from typing import Optional
from sqlalchemy import select
from db.db_connection import async_session
from db.models.ch_experimentdb_experiment_data_model import ChExperimentDBExperimentData


class ChExperimentDBExperimentDataRepository:
    @staticmethod
    async def get_all() -> Optional[list[ChExperimentDBExperimentData]]:
        async with async_session() as session:
            result = await session.execute(select(ChExperimentDBExperimentData))
            return result.scalars().all()


    @staticmethod
    async def get_by_id(id_: int) -> Optional[ChExperimentDBExperimentData]:
        async with async_session() as session:
            result = session.get(ChExperimentDBExperimentData, id_)
            return result


    @staticmethod
    async def create(volume: float,
                     nitrogen_oxide_emission: float,
                     temperature: float,
                     co_fraction: float,
                     co2_fraction: float,
                     x: float,
                     y: float,
                     z: float,
                     file_id: str):
        new_data = ChExperimentDBExperimentData(
            volume=volume,
            nitrogen_oxide_emission=nitrogen_oxide_emission,
            temperature=temperature,
            co_fraction=co_fraction,
            co2_fraction=co2_fraction,
            x=x,
            y=y,
            z=z,
            file_id=file_id
        )
        async with async_session() as session:
            session.add(new_data)
            await session.commit()