1<?php
  2/**
  3 * Copyright © 2019-2026 Rhubarb Tech Inc. All Rights Reserved.
  4 *
  5 * The Object Cache Pro Software and its related materials are property and confidential
  6 * information of Rhubarb Tech Inc. Any reproduction, use, distribution, or exploitation
  7 * of the Object Cache Pro Software and its related materials, in whole or in part,
  8 * is strictly forbidden unless prior permission is obtained from Rhubarb Tech Inc.
  9 *
 10 * In addition, any reproduction, use, distribution, or exploitation of the Object Cache Pro
 11 * Software and its related materials, in whole or in part, is subject to the End-User License
 12 * Agreement accessible in the included `LICENSE` file, or at: https://objectcache.pro/eula
 13 */
 14
 15declare(strict_types=1);
 16
 17namespace RedisCachePro;
 18
 19use RedisCachePro\Configuration\Configuration;
 20
 21defined('ABSPATH') || exit;
 22
 23spl_autoload_register(function ($fqcn) {
 24    if (strpos($fqcn, 'RedisCachePro\\') === 0) {
 25        require_once str_replace(['\\', 'RedisCachePro/'], ['/', __DIR__ . '/src/'], $fqcn) . '.php';
 26    }
 27});
 28
 29(function ($config) {
 30    if (defined('WP_REDIS_CONFIG') || empty($config)) {
 31        return;
 32    }
 33
 34    $config = json_decode((string) $config, true);
 35    $error = json_last_error();
 36
 37    if ($error !== JSON_ERROR_NONE || ! is_array($config)) {
 38        log('warning', sprintf(
 39            'Unable to decode `OBJECTCACHE_CONFIG` environment variable (%s)',
 40            json_last_error_msg()
 41        ));
 42
 43        return;
 44    }
 45
 46    $array_replace_recursive = function ($current, $override) use (&$array_replace_recursive) {
 47        foreach ($override as $key => $value) {
 48            if (array_key_exists($key, $current) && is_array($current[$key]) && $current[$key] !== array_values($current[$key])) {
 49                $current[$key] = $array_replace_recursive($current[$key], $value);
 50            } else {
 51                $current[$key] = $value;
 52            }
 53        }
 54
 55        return $current;
 56    };
 57
 58    $array_merge_recursive = function ($current, $merge) use (&$array_merge_recursive) {
 59        foreach ($merge as $key => $value) {
 60            if (! array_key_exists($key, $current) || ! is_array($current[$key])) {
 61                $current[$key] = $value;
 62            } elseif ($current[$key] === array_values($current[$key])) {
 63                $current[$key] = array_merge($current[$key], (array) $value);
 64            } else {
 65                $current[$key] = $array_merge_recursive($current[$key], $value);
 66            }
 67        }
 68
 69        return $current;
 70    };
 71
 72    if (defined('OBJECTCACHE_OVERRIDE')) {
 73        $config = $array_replace_recursive($config, OBJECTCACHE_OVERRIDE);
 74    } elseif (defined('OBJECTCACHE_MERGE')) {
 75        $config = $array_merge_recursive($config, OBJECTCACHE_MERGE);
 76    }
 77
 78    define('WP_REDIS_CONFIG', $config);
 79})(getenv('OBJECTCACHE_CONFIG'));
 80
 81if (! function_exists(__NAMESPACE__ . '\log')) :
 82    /**
 83     * Log a message to `error_log()` and try to respect the configured log levels.
 84     *
 85     * @param  string  $level
 86     * @param  string  $message
 87     * @return void
 88     */
 89    function log($level, $message)
 90    {
 91        $config = Configuration::safelyFrom(
 92            defined('WP_REDIS_CONFIG') ? WP_REDIS_CONFIG : []
 93        );
 94
 95        if ($config->log_levels && ! \in_array($level, $config->log_levels)) {
 96            return;
 97        }
 98
 99        \error_log("objectcache.{$level}: {$message}");
100    }
101endif;
102