EA Required

I want an EA based on "Haco_Lb" indicator available on Tradingview platform.

E.g. Timeframe 4h. As soon as the indicator prints a green candle on close of 4h candle, the EA should execute a buy trade ("Buy trade" image attached).

The EA should continue to hold the trade until the indicator prints a red candle on 4h TF ("Buy position close" image attached).

Now that the indicator has printed a red candle, the EA should close previous long position and enter a short position at the same time.

 Note:  1. MUST EXIT PREVIOUS  POSITION BEFORE BUYING.

            2. MUST EXIT PREVIOUS POSITION BEFORE SELLING.

 Other features: 

1. Adjustable lot size;

2. TP and SL as an option;

3. Ability to execute trades on multiple timeframes.

Robot name: The Predator