Autodiscover Handlers

composer.json

@@ -16,7 +16,8 @@
     ],
     "require": {
         "php": "^8.1",
-        "guzzlehttp/guzzle": "^7.0"
+        "guzzlehttp/guzzle": "^7.0",
+        "symfony/finder": "^6.0"
     },
     "bin": [
         "./telepathy"

src/Handler/Handler.php

@@ -10,4 +10,9 @@ abstract class Handler
 
     abstract public function responsible(Update $update, TelegramBot $bot): bool;
 
+    public static function __set_state(array $an_array): object
+    {
+        return new static(...$an_array);
+    }
+
 }

src/TelegramBot.php

@@ -2,12 +2,72 @@
 
 namespace Tii\Telepath;
 
+use Symfony\Component\Finder\Finder;
+use Tii\Telepath\Handler\Handler;
 use Tii\Telepath\Layer\Generated;
 use Tii\Telepath\Telegram\Update;
 
 class TelegramBot extends Generated
 {
 
+    protected array $handlers = [];
+
+    public function discoverPsr4(string $path)
+    {
+        foreach (Finder::create()->files()->name('*.php')->in($path) as $file) {
+
+            // For Debugging
+            include_once $file->getRealPath();
+
+            $namespace = $this->getNamespace($file->getRealPath());
+            $class = $namespace . '\\' . $file->getBasename('.php');
+
+            foreach ((new \ReflectionClass($class))->getMethods(\ReflectionMethod::IS_PUBLIC) as $method) {
+
+                $attributes = $method->getAttributes();
+
+                foreach ($attributes as $attribute) {
+
+                    if (! is_subclass_of($attribute->getName(), Handler::class)) {
+                        continue;
+                    }
+
+                    $this->handlers[] = [
+                        'handler' => $attribute->newInstance(),
+                        'class'   => $class,
+                        'method'  => $method->getName()
+                    ];
+
+                }
+
+            }
+
+        }
+
+        ray(var_export($this->handlers, true));
+    }
+
+    private function getNamespace(string $file): ?string
+    {
+        $tokens = token_get_all(file_get_contents($file));
+
+        $namespace = '';
+        $namespaceKeyword = false;
+        foreach ($tokens as $token) {
+            if (is_array($token) && $token[0] === T_NAMESPACE) {
+                $namespaceKeyword = true;
+            } elseif ($namespaceKeyword && ! is_array($token) && $token === ';') {
+                break;
+            } elseif ($namespaceKeyword) {
+                $namespace .= is_array($token) ? $token[1] : $token;
+            }
+        }
+
+        $namespace = trim($namespace);
+
+        return $namespace ?: null;
+    }
+
     public function handleWebhook(): bool
     {
         $input = file_get_contents('php://input');