from datetime import datetime


from sqlalchemy import Column, Integer, String, ForeignKey, Text
from sqlalchemy.orm import relationship
from db import Base

class ActionLog(Base):
    __tablename__ = 'action_logs'
    id = Column(Integer, primary_key=True)
    admin_id = Column(Integer)
    action = Column(String)
    details = Column(String)
    timestamp = Column(String, default=lambda: datetime.utcnow().isoformat())
    
class Admin(Base):
    __tablename__ = 'admins'
    id = Column(Integer, primary_key=True)
    tg_id = Column(Integer, nullable=False)
    channel_id = Column(Integer, ForeignKey('channels.id'), nullable=True)
    inviter_id = Column(Integer, nullable=True)
    invite_token = Column(String, nullable=True, unique=True)

class Channel(Base):
    __tablename__ = 'channels'
    id = Column(Integer, primary_key=True)
    name = Column(String)
    link = Column(String)
    admin_id = Column(Integer, ForeignKey('admins.id'))
    buttons = relationship('Button', back_populates='channel')

class Group(Base):
    __tablename__ = 'groups'
    id = Column(Integer, primary_key=True)
    name = Column(String, nullable=False)
    link = Column(String, nullable=False)
    admin_id = Column(Integer, ForeignKey('admins.id'))
    buttons = relationship('Button', back_populates='group')

class Button(Base):
    __tablename__ = 'buttons'
    id = Column(Integer, primary_key=True)
    name = Column(String, nullable=False)
    url = Column(String, nullable=False)
    channel_id = Column(Integer, ForeignKey('channels.id'), nullable=True)
    group_id = Column(Integer, ForeignKey('groups.id'), nullable=True)
    channel = relationship('Channel', back_populates='buttons')
    group = relationship('Group', back_populates='buttons')