using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class NavPathController : MonoBehaviour
{
    public List<GameObject>     pathObjects     = new List<GameObject>();
    public List<string>         pathSteps       = new List<string>();

    private int GetCurrentStep()
    {
        return pathSteps.IndexOf(GameManager.ProcessMgr.d_Scheme.CurrentProcess.CurrentSubProcess.CurrentSubProcessStep.subProcessStepName);
    }

    // Start is called before the first frame update
    void Start()
    {
        // 初始化时隐藏所有箭头
        foreach (var obj in pathObjects)
        {
            if (obj != null)
            {
                obj.SetActive(false);
            }
        }

        // 根据当前步骤显示对应的箭头（如果有的话）
        UpdateArrowVisibility();
    }

    public void HideAllArrows()
    {
        // 隐藏所有箭头
        foreach (var obj in pathObjects)
        {
            if (obj != null)
            {
                obj.SetActive(false);
            }
        }
    }

    // Update is called once per frame
    void Update()
    {
        if (GameManager.RunModelMgr.ModeType == E_ModeType.Study)
        {
            // 检查当前步骤是否改变，并更新箭头显示
            int currentStep = GetCurrentStep();
            if (currentStep > 0 && (currentStep - 1) < pathObjects.Count)
            {
                HideAllArrows();

                // 显示当前步骤对应的箭头
                pathObjects[currentStep - 1].SetActive(true);
            }
            else
            { 
                HideAllArrows();
            }
        }
    }

    // 一个单独的方法用于更新箭头的可见性，可以在其他地方调用
    private void UpdateArrowVisibility()
    {
        if (GameManager.RunModelMgr.ModeType == E_ModeType.Study)
        {
            int currentStep = GetCurrentStep();
            if (currentStep > 0 && (currentStep - 1) < pathObjects.Count)
            {
                HideAllArrows();

                // 显示当前步骤对应的箭头
                pathObjects[currentStep - 1].SetActive(true);
            }
            else
            {
                HideAllArrows();
            }
        }
    }
}