from enum import Enum as Enumeration

from sqlalchemy import Column, ForeignKey, String
from sqlalchemy.orm import relationship

from services.db import Base


class InviteStatus(Enumeration):
    PENDING = 'PENDING'
    ACCEPTED = 'ACCEPTED'
    REJECTED = 'REJECTED'


class Invite(Base):
    __tablename__ = 'invite'

    inviter_id = Column(ForeignKey('author.id'), primary_key=True)
    author_id = Column(ForeignKey('author.id'), primary_key=True)
    shout_id = Column(ForeignKey('shout.id'), primary_key=True)
    status = Column(String, default=InviteStatus.PENDING.value)

    inviter = relationship('author', foreign_keys=[inviter_id])
    author = relationship('author', foreign_keys=[author_id])
    shout = relationship('shout')