First Commit

kernel/HookManager.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Kernel;
+
+class HookManager
+{
+    protected array $actions = [];
+    protected array $filters = [];
+
+    public function addAction(string $hook, callable $listener, int $priority = 10): void
+    {
+        $this->actions[$hook][$priority][] = $listener;
+    }
+
+    public function doAction(string $hook, ...$args): void
+    {
+        if (!isset($this->actions[$hook])) {
+            return;
+        }
+        ksort($this->actions[$hook]);
+        foreach ($this->actions[$hook] as $listeners) {
+            foreach ($listeners as $listener) {
+                $listener(...$args);
+            }
+        }
+    }
+
+    public function addFilter(string $hook, callable $listener, int $priority = 10): void
+    {
+        $this->filters[$hook][$priority][] = $listener;
+    }
+
+    public function applyFilters(string $hook, $value, ...$args)
+    {
+        if (!isset($this->filters[$hook])) {
+            return $value;
+        }
+        ksort($this->filters[$hook]);
+        foreach ($this->filters[$hook] as $listeners) {
+            foreach ($listeners as $listener) {
+                $value = $listener($value, ...$args);
+            }
+        }
+        return $value;
+    }
+}
+