/**
. thinking about state-machine from "hand-drawn" perspective
. will it look the same as an Automat one?
**/

digraph {
        listening -> wait_relay [label="connection_made"]

        wait_relay -> wait_partner [label="please_relay\nFindPartner"]
        wait_relay -> wait_partner [label="please_relay_for_side\nFindPartner"]
        wait_relay -> done [label="invalid_token\nSend('bad handshake')\nDisconnect"]
        wait_relay -> done [label="connection_lost"]

        wait_partner -> relaying [label="got_partner\nConnectPartner(partner)\nSend('ok')"]
        wait_partner -> done [label="got_bytes\nDisconnect"]
        wait_partner -> done [label="connection_lost"]

        relaying -> relaying [label="got_bytes\nSend(bytes)"]
        relaying -> done [label="partner_connection_lost\nDisconnectMe"]
        relaying -> done [label="connection_lost\nDisconnectPartner"]
}