#!/bin/sh

set -e

# Include CARNet functions.
. /usr/share/carnet-tools/functions.sh

CONFDIR="/etc/apache2"
sitesendir=${CONFDIR}/sites-enabled
sites=


case "$1" in
	remove|deconfigure)
	
		# Get CARNet config files in /etc/apache2/sites-enabled directory.
		if [ -d "${sitesendir}" ] && [ -n "$(ls ${sitesendir}/)" ]; then
		
		    for file in ${sitesendir}/*; do
	                if [ -f "$file" ]; then
	                    if egrep -q "^## Begin - Generated by CARNet package apache2-cn$" $file; then
	                        site=`echo "$file" | sed 's/^\/.*\///'`
				sites="$sites $site"
	                    fi
	                fi
	            done
		fi

		# Deconfigure our web sites, do nothing else
		if [ -n "$sites" ]; then
		    for site in $sites; do
		
			if [ -e "$sitesendir/$site" ]; then

			    cp_echo "CN: Disabling $site site configuration."
			    a2dissite $site >/dev/null || true
			fi
		    done
		fi

		if [ -f "${CONFDIR}/sites-available/default" ]; then
		    cp_echo "CN: Enabling default site configuration for Apache2 web server."
		    a2ensite default >/dev/null || true
		fi

		# Restart Apache2 web server.
		if apache2ctl configtest 2>/dev/null; then

		        # Restart Apache2 web server.
		        if [ -x "/etc/init.d/apache2" ]; then
		            if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
		                invoke-rc.d apache2 force-reload || true
		            else
		                /etc/init.d/apache2 force-reload || true
		            fi
		        fi
		else
		
		        # Something is broken.
		        cp_echo "CN: Your Apache2 configuration seem to be broken."
		        cp_echo "CN: Please, check the service configuration!"
		fi
		
		# Mail root
		cp_mail "apache2-cn"

		echo
		;;
	upgrade)
		;;
	failed-upgrade)
		;;
	*)
		echo "prerm called with unknown argument \`$1'" >&2
		exit 0
		;;
esac

exit 0