from pandas import DataFrame, Series

from daily_data import get_daily_data

def signals(data: DataFrame) -> Series:
    """
    Generate long signals based on the Connors VIX Reversal 3 strategy.
    Returns a Series with 'L' for long signals and 'N' for no signal.
    """
    start_date = data['Date'].min()
    end_date = data['Date'].max()
    vix_data = get_daily_data(symbol = 'VIX.XO', start_date = start_date, end_date = end_date)

    vix_ma_50 = vix_data['Close'].rolling(window = 50).mean()

    vix_low_above_50_ma = vix_data['Low'] > vix_ma_50
    vix_close_10_percent_above_ma = vix_data['Close'] >= (1.1 * vix_ma_50)

    signals = Series('N', index = data.index)
    signals[vix_low_above_50_ma & vix_close_10_percent_above_ma] = 'L'
    return signals