#! /bin/bash

proc_is_running() {
   ps aux | grep -v grep | awk '{print $2}' | grep ^"$1"$ &> /dev/null
}

block_proc() {
   local pid="$1"
   local limit="${TIMEOUT:-100}"
   deadline=$(($(date +%s) + limit))
   while [ $(date +%s) -lt $deadline ] && proc_is_running "$pid"; do
      sleep 1
   done
   kill -9 "$pid" &> /dev/null
}

main() {
   cleanup() {
      kill -9 $(jobs -p)
      killall afplay mpv
   }
   trap cleanup EXIT

   for f in ./script.d/*.wav; do
      if [ "$#" != "0" ]; then
         eval "$1"
      else
         read -p "enter to play <$f>"
      fi
      mpv --no-video "$f" &
      export pid=${!}
      block_proc $pid
   done
}

main "$@"