class.ilStorageContainersExistingObjective.php

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<?php declare(strict_types=1);

use ILIAS\ResourceStorage\StorageHandler\StorageHandlerFactory;
use ILIAS\Setup;
use ILIAS\Setup\Objective;

class ilStorageContainersExistingObjective extends Objective\DirectoryCreatedObjective
{
    protected $base_dir;

    protected $storage_handler_ids = [
        'fsv2'
    ];

    public function __construct(array $storage_handler_ids = null)
    {
        parent::__construct(StorageHandlerFactory::BASE_DIRECTORY);
        $this->storage_handler_ids = $storage_handler_ids ?? $this->storage_handler_ids;
        $this->base_dir = StorageHandlerFactory::BASE_DIRECTORY;
    }

    protected function buildStorageBasePath(Setup\Environment $environment) : string
    {
        $ini = $environment->getResource(Setup\Environment::RESOURCE_ILIAS_INI);
        $client_id = $environment->getResource(Setup\Environment::RESOURCE_CLIENT_ID);

        $storage_directory_full_path = $ini->readVariable('clients',
                'datadir') . '/' . $client_id . '/' . $this->base_dir;
        return $storage_directory_full_path;
    }

    public function getPreconditions(Setup\Environment $environment) : array
    {
        // case if it is a fresh ILIAS installation
        if ($environment->hasConfigFor("filesystem")) {
            $config = $environment->getConfigFor("filesystem");
            return [
                new \ilFileSystemDirectoriesCreatedObjective($config)
            ];
        }

        // case if ILIAS is already installed
        return [
            new \ilIniFilesLoadedObjective()
        ];
    }

    public function achieve(Setup\Environment $environment) : Setup\Environment
    {
        $base_path = $this->buildStorageBasePath($environment);
        $this->path = $base_path;
        $environment = parent::achieve($environment);

        foreach ($this->storage_handler_ids as $storage_handler_id) {
            $this->path = $base_path . '/' . $storage_handler_id;
            $environment = parent::achieve($environment);
        }
        return $environment;
    }

    public function isApplicable(Setup\Environment $environment) : bool
    {
        $base_path = $this->buildStorageBasePath($environment);
        $this->path = $base_path;
        if (parent::isApplicable($environment)) {
            return true;
        }

        foreach ($this->storage_handler_ids as $storage_handler_id) {
            $this->path = $base_path . '/' . $storage_handler_id;
            if (parent::isApplicable($environment)) {
                return true;
            }
        }
        return false;
    }

}