from sqlalchemy import Column, String, Integer, Float, Text, ForeignKey, Table
from sqlalchemy.orm import relationship

from app.models.base import Base

# Association table for the many-to-many relationship between Product and Category
product_category = Table(
    "product_category",
    Base.metadata,
    Column("product_id", Integer, ForeignKey("product.id"), primary_key=True),
    Column("category_id", Integer, ForeignKey("category.id"), primary_key=True),
)


class Product(Base):
    """Model for anime merchandise products."""

    name = Column(String(255), nullable=False, index=True)
    description = Column(Text, nullable=True)
    price = Column(Float, nullable=False)
    stock = Column(Integer, default=0, nullable=False)
    image_url = Column(String(255), nullable=True)
    anime_title = Column(String(255), nullable=True, index=True)
    character_name = Column(String(255), nullable=True, index=True)

    # Relationships
    categories = relationship(
        "Category", secondary=product_category, back_populates="products"
    )

    def __repr__(self):
        return f"<Product {self.name}>"