ciclos

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from sqlalchemy import Column, Integer, DateTime, Numeric, ForeignKey
from core.database import Base
from datetime import datetime as dt

class Balance(Base):
    __tablename__ = "balances"

    id = Column(Integer, primary_key=True)
    value = Column(Numeric(10, 2), default=0.0, nullable=False)
    reserved = Column(Numeric(10, 2), default=0.0, nullable=False)
    product_id = Column(Integer, ForeignKey('products.id'), nullable=False)

    created_at = Column(DateTime, nullable=False)
    updated_at = Column(DateTime, nullable=False)

    def __init__(self, value, reserved, product_id):
        self.value = value
        self.reserved = reserved
        self.product_id = product_id

    def rollback_reserved(self):
        self.value += self.reserved
        self.reserved = 0.0

        session.commit()

    def to_json(self):
        return {
            "reserved": float(self.reserved),
            "value": float(self.value),
            "updated_at": self.updated_at.__str__()
        }