# File : app/documents/models.py
# Purpose : SQLAlchemy models for documents (no pgvector - chunks stored in ChromaDB)

from sqlalchemy import Column, String, Integer, DateTime, ForeignKey
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.sql import func
import uuid

from app.database.connection import Base


class Document(Base):
    __tablename__ = "documents"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    user_id = Column(UUID(as_uuid=True), ForeignKey("users.id"), nullable=False, index=True)
    filename = Column(String, nullable=False)
    file_type = Column(String, nullable=False)
    file_size = Column(Integer, nullable=False)
    total_chunks = Column(Integer, default=0)
    status = Column(String, default="processing")
    created_at = Column(DateTime(timezone=True), server_default=func.now())

    def __repr__(self):
        return f"<Document {self.filename}>"