AC_INIT(http_getter.pl.in)

PACKAGE=helm_http_getter
MAJOR_VERSION=0
MINOR_VERSION=0
MICRO_VERSION=2
VERSION=$MAJOR_VERSION.$MINOR_VERSION.$MICRO_VERSION

if test "x$prefix" != xNONE; then
  RESOLVED_PREFIX=$prefix
else
  RESOLVED_PREFIX=$ac_default_prefix
fi

if test "x$exec_prefix" != xNONE; then
  RESOLVED_EXEC_PREFIX=$exec_prefix
else
  RESOLVED_EXEC_PREFIX=$RESOLVED_PREFIX
fi

AC_CHECK_PROG(HAVE_HELM_CONFIG, helm-config, yes, no)
if test $HAVE_HELM_CONFIG = no; then
  AC_MSG_ERROR(helm-config not found)
fi

DEFAULT_HELM_LIB_DIR=`helm-config --lib-dir`

AC_MSG_CHECKING("for configuration.pl")
if test ! -f $DEFAULT_HELM_LIB_DIR/configuration.pl; then
  AC_MSG_ERROR(Could not find configuration.pl in $DEFAULT_HELM_LIB_DIR, please check your installation)
fi
AC_MSG_RESULT(in $DEFAULT_HELM_LIB_DIR)

AC_PATH_PROG(PERL_BINARY,perl,no)
if test $PERL_BINARY = no ; then
   AC_MSG_ERROR(Could not find perl)
fi

dnl Perl modules checks
PERL_MODS="HTTP::Daemon HTTP::Status HTTP::Request LWP::UserAgent DB_File Compress::Zlib"
PERL_INC=`perl -e 'print(join(" ",@INC))'`
for perl_mod in $PERL_MODS; do
	AC_MSG_CHECKING("for perl module: $perl_mod")
	perl_mod_file=`echo $perl_mod | sed -e 's/::/\//' -e 's/$/\.pm/'`
	module_found="false"
	for perl_lib_dir in $PERL_INC; do
		if test -f "$perl_lib_dir/$perl_mod_file"; then
			module_found="true"
			AC_MSG_RESULT("found in $perl_lib_dir")
			break
		fi
	done
	if test "$module_found" != "true"; then
		AC_MSG_ERROR("not found")
	fi
done

AC_SUBST(PACKAGE)
AC_SUBST(VERSION)
AC_SUBST(RESOLVED_PREFIX)
AC_SUBST(RESOLVED_EXEC_PREFIX)
AC_SUBST(DEFAULT_HELM_LIB_DIR)
AC_SUBST(PERL_BINARY)

AC_OUTPUT([
  Makefile
  http_getter.pl
  helm_http_getter.spec
], chmod +x http_getter.pl)