#!/bin/sh

# colour definitions
normal="\033[0m"
red="\033[31m"
orange="\033[33m"
green="\033[32m"

if [ "foo`echo -e bar`" = "foobar" ];then
  # GNU echo
  ECHO_e="echo -e"
else
  # POSIX echo
  ECHO_e="echo"
fi

die() {
	$ECHO_e "${red}$@${normal}" >&2
	exit 1
}

if [ -f "${NEO_CONFIG}" ]; then
	. "${NEO_CONFIG}" || die "Failed to source ${NEO_CONFIG}"
elif [ -f "${HOME}"/.neorc ]; then
	. "${HOME}"/.neorc || die "Failed to source ${HOME}/.neorc"
elif [ -f /etc/neo.conf ]; then
	. /etc/neo.conf || die "Failed to source /etc/neo.conf"
else
	echo "No configuration file found. Using default values, this might fail!"
fi

NEO_REFERENCE=${NEO_REFERENCE:-$HOME/neo/neo20.txt}

if [ 0 = $# ]; then
	grep -m 1 -B 15 "┴──────┘" "${NEO_REFERENCE}"
else 
	for NUM in $@; do
		if [ $(($NUM)) -ge 1  -a $(($NUM)) -le 6 ]; then
			grep -B 11 -m "$NUM" "└───┴──┴──┴───────────┴──┴──┴──┴───┘" "${NEO_REFERENCE}" | tail -n 12
		else
			echo "Benutzung: `basename $0` [1-6]"
			echo "           Wenn der Aufruf ohne Zahl erfolgt, werden alle Ebenen ausgegeben."
			echo "           Ansonsten werden nur die Ebenen ausgegeben, die angegeben sind."
			exit 1
		fi
	done
fi