Core.php

<?php

class Core {
    public static $breadcrumbs = array(
        array("href" => "http://www.unl.edu", "text" => 'UNL'),
        array("href" => '/', "text" => "UNL Lockup Factory")
    );
    const ROOT = __DIR__ . '/..';
    public static $absolute_base_url = 'http://lockups.unl.edu/';

    public static $siteNotice = NULL;

    public static function callController($controller, $action, $params = NULL) {
        $controller_name = 'Controllers\\' . ucfirst($controller) . 'Controller';
        $action_name = $action . 'Action';
        # if that controller exists and it has that method, call it
        $controller_filename = __DIR__ . '/' . str_replace(array('_', '\\'), '/', $controller_name) . '.php';
        if (file_exists($controller_filename) && is_callable($controller_name.'::'.$action_name)) {
            $controller_output = call_user_func($controller_name.'::'.$action_name, $params);
            self::renderPage($controller_output);
        } else {
            # need to 404
            echo 'not a thing';
        }
    }

    public static function renderPage(Controllers\ControllerOutput $controllerOutput) {
        include __DIR__ . '/Views/main_template.php';
    }


    # redirect to a URL
    public static function redirect($url, $exit = TRUE) {
        header('Location: ' . $url);
        if (!defined('CLI') && FALSE !== $exit) {
            exit($exit);
        }
    }

    public static function notFound($message = 'That content could not be found.') {
        http_response_code(404);

        $context = new \stdClass;
        $context->message = $message;
        self::renderPage(\Controllers\Controller::renderView('not_found', $context));
        exit();
    }

    # redirect back to where the user came from
    public static function redirectBack($exit = TRUE) {
        header('Location: ' . $_SERVER['HTTP_REFERER']);
        if (!defined('CLI') && FALSE !== $exit) {
            exit($exit);
        }
    }

    # get flash notice information
    public static function getNotice()
    {
        if (isset($_SESSION['flash_notice'])) {
            $notice = $_SESSION['flash_notice'];
            unset($_SESSION['flash_notice']);
            return $notice;
        } else {
            return NULL;
        }
    }

    public static function getGenerateOutput()
    {
        if (isset($_SESSION['generate_output'])) {
            $notice = $_SESSION['generate_output'];
            unset($_SESSION['generate_output']);
            return $notice;
        } else {
            return NULL;
        }
    }
}