<?php
namespace App\CMS\Helpers;

use App\Models\FileManager\Directory;
use App\Models\FileManager\File;

class RootDirectory
{
    protected static $directory;

    /**
     * Create root directory
     *
     * @return Directory
     */
    protected static function create()
    {
        $directory = new Directory();
        $directory->name = 'Root';
        $directory->is_root = true;
        $directory->save();

        Directory::whereNull('parent_id')
                 ->where('is_root', false)
                 ->update(['parent_id' => $directory->id]);

        File::where('directory_id', null)
            ->update(['directory_id' => $directory->id]);

        return $directory;
    }

    /**
     * Get root directory
     *
     * @return Directory
     */
    public static function get()
    {
        self::$directory = Directory::where('is_root', true)
                                    ->first();

        if (is_null(self::$directory)) {
            self::$directory = self::create();
        }

        return self::$directory;
    }
}