History of trades

Can anyone help me re-write a module in MT5. I am creating an EA in MT5, so I just need this simple function to include in my EA. You are not creating an EA for me, just a simple function for me to put inside my EA.

PnL of an EA in a portfolio.                       |

This module calculates the balance that an EA has made by looking at the closed trades.

It goes through the history, starting from the date I provide at the Input, to the current data

It identifies the trades of the EA by the Magic number specified, order symbol, and order type specified

Then it sums all the profit/loss generated by that EA alone, from the date of Deposit given.