I mean feedback on a way to abstract away helper services. As far as file length, I realize that this is subjective, and the 100 lines number is pulled out of thing air, but extremely long files are generally difficult to read and context gets lost.
Putting shared context in another file makes it harder to read though. Files should be big enough to represent some reasonable context, for more complicated things that necessary creates a big shared context you want bigger files and simpler things smaller files.
A thing that can be perfectly encapsulated in a 1000 line file with a small clean interface is much much better than splitting that up into 20 files 100 lines each calling each other.
