add internal Watch\Implementation

Author: Baptouuuu

src/Watch.php

@@ -4,6 +4,7 @@
 namespace Innmind\FileWatch;
 
 use Innmind\FileWatch\Watch\{
+    Implementation,
     Kind,
     Logger,
     Fallback,
@@ -19,7 +20,7 @@
 final class Watch
 {
     private function __construct(
-        private Kind|Logger $implementation,
+        private Implementation $implementation,
     ) {
     }
 

src/Watch/Implementation.php

@@ -0,0 +1,15 @@
+<?php
+declare(strict_types = 1);
+
+namespace Innmind\FileWatch\Watch;
+
+use Innmind\FileWatch\Ping;
+use Innmind\Url\Path;
+
+/**
+ * @internal
+ */
+interface Implementation
+{
+    public function __invoke(Path $file): Ping\Implementation;
+}

src/Watch/Kind.php

@@ -9,14 +9,15 @@
 /**
  * @internal
  */
-final class Kind
+final class Kind implements Implementation
 {
     public function __construct(
         private Fallback $files,
         private Stat $directories,
     ) {
     }
 
+    #[\Override]
     public function __invoke(Path $file): Ping\Implementation
     {
         return match ($file->directory()) {

src/Watch/Logger.php

@@ -10,14 +10,15 @@
 /**
  * @internal
  */
-final class Logger
+final class Logger implements Implementation
 {
     private function __construct(
-        private Kind $watch,
+        private Implementation $watch,
         private LoggerInterface $logger,
     ) {
     }
 
+    #[\Override]
     public function __invoke(Path $path): Ping\Implementation
     {
         return Ping\Logger::psr(
@@ -27,17 +28,8 @@ public function __invoke(Path $path): Ping\Implementation
         );
     }
 
-    public static function psr(Kind|self $watch, LoggerInterface $logger): self
+    public static function psr(Implementation $watch, LoggerInterface $logger): self
     {
-        return new self(self::extract($watch), $logger);
-    }
-
-    private static function extract(Kind|self $watch): Kind
-    {
-        if ($watch instanceof Kind) {
-            return $watch;
-        }
-
-        return self::extract($watch->watch);
+        return new self($watch, $logger);
     }
 }