1 files changed, 42 insertions, 0 deletions
diff --git a/src/HookManager.php b/src/HookManager.php
new file mode 100644
index 0000000..96ca8d3
--- /dev/null
+++ b/src/HookManager.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace FlatFileForms;
+
+class HookManager
+{
+  private array $actions = [];
+  private array $filters = [];
+
+  public function addAction(string $name, callable $function, int $priority = 10): void
+  {
+    $this->action[$name][$priority][] = compact('name', 'function', 'priority');
+  }
+
+  public function addFilter(string $name, callable $function, int $priority = 10): void
+  {
+    $this->filters[$name][$priority][] = compact('name', 'callable', 'priority');
+  }
+
+  public function doAction(string $name, mixed ...$arguments): void
+  {
+    foreach ($this->actions[$name] as $actions) {
+      foreach ($actions as $action) {
+        call_user_func_array($action['function'], $arguments);
+      }
+    }
+  }
+
+  public function applyFilter(string $name, mixed $value, mixed ...$arguments): mixed
+  {
+    // set $value as first argument
+    array_unshift($arguments, $value);
+
+    foreach ($this->filters[$name] as $filters) {
+      foreach ($filters as $filter) {
+        $value = call_user_func_array($filter['function'], $arguments);
+      }
+    }
+
+    return $value;
+  }
+}