#!/bin/sh -e

. /usr/share/debconf/confmodule

if [ "$1" = "configure" ]; then
	db_get samba4/server-role || true
	SERVER_ROLE="$RET"
fi

if [ "$1" = "configure" -a "$SERVER_ROLE" != "none" ]; then
	db_get samba-common/workgroup || true
	DOMAIN="$RET"
	db_get samba4/realm || true
	REALM="$RET"
	# FIXME: Urgh.. ideally samba-tool would be able to update this:
	# Update realm setting and server role setting
	if [ -f "/etc/samba/smb.conf" ]; then
		/usr/share/samba/setoption.py "realm" "${REALM}"
		/usr/share/samba/setoption.py "server role" "${SERVER_ROLE}"
		if [ "$SERVER_ROLE" = "domain controller" ]; then
			/usr/share/samba/addshare.py sysvol /var/lib/samba/sysvol
			/usr/share/samba/addshare.py netlogon "/var/lib/samba/sysvol/$REALM/scripts"
		fi
	fi

	# See if we're upgrading from Samba 3
	if [ ! -z "$2" ] && dpkg --compare-versions "$2" lt "3.9.0"; then
		db_get samba4/upgrade-from-v3 || true
		if [ "$RET" = "true" ]; then
			samba-tool domain samba3upgrade --dbdir=/var/lib/samba
		fi
	elif [ ! -z "$2" ] && dpkg --compare-versions "$2" lt "4.0.0~alpha12"; then
		# Upgrade from previous Samba 4 installation
		if [ -f /etc/samba/smb.conf ]; then
			samba-tool domain upgradeprovision --full
		fi
	elif [ -e /var/lib/samba/private/sam.ldb ]; then
		# Upgrade from previous Samba 4 installation
		if [ -f /etc/samba/smb.conf ]; then
			samba-tool dbcheck --fix --yes
		fi
	fi
	# Provision from scratch if we need to
	if [ ! -e /var/lib/samba/private/sam.ldb ]; then
		db_get samba4/admin_password
		if [ -z "$RET" ]; then
			PASSOPTION=" "
		else
			PASSOPTION="--adminpass='$RET' "
		fi

		# Install from scratch
		# samba-common.postinst takes care of setting the work group.
		samba-tool domain provision --realm="$REALM" --domain="$DOMAIN" \
		    --server-role="$SERVER_ROLE" --use-ntvfs $PASSOPTION

		# Forget we ever saw the password
		db_set samba4/admin_password ""
		db_set samba4/admin_password_again ""
	fi
fi

#DEBHELPER#

db_stop

exit 0