#!/bin/sh

set -e

# Debconf
. /usr/share/debconf/confmodule

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

CONFDIR="/etc/apache2"
sitesdir=${CONFDIR}/sites-available
HOST=$(hostname -f)
DOMAIN=$(hostname -d)
sitefiles=


case "$1" in
	purge)
                # Get CARNet config files in /etc/apache2/sites-available directory.
                if [ -d "${sitesdir}" ] && [ -n "$(ls ${sitesdir}/)" ]; then

                    for file in ${sitesdir}/*; do
                        if [ -f "$file" ]; then
                            if egrep -q "^## Begin - Generated by CARNet package apache2-cn$" $file; then
                                site=`echo "$file" | sed 's/^\/.*\///'`
                                sitefiles="$sitefiles $site"
                            fi
                        fi
                    done
                fi
		
		# Remove our vhosts.
		if [ -n "$sitefiles" ]; then
		    for site in $sitefiles; do
		
			if [ -e "$sitesdir/$site" ]; then

			    cp_echo "CN: Removing $site site configuration file."
			    rm -f $sitesdir/$site
			fi
		    done
		fi
		
		# Remove default DocumentRoot if there's only a one line index.html there
		docroots="/var/www/$HOST /var/www/www.$DOMAIN"
		
		if [ -d "/var/www" ]; then
		
    		    for docroot in $docroots; do

			if [ -d $docroot ]; then
			    if [ "x$(echo ${docroot}/*)" = "x${docroot}/index.html" ]; then
				if [ "$(wc -l ${docroot}/index.html | awk '{print $1}')" -eq 1 ]; then
		
				    cp_echo "CN: Removing document root directory ${docroot}."
				    rm -f $docroot/index.html
				    rmdir $docroot || true
				fi
			    fi
			fi
		    done
		fi
		
		# Remove CARNet specific configuration.
		if [ -d "${CONFDIR}/conf.d" ] && [ -n "$(ls ${CONFDIR}/conf.d/)" ]; then
		    cp_echo "CN: Disabling CARNet specific configuration."
	            for file in ${CONFDIR}/conf.d/*; do
			if [ -f "$file" ]; then
	            	    if egrep -q "^## Begin - Generated by CARNet package apache2-cn$" $file; then
				rm -f $file
			    fi
			fi
	            done
		fi

		# Debconf purge
		db_purge
		
		# Mail root
		cp_mail "apache2-cn"
		;;
	*)
		;;
esac


db_stop

exit 0