#! /bin/sh
set -e

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package
#
# quoting from the policy:
#     Any necessary prompting should almost always be confined to the
#     post-installation script, and should be protected with a conditional
#     so that unnecessary prompting doesn't happen if a package's
#     installation fails and the `postinst' is called with `abort-upgrade',
#     `abort-remove' or `abort-deconfigure'.

install_init()
{
	PROD=wanrouter
	START_SCRIPT=20
	STOP_SCRIPT=10
	PROD_INIT=/usr/sbin/wanrouter

    # Examine system bootstrap files.
    if [ -d /etc/rc0.d ]; then
        RC_DIR=/etc
    elif [ -d /etc/rc.d/rc0.d ]; then
        RC_DIR=/etc/rc.d
    else
        return 0
    fi

    # Create Symbolic Link to Wanrouter binary
    if [ ! -f "/etc/init.d/wanrouter" ]; then
        ln -sf $PROD_INIT $RC_DIR/init.d/wanrouter
        echo "Created SymLink of $PROD_INIT to $RC_DIR/init.d/wanrouter"
        echo
    fi

	# Install start/stop scripts.
    update-rc.d wanrouter defaults $START_SCRIPT $STOP_SCRIPT

    return 0
}

case "$1" in
    configure)

        if [ -d "/usr/local/wanrouter" ]; then
	        cat <<EOM

*** Previous installation of Wanpipe detected.
    Please use /usr/sbin/wancfg instead of /usr/local/wanrouter/wancfg
    for Wanpipe configuration.
    The new configuration files will be saved in /etc/wanpipe
    and /etc/wanpipe/interfaces directories.

EOM
        else
        	echo 'no old wanpipe detected' > /dev/null
        fi

        cat <<EOM

*** Sangoma Wanpipe was successfully installed.
    Run wancfg command to configure wanpipe.
    Refer to /usr/share/doc/wanpipe for documentation.

    Docs: README-2.config
          README-3.operation
	  README-4.debugging

    Hardware Probe: /usr/sbin/wanrouter hwprobe
    Wanpipe Config: /usr/sbin/wancfg
    Wanpipe Start : /usr/sbin/wanrouter start

EOM

        install_init;

        # check dependancies for the new modules
        echo "Executing depmod to check dependancies and new kernel modules"
        eval "depmod -a > /dev/null 2>&1"
        echo

        eval "modprobe wanrouter"
        if [ $? -eq 0 ]; then
        	eval "modprobe -r wanrouter"
        	if [ $? -eq 0 ]; then
        	    echo "Module loaded/unloaded to test"
        	fi
        else
            echo "Failed to load wanpipe modules!"
            echo
            echo "Make sure you are installing correct DEBS for your system!"
            echo
            echo "Otherwise call Sangoma Tech Support"
        fi
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

exit 0