Locomotive engineer trainee

For anyone who recently went through the whole program, can I get a detail about how it works? I read a couple posts with mixed info…

After they hit you up for signals and def, If you pass that than you go into phase 1? And phase 1 is two days a week? Weds PM & sat AM? And phase 1 consist of signals and definitions or book or rules? Or both?

How long is phase 1? And phase 2? M-F at different locations? While getting paid?