from sqlalchemy import Column, String, Integer, ForeignKey
from sqlalchemy.orm import relationship
from sqlalchemy.sql import func
from app.api.db.base_class import Base
import uuid

class Tree(Base):
    __tablename__ = "trees"

    id = Column(Integer, primary_key=True, index=True)
    name = Column(String, nullable=False)
    species = Column(String, nullable=False)
    height = Column(Integer, nullable=False)
    diameter = Column(Integer, nullable=False)
    location_id = Column(Integer, ForeignKey("locations.id"), nullable=False)

    location = relationship("Location", back_populates="trees")

    created_at = Column(DateTime, default=func.now())
    updated_at = Column(DateTime, default=func.now(), onupdate=func.now())