using EasyInject.Attributes;
using NUnit.Framework;
using System.Collections.Generic;
using UnityEngine;

/// <summary>
/// 监听处理组件
/// </summary>
[GameObjectBean]
public sealed class EventCompent : MonoBehaviour
{
    private float lastClickTime = 0f;
    private const float DOUBLE_CLICK_INTERVAL = 0.5f;
    public delegate void MouseClickEvent();
    public event MouseClickEvent MouseClickEvents;
    public event MouseClickEvent MouseDoubleClickEvents;

    private void Start()
    {
        List<IMouseClick> mouseClicks = ApplicationBoot.Instance.GetBeans<IMouseClick>();
        foreach (IMouseClick click in mouseClicks)
        {
            MouseClickEvents += click.MouseSingleClick;
            MouseDoubleClickEvents += click.MouseDoubleClick;
        }
    }
    private void Update()
    {
        GlobalMouseRayHandle();
    }

  
    /// <summary>
    /// 全局射线点击监听
    /// </summary>
    private void GlobalMouseRayHandle()
    {

        if (Input.GetMouseButtonDown(0))
        {
            CheckDoubleClick();
        }
        
    }

    void CheckDoubleClick()
    {
        // 双击时执行的操作（如创建物体）
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit hit;
        if (Physics.Raycast(ray, out hit))
        {
            float currentTime = Time.time;
            if (currentTime - lastClickTime <= DOUBLE_CLICK_INTERVAL)
            {
                // 双击事件
                OnDoubleClick(hit);
                return;
            }
            else
            {
                // 单击事件
                OnSingleClick(hit);
            }
            lastClickTime = currentTime;
        }
    }

    private void OnDoubleClick(RaycastHit hit)
    {
        GameObject clickTarget = hit.collider.gameObject;
        MonoBehaviour[] monoBehaviours = clickTarget.GetComponents<MonoBehaviour>();
        if(monoBehaviours == null)
        {
            return;
        }
        if ( monoBehaviours.Length < 1)
        {
            MonoBehaviour[] monos = clickTarget.GetComponentsInParent<MonoBehaviour>();
            CheckDoubleClickTrigger(monos);
        }
        else
        {
            CheckDoubleClickTrigger(monoBehaviours);
        }
    }

    private void OnSingleClick(RaycastHit hit)
    {
        // 单击时执行的操作
        GameObject clickTarget = hit.collider.gameObject;
        MonoBehaviour[] monoBehaviours = clickTarget.GetComponents<MonoBehaviour>();
        if (monoBehaviours == null)
        {
            return;
        }
        if (monoBehaviours.Length < 1)
        {
            MonoBehaviour[] monos = clickTarget.GetComponentsInParent<MonoBehaviour>();
            CheckSingleClickTrigger(monos);
        }
        else
        {
            CheckSingleClickTrigger(monoBehaviours);
        }
    }
    private void CheckDoubleClickTrigger(MonoBehaviour[] behaviours)
    {
        foreach (var ev in MouseDoubleClickEvents?.GetInvocationList())
        {

            if (ev.Target is MonoBehaviour mono)
            {
                foreach(var behav in behaviours)
                {
                    if (mono == behav)
                    {
                        ev.DynamicInvoke();
                    }
                } 
            }
        }
    }
    private void CheckSingleClickTrigger(MonoBehaviour[] behaviours)
    {
        foreach (var ev in MouseClickEvents?.GetInvocationList())
        {

            if (ev.Target is MonoBehaviour mono)
            {
                foreach (var behav in behaviours)
                {
                    if (mono == behav)
                    {
                        ev.DynamicInvoke();
                    }
                }
            }
        }
    }
}