Buy or Sell signal based on a three candle pattern

Hi,

I need an indicator that gives a signal when the following  requirements are met (see the attached chart):

BUY

Bar 1 closes

Bar 2 closes higher than Bar 1's high

Bar 3's low touches Bar 2's open and Bar 3 closes higher than Bar 2's close.

All three bars must be bull bars

If these requirements are met, buy signal is generated when Bar 3 closes.

Sell

Bar 1 closes 

Bar 2 closes lower than Bar 1's low

Bar 3's high touches Bar 2's open and Bar 3 closes lower than Bar 2's close

All three bars must be bear bars

If these requirements are met, sell signal is generated when bar 3 closes.

Indicator settings

1 Candles Minimum Size in points (If 0 false)

 The size is calculated from candle open to candle close

 This is used to filter signals generated by small body candles 

 If I set it to 0 the filter is off, if I set for example 15 points, every candle's body must be at least 15 points big

2 Consider Bar 2's High/Low (True/False)

 In the case of a Buy signal, Bar 3 must close higher than Bar 2's close.

 If I set this to true, Bar 3 must close higher than Bar 2's high.

 In the case of a Sell signal, Bar 3 must close lower than Bar 2's low.

3 Show Arrow (True/False)

 Show an arrow on the cart when the signal is generated 

4 Alert (True/False)

 Pop up alert when the signal is generated