#!/bin/bash

eval "$(ucr shell)"
. /usr/share/univention-lib/base.sh

testnr=1

padded_testnr=$(printf "%.2d" "$testnr")
host_name="foo$padded_testnr"
mac_addr="06:05:04:03:02:$padded_testnr"

univention-install python-univention-directory-manager-legacy-ucd-tcs

subnet_stripped=$(univention-ipcalc6 --calcdns --ip $(get_default_ipv4_address) --netmask $(get_default_netmask) --output reverse)
a=(${subnet_stripped//./ })
subnetmask=$((8 * ${#a[@]}))

udm dhcp/service create --ignore_exists \
	--position "cn=dhcp,$ldap_base" \
	--set service="$domainname"
udm dhcp/subnet create --ignore_exists \
	--superordinate "cn=$domainname,cn=dhcp,$ldap_base" \
	--set subnet="$subnet_stripped.0" \
	--set range="$subnet_stripped.2 $subnet_stripped.254" \
	--set broadcastaddress="$subnet_stripped.255" \
	--set subnetmask=24

service=$(udm dhcp/service list --filter service="$domainname" |
 sed -ne 's/^DN: //p;T;q')
subnet=$(udm dhcp/subnet list --superordinate "$service" |
 sed -ne 's/^  subnet: //p;T;q')
ip_addr="${subnet%.*}.$((2 + RANDOM % 252))"

/usr/share/univention-join/univention-server-join \
 -role mobileclient \
 -hostname "$host_name" \
 -domainname "$domainname" \
 -ip "$ip_addr" \
 -netmask 255.255.255.0 \
 -mac "$mac_addr" \
 -binddn "$(univention-ldapsearch -xLLL cn=Administrator dn |
  sed -ne 's/^dn: //p;T;q')" \
 -bindpwfile <(echo -n univention)

output=$(udm dhcp/host list \
 --superordinate "$service" \
 --filter host="foo$padded_testnr")
if grep -q ^DN: <<<"$output"; then
	echo "$output"
	echo "VERIFIED"
	exit 0
else
	echo "ERROR: dhcp/host record missing"
	echo "Attempting manual creation:"

	udm dhcp/host create --ignore_exists \
		--superordinate "$service" \
		--set host="$host_name" \
		--set hwaddress="ethernet $mac_addr" \
		--set fixedaddress="$ip_addr"

	udm dhcp/host list \
	 --superordinate "$service" \
	 --filter host="foo$padded_testnr"
	udm dhcp/host delete --superordinate "$service" --dn "cn=$host_name,$service"
	echo "REOPEN"
	exit 1
fi