#!/bin/sh
# Make Debian Edu's show-welcome-page think that the welcome page has already been shown.

set -e

HOMEDIR=/home/$USER

# Allow lookup script to be replaced using /etc/debian-edu/config
GETDEFAULTHOMEPAGE=$(/usr/share/debian-edu-config/tools/get-default-homepage || true)

if [ -e /etc/debian-edu/config ] ; then
    . /etc/debian-edu/config
fi

if [ -n "$GETDEFAULTHOMEPAGE" ] &&
    echo "$PROFILE" | egrep -q 'Main-Server|Workstation|Roaming-Workstation|LTSP-Server|Minimal' ; then
	host="$(echo $GETDEFAULTHOMEPAGE | sed -re 's@[^:]+://([^/]+)/.*@\1@')"
	if [ "x$host" = "xwww" ] || [ "x$host" = "xwww.intern" ]; then
		for lang in $(echo $LANGCODE | tr : " "); do
			if wget -q -O /dev/null ${GETDEFAULTHOMEPAGE}index.html.$lang ; then
				welcomeurl="${GETDEFAULTHOMEPAGE}index.html.$lang"
				break
			else
				welcomeurl=$GETDEFAULTHOMEPAGE || true
			fi
		done
	else
		welcomeurl=$GETDEFAULTHOMEPAGE || true
	fi
else
	welcomeurl=http://www.skolelinux.org/
fi

if [ -z "$welcomeurl" ] || [ "about:blank" = "$welcomeurl" ]; then
	exit 0
fi

flagdir="$HOMEDIR/.debian-edu"
flagfile="$flagdir/welcome-page-shown"

if [ ! -f "$flagfile" ] ; then
	echo "$welcomeurl" > "$flagfile"
else
	oldwelcomeurl="$(cat $flagfile)"
	if [ "$welcomeurl" != "$oldwelcomeurl" ] ; then
		echo "$welcomeurl" > "$flagfile"
	fi
fi