TradingView Indicator Conversion

The basic indicator and the only indicator to be used is PRICE PERCENT RANGE and the indicator files are attached. A picture to visualize what is required is also attached. Job: Indicator : 1. Add Buy alert and Buy arrow function,if the price%R value touches or goes below value 9.5 or the user specified,after candle close. 2. Add Sell alert and Sell arrow function,if the price%R value touches or goes below value 90.5