designPattern/DesignPattern/FSM/States/IdleState.cs

using FSM.Machines;
using FSM.Recipes;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FSM.States
{
    class IdleState : IEquipmentState
    {
        private Recipe _currentRecipe;

        public void Enter()
        {
            Console.WriteLine("Entering IdleState");
        }

        public void Exit()
        {
            Console.WriteLine("Exiting IdleState");
        }

        public void SetRecipe(Recipe recipe)
        {
            _currentRecipe = recipe;
            Console.WriteLine(string.Format("Recipe {0} set in IdleState", _currentRecipe.Name));
        }

        public bool HandleEvent(EquipmentEvent equipmentEvent, Machines.EquipmentStateMachine machine)
        {
            switch (equipmentEvent)
            {
                case EquipmentEvent.Start:
                    if (_currentRecipe != null)
                    {
                        machine.SetState(new RunningState(_currentRecipe));
                        return true;
                    }
                    Console.WriteLine("No recipe set. Unable to start.");
                    return false;
                case EquipmentEvent.EmergencyStop:
                    machine.SetState(new EmergencyStoppedState());
                    return true;
                default:
                    return false;
            }
        }
    }
}