/* this state machine is just about the code */

digraph {
        need_code [label="need\ncode"]
        asking_for_code [label="asking\nuser\nfor\ncode"]
        creating_code [label="allocating\nnameplate"]
        creating_code2 [label="generating\nsecret"]
        know_code

        need_code -> know_code [label="set_code()"]

        need_code -> asking_for_code [label="input_code()"]
        asking_for_code -> know_code [label="user typed code"]

        need_code -> creating_code [label="get_code()"]
        creating_code -> creating_code2 [label="rx allocation"]
        creating_code2 -> know_code [label="generated secret"]
}