<?php

/**
 * bootstrap.class.php
 * Created by Komma Mediadesign.
 * Author: mike
 * Date: 3/19/13
 */
class Bootstrap extends Controller
{
    public function __construct()
    {
        // Start the session
        Session::init();

        // Convert URL_PAGE & URL_SUB to a controller and a method within a controller
        $LanguageHandler = new LanguageHandler();
        $LanguageHandler->set(URL_LANG);

        // Define controller & method
        defined('URL_PAGE') ? $controller = $LanguageHandler->convert(URL_PAGE) : $controller = 'Login';
        defined('URL_SUB') ? $method = $LanguageHandler->convert(URL_SUB) : $method = '';
        $controller = str_replace('-', '_', $controller);

        //Check whether a user is logged in
        $Login = new Login();
        $Login->loadModel('login');

        if ($Login->Model->isLoggedIn()) {
            // If URL_PAGE is not defined, call the homepage controller.
            if (! defined('URL_PAGE')) {
                require_once DOCUMENT_ROOT.'app/controllers/c_home.class.php';
                $Controller = new Home();
                $Controller->init();
                $Controller->index();

                return false;
            }
        } else {
            $limitAllowed = ['login', 'forgot_pass', 'pass_activation', 'pass_updater'];
            if (! in_array($controller, $limitAllowed)) {
                $controller = 'Login';
                $method = 'index';
            }
        }

        // Load the page
        $this->loadPage($controller, $method);

        return false;
    }

    private function loadPage($name, $method)
    {
        $file = DOCUMENT_ROOT.'app/controllers/c_'.strtolower($name).'.class.php';

        //Check if the controller file exists. If so, require the file and create a new Controller object

        $basicPage = $this->isBasicPage($name);
        if ($basicPage) {
            require_once DOCUMENT_ROOT.'app/controllers/c_basic_page.class.php';
        } elseif (is_file($file)) {
            if (! class_exists($name)) {
                require_once $file;
            }
        } else {
            header('HTTP/1.0 404 Not Found');
            header('location:'.SITE_ROOT.'404/');
            exit;
        }

        // Catch 404
        if ($name == '404') {
            $name = 'Page_Not_Found';
        }
        //  PAGE -> Create a controller object and load the model
        if ($basicPage) {
            $Controller = new Basic_Page($name);
            $Controller->loadModel('basic_page');
        } else {
            $Controller = new $name;
            $Controller->loadModel($name);
        }

        $Controller->init();

        // SUB -> If SUB exists as a method, call that method. If no sub,
        if (! empty($method)) {
            if (method_exists($Controller, $method)) {
                $Controller->{$method}();

                return true;
            }
        } else {
            if (method_exists($Controller, 'index')) {
                $Controller->index();

                return true;
            }
        }
        $Controller->Functions->notFound();

        return false;
    }

    /*
     * This functions checks whether the constructor should load a specific controller for a page,
     * or whether he should load the Basic_Page controller.
     */
    private function isBasicPage($name)
    {
        $Dbh = new DatabaseHandler();
        $Dbh->setTableName('kms_basic_pages');
        $Dbh->addRule('name', $name);
        $result = $Dbh->select();

        return  ! empty($result);
    }
}