using Prism.Events;
using UIShare.UIViewModel;

namespace UIShare.PubEvent
{
    /// <summary>
    /// 子程序导航事件：运行时进入/退出子程序时发布，
    /// StepsManagerViewModel 订阅后自动切换显示。
    /// </summary>
    public class SubProgramNavigateEvent : PubSubEvent<SubProgramNavigatePayload>
    {
    }

    public class SubProgramNavigatePayload
    {
        /// <summary>目标台架的作用域标识</summary>
        public string Scope { get; set; } = "";

        /// <summary>Enter = 进入子程序，Exit = 退出回到上一级</summary>
        public NavigateAction Action { get; set; }

        /// <summary>进入时：子程序的 ProgramVM；退出时可为 null</summary>
        public ProgramVM? SubProgram { get; set; }

        /// <summary>子程序步骤的名称（用于面包屑显示）</summary>
        public string? StepName { get; set; }
    }

    public enum NavigateAction
    {
        Enter,
        Exit
    }
}