# download_manager.py


class DownloadManager:
    @staticmethod
    def is_downloaded(name):
        from models.models import DownloadedFile, db
        # 查询数据库以检查文件是否已下载
        file_record = DownloadedFile.query.filter_by(name=name).first()
        return file_record is not None and file_record.downloaded

    @staticmethod
    def record_download(name, path):
        from models.models import DownloadedFile, db
        # 记录文件下载到数据库
        if not DownloadManager.is_downloaded(name):
            new_file = DownloadedFile(name=name, path=path, downloaded=True)
            db.session.add(new_file)
            db.session.commit()