#!/usr/bin/env sh

# Description: Show file stats similar to nnn show_stats() output in a pager
# Dependencies: file, stat, pager (PAGER/NNN_PAGER/less)
# Shell: POSIX compliant

entry=${1:-}
dir=${2:-}

if [ -z "$entry" ]; then
    printf '%s\n' "No hovered entry provided." >&2
    exit 1
fi

case "$entry" in
    /*) target=$entry ;;
    *)
        if [ -n "$dir" ]; then
            target=$dir/$entry
        else
            target=$PWD/$entry
        fi
        ;;
esac

os=$(uname -s 2>/dev/null || printf '%s' unknown)

# Match nnn FILE_MIME_OPTS handling.
file_mime_opts=''
case "$os" in
    Darwin)
        file_mime_opts='-bIL'
        ;;
    SunOS)
        file_mime_opts=''
        ;;
    *)
        file_mime_opts='-biL'
        ;;
esac

# Match nnn stat behavior.
stat_x=0
case "$os" in
    FreeBSD|OpenBSD|NetBSD|Darwin|DragonFly)
        stat_x=1
        ;;
esac

tmpfile=$(mktemp "${TMPDIR:-/tmp}/nnn-stats.XXXXXX") || exit 1
trap 'rm -f "$tmpfile"' EXIT HUP INT TERM

{
    if [ "$stat_x" -eq 1 ]; then
        stat -x "$target"
    else
        stat "$target"
    fi

    file -b "$target"

    if [ -n "$file_mime_opts" ]; then
        file "$file_mime_opts" "$target"
    fi
} >"$tmpfile" 2>&1

pager_cmd=${NNN_PAGER:-${PAGER:-less}}

# Allow pager command with options (e.g. "less -R").
# shellcheck disable=SC2086
$pager_cmd "$tmpfile" || cat "$tmpfile"