<?php
/**
 * Copyright 2021 Google LLC.
 *
 * 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
 *
 *     http://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 instructions on how to run the full sample:
 *
 * @see https://github.com/GoogleCloudPlatform/php-docs-samples/tree/main/spanner/README.md
 */

namespace Google\Cloud\Samples\Spanner;

// [START spanner_get_instance_config]
use Google\Cloud\Spanner\SpannerClient;

/**
 * Gets the leader options for the instance configuration.
 *
 * @param string $instanceConfig The name of the instance configuration.
 */
function get_instance_config(string $instanceConfig): void
{
    $spanner = new SpannerClient();
    $config = $spanner->instanceConfiguration($instanceConfig);
    printf('Available leader options for instance config %s: %s' . PHP_EOL,
        $instanceConfig, implode(',', $config->info()['leaderOptions'])
    );
}
// [END spanner_get_instance_config]

// The following 2 lines are only needed to run the samples
require_once __DIR__ . '/../../testing/sample_helpers.php';
\Google\Cloud\Samples\execute_sample(__FILE__, __NAMESPACE__, $argv);
