Reverse as soon as SL is executed

Hi

I would like an EA or script to place automatically at midnight broker time ,place a buy stop at the yesterday high and sell stop at yesterday low .the 2 orders with 20 pips TP and 20SL (only 1 times per day)

If tp is executed the EA need to close the pending opposite order 

If SL is executed the EA need to open a reverse order with the same parameter (SL 20 TP 20)

exemple : if a long order as been triggered and fail ( SL is executed) so the EA will open right away a Short order with SL20 TP 20.

if tp or sl is executed the EA need to close the opposite order .

Thanks in advance 

Phil