#!/bin/sh

# Copyright (C) 2023-2025 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/.

# 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="@prefix@"

# Include utilities based on location of this script. Check for sources first,
# so that the unexpected situations with weird paths fall on the default
# case of installed.
script_path=$(cd "$(dirname "${0}")" && pwd)
if test "${script_path}" = "@abs_top_builddir@/src/share/database/scripts/pgsql"; then
    # shellcheck source=./src/bin/admin/admin-utils.sh.in
    . "@abs_top_builddir@/src/bin/admin/admin-utils.sh"
else
    # shellcheck source=./src/bin/admin/admin-utils.sh.in
    . "@datarootdir@/@PACKAGE_NAME@/scripts/admin-utils.sh"
fi

VERSION=$(pgsql_version "$@")

if [ "$VERSION" != "21.0" ]; then
    printf 'This script upgrades 21.0 to 22.0. '
    printf 'Reported version is %s. Skipping upgrade.\n' "${VERSION}"
    exit 0
fi

psql "$@" >/dev/null <<EOF
START TRANSACTION;

-- This line starts the schema upgrade to version 22.0.

SELECT set_config('kea.disable_audit', 'true', false);

DELETE FROM dhcp4_global_parameter WHERE name='dhcp-ddns.override-no-update';
DELETE FROM dhcp4_global_parameter WHERE name='dhcp-ddns.override-client-update';
DELETE FROM dhcp4_global_parameter WHERE name='dhcp-ddns.replace-client-name';
DELETE FROM dhcp4_global_parameter WHERE name='dhcp-ddns.generated-prefix';
DELETE FROM dhcp4_global_parameter WHERE name='dhcp-ddns.qualifying-suffix';
DELETE FROM dhcp4_global_parameter WHERE name='dhcp-ddns.hostname-char-set';
DELETE FROM dhcp4_global_parameter WHERE name='dhcp-ddns.hostname-char-replacement';

DELETE FROM dhcp6_global_parameter WHERE name='dhcp-ddns.override-no-update';
DELETE FROM dhcp6_global_parameter WHERE name='dhcp-ddns.override-client-update';
DELETE FROM dhcp6_global_parameter WHERE name='dhcp-ddns.replace-client-name';
DELETE FROM dhcp6_global_parameter WHERE name='dhcp-ddns.generated-prefix';
DELETE FROM dhcp6_global_parameter WHERE name='dhcp-ddns.qualifying-suffix';
DELETE FROM dhcp6_global_parameter WHERE name='dhcp-ddns.hostname-char-set';
DELETE FROM dhcp6_global_parameter WHERE name='dhcp-ddns.hostname-char-replacement';

UPDATE dhcp4_global_parameter SET name='reservations-global', value='1', parameter_type=2 WHERE name='reservation-mode' AND value='global';
UPDATE dhcp4_global_parameter SET name='reservations-in-subnet', value='1', parameter_type=2 WHERE name='reservation-mode' AND value='all';
UPDATE dhcp4_global_parameter SET name='reservations-in-subnet', value='0', parameter_type=2 WHERE name='reservation-mode' AND value='disabled';
UPDATE dhcp4_global_parameter SET name='reservations-in-subnet', value='0', parameter_type=2 WHERE name='reservation-mode' AND value='off';
UPDATE dhcp4_global_parameter SET name='reservations-out-of-pool', value='1', parameter_type=2 WHERE name='reservation-mode' AND value='out-of-pool';

UPDATE dhcp6_global_parameter SET name='reservations-global', value='1', parameter_type=2 WHERE name='reservation-mode' AND value='global';
UPDATE dhcp6_global_parameter SET name='reservations-in-subnet', value='1', parameter_type=2 WHERE name='reservation-mode' AND value='all';
UPDATE dhcp6_global_parameter SET name='reservations-in-subnet', value='0', parameter_type=2 WHERE name='reservation-mode' AND value='disabled';
UPDATE dhcp6_global_parameter SET name='reservations-in-subnet', value='0', parameter_type=2 WHERE name='reservation-mode' AND value='off';
UPDATE dhcp6_global_parameter SET name='reservations-out-of-pool', value='1', parameter_type=2 WHERE name='reservation-mode' AND value='out-of-pool';

SELECT set_config('kea.disable_audit', 'false', false);

-- Update the schema version number.
UPDATE schema_version
    SET version = '22', minor = '0';

-- This line concludes the schema upgrade to version 22.0.

-- Commit the script transaction.
COMMIT;

EOF
