from typing import List from selfprivacy_api.models.backup.snapshot import Snapshot from selfprivacy_api.utils.singleton_metaclass import SingletonMetaclass from selfprivacy_api.services.service import Service from selfprivacy_api.backup.providers.provider import AbstractBackupProvider from selfprivacy_api.backup.providers import get_provider from selfprivacy_api.graphql.queries.providers import BackupProvider class Backups(metaclass=SingletonMetaclass): """A singleton controller for backups""" provider: AbstractBackupProvider def __init__(self): self.lookup_provider() def lookup_provider(self): redis_provider = Backups.load_provider_redis() if redis_provider is not None: self.provider = redis_provider json_provider = Backups.load_provider_json() if json_provider is not None: self.provider = json_provider provider_class = get_provider(BackupProvider.MEMORY) self.provider = provider_class(login="", key="") @staticmethod def load_provider_redis() -> AbstractBackupProvider: pass @staticmethod def load_provider_json() -> AbstractBackupProvider: pass def back_up(self, service: Service): folder = service.get_location() repo_name = service.get_id() service.pre_backup() self.provider.backuper.start_backup(folder, repo_name) service.post_restore() def get_snapshots(self, service: Service) -> List[Snapshot]: repo_name = service.get_id() return self.provider.backuper.get_snapshots(repo_name)