#!/bin/sh
# --------------------------------------------------------------------
# --------------------------------------------------------------------

AWK=awk
TR=tr
TOUCH=touch

# --------------------------------------------------------------------

if [ $# -ge 1 ]
then
	case $1 in
		-drivers)
			shift
			if [ $# -ge 1 ]
			then
				echo "Usage: $0 [-help] [-drivers] [-modemlib [smsmodem|libmodem]]" 1>&2
				exit 1
			fi

			echo
			echo "Generating file 'Makefile.drivers' from file 'drivers'..."

			cp config/Makefile.drivers Makefile.drivers
			if [ $? -ne 0 ]
			then
				echo "ERROR: 'cp config/Makefile.drivers Makefile.drivers' failed" 1>&2
				exit 1
			fi

			drivers=`$AWK '!/^#/ && !/^$/ { print $1 }' drivers`
			drivers=`echo $drivers`

			for driver in $drivers
			do
				drv_def="-D$driver $drv_def"

				driver=`echo $driver | $TR '[A-Z]' '[a-z]'`.o
				drv_obj="$driver $drv_obj"
			done

			echo "# --------------------------------------------------------------------" >>Makefile.drivers
			echo                                                                          >>Makefile.drivers
			echo "DRIVERS=$drivers"                                                       >>Makefile.drivers
			echo "DRV_OBJ=$drv_obj"                                                       >>Makefile.drivers
			echo "DRV_DEF=$drv_def"                                                       >>Makefile.drivers
			echo                                                                          >>Makefile.drivers
			echo "# --------------------------------------------------------------------" >>Makefile.drivers

			echo "Done."
			exit 0

			;;
		-modemlib)

			libmodem=1
			smsmodem=2

			shift
			if [ $# -ge 1 ]
			then
				if [ $# -gt 1 ]
				then
					echo "Usage: $0 [-help] [-drivers] [-modemlib [smsmodem|libmodem]]" 1>&2
					exit 1
				fi

				modemlib=$1
			else
				echo
				echo "SMS Client can optionally be compiled against:"
				echo 
				echo 
				echo "    1. Libmodem - A third party modem library"
				echo "    2. SMSModem - The internal modem library" 
				echo 

				modemlib=
				while [ "X-$modemlib" = "X-" ]
				do
					echo "Please make a selection [1,2]:"

					read selection
					case "$selection" in
						1)
							modemlib=libmodem
							;;
						2)
							modemlib=smsmodem
							;;
						*)
							echo "ERROR: Invalid selection" 1>&2
							;;
					esac
				done
			fi

			case $modemlib in
				libmodem)
					modemlib=$libmodem
					mlibs=-lmodem
					;;
				smsmodem)
					modemlib=$smsmodem
					mlibs=
					;;
				*)
				echo "Usage: $0 [-help] [-drivers] [-modemlib [smsmodem|libmodem]]" 1>&2
				exit 1
			esac

			echo
			echo "Generating file 'Makefile.modemlib'..."

			cp config/Makefile.modemlib Makefile.modemlib
			if [ $? -ne 0 ]
			then
				echo "ERROR: 'cp config/Makefile.modemlib Makefile.modemlib' failed" 1>&2
				exit 1
			fi

			echo "# --------------------------------------------------------------------" >>Makefile.modemlib
			echo                                                                          >>Makefile.modemlib
			echo "SMSMODEM = $smsmodem"                                                   >>Makefile.modemlib
			echo "LIBMODEM = $libmodem"                                                   >>Makefile.modemlib
			echo                                                                          >>Makefile.modemlib
			echo "# --------------------------------------------------------------------" >>Makefile.modemlib
			echo                                                                          >>Makefile.modemlib
			echo "MODEMLIB = $modemlib"                                                   >>Makefile.modemlib
			echo "MLIBS    = $mlibs"                                                      >>Makefile.modemlib
			echo                                                                          >>Makefile.modemlib
			echo "# --------------------------------------------------------------------" >>Makefile.modemlib

			echo "Done."
			exit 0
			;;
		-h|-help)
			echo "Usage: $0 [-help] [-drivers] [-modemlib [smsmodem|libmodem]]"
			exit 0
			;;
		*)
			echo "Usage: $0 [-help] [-drivers] [-modemlib [smsmodem|libmodem]]" 1>&2
			exit 1
	esac		
fi

if [ -f ".configured" ]
then
	echo ""
	echo "You have already run 'configure'"
	echo "running it again will overwrite 'Makefile', 'Makefile.drivers'"
	echo "and 'Makefile.config'"
	echo "Are you sure you wish to continue [Y/N]?"

	read answer
	case "$answer" in
		Y*|y*)
			;;
		*)
			exit 0
			;;
	esac
fi

# --------------------------------------------------------------------

sh $0 -drivers
sh $0 -modemlib smsmodem

# --------------------------------------------------------------------

UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
UNAME_SYSTEM=`(uname -s) 2>/dev/null`  || UNAME_SYSTEM=unknown
        
# --------------------------------------------------------------------

case $UNAME_SYSTEM in
	SunOS*)
		case $UNAME_RELEASE in
			5.4)
				EXTENSION=solaris-2.4
				;;
			5.5)
				EXTENSION=solaris-2.5
				;;
			5.5.1)
				EXTENSION=solaris-2.5.1
				;;
			5.6)
				EXTENSION=solaris-2.6
				;;
			5.7)
				EXTENSION=solaris-2.7
				;;
			5.8)
				EXTENSION=solaris-2.8
				;;
			*)
				EXTENSION=
				;;
		esac
		;;
	Linux*)
		EXTENSION=linux
		;;
        FreeBSD*)
                EXTENSION=freebsd
                ;;
	UnixWare*)
		EXTENSION=unixware
		;;
	SCO*)
		EXTENSION=sco
		;;
	HP-UX*)
		EXTENSION=hp-ux
		;;
	OSF1*)
		EXTENSION=osf1
		;;		
	unknown)
		( hostinfo | grep NeXT ) 2>/dev/null >/dev/null
		if [ $? -eq 0 ]
		then
			EXTENSION=next
		else
			EXTENSION=
		fi
		;;		
	*)	
		EXTENSION=
		;;
esac

if [ "X-${EXTENSION}" = "X-" ]
then
	echo ""
	echo "I Dont know how to build for '${UNAME_SYSTEM}'"
	echo "Copy a 'Makefile.config.OSTYPE' from the config directory"
	echo "which most closely resembles your platform into this"
	echo "directory and rename it 'Makefile.config'"
	echo ""
	echo "You may wish to edit Makefile.config for site specific dependencies"
	echo "When you have finished, to build and install sms_client run:"
	echo ""
	echo "        make ; make install"
	echo ""

	exit 1
fi

# --------------------------------------------------------------------

cp config/Makefile.config.${EXTENSION} Makefile.config
if [ $? -ne 0 ]
then
	echo "ERROR: 'cp config/Makefile.config.${EXTENSION} Makefile.config' failed" 1>&2
	exit 1
fi

cp config/Makefile Makefile
if [ $? -ne 0 ]
then
	echo "ERROR: 'cp config/Makefile Makefile' failed" 1>&2
	exit 1
fi

$TOUCH .configured
if [ $? -ne 0 ]
then
	echo "ERROR: '$TOUCH .configured' failed" 1>&2
	exit 1
fi

echo ""
echo "Copying 'config/Makefile.config.${EXTENSION}' to 'Makefile.config'"
echo "Configuration complete"
echo "You may wish to edit Makefile.config for site specific dependencies"
echo "When you have finished, to build and install sms_client run:"
echo ""
echo "        make ; make install"
echo ""

exit 0

# --------------------------------------------------------------------