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from __future__ import annotations

from typing import TYPE_CHECKING, Sequence

from airflow.providers.arangodb.hooks.arangodb import ArangoDBHook
from airflow.sensors.base import BaseSensorOperator

if TYPE_CHECKING:
    from airflow.utils.context import Context


class AQLSensor(BaseSensorOperator):
    """
    Checks for the existence of a document which matches the given query in ArangoDB.

    :param collection: Target DB collection.
    :param query: The query to poke, or you can provide .sql file having the query
    :param arangodb_conn_id: The :ref:`ArangoDB connection id <howto/connection:arangodb>` to use
        when connecting to ArangoDB.
    :param arangodb_db: Target ArangoDB name.
    """

    template_fields: Sequence[str] = ("query",)
    template_ext: Sequence[str] = (".sql",)
    template_fields_renderers = {"query": "sql"}

    def __init__(self, *, query: str, arangodb_conn_id: str = "arangodb_default", **kwargs) -> None:
        super().__init__(**kwargs)
        self.arangodb_conn_id = arangodb_conn_id
        self.query = query

    def poke(self, context: Context) -> bool:
        self.log.info("Sensor running the following query: %s", self.query)
        hook = ArangoDBHook(self.arangodb_conn_id)
        records = hook.query(self.query, count=True).count()
        self.log.info("Total records found: %d", records)
        return 0 != records
