<?php

class Router{

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

    function Route( $default='more/404' ) {
        $this->default = $default;
        $this->baseInclusionPath = 'controllers/';

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

    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);

        if ($app==null) {
            $app = $match[0];
        }

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

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