"""SQLAlchemy models for IFC building elements."""

import uuid

from sqlalchemy import Column, Float, ForeignKey, String, Text
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import relationship

from app.models.database import Base


class Project(Base):
    """An uploaded IFC project / building model."""

    __tablename__ = "projects"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    name = Column(String(255), nullable=False)
    filename = Column(String(255), nullable=False)
    description = Column(Text, default="")
    ifc_schema = Column(String(50), default="")

    elements = relationship("Element", back_populates="project", cascade="all, delete-orphan")


class Element(Base):
    """A single IFC building element (wall, door, slab, etc.)."""

    __tablename__ = "elements"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    project_id = Column(UUID(as_uuid=True), ForeignKey("projects.id"), nullable=False)
    global_id = Column(String(64), nullable=False, index=True)
    ifc_type = Column(String(100), nullable=False, index=True)
    name = Column(String(255), default="")
    description = Column(Text, default="")
    storey = Column(String(255), default="")

    project = relationship("Project", back_populates="elements")
    properties = relationship("Property", back_populates="element", cascade="all, delete-orphan")


class Property(Base):
    """A property (key-value pair) attached to an IFC element."""

    __tablename__ = "properties"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    element_id = Column(UUID(as_uuid=True), ForeignKey("elements.id"), nullable=False)
    pset_name = Column(String(255), default="")
    name = Column(String(255), nullable=False)
    value = Column(Text, default="")

    element = relationship("Element", back_populates="properties")