#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from typing import Self, Any
from time import time as timestamp

class SessionModel:

    def __init__(self:Self, id:str) -> None:
        self.id:str = id
        self.date_from:float = timestamp()
        self.date_last:float = timestamp()
        self.variables:dict[str, Any|None] = {}

    def set(self:Self, key:str, value:Any|None) -> None:
        self.date_last = timestamp()
        self.variables[key] = value

    def get(self:Self, key:str, default:Any|None = None) -> Any|None:
        self.date_last = timestamp()
        return self.variables.get(key, default)