Revert "Drop support for Carbon 2"

This reverts commit afd141c.

composer.json

@@ -21,7 +21,7 @@
         "league/glide": "^2.3",
         "maennchen/zipstream-php": "^3.1",
         "michelf/php-smartypants": "^1.8.1",
-        "nesbot/carbon": "^3.0",
+        "nesbot/carbon": "^2.62.1 || ^3.0",
         "pixelfear/composer-dist-plugin": "^0.1.4",
         "rebing/graphql-laravel": "^9.7",
         "rhukster/dom-sanitizer": "^1.0.6",

src/Http/Middleware/Localize.php

@@ -31,10 +31,7 @@ public function handle($request, Closure $next)
         app()->setLocale($site->lang());
 
         // Get original Carbon format so it can be restored later.
-        $reflection = new ReflectionClass($date = Date::now());
-        $factory = $reflection->getMethod('getFactory');
-        $factory->setAccessible(true);
-        $originalToStringFormat = Arr::get($factory->invoke($date)->getSettings(), 'toStringFormat');
+        $originalToStringFormat = $this->getToStringFormat();
         Date::setToStringFormat(Statamic::dateFormat());
 
         $response = $next($request);
@@ -47,4 +44,29 @@ public function handle($request, Closure $next)
 
         return $response;
     }
+
+    /**
+     * This method is used to get the current toStringFormat for Carbon, in order for us
+     * to restore it later. There's no getter for it, so we need to use reflection.
+     *
+     * @throws \ReflectionException
+     */
+    private function getToStringFormat(): ?string
+    {
+        $reflection = new ReflectionClass($date = Date::now());
+
+        // Carbon 2.x
+        if ($reflection->hasProperty('toStringFormat')) {
+            $format = $reflection->getProperty('toStringFormat');
+            $format->setAccessible(true);
+
+            return $format->getValue();
+        }
+
+        // Carbon 3.x
+        $factory = $reflection->getMethod('getFactory');
+        $factory->setAccessible(true);
+
+        return Arr::get($factory->invoke($date)->getSettings(), 'toStringFormat');
+    }
 }

tests/Feature/GraphQL/Fieldtypes/DateFieldtypeTest.php

@@ -16,6 +16,12 @@ public function setUp(): void
         parent::setUp();
 
         Carbon::macro('getToStringFormat', function () {
+            // Carbon 2.x
+            if (property_exists(static::this(), 'toStringFormat')) {
+                return static::$toStringFormat;
+            }
+
+            // Carbon 3.x
             $reflection = new ReflectionClass(self::this());
             $factory = $reflection->getMethod('getFactory');
             $factory->setAccessible(true);