using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using VRTK;
using XFramework;
using static VRTK.VRTK_SDKManager;

//加载VRTK预制件 提供开启和关闭接口 管理初始化网络同步逻辑
public class VRManager : IVRInput
{
    VRTK_SDKManager SDKManager;
    public Camera mainCamera;
    VRPersonSyncSender netSyncSendCtrl;
    //IVRInput leftInput;
    IVRInput rightInput;
    UnityAction<bool, VRTK_SDKManager.LoadedSetupChangeEventArgs> openEvent;//设备开启回调事件
    UnityAction<bool> shoutDownEvent;//设备关闭回调事件
    //指定VRTK预制件名称  并创建预制体 等待开始
    public VRManager(string vrtkPrefabName, Vector3 postion)
    {
        SDKManager = GameObject.Instantiate<GameObject>(Resources.Load<GameObject>(ResourcesManager.GetPath(vrtkPrefabName))).GetComponent<VRTK_SDKManager>();
        SDKManager.transform.position = postion;
        SDKManager.gameObject.AddComponent<VRControllerTooltipLocalizer>();
        SDKManager.LoadedSetupChanged += SDKManager_LoadedSetupChanged;
        VRTK_Logger.instance.throwExceptions = false;
        //leftInput = SDKManager.scriptAliasLeftController.GetComponent<IVRInput>();
        rightInput = SDKManager.scriptAliasRightController.GetComponent<IVRInput>();
        mainCamera = Camera.main;
    }

    //连接状态改变
    private void SDKManager_LoadedSetupChanged(VRTK_SDKManager sender, VRTK_SDKManager.LoadedSetupChangeEventArgs e)
    {
        if (string.IsNullOrEmpty(e.errorMessage))
        {
            openEvent?.Invoke(true, e);
            openEvent = null;
            shoutDownEvent?.Invoke(true);
            shoutDownEvent = null;

            if (GroupLearnHelper.isGroup)//组协同训练时 加入同步队列
            {
                StartNetSync();
            }
        }
        else
        {
            openEvent?.Invoke(false, e);
            openEvent = null;
            shoutDownEvent?.Invoke(false);
            shoutDownEvent = null;
        }
    }

    /// <summary>
    /// 尝试启动VR  启动结果由事件回馈
    /// </summary>
    public void OpenVR(UnityAction<bool, VRTK_SDKManager.LoadedSetupChangeEventArgs> openResult)
    {
        this.openEvent = openResult;
        SDKManager.TryLoadSDKSetupFromList();//加载VR
        if (mainCamera)
            mainCamera.GetComponent<AudioListener>().enabled = false;
    }

    public void ShoutDwonVR(UnityAction<bool> shoutdownResult)
    {
        this.shoutDownEvent = shoutdownResult;
        SDKManager.UnloadSDKSetup(true);//卸载VR
        if (mainCamera)
            mainCamera.GetComponent<AudioListener>().enabled = true;
        if (GroupLearnHelper.isGroup)//组协同训练时 退出同步队列
        {
            StopNetSync();
        }
    }

    /// <summary> 
    /// 注册连接状态变化事件 连接失败时回馈
    /// </summary>
    /// <param name="loadedSetupChange"></param>
    public void AddLoadedSetupChanged(LoadedSetupChangeEventHandler loadedSetupChange)
    {
        SDKManager.LoadedSetupChanged += loadedSetupChange;
    }

    /// <summary>
    /// 注销连接状态变化事件
    /// </summary>
    /// <param name="loadedSetupChange"></param>
    public void RemoveLoadedSetupChanged(LoadedSetupChangeEventHandler loadedSetupChange)
    {
        SDKManager.LoadedSetupChanged -= loadedSetupChange;
    }

    public void Destroy()
    {
        SDKManager.LoadedSetupChanged -= SDKManager_LoadedSetupChanged;
    }

    //启用交互操作
    public void SetInteractable(bool interactable)
    {
        //leftInput.SetInteractable(interactable);
        rightInput.SetInteractable(interactable);
    }

    //虚拟人物加入网络同步
    protected void StartNetSync()
    {
        if (netSyncSendCtrl == null)
            netSyncSendCtrl = SDKManager.transform.GetOrAddComponent<VRPersonSyncSender>();
        netSyncSendCtrl.JoinSendList();
    }

    //虚拟人物退出网络同步
    protected void StopNetSync()
    {
        netSyncSendCtrl?.ExitSendList();
    }

}