#!/bin/sh

XDG_CACHE_HOME="${XDG_CACHE_HOME:-$HOME/.cache}"
UEBERZUG_TMP_DIR="${UEBERZUG_TMP_DIR:-/tmp}"

UB_PID=
UB_SOCKET=

cleanup() {
    exec 3>&-
    ueberzugpp cmd -s "$UB_SOCKET" -a exit
}

if [ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ]; then
    lf "$@"
else
    [ -d "$XDG_CACHE_HOME/lf" ] || mkdir -p "$XDG_CACHE_HOME/lf"

    UB_PID_FILE="$UEBERZUG_TMP_DIR/.$(uuidgen)"
    ueberzugpp layer --silent --no-stdin --use-escape-codes --pid-file "$UB_PID_FILE"
    read -r UB_PID <"$UB_PID_FILE"
    rm "$UB_PID_FILE"

    UB_SOCKET="$UEBERZUG_TMP_DIR/ueberzugpp-$UB_PID.socket"
    export UB_PID UB_SOCKET
    trap cleanup HUP INT QUIT TERM EXIT

    lf "$@" 3>&-
fi