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from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, UniqueConstraint
from sqlalchemy.orm import relationship
from sqlalchemy.sql import func
from app.core.database import Base
class Product(Base):
__tablename__ = "products"
id = Column(Integer, primary_key=True, index=True)
name = Column(String(255), nullable=False)
sku = Column(String(100), unique=True, nullable=False, index=True)
quantity_in_stock = Column(Integer, nullable=False, default=0)
created_at = Column(
DateTime(timezone=True), server_default=func.now(), nullable=False
)
updated_at = Column(
DateTime(timezone=True),
server_default=func.now(),
onupdate=func.now(),
nullable=False,
)
stock_movements = relationship(
"StockMovement", back_populates="product", cascade="all, delete-orphan"
)
class StockMovement(Base):
__tablename__ = "stock_movements"
id = Column(Integer, primary_key=True, index=True)
product_id = Column(
Integer,
ForeignKey("products.id", ondelete="CASCADE"),
nullable=False,
index=True,
)
order_id = Column(Integer, nullable=False, index=True)
movement_type = Column(String(50), nullable=False)
quantity_change = Column(Integer, nullable=False)
created_at = Column(
DateTime(timezone=True), server_default=func.now(), nullable=False
)
product = relationship("Product", back_populates="stock_movements")
class ProcessedEvent(Base):
__tablename__ = "processed_events"
id = Column(Integer, primary_key=True, index=True)
order_id = Column(Integer, unique=True, nullable=False, index=True)
processed_at = Column(
DateTime(timezone=True), server_default=func.now(), nullable=False
)
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