from enum import Enum as PyEnum

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

from ._base import Base


class ContentDeliveryFrequency(PyEnum):
    DAILY = "DAILY"
    WEEKLY = "WEEKLY"
    BI_WEEKLY = "BI_WEEKLY"
    MONTHLY = "MONTHLY"


class User(Base):
    __tablename__ = "users"

    id = Column(Integer, primary_key=True, autoincrement=True, nullable=False)
    name = Column(String, nullable=False)
    content_delivery_frequency = Column(
        Enum(ContentDeliveryFrequency),
        nullable=False,
        default=ContentDeliveryFrequency.WEEKLY,
    )
    slack_id = Column(String, nullable=True)
    slack_team_id = Column(
        Integer,
        ForeignKey("slack_teams.id"),
        nullable=True,
    )
    email_id = Column(String, nullable=False, unique=True)
    last_message_sent_at = Column(DateTime, nullable=True)
    next_content_delivery_date = Column(DateTime, nullable=True)
    created_at = Column(DateTime, nullable=False, default=func.now())

    slack_team = relationship("SlackTeam", back_populates="users")
    files = relationship("File", back_populates="user", cascade="all, delete-orphan")
    personalized_contents = relationship(
        "PersonalizedContent", back_populates="user", cascade="all, delete-orphan"
    )

    def __repr__(self):
        return f"<User id={self.id}, name={self.name}, email_id={self.email_id}>"

    def to_dict(self):
        return {
            "id": self.id,
            "name": self.name,
            "content_delivery_frequency": self.content_delivery_frequency,
            "slack_id": self.slack_id,
            "slack_team_id": self.slack_team_id,
            "email_id": self.email_id,
            "last_message_sent_at": self.last_message_sent_at,
            "next_content_delivery_date": self.next_content_delivery_date,
            "created_at": self.created_at,
        }