from sqlalchemy import Column, Integer, ForeignKey, DateTime, String, Boolean
from sqlalchemy.sql import func
from sqlalchemy.orm import relationship

from app.domain.models import Base


class TaskAnswer(Base):
    __tablename__ = 'task_answers'

    id = Column(Integer, primary_key=True, autoincrement=True)
    answer_date = Column(DateTime, nullable=False, default=func.utcnow)
    text = Column(String, nullable=False)
    is_current = Column(Boolean, default=None)
    comment = Column(String)

    user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
    task_id = Column(Integer, ForeignKey('step_tasks.id'), nullable=False)

    user = relationship('User', back_populates='task_answers')
    task = relationship('StepTask', back_populates='answers')

    files = relationship('AnswerFile', back_populates='answer')