ModuleManager.php

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<?php 

namespace Tools;

class ModuleManager
{
    private $context;

    private $modules = array();

    private static $installing = false;

    public function __construct(&$context)
    {
        $this->context = $context;
        $modulesRoot = $context->router->modulesPath;
        $modules = \Entity\Module::getActivated();
        $ids = array();
        foreach ($modules as $i)
        {
            $modulePath = "{$modulesRoot}{$i->directory}/main.php";
            if (file_exists($modulePath) && $this->loadModule($modulePath, $i))
            {
                $ids[] = $i->id;
            }
            else
            {
                $i->active = false;
                $i->save();
            }
        }
        $context->hookManager->loadHooks(\Entity\ModuleHook::getModules($ids));
    }

    private function loadModuleFile($path)
    {
        $mod = include_once($path);
        if (!$mod || !($mod instanceof \Tools\AModule))
            return false;
        $mod->setContext($this->context);
        return $mod;
    }

    private function loadModule($path, $module)
    {
        $mod = $this->loadModuleFile($path);
        if ($mod === false)
            return false;
        $mod->setEntity($module);
        $this->modules[] = $mod;
        return true;
    }

    public function install($modulename)
    {
        $entity = new \Entity\Module();
        $entity->name = $modulename;
        $entity->directory = $modulename;
        $entity->active = true;
        $module = $this->loadModuleFile($this->context->router->modulesPath.$modulename.'/main.php');
        if ($module === false)
            return false;
        $entity->name = $module->getName();
        $entity->description = $module->getDescription();
        $entity->save();
        $module->setEntity($entity);
        self::$installing = true;
        if ($module->install() == false)
        {
            self::$installing = false;
            $hooks = \Entity\ModuleHook::getModules($entity->id);
            foreach ($hooks as $i)
                $i->delete();
            $entity->delete();
            return false;
        }
        self::$installing = false;
        return $module;
    }

    /*
     * TODO revoir tout
     * @return array(AModule)
     * Will load every modules, and return them.
    **/
    public function listAvailableModules()
    {
        $modulesRoot = $context->router->modulesPath;
        $result = array();
        $modules = scandir($modulesRoot, SCANDIR_SORT_NONE);
        foreach ($modules as $i)
        {
            $path = $modulesRoot.$i;
            if ($i == '.' || $i == '..' || !is_dir($path))
                continue;
            $this->loadModule($path);
        }
    }

    public function getModuleFromId($id)
    {
        foreach ($this->modules as $i)
        {
            if ($i->entity->id == $id)
                return $i;
        }
        return FALSE;
    }

    public static function isInstalling()
    { return self::$installing; }

    public function __get($key)
    {
        switch ($key)
        {
            case "modules":
                return $this->modules; break;
        }
        if (substr($key, 0, 4) == "_id_")
            return $this->getModuleFromId((int) substr($key, 4));
        throw new \Exception("Cannot access attribute {$key}");
    }
}