Introduce integration events, drop

src/TenancyServiceProvider.php

@@ -59,13 +59,8 @@ class TenancyServiceProvider extends ServiceProvider
 
     public function setTelescopeTags()
     {
-        $original_callback = Telescope::$tagUsing;
-
-        Telescope::tag(function (\Laravel\Telescope\IncomingEntry $entry) use ($original_callback) {
-            $tags = [];
-            if (! \is_null($original_callback)) {
-                $tags = $original_callback($entry);
-            }
+        Telescope::tag(function (\Laravel\Telescope\IncomingEntry $entry) {
+            $tags = $this->integration('telescope', $entry);
 
             if (\in_array('tenancy', request()->route()->middleware())) {
                 $tags = \array_merge($tags, [

src/Traits/TenantManagerEvents.php

@@ -18,6 +18,13 @@ trait TenantManagerEvents
         'ended' => [],
     ];
 
+    /**
+     * Integration listeners.
+     *
+     * @var callable[][]
+     */
+    protected $integrationListeners = [];
+
     /**
      * Register a listener that will be executed before tenancy is bootstrapped.
      *
@@ -82,4 +89,39 @@ trait TenantManagerEvents
             return $prevents->merge($listener($this) ?? []);
         }, collect([]));
     }
+
+    /**
+     * Register a callback for an integration event.
+     *
+     * @param string $name
+     * @param callable $callback
+     * @return void
+     */
+    public function integrationEvent(string $name, callable $callback)
+    {
+        if (array_key_exists($name, $this->integrationListeners)) {
+            $this->integrationListeners[$name][] = $callback;
+        } else {
+            $this->integrationListeners[$name] = [$callback];
+        }
+    }
+
+    /**
+     * Return callbacks for an integration event.
+     *
+     * @param string $name
+     * @param mixed $arguments,...
+     * @return callable[]
+     */
+    public function integration(string $name, ...$arguments)
+    {
+        if ($arguments) {
+            // If $arguments are supplied, execute all listeners with arguments.
+            return array_reduce($this->integrationListeners[$name] ?? [], function ($tags, $listener) use ($arguments) {
+                return array_merge($tags, $listener(...$arguments));
+            }, []);
+        };
+
+        return $this->integrationListeners[$name];
+    }
 }