Mathematics calculation written in JavaScript needs to be converted to MQL5

The three attached files are the follows:

• Two picture how the HTML file look like. First picture is the default state. The second picture is a random scenario.
• The third file named mm_html.mq5 is the full source code. If you save it to HTML format then you can open and you will see the same as the pictures. The system doesn't allow to upload HTM that's why I put it in MQ5 format.

Bottom of the HTML file you can see the JavaScript code which is important for us.

I'd like to have a function where the "Next position if win current" and the "Next position if lose current"  is calculated if I pass the parameter "win" or "lose". And if I pass "reset" then reset the system.

You can see three input parameters in the HTML file. These can also be passed to the function.

These calculations are on the JavaScript code provided.

I'd like it in language MQL5.

Open the file in HTML and you will understand everything.

If anything needs to be clarified, feel free to ask me.

Kind Regards,
Ben