<?php

spl_autoload_register('autoload');
function autoload($className)
{
    //one of the global classes?
    if (file_exists(ROOT . DS . 'inc'. DS. 'classes' . DS . $className . '.class.php'))
        require_once(ROOT . DS . 'inc'. DS. 'classes' . DS . $className . '.class.php');
    else if (file_exists(ROOT . DS . 'models' . DS . $className . '.model.php'))
        require_once(ROOT . DS . 'models' . DS . $className . '.model.php');
    else if (file_exists(ROOT . DS . 'pages' . DS . strtolower($className) . DS . 'controller.php'))
        require_once(ROOT . DS . 'pages' . DS . strtolower($className) . DS . 'controller.php');
}

function includeManagement()
{
    require_once(ROOT.DS.'inc'.DS.'helpers.php');
    require_once(ROOT.DS.'inc'.DS.'config.inc.php');

    //settings from config
    if(defined('DEV') && DEV===true)
        ini_set("display_errors", 1);
    else ini_set("display_errors", 0);

    if(file_exists(ROOT.DS.'inc'.DS.'vendor'.DS.'autoload.php'))
        require_once(ROOT.DS.'inc'.DS.'vendor'.DS.'autoload.php');

    //DB
    if(defined('REDIS_SERVER') && REDIS_SERVER !='')
    {
        $redis = new Redis();
        try{
            $redis->connect(REDIS_SERVER, REDIS_PORT);
            if (defined('REDIS_PASS') && REDIS_PASS)
                $redis->auth(REDIS_PASS);
            if (defined('REDIS_PREFIX') && REDIS_PREFIX)
                $redis->setOption(Redis::OPT_PREFIX, REDIS_PREFIX);
            if (defined('REDIS_DB') && REDIS_DB)
                $redis->select(REDIS_DB);
            $GLOBALS['redis'] = $redis;
        }
        catch (Exception $e) {
            $GLOBALS['redis'] = false;
        }        
    }
    else
        $GLOBALS['redis'] = false;
}

function callHook($url)
{
    $queryString = array();

    if (!$url[0]) {
        $component = 'home';
        $action = 'index';
    } else {
        $urlArray = $url;
        $component = $urlArray[0];
        array_shift($urlArray);
        $params = $urlArray;
        if (isset($urlArray[0])) {
            $action = $urlArray[0];
            array_shift($urlArray);
        } else
            $action = 'index'; // Default Action
        $queryString = $urlArray;
    }


    if (!file_exists(ROOT . DS . 'pages' . DS . $component . DS . 'controller.php')) {
        $component = 'err';
        $action = 'notfound';
        $queryString = array($url);
    }

    $componentName = ucfirst($component);

    $dispatch = new $componentName($component, $action, false);

    if (!$dispatch->maySeeThisPage()) {
        $componentName = 'err';
        $action = 'notallowed';
        $dispatch = new $componentName('err', $action, true);
    } else
        $dispatch = new $componentName($component, $action, true, $queryString);

    if (method_exists($componentName, $action))
        $response = call_user_func_array(array($dispatch, $action), $queryString);
    else if (method_exists($componentName, 'catchAll'))
        $response = call_user_func_array(array($dispatch, 'catchAll'), array($params));
    else
    {
        $dispatch = new Err('err', 'notfound', false);
        $response = call_user_func_array(array($dispatch, 'notfound'), array($params));
    }

    if(is_string($response))
        return $response;
    else
        return $dispatch->renderPagecontent();
}

function getMenu()
{
    //first let's find all possible menu items
    $arr = array();
    if ($handle = opendir(ROOT . DS . 'pages')) {
        while (false !== ($file = readdir($handle))) {
            if (file_exists(ROOT . DS . 'pages' . DS . $file.DS.'controller.php') && class_exists($file)) {
                
                $instance = new $file($file, 'index', false);
                $instance->setMenu();
                $instance->setSubmenu();

                if($instance->maySeeThisPage()===true)
                {
                    $menu_text = $instance->menu_text;
                    $menu_priority = $instance->menu_priority;

                    if($menu_text)
                    {
                        while($arr[$menu_priority])
                            $menu_priority++;
                        $arr[$menu_priority] = array('text'=>$menu_text,'image'=>$instance->menu_image, 'url'=>$file,'menu_classes'=>$instance->menu_classes,'submenu'=>$instance->submenu);
                    }
                }
            }
        }
        closedir($handle);
    }

    //sort the menu
    ksort($arr);

    $arr = array_values($arr);

    return $arr;
}