using HighlightPlus;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;

/// <summary>
/// 一组连线控制
/// </summary>
public class Line_group : MonoBehaviour
{
    public static GameObject lineitemPrefb;

    public Material redMat;
    public Material greenMat;
    public Material yellowMat;
    public Material blackMat;

    /// <summary>
    /// 中点
    /// </summary>
    public List<Line_mid> line_Mids=new List<Line_mid>();
    /// <summary>
    /// 线
    /// </summary>
    public List<Line_item> line_Items=new List<Line_item>();
    /// <summary>
    /// 端点
    public List<Line_end> line_Ends= new List<Line_end>();


    /// <summary>
    /// 当前选中的线
    /// </summary>
    public Line_item currentLine_Item;

    /// <summary>
    /// 删除线回调
    /// </summary>
    public Action<Line_item> deletLineAction;
    /// <summary>
    /// 画线回调
    /// </summary>
    public Action<Line_item> drawEndPointAction;

    private void Awake()
    {
        line_Mids=transform.GetComponentsInChildren<Line_mid>(true).ToList();
        line_Ends = transform.GetComponentsInChildren<Line_end>(true).ToList();
        line_Mids.ForEach(a =>
        {
            a.Init(this); 
            a.gameObject.SetActive(false);
        });
        line_Ends.ForEach(a => 
        { 
            a.Init(this);
            a.gameObject.SetActive(false);
        });
    }

    private void Update()
    {
        //删除线
        if(currentLine_Item!=null && Input.GetKeyDown(KeyCode.Delete))
        {
            DestroyLineItem(currentLine_Item);
            currentLine_Item =null;
        }

        //准备画下一个点
        if(currentLine_Item != null)
        {
            if(currentLine_Item.line_Ends[1] == null)
            {
                currentLine_Item.SetHandPoint();
            }
            else
            {
                currentLine_Item.SetNoHandPoint();
            }
        }

        //选中线
        if (Input.GetMouseButtonDown(0)) 
        {
            Ray ray=Camera.main.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray, out RaycastHit hit,10f,1 << LayerMask.NameToLayer("Line")))
            {
                if (hit.transform.GetComponent<Line_item>() != null)
                {
                    //点击线
                    hit.transform.GetComponent<Line_item>().MyOnMouseDown();
                }
                else if(hit.transform.GetComponent<Line_end>()!=null)
                {
                    hit.transform.GetComponent<Line_end>().MyOnMDown();
                }
                else if(hit.transform.GetComponent<Line_mid>() != null)
                {
                    hit.transform.GetComponent<Line_mid>().MyOnMDown();
                }
            }
            else
            {
                //不在画线中，点到空气取消选择
                if (!(currentLine_Item != null && currentLine_Item.line_Ends[1]==null))
                {
                    ChoseLine(null);
                }
            }
        }
    }

    /// <summary>
    /// 选中线
    /// </summary>
    /// <param name="line"></param>
    public void ChoseLine(Line_item line)
    {
        if (line != null)
        {
            currentLine_Item = line;
            line_Items.ForEach(item =>
            {
                item.transform.GetComponent<HighlightEffect>().highlighted = (item == line);
            });
            Debug.Log("选择线"+ line.name);
        }
        else
        {
            currentLine_Item = null;
            line_Items.ForEach(item =>
            {
                item.transform.GetComponent<HighlightEffect>().highlighted = false;
            });
            Debug.Log("取消选择");
        }
    }

    /// <summary>
    /// 选择材质
    /// </summary>
    /// <returns></returns>
    public Material GetCurrentLineMaterial()
    {
        if(LiveSceneManager.Instance.currentTool!=null && LiveSceneManager.Instance.currentTool.name.Contains("绝缘导线"))
        {
            Tool_InsulatedConductor  ic= LiveSceneManager.Instance.currentTool.GetComponent<Tool_InsulatedConductor>();
            if(ic!=null)
            {
                if(ic.currentChoseLine != null)
                {
                    if (ic.currentChoseLine.name == "红")
                        return redMat;
                    else if (ic.currentChoseLine.name == "黄")
                        return yellowMat;
                    else if (ic.currentChoseLine.name == "绿")
                        return greenMat;
                    else if (ic.currentChoseLine.name == "黑")
                        return blackMat;
                }
                else
                {
                    TipPanel.ShowTip("请先选择绝缘导线线圈！");
                }
            }
        }

        return null;
    }

    /// <summary>
    /// 直接生成连线
    /// </summary>
    /// <param name="end1"></param>
    /// <param name="end2"></param>
    /// <param name="colorMat"></param>
    public void CreateLine(string end1,List<string> mids,string end2,string colorMat)
    {
        if (!CheckLineItem(end1, end2))
        {

            if (lineitemPrefb == null)
                lineitemPrefb = Resources.Load<GameObject>("Prefabs/Objects/Line/线");

            Material mat = null;
            if (colorMat == "红")
                mat = redMat;
            else if (colorMat == "黄")
                mat = yellowMat;
            else if (colorMat == "绿")
                mat = greenMat;
            else if (colorMat == "黑")
                mat = blackMat;
            else
                return;

            Line_end endL1 = line_Ends.Find(a => a.triggerName == end1);
            Line_end endL2 = line_Ends.Find(a => a.triggerName == end2);
            if (endL1 != null && endL2 != null)
            {
                GameObject obj = Instantiate<GameObject>(lineitemPrefb);
                Line_item item = obj.GetComponent<Line_item>();
                item.Init(mat, this, endL1);
                if (mids != null)
                {
                    mids.ForEach(mid =>
                    {
                        Line_mid limemid = line_Mids.Find(a => a.triggerName == mid);
                        item.AddPoint(limemid);
                    });
                }
                item.AddPoint(endL2);
            }
        }
    }

    /// <summary>
    /// 删除线
    /// </summary>
    public void DestroyLineItem(Line_item line_Item)
    {
        line_Items.Remove(line_Item);
        deletLineAction?.Invoke(currentLine_Item);
        Destroy(line_Item.gameObject);
    }

    /// <summary>
    /// 查找线
    /// </summary>
    /// <param name="end1"></param>
    /// <param name="end2"></param>
    public Line_item CheckLineItem(string end1, string end2)
    {
        return line_Items.Find(line => line.line_Ends[1] != null && line.line_Ends.Any(end => end.triggerName == end1) && line.line_Ends.Any(end => end.triggerName == end2));
    }
}