from datetime import datetime

from sqlalchemy import PrimaryKeyConstraint, ForeignKey, Integer, String, DateTime
from sqlalchemy.orm import relationship, Mapped, mapped_column

from utilities.database import db # Импортируем db из backend_flask.py

class Users(db.Model):
    chat_id = db.Column(db.Integer, primary_key=True)
    telegram_id = db.Column(db.String(80), unique=True, nullable=False)
    user_email = db.Column(db.String(255), unique=True, nullable=False)
    is_blocked = db.Column(db.Boolean, default=False)
    subscriptions = relationship("Subscriptions", backref="user", cascade="all, delete-orphan") # Добавлено cascade

class Regions(db.Model):
    region_id = db.Column(db.Integer, primary_key=True)
    region_name = db.Column(db.String(255), nullable=False)
    active = db.Column(db.Boolean, default=True)

class Subscriptions(db.Model):
    region_id = db.Column(db.Integer, nullable=False)
    active = db.Column(db.Boolean, default=True)
    skip = db.Column(db.Boolean, default=False)
    disaster_only = db.Column(db.Boolean, default=False)
    chat_id = db.Column(db.Integer, ForeignKey('users.chat_id', ondelete='CASCADE'), nullable=False) #Добавляем внешний ключ с ondelete
    __table_args__ = (
        PrimaryKeyConstraint('chat_id', 'region_id'),
    )

class UILogs(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    chat_id = db.Column(db.Integer, nullable=False)
    actions = db.Column(db.String(500), nullable=False)
    timestamp = db.Column(db.DateTime, default=db.func.current_timestamp())

class UserEvents(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    chat_id = db.Column(db.Integer, nullable=False)
    telegram_id = db.Column(db.String(80), nullable=False)
    action = db.Column(db.String(500), nullable=False)
    timestamp = db.Column(db.DateTime, default=db.func.current_timestamp())

class Systems(db.Model):
    __tablename__ = 'systems'
    system_id = db.Column(db.String(255), primary_key=True)
    system_name = db.Column(db.String(255), nullable=False)
    name = db.Column(db.String(255), nullable=False)

    def __repr__(self):
        return f'<System {self.system_id}: {self.system_name} {self.name}>'

class WebActionLog(db.Model):
    __tablename__ = 'web_action_logs'

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    ldap_user_id: Mapped[str] = mapped_column(String(255), nullable=False)
    username: Mapped[str | None] = mapped_column(String(255))
    timestamp: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
    action: Mapped[str] = mapped_column(String(255), nullable=False)
    details: Mapped[str | None] = mapped_column(String(1024))

    def __repr__(self):
        return f"<WebActionLog(ldap_user_id='{self.ldap_user_id}', username='{self.username}', action='{self.action}', timestamp='{self.timestamp}')>"