mpvctl

#! /bin/sh

if [ "$1" = "--help" ] || [ "$1" = "-h" ] || [ "$1" = "help" ] || [ -z "$1" ]; then
  cat << EOF
$ mpvctl [--socket SOCKET] CMD
Control mpv through the IPC socket at $SOCKET

Commands:
  play|toggle|pause: toggle playback
  get:               get info by property name
  keypress:          send a keypress
  seek_to_end:       seek to the end of the buffer

Example:
  $ mpvctl toggle
  $ mpvctl --socket /tmp/mpv_named_music play
EOF
  exit
fi

hash mpv socat manage-mpv-sockets || exit 127

SOCKET=
if echo "$@" | grep '\--socket' >/dev/null; then
  SOCKET="$2"
  shift
  shift
fi

if [ -z "$SOCKET" ]; then
  if SOCKET=$(manage-mpv-sockets get_playing); then
    continue
  else
    SOCKET=$(manage-mpv-sockets list | tail -n1)
    if [ -z "$SOCKET" ]; then
      echo "mpv not playing on any socket"
      exit 10
    fi
  fi
fi

send_cmd() {
  # see man at: list of input commands
  res=$(echo "{\"command\": $1}" | socat - $SOCKET)
  if echo $res | grep -F '"error":"success"' >/dev/null; then
    echo $res | jq .data
  else
    if [ -n "$res" ]; then
      echo $res 1>&2
    fi
    exit 1
  fi
}
send_keypress() {
  echo "sending keypress: $1"
  send_cmd "[\"keypress\", \"$1\"]" >/dev/null
}
send_get() {
  # see: man "Properties" for descriptions
  send_cmd "[\"get_property\", \"$1\"]"
  # pass 'property-list' for all properties
  #  https://github.com/mpv-player/mpv/issues/7562
}

seek_to_end() {
  send_cmd "[\"seek\", \"99\", \"absolute-percent\"]"
}

notify() {
  notify-send -i $1 -u normal -h string:x-canonical-private-synchronous:media-control -t 5000 "$2" "$(send_get media-title | cut -d\" -f2)"
}
next() {
  if [ "$(send_get chapters)" -gt 0 ]; then # has chapters
    send_cmd "[\"add\", \"chapter\", \"1\"]"
  elif [ "$SOCKET" = "/tmp/mpv_named_music" ]; then
    seek_to_end
  elif [ "$(send_get playlist-count)" -gt 0 ]; then # has playlist
    send_cmd "[\"playlist-next\", \"force\" ]"
  else # just regular file
    send_cmd "[\"seek\", \"60\"]"
  fi
}
prev() {
  if [ "$(send_get chapters)" -gt 0 ]; then # has chapters
    send_cmd "[\"add\", \"chapter\", \"-1\"]"
  elif [ "$(send_get playlist-count)" -gt 0 ]; then # has playlist
    send_cmd "[\"playlist-prev\", \"weak\" ]"
  else # just regular file
    send_cmd "[\"seek\", \"-60\"]"
  fi
}

case "$1" in
  toggle)
    send_keypress space >/dev/null # or send_cmd cycle pause

    if [ `send_get pause 2>/dev/null` = "false" ]; then
      notify player_play "Play"
    else
      notify player_pause "Pause"
    fi;;
  play)
    send_cmd "[\"set_property\", \"pause\", false]"
    notify player_play "Play"
    ;;
  pause)
    send_cmd "[\"set_property\", \"pause\", true]"
    notify player_pause "Pause"
    ;;
  next)
    next
    notify player_end "Next";;
  prev)
    prev
    notify player_start "Previous";;
  get) send_get "$2";;
  key|keypress) send_keypress "$2";;
  seek_to_end) seek_to_end;;
esac