feat: add method has to DataRepository

src/DataRepository/DataRepositoryInterface.php

@@ -8,6 +8,8 @@
 
 interface DataRepositoryInterface
 {
+    public function has(?string $indexName = null): bool;
+
     /**
      * @return list<TimezoneData>
      */

src/DataRepository/JsonFileDataRepository.php

@@ -20,6 +20,11 @@ public function __construct(
         private GeoJsonToTimezoneDataConverter $geoJsonConverter = new GeoJsonToTimezoneDataConverter(),
     ) {}
 
+    public function has(?string $indexName = null): bool
+    {
+        return file_exists($this->getIndexFilePath($indexName));
+    }
+
     /**
      * @return list<TimezoneData>
      */
@@ -51,11 +56,6 @@ public function write(array $data, ?string $indexName = null): void
         }
     }
 
-    private function getIndexFilePath(?string $indexName): string
-    {
-        return $indexName === null ? $this->baseGeoDataPath : $this->dataDirectory . $indexName . '.json';
-    }
-
     public function remove(?string $indexName = null): void
     {
         if ($indexName === null) {
@@ -64,4 +64,11 @@ public function remove(?string $indexName = null): void
 
         @unlink($this->getIndexFilePath($indexName));
     }
+
+    private function getIndexFilePath(?string $indexName): string
+    {
+        $indexPath = rtrim($this->dataDirectory, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR . 'timezones' . DIRECTORY_SEPARATOR . $indexName . '.json';
+
+        return $indexName === null ? $this->baseGeoDataPath : $indexPath;
+    }
 }

src/Indexer.php

@@ -15,7 +15,7 @@
 readonly class Indexer
 {
     public const DEFAULT_INDEX_LEVEL = 6;
-    
+
     public function __construct(
         private DataRepositoryInterface $dataRepository,
         private QuadrantBuilder $quadrantBuilder = new QuadrantBuilder(),