Yeah, been there. The codebase I worked on also had a single method with 10k lines.

The database IDs were strings including the hostname of the machine that wrote to the DB. Since it was a centralized server, all IDs had the same hostname. The ID also included date and time accurate to the millisecond, and the table name itself.

Me: Mom, can we have UUIDs? Mom: We have UUIDs at home UUIDs at home: that shit