from sqlalchemy import Column, String, DateTime, Text
from datetime import datetime
import uuid
from ..core.database import Base

class FileStatus(str):
    NOT_STARTED = "not_started"
    PROCESSING = "processing"
    SUCCESS = "success"
    FAILED = "failed"

class File(Base):
    __tablename__ = "files"

    id = Column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    filename = Column(String(255), nullable=False)
    original_path = Column(String(255), nullable=False)
    processed_path = Column(String(255))
    status = Column(String(20), nullable=False, default=FileStatus.NOT_STARTED)
    error_message = Column(Text)
    created_at = Column(DateTime, nullable=False, default=datetime.utcnow)
    updated_at = Column(DateTime, nullable=False, default=datetime.utcnow, onupdate=datetime.utcnow)