<?php

namespace App\Core;

/**
 * NovaCore Middleware Pipeline
 * Stackable middleware system
 */
class Middleware
{
    private array $middlewares = [];

    /**
     * Add middleware to stack
     */
    public function add($middleware): void
    {
        $this->middlewares[] = $middleware;
    }

    /**
     * Run middleware pipeline
     */
    public function run(string $method, string $uri): void
    {
        $index = 0;
        $this->executeMiddleware($index, $method, $uri);
    }

    /**
     * Execute middleware recursively
     */
    private function executeMiddleware(int &$index, string $method, string $uri): void
    {
        if ($index >= count($this->middlewares)) {
            return;
        }

        $middleware = $this->middlewares[$index++];

        if (is_string($middleware)) {
            $middleware = new $middleware();
        }

        if (is_object($middleware) && method_exists($middleware, 'handle')) {
            $middleware->handle($method, $uri, function () use (&$index, $method, $uri) {
                $this->executeMiddleware($index, $method, $uri);
            });
        } else {
            // Continue to next middleware
            $this->executeMiddleware($index, $method, $uri);
        }
    }

    /**
     * Get all registered middlewares
     */
    public function getMiddlewares(): array
    {
        return $this->middlewares;
    }
}