#!/bin/sh
set -e

if [ "$1" != configure ]; then
	exit 0
fi

# Source debconf library.
if [ -e /usr/share/debconf/confmodule ]; then
	. /usr/share/debconf/confmodule
fi

if [ -d /usr/doc -a ! -e /usr/doc/t-prot -a -d /usr/share/doc/t-prot ]; then
	ln -sf ../share/doc/t-prot /usr/doc/t-prot
fi

# check for the /etc/Muttrc return value
if [ -e /usr/share/debconf/confmodule ]; then
	db_get t-prot/muttrc_option
	muttrc="$RET"
fi

if [ "$muttrc" = "true" ] ; then
	# check if it's already added
	if ! grep /etc/Muttrc.t-prot /etc/Muttrc > /dev/null; then
		echo 'source "/etc/Muttrc.t-prot"   # for the t-prot script' \
			>> /etc/Muttrc
	fi
elif [ "$muttrc" = "false" ] ; then
	# delete the line.
	if grep /etc/Muttrc.t-prot /etc/Muttrc > /dev/null; then
		TMPFILE=`mktemp /tmp/Muttrc.XXXXXX`
		sed -e '\,/etc/Muttrc.t-prot,d' < /etc/Muttrc > $TMPFILE
		chmod --reference=/etc/Muttrc $TMPFILE
		mv -f $TMPFILE /etc/Muttrc
	fi
fi