60)

# Run the main function
if __name__ == "__main__":
    main()