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

from app.domain.models.base import BaseModel
from app.settings import settings


class Mailing(BaseModel):
    __tablename__ = 'mailing'
    __table_args__ = {"schema": settings.SCHEMA}

    text = Column(String, nullable=False)
    title = Column(String, nullable=False)
    datetime = Column(DateTime, nullable=False, default=func.utcnow)

    user_id = Column(Integer, ForeignKey(f'{settings.SCHEMA}.users.id', ondelete='SET NULL'), nullable=True)

    user = relationship('User', back_populates='mailing')

    recipients = relationship('Recipient', back_populates='mailing', cascade="all, delete")
    mailing_options = relationship('MailingOption', back_populates='mailing', cascade="all, delete")