import hashlib
import typing as t
from dataclasses import dataclass

from unstructured.ingest.interfaces import BaseSourceConnector
from unstructured.ingest.logger import logger
from unstructured.ingest.runner.base_runner import Runner
from unstructured.ingest.runner.utils import update_download_dir_hash

if t.TYPE_CHECKING:
    from unstructured.ingest.connector.delta_table import SimpleDeltaTableConfig


@dataclass
class DeltaTableRunner(Runner):
    connector_config: "SimpleDeltaTableConfig"

    def update_read_config(self):
        hashed_dir_name = hashlib.sha256(
            str(self.connector_config.table_uri).encode("utf-8"),
        )
        self.read_config.download_dir = update_download_dir_hash(
            connector_name="delta_table",
            read_config=self.read_config,
            hashed_dir_name=hashed_dir_name,
            logger=logger,
        )

    def get_source_connector_cls(self) -> t.Type[BaseSourceConnector]:
        from unstructured.ingest.connector.delta_table import (
            DeltaTableSourceConnector,
        )

        return DeltaTableSourceConnector