from datetime import UTC, datetime

from sqlalchemy.orm import Session

from packages.adapters.sqlalchemy_impl.models import PointsAccountModel
from packages.domain.points_account import PointsAccount


class SQLAlchemyPointsAccountRepository:
    def __init__(self, session: Session):
        self.session = session

    def create(self, account: PointsAccount) -> PointsAccount:
        model = PointsAccountModel(
            id=account.id,
            user_id=account.user_id,
            balance=account.balance,
            total_earned=account.total_earned,
            total_spent=account.total_spent,
            created_at=account.created_at,
            updated_at=account.updated_at,
        )
        self.session.add(model)
        self.session.commit()
        return account

    def get_by_user_id(self, user_id: str) -> PointsAccount | None:
        model = self.session.query(PointsAccountModel).filter(PointsAccountModel.user_id == user_id).first()
        if model is None:
            return None
        return self._to_domain(model)

    def update_balance(self, account: PointsAccount) -> PointsAccount:
        model = self.session.query(PointsAccountModel).filter(PointsAccountModel.id == account.id).first()
        if model is None:
            return account
        model.balance = account.balance
        model.total_earned = account.total_earned
        model.total_spent = account.total_spent
        model.updated_at = datetime.now(UTC)
        self.session.add(model)
        self.session.commit()
        return account

    @staticmethod
    def _to_domain(model: PointsAccountModel) -> PointsAccount:
        return PointsAccount(
            id=model.id,
            user_id=model.user_id,
            balance=model.balance,
            total_earned=model.total_earned,
            total_spent=model.total_spent,
            created_at=model.created_at,
            updated_at=model.updated_at,
        )