import abc
from .metadata import AbstractMetadataEngine


class AbstractRepository(abc.ABC):
    metadata_engine = AbstractMetadataEngine

    @abc.abstractmethod
    def schemas():
        """ List schemas """
        raise NotImplementedError

    @abc.abstractmethod
    def tables(schema):
        """ List table in schema"""
        raise NotImplementedError

    @abc.abstractmethod
    def info(self, path):
        """ Get infos about a file"""
        raise NotImplementedError

    @abc.abstractmethod
    def read(self, path):
        """ Get content of a file"""
        raise NotImplementedError

    @abc.abstractmethod
    def write(self, path, content):
        """ Write content into the file"""
        raise NotImplementedError

    @abc.abstractmethod
    def delete(self, path):
        """ Delete the file """
        raise NotImplementedError