"""Customer model."""

import uuid
from datetime import datetime

from sqlalchemy import String, DateTime
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.database import Base


class Customer(Base):
    """Customer model for storing customer information."""

    __tablename__ = "customers"

    id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
    )
    email: Mapped[str] = mapped_column(String(255), unique=True, nullable=False, index=True)
    external_id: Mapped[str | None] = mapped_column(String(255), nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)

    # Relationships
    carts: Mapped[list["Cart"]] = relationship("Cart", back_populates="customer")
    orders: Mapped[list["Order"]] = relationship("Order", back_populates="customer")