import json
from typing import ClassVar, Dict

from services.everest.api.gateway.transaction import EverestAddTransactionRequest
from services.external_api.client import ClientBase


class EverestGatewayClient(ClientBase):
    """
    Base class to GatewayClient classes.
    """

    prefix: ClassVar[str] = "/gateway"

    async def add_transaction_request(
        self, add_tx_request: EverestAddTransactionRequest
    ) -> Dict[str, str]:
        raw_response = await self._send_request(
            send_method="POST", uri="/add_transaction", data=add_tx_request.dumps()
        )
        return json.loads(raw_response)

    async def get_first_unused_tx_id(self) -> int:
        response = await self._send_request(send_method="GET", uri="/get_first_unused_tx_id")
        return json.loads(response)
