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from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey
from sqlalchemy.sql import func
from sqlalchemy.orm import relationship
from database import Base


class User(Base):
    __tablename__ = "users"

    id            = Column(Integer, primary_key=True, index=True)
    email         = Column(String, unique=True, index=True, nullable=False)
    name          = Column(String, nullable=False)
    password_hash = Column(String, nullable=False)
    created_at    = Column(DateTime, server_default=func.now())

    projects      = relationship("Project", back_populates="owner")


class Project(Base):
    __tablename__ = "projects"

    id            = Column(Integer, primary_key=True, index=True)
    filename      = Column(String, nullable=False)
    file_id       = Column(String, unique=True, index=True, nullable=False)
    upload_path   = Column(String, nullable=False)
    layer_count   = Column(Integer, default=0)
    status        = Column(String, default="uploaded")
    processing_ms = Column(Integer, default=0)
    saved_state   = Column(Text, nullable=True)
    thumbnail_b64 = Column(Text, nullable=True)
    created_at    = Column(DateTime, server_default=func.now())
    updated_at    = Column(DateTime, server_default=func.now(), onupdate=func.now())
    user_id       = Column(Integer, ForeignKey("users.id"), nullable=False)

    owner         = relationship("User", back_populates="projects")