<?php

class Autoload {
    protected static $instance;
    private $basedir;

    public static function get()
    {
	if (is_null(static::$instance))
	    static::$instance = new static();

	return static::$instance;
    }

    private function __construct()
    {
	$this->basedir = dirname(__DIR__);
    }

    public function loadClassModule($class)
    {
	$module = false;

	if (class_exists('Hallinta', false)) {
	    $module = Hallinta::instance()->module();
	} elseif (!empty($_REQUEST['source']) && strpos($_REQUEST['source'], '__')) {
	    $name = sanitise_filename($_REQUEST['source']);
	    list($module,$fname) = explode('__', $name);
	}

	if ($module) {
	    $path = sprintf("%s/%s/%s/class/%s.class.php", $this->basedir,
			    HALLINTA_MODULEDIR, $module, strtolower($class));
	    if (file_exists($path))
		require_once($path);
	}
    }

    public function loadClass($class)
    {
	$path = sprintf("%s/class/%s.class.php", $this->basedir,
			strtolower($class));
	if (file_exists($path))
	    require_once($path);
    }
}

spl_autoload_register([Autoload::get(), 'loadClassModule']);
spl_autoload_register([Autoload::get(), 'loadClass']);