#! /bin/bash

set -e
set -o pipefail

cleanup() {
   kill -9 $(jobs -p) || true
}
trap cleanup EXIT

python3 ./state_to_buttons.py &

(
   while echo $((RANDOM%2)); do
      if [ 0 == $((RANDOM%4)) ]; then
         sleep 3
      fi
      date >&2
   done
) | python3 ./stream_to_state.py