Largest Candle of x periods + highest high / low of x candles

Hi there,

I would like to havea script that sends me notifications to my phone if:

1) engulfing candle

2) largest candle for x periods (high-low)

3) highest high / low for x periods 

I would like to be able to specify the pairs the script screens. either that... or simply all of them. 

Regards

Gerd