<?php

/*
 * Copyright 2005 - 2025 Centreon (https://www.centreon.com/)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * For more information : contact@centreon.com
 *
 */

include_once __DIR__ . '/../../class/centreonLog.class.php';
$centreonLog = new CentreonLog();

// error specific content
$versionOfTheUpgrade = 'UPGRADE - 20.04.19:';

$pearDB = new CentreonDB('centreon', 3, false);

/**
 * Query with transaction
 */
try {
    $pearDB->beginTransaction();

    // Purge all session.
    $errorMessage = 'Impossible to purge the table session';
    $pearDB->query('DELETE FROM `session`');

    $errorMessage = 'Impossible to purge the table ws_token';
    $pearDB->query('DELETE FROM `ws_token`');

    $constraintStatement = $pearDB->query(
        "SELECT COUNT(*) as count FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE CONSTRAINT_NAME='session_ibfk_1'"
    );
    if (($constraint = $constraintStatement->fetch()) && (int) $constraint['count'] === 0) {
        $errorMessage = 'Impossible to add Delete Cascade constraint on the table session';
        $pearDB->query(
            'ALTER TABLE `session` ADD CONSTRAINT `session_ibfk_1` FOREIGN KEY (`user_id`) '
            . 'REFERENCES `contact` (`contact_id`) ON DELETE CASCADE'
        );
    }

    $pearDB->commit();
} catch (Exception $e) {
    $pearDB->rollBack();
    $centreonLog->insertLog(
        4,
        $versionOfTheUpgrade . $errorMessage
        . ' - Code : ' . (int) $e->getCode()
        . ' - Error : ' . $e->getMessage()
        . ' - Trace : ' . $e->getTraceAsString()
    );

    throw new Exception($versionOfTheUpgrade . $errorMessage, (int) $e->getCode(), $e);
}
