#!/usr/local/bin/bash

###############################################################################
#                                                                             #
# PerlCryptLib's configuration script                                         #
#                                                                             #
# Copyright (C) 2006-2007 Alvaro Livraghi. All Rights Reserved.               #
#                                                                             #
###############################################################################

#
# This script:
#
#   - 1) uses 'locate' to detect (if possible) cryptlib source directory;
#   - 2) submit that directory to the user;
#   - 3) read user input for effective cryptlib source directory;
#   - 4) run 'GenPerl.pl' perl script to coovert 'cryptlib.h' in 'PerlCryptLib.ph'
#   - 5) save cryptlib source directory path in hidden file '.cl_h' that will be used by Makefile.PL
#

#
# Error handler
#
function _error {
	echo "ERROR! $1"
	exit 1
}

##### Remove './cl_h' to  init
CL_H="./.cl_h"
rm -f $CL_H 2>/dev/null

#
# 1)
#
cl_h=$( locate cryptlib.h 2>/dev/null | head -n 1 )
if [ "$?" == 0 ]; then
	cl_header=$( basename $cl_h )
	cl_path=$( echo $cl_h | sed -e "s/$cl_header$//" )
fi
cl_path_in="$cl_path"

#
# 2) & 3)
#
cl_path_in=/usr/local/include
if [ "$cl_path_in" != "" ]; then
	cl_path="$cl_path_in"
	cl_path=$( echo $cl_path | sed -e "s/\/*$//" )
	if [[ ! -d $cl_path ]]; then _error "'$cl_path' not found! ($!)"; fi
	cl_h="$cl_path/cryptlib.h"
fi
if [[ ! -r $cl_h ]]; then _error "'$cl_h' not readable! ($!)"; fi

#
# 4)
#
echo -n "Writing 'PerlCryptLib.ph'... "
perl ./GenPerl.pl $cl_h ./PerlCryptLib.ph 1>/dev/null
if [ "$?" != "0" ]; then _error "failed!"; fi

#
# 5)
#
echo -n "$cl_h" >$CL_H
echo "done."

exit 0;