<?php

abstract class BaseState implements IReservationState
{
    protected $context;
    protected static $currentState;

    public function getStateId()
    {
        return static::$currentState;
    }

    public function __construct(Reservation $context)
    {
        $this->context = $context;
    }

    public function startWork() {
        throw new \Exception("Unsupportable operation");
    }

    public function cancel() {
        throw new \Exception("Unsupportable operation");
    }

    public function sell() {
        throw new \Exception("Unsupportable operation");
    }

    public function remove() {
        throw new \Exception("Unsupportable operation");
    }
}