<?php

class Router{

    private $default;
    private $rule;
    private $path;
    private $baseInclusionPath;

        function __construct( $default='more/404', $path = null ) {
                $this->default = $default;
                $this->baseInclusionPath = 'controllers/';

                //> $_SERVER['REQUEST_URI'] sample: /page/file?abc
                if ($path == null) {
                   $this->path = $_SERVER['REQUEST_URI']
                   $this->path = substr($this->path,1);    //> Removing leading slash
                } else
                   $this-path = $path;
        }

        public function add( $pattern, $app = null ) {
            $this->rule[$pattern] = $app;
                return $this;
        }

        public function dispatch() {

                foreach($this->rule as $pattern=>$app) {
                        if (preg_match('#^'.$pattern.'$#i',$this->path,$match)) {
                                print_r($match);
                                $this->run($app,$match);

                                return true;
                        }
                }

                //> Nothing Matched run 404 error
                $this->run($this->default);
        }

        private function run($app,$match=array()) {

                //> First entry is all the string matched
                array_shift($match);

                $method=null;
                if ($app==null) {
                    $app = $match[0];
                } else if (is_array($app)) {
                    $app = $app[0];
                    $method = $app[1];
                }

                require($this->baseInclusionPath.$app.'.php');

                //> Remove the controller name
                array_shift($match);

                if ($method==null)
                    $method = $match[0];

                //> Remove the method name
                array_shift($match);

                $app = 'Controller'.ucfirst($app);
                if (function_exists($app)) {
                        call_user_func_array($app,$match);
                } else {
                        $app = new $app;
                        call_user_func_array(array($app, $method), $match);
                }
        }
}