Code refactor

[Aniketh01]

Currently, the code is written mostly in functions. Would be good to introduce classes into the code architecture.

Update the commit history as well.

[iammarco11]

Can this issue be edited only to commit history?
As we have introduce classes everywhere?

[Aniketh01]

@iammarco11 It was a general idea, perhaps we can close it soon enough when most of the code has been re-written in the past few days