from utils.db.db import DbConnector
from models.model_mtr_network_nodes import MtrAdditionalNodesModel

from sqlalchemy import select


class MtrAdditionalNodeQuery:
    def __init__(self):
        db_con = DbConnector("spirent_mysql")
        self.db = db_con.get_db()

    async def get_all_nodes(self) -> list:
        """
        Retrieve all entries from the mtr_network_nodes database table.
        """
        async with self.db() as session:
            return (await session.execute(select(MtrAdditionalNodesModel))).scalars().all()


    async def get_all_nodes_for_testing(self) -> list:
        """
        Retrieve all entries from the mtr_network_nodes database table, exclude rows used for storing parameters for
        testing TAS servers.
        """

        async with (self.db() as session):
            stmt = select(MtrAdditionalNodesModel) \
                .where(MtrAdditionalNodesModel.test_servers == False) \
                .where(MtrAdditionalNodesModel.enabled == True)
            return (await session.execute(stmt)).scalars().all()

    async def get_node_by_id(self, node_id: int) -> MtrAdditionalNodesModel:
        async with self.db() as session:
            stmt = select(MtrAdditionalNodesModel).where(MtrAdditionalNodesModel.id == node_id)
            return (await session.execute(stmt)).scalars().first()