Develop an Expert with a simple logic

Hello,

I need a programmer who can help me develop an expert advisor with a simple logic. This expert advisor will be able to take trades and close them in profit at the best opportunity.

My logic is based on the fact that I don't know where the market direction will be, but I have a price range of where it is likely to be and I have a target distance between the highest price and the lowest price from the time of installing the Robot. So I want the expert to start trades and identify the market direction using the trend line of highest and lowest prices and BUY when prices are going up or SELL when price is falling and be able to close trades and restart new trades automatically.

So if the distance between Future HIGHEST and LOWEST is 4 for example and the robot is installed when price is 190, then the robot should be able to BUY when price is rising or SELL when price is falling until the distance between the highest and the lowest historical period from start of expert is 4. So lowest and highest price can be as follows

High    191     Low 187

High    192     Low 188

High    193    Low 189

High    190     Low 186

High    194     Low 190

So depending on move,  robot is able to identify when price is going up or coming down and take the trades at lot sizes with minimal risk to the accounts