That's the point where you need refactoring. The basic problem is that you cannot look into the future and clearly see what exactly you are going to need (if yo

That's the point where you need refactoring. The basic problem is that you cannot look into the future and clearly see what exactly you are going to need (if you are lucky enough to implement something along a specification, you should us that knowledge though!). As long as you manage to keep artificial complicatedness out of your code, you will always have the complexity of the problem mirrored in your code. A common problem of ideas about object oriented programming like SOLID or Clean Code is that they have a focus on classes. If you keep your classes very simple, you will instead end up with a complex architecture, where you might have zero responsibility layers or functions that just pass on the call further to a layer down.