#!/bin/sh

# This is a wrapper script for lf that allows it to create image previews with
# ueberzug. This works in concert with the lf configuration file and the
# lf-cleaner script.

set -e

cleanup() {
  exec 3>&-
  rm "$FIFO_UEBERZUG"
}

if [ -n "$WAYLAND_DISPLAY" ] || [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
  lf "$@"
  exit
else
  [ ! -d "$HOME/.cache/lf" ] && mkdir -p "$HOME/.cache/lf"
  export FIFO_UEBERZUG="$HOME/.cache/lf/ueberzug-$$"
  mkfifo "$FIFO_UEBERZUG"
  ueberzug layer -s <"$FIFO_UEBERZUG" -p json &
  exec 3>"$FIFO_UEBERZUG"
  trap cleanup HUP INT QUIT TERM PWR EXIT
  lf "$@" 3>&-
fi