MySQL Settings: Check performance settings (#268)

* MySQL Settings: Check performance settings

* MySQL settings check: Move documentation URL to constant

Author: M-arcus

src/Components/Health/Checker/PerformanceChecker/MysqlSettingsChecker.php

@@ -0,0 +1,79 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Frosh\Tools\Components\Health\Checker\PerformanceChecker;
+
+use Doctrine\DBAL\Connection;
+use Frosh\Tools\Components\Health\Checker\CheckerInterface;
+use Frosh\Tools\Components\Health\HealthCollection;
+use Frosh\Tools\Components\Health\SettingsResult;
+use Shopware\Core\DevOps\Environment\EnvironmentHelper;
+
+class MysqlSettingsChecker implements PerformanceCheckerInterface, CheckerInterface
+{
+    public const DOCUMENTATION_URL = 'https://developer.shopware.com/docs/guides/hosting/performance/performance-tweaks.html#mysql-configuration';
+
+    public const MYSQL_GROUP_CONCAT_MAX_LEN = 320000;
+
+    public const MYSQL_SQL_MODE_PART = 'ONLY_FULL_GROUP_BY';
+
+    public function __construct(private readonly Connection $connection) {}
+
+    public function collect(HealthCollection $collection): void
+    {
+        $this->checkGroupConcatMaxLen($collection);
+        $this->checkSqlMode($collection);
+        $this->checkCheckDefaultEnvironmentSessionVariables($collection);
+    }
+
+    private function checkGroupConcatMaxLen(HealthCollection $collection): void
+    {
+        /** @var string|false $groupConcatMaxLen */
+        $groupConcatMaxLen =  $this->connection->fetchOne('SELECT @@group_concat_max_len');
+        if (!$groupConcatMaxLen || (int) $groupConcatMaxLen < self::MYSQL_GROUP_CONCAT_MAX_LEN) {
+            $collection->add(
+                SettingsResult::error(
+                    'sql_group_concat_max_len',
+                    'MySQL value group_concat_max_len',
+                    (string) $groupConcatMaxLen,
+                    'Atleast ' . self::MYSQL_GROUP_CONCAT_MAX_LEN,
+                    self::DOCUMENTATION_URL,
+                ),
+            );
+        }
+    }
+
+    private function checkSqlMode(HealthCollection $collection): void
+    {
+        /** @var string|false $sqlMode */
+        $sqlMode = $this->connection->fetchOne('SELECT @@sql_mode');
+        if (!$sqlMode || !str_contains($sqlMode, self::MYSQL_SQL_MODE_PART)) {
+            $collection->add(
+                SettingsResult::error(
+                    'sql_mode',
+                    'MySQL value sql_mode',
+                    (string) $sqlMode,
+                    'Contains ' . self::MYSQL_SQL_MODE_PART,
+                    self::DOCUMENTATION_URL,
+                ),
+            );
+        }
+    }
+
+    private function checkCheckDefaultEnvironmentSessionVariables(HealthCollection $collection): void
+    {
+        $setSessionVariables = (bool) EnvironmentHelper::getVariable('SQL_SET_DEFAULT_SESSION_VARIABLES', true);
+        if ($setSessionVariables) {
+            $collection->add(
+                SettingsResult::warning(
+                    'sql_set_default_session_variables',
+                    'MySQL session vars are set on each connect',
+                    'enabled',
+                    'disabled',
+                    self::DOCUMENTATION_URL,
+                ),
+            );
+        }
+    }
+}