Add QueryType for Version on Assets (#838)

* Extend Resolver

* Apply php-cs-fixer changes

* Update AssetType.php

* Apply suggestions from code review

Co-authored-by: Christian F. <kontakt+github@christian-feldkirchner.at>

* Apply php-cs-fixer changes

---------

Co-authored-by: leitge <leitge@users.noreply.github.com>
Co-authored-by: Christian F. <kontakt+github@christian-feldkirchner.at>

src/GraphQL/AssetType/AssetType.php

@@ -147,6 +147,10 @@ public function build(&$config)
             'modificationDate' => Type::int(),
             'type' => Type::string(),
             'filesize' => Type::int(),
+            'version' => [
+                'type' => Type::int(),
+                'resolve' => [$resolver, 'resolveVersion'],
+            ],
             'data' => [
                 'type' => Type::string(),
                 'args' => [

src/GraphQL/Resolver/AssetType.php

@@ -355,6 +355,23 @@ public function resolveDuration(ElementDescriptor | null $value = null, array $c
         return $asset->getDuration();
     }
 
+    /**
+     * @throws Exception
+     */
+    public function resolveVersion($value = null, $args = [], $context = [], ResolveInfo $resolveInfo = null)
+    {
+        $asset = $this->getAssetFromValue($value, $context);
+        if ($asset) {
+            foreach (array_reverse($asset->getVersions()) as $version) {
+                if ($asset->getModificationDate() === $version->getDate()) {
+                    return $version->getId();
+                }
+            }
+        }
+
+        return null;
+    }
+
     /**
      * @param ElementDescriptor $value
      * @param array $context