#!/bin/sh

# Copyright (C) 2016-2023 Internet Systems Consortium, Inc. ("ISC")
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# shellcheck disable=SC1091
# SC1091: Not following: ... was not specified as input (see shellcheck -x).

# Exit with error if commands exit with non-zero and if undefined variables are
# used.
set -eu

# shellcheck disable=SC2034
# SC2034: ... appears unused. Verify use (or export if used externally).
prefix="/usr"

# Include utilities. Use installed version if available and
# use build version if it isn't.
if test -f "${prefix}/share/kea/scripts/admin-utils.sh"; then
    . "${prefix}/share/kea/scripts/admin-utils.sh"
else
    . "/build/kea/src/kea-2.4.0/src/bin/admin/admin-utils.sh"
fi

VERSION=$(mysql_version "$@")

if [ "$VERSION" != "1.0" ]; then
    printf 'This script upgrades 1.0 to 2.0. '
    printf 'Reported version is %s. Skipping upgrade.\n' "${VERSION}"
    exit 0
fi

mysql "$@" <<EOF
-- This line starts the schema upgrade to version 2.0.

ALTER TABLE lease6
    ADD COLUMN hwaddr varbinary(20),
    ADD COLUMN hwtype smallint unsigned,
    ADD COLUMN hwaddr_source int unsigned;

CREATE TABLE lease_hwaddr_source (
    hwaddr_source INT PRIMARY KEY NOT NULL,
    name VARCHAR(40)
) ENGINE = INNODB;

-- See src/lib/dhcp/dhcp/pkt.h for detailed explanation
INSERT INTO lease_hwaddr_source VALUES (1, 'HWADDR_SOURCE_RAW');
INSERT INTO lease_hwaddr_source VALUES (2, 'HWADDR_SOURCE_IPV6_LINK_LOCAL');
INSERT INTO lease_hwaddr_source VALUES (4, 'HWADDR_SOURCE_DUID');
INSERT INTO lease_hwaddr_source VALUES (8, 'HWADDR_SOURCE_CLIENT_ADDR_RELAY_OPTION');
INSERT INTO lease_hwaddr_source VALUES (16, 'HWADDR_SOURCE_REMOTE_ID');
INSERT INTO lease_hwaddr_source VALUES (32, 'HWADDR_SOURCE_SUBSCRIBER_ID');
INSERT INTO lease_hwaddr_source VALUES (64, 'HWADDR_SOURCE_DOCSIS');

# Update the schema version number.
UPDATE schema_version
    SET version = '2', minor = '0';

# This line concludes the schema upgrade to version 2.0.

EOF
