<?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;
    }
}