import uuid
from enum import StrEnum
from typing import TYPE_CHECKING

from sqlalchemy import BigInteger, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column, relationship

from src import domain

if TYPE_CHECKING:
    from . import ExternalChannel, creative, user


class TargetChannelStatus(StrEnum):
    ACTIVE = 'active'
    INACTIVE = 'inactive'
    ARCHIVED = 'archived'


class TargetChannel(domain.Base):
    telegram_id: Mapped[int] = mapped_column(BigInteger, unique=True, index=True)
    title: Mapped[str]
    username: Mapped[str | None] = mapped_column(index=True)
    status: Mapped[TargetChannelStatus]

    # Relationship with user
    user_id: Mapped[uuid.UUID] = mapped_column(ForeignKey('users.id'), index=True)
    user: Mapped['user.User'] = relationship(back_populates='target_channels')

    # M2M relationship with external channels
    external_channels: Mapped[list['ExternalChannel']] = relationship(
        secondary='target_channel_external_channels',
        back_populates='target_channels',
    )

    creatives: Mapped[list['creative.Creative']] = relationship(back_populates='target_channel')

    @property
    def is_active(self) -> bool:
        return self.status == domain.TargetChannelStatus.ACTIVE

    @is_active.setter
    def is_active(self, value: bool) -> None:
        self.status = domain.TargetChannelStatus.ACTIVE if value else domain.TargetChannelStatus.INACTIVE