"""Stock location model for equipment storage locations."""

import uuid
from datetime import datetime

from sqlalchemy import String, DateTime, ForeignKey, func, Boolean
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.db.base import Base


class StockLocation(Base):
    """Represents a physical storage location for equipment."""

    __tablename__ = "stock_locations"

    id: Mapped[str] = mapped_column(
        String(36), primary_key=True, default=lambda: str(uuid.uuid4())
    )
    account_id: Mapped[str] = mapped_column(
        String(36), ForeignKey("accounts.id", ondelete="CASCADE"), nullable=False
    )
    name: Mapped[str] = mapped_column(String(255), nullable=False)
    address: Mapped[str | None] = mapped_column(String(500), nullable=True)
    is_default: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)

    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        server_default=func.now(),
        onupdate=func.now(),
        nullable=False,
    )

    # Relationships
    account: Mapped["Account"] = relationship("Account", back_populates="stock_locations")
    equipment_items: Mapped[list["Equipment"]] = relationship(
        "Equipment", back_populates="location"
    )
    equipment_groups: Mapped[list["EquipmentGroup"]] = relationship(
        "EquipmentGroup", back_populates="default_location"
    )

    def __repr__(self) -> str:
        return f"<StockLocation {self.name}>"