BookStack/app/Exports/Import.php

<?php

namespace BookStack\Exports;

use Carbon\Carbon;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

/**
 * @property string $path
 * @property string $name
 * @property int $size - ZIP size in bytes
 * @property int $book_count
 * @property int $chapter_count
 * @property int $page_count
 * @property int $created_by
 * @property Carbon $created_at
 * @property Carbon $updated_at
 */
class Import extends Model
{
    use HasFactory;

    public const TYPE_BOOK = 'book';
    public const TYPE_CHAPTER = 'chapter';
    public const TYPE_PAGE = 'page';

    /**
     * Get the type (model) that this import is intended to be.
     */
    public function getType(): string
    {
        if ($this->book_count === 1) {
            return self::TYPE_BOOK;
        } elseif ($this->chapter_count === 1) {
            return self::TYPE_CHAPTER;
        }

        return self::TYPE_PAGE;
    }
}