<?php

namespace Load;

class Loader {

    private static
            $_controller = null,
            $_method = null,
            $_params = [];

    private function __construct() {

    }

    public static function start() {
        self::autoload();
        self::defaultRouter();
    }

    private static function autoload() {
        spl_autoload_register(function($class) {
            $explodedPath = explode("\\", trim($class, '\\'));
            $count = count($explodedPath);
            $filename = DIRECTORY_SEPARATOR . ucfirst(strtolower($explodedPath[$count - 1])) . '.php';
            unset($explodedPath[$count - 1]);
            $path = implode(DIRECTORY_SEPARATOR, $explodedPath);
            if (file_exists($path . $filename)) {
                require_once $path . $filename;
            } else {
                throw new \Exception("Page not found", "500");
            }
        });
    }

    private static function defaultRouter() {

        self::$_controller = \Models\Config::default_controller;
        self::$_method = \Models\Config::default_method;
        $url = explode("/", \Models\Sanitaze::clear(rtrim($_GET['url'], '/')));
        if (isset($url[0]) && $url[0] != '') {
            self::$_controller = "\\Controllers\\" . $url[0];
            unset($url[0]);
        }

        self::$_controller = new self::$_controller;

        if (isset($url[1]) && $url[1] != '') {
            if (method_exists(self::$_controller, $url[1])) {
                self::$_method = $url[1];
                unset($url[1]);
            }
        }

        self::$_params = $url ? array_values($url) : [];

        call_user_func_array([self::$_controller, self::$_method], self::$_params);
    }

}