1 files changed, 31 insertions, 0 deletions
diff --git a/src/Build/TopLevelHandler.php b/src/Build/TopLevelHandler.php
new file mode 100644
index 0000000..a0c7f10
--- /dev/null
+++ b/src/Build/TopLevelHandler.php
@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Zhineng\Region\Build;
+
+use Symfony\Component\VarExporter\VarExporter;
+
+final class TopLevelHandler implements RegionHandler
+{
+    /**
+     * @var int[]
+     */
+    private array $data = [];
+
+    public function handle(string $code, string $name): void
+    {
+        if (substr($code, -4) !== '0000') {
+            return;
+        }
+
+        $this->data[] = (int) $code;
+    }
+
+    public function export(string $destination): void
+    {
+        $exported = VarExporter::export($this->data);
+
+        file_put_contents($destination, '<?php return '.$exported.';');
+    }
+}