Identification middleware & tests

src/Middleware/IdentificationMiddleware.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Stancl\Tenancy\Middleware;
+
+use Stancl\Tenancy\Contracts\TenantCouldNotBeIdentifiedException;
+use Stancl\Tenancy\Contracts\TenantResolver;
+use Stancl\Tenancy\Tenancy;
+
+abstract class IdentificationMiddleware
+{
+    /** @var callable */
+    public static $onFail;
+
+    /** @var Tenancy */
+    protected $tenancy;
+
+    /** @var TenantResolver */
+    protected $resolver;
+
+    public function initializeTenancy($request, $next, ...$resolverArguments)
+    {
+        try {
+            $this->tenancy->initialize(
+                $this->resolver->resolve(...$resolverArguments)
+            );
+        } catch (TenantCouldNotBeIdentifiedException $e) {
+            $onFail = static::$onFail ?? function ($e) {
+                throw $e;
+            };
+
+            return $onFail($e, $request, $next);
+        }
+
+        return $next($request);
+    }
+}