This is an elm implementation of the Firebase unique ID generation algorithm
Key.elm is now a working effect manager. It is largely a clone of
Random.
Main.elm is a toy interface to help quickly debug.
Currently the code in Key.elm does work provided you pass the Seed generated
by Random.step into the model of your host application. This Key library will
ultimately be used as a part of a much larger firebase library that has, thus
far, avoided inserting update messages, states, and subscriptions into the host
application.
The reason this is incompatible with the existing Random.generate
implementation is there is a time sensitive part of the key. The elm Time
library uses Tasks while the Random library uses its own types. You cannot
make a randomly generated string that has a time dependent component due to the
inability to compose the types generated by these libraries.
The seed used by this SHOULD be a global state and calling Key.generate SHOULD
cause global side effects by updating that key. It is not ideal for there to be
a potential data race in the host application that may cause duplicate "random"
parts of these firebase keys.