namespace AlicizaX
{
    public interface IProcedure
    {
        IProcedureService ProcedureService { get; set; }
        void Init();
        void Enter();
        void Leave();
        void Update();
        void Destroy();
    }

    /// <summary>
    /// 流程基类 - 使用模板方法模式定义流程生命周期
    /// </summary>
    public abstract class ProcedureBase : IProcedure
    {
        public IProcedureService ProcedureService { get; set; }

        void IProcedure.Init()
        {
            OnInit();
        }

        void IProcedure.Enter()
        {
            OnEnter();
        }

        void IProcedure.Leave()
        {
            OnLeave();
        }

        void IProcedure.Update()
        {
            OnUpdate();
        }

        void IProcedure.Destroy()
        {
            OnDestroy();
        }


        protected virtual void OnInit()
        {
        }

        protected virtual void OnEnter()
        {
        }

        protected virtual void OnLeave()
        {
        }

        protected virtual void OnUpdate()
        {
        }

        protected virtual void OnDestroy()
        {
        }


        protected internal void SwitchProcedure<T>() where T : ProcedureBase
        {
            AppServices.Require<IProcedureService>().SwitchProcedure<T>();
        }
    }
}