feat: tracking integration with GTM and CMP

src/Service/DomainConfigProvider.php

@@ -0,0 +1,75 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service;
+
+use App\Model\DomainConfig;
+use Symfony\Component\HttpFoundation\RequestStack;
+
+/**
+ * Resolves domain-specific configuration based on the current request host.
+ *
+ * Matches the request host against configured domain patterns, supporting both
+ * exact matches and subdomain matching (e.g., "example.com" matches "www.example.com").
+ * Returns a default configuration when no matching domain is found.
+ */
+class DomainConfigProvider
+{
+    /**
+     * @var array<string, DomainConfig>
+     */
+    private array $configCache = [];
+
+    /**
+     * @param array<string, array{theme?: string, gtm_id?: string, cmp_url?: string}> $domainConfig
+     */
+    public function __construct(
+        private readonly array $domainConfig,
+        private readonly RequestStack $requestStack,
+    ) {
+    }
+
+    /**
+     * Returns the configuration for the current request host.
+     */
+    public function getConfig(): DomainConfig
+    {
+        $request = $this->requestStack->getCurrentRequest();
+
+        if (null === $request) {
+            return DomainConfig::default();
+        }
+
+        return $this->getConfigForHost($request->getHost());
+    }
+
+    /**
+     * Returns the configuration for a specific host.
+     *
+     * @param string $host The host to resolve configuration for
+     */
+    public function getConfigForHost(string $host): DomainConfig
+    {
+        $host = strtolower($host);
+
+        if (isset($this->configCache[$host])) {
+            return $this->configCache[$host];
+        }
+
+        foreach ($this->domainConfig as $pattern => $config) {
+            $pattern = strtolower($pattern);
+
+            if ($host === $pattern || str_ends_with($host, '.'.$pattern)) {
+                $domainConfig = DomainConfig::fromArray($config);
+                $this->configCache[$host] = $domainConfig;
+
+                return $domainConfig;
+            }
+        }
+
+        $this->configCache[$host] = DomainConfig::default();
+
+        return $this->configCache[$host];
+    }
+}