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

/// <summary>
/// 线
/// </summary>
public class Line_item : MonoBehaviour
{
    LineRenderer lineRenderer;
    Line_group line_Group;
    /// <summary>
    /// linerender
    /// </summary>
    List<Vector3> points=new List<Vector3>() {Vector3.zero};
    /// <summary>
    /// 端点
    /// </summary>
    public Line_end[] line_Ends = new Line_end[2];
    /// <summary>
    /// 中间节点
    /// </summary>
    private List<Line_mid> mids= new List<Line_mid>();

    [HideInInspector]
    public Material mat;

    /// <summary>
    /// 初始化线
    /// </summary>
    /// <param name="mat">颜色</param>
    /// <param name="line_Group"></param>
    /// <param name="endpoint">起点</param>
    public void Init(Material mat, Line_group line_Group,Line_end endpoint)
    {
        this.mat = mat;
        this.line_Group = line_Group;
        line_Group.line_Items.Add(this);
        lineRenderer = GetComponent<LineRenderer>();
        lineRenderer.material = mat;
        lineRenderer.startWidth = 0.0025f;
        lineRenderer.endWidth = 0.0025f;
        points.Insert(points.Count - 1, endpoint.transform.position);
        line_Ends[0] = endpoint;
        lineRenderer.positionCount = points.Count;
        lineRenderer.SetPositions(points.ToArray());
        Debug.Log("开始连线");
        line_Group.drawEndPointAction?.Invoke(this);
    }
    /// <summary>
    /// 添加中间点
    /// </summary>
    /// <param name="line_Mid"></param>
    public void AddPoint(Line_mid line_Mid)
    {
        if (line_Mid != null)
        {
            points.Insert(points.Count - 1, line_Mid.transform.position);
            mids.Add(line_Mid);
            lineRenderer.positionCount = points.Count;
            lineRenderer.SetPositions(points.ToArray());
            Debug.Log("连到中点");
        }
        else
        {
            Debug.LogError("mid为空");
        }
    }
    /// <summary>
    /// 画终点
    /// </summary>
    /// <param name="line_End"></param>
    public void AddPoint(Line_end line_End)
    {
        if (line_End != null)
        {
            points.Insert(points.Count - 1, line_End.transform.position);
            points.RemoveAt(points.Count - 1);
            line_Ends[1] = line_End;
            lineRenderer.positionCount = points.Count;
            lineRenderer.SetPositions(points.ToArray());
            //生成mesh
            var lineMesh = new Mesh();
            lineRenderer.BakeMesh(lineMesh,true);
            lineRenderer.gameObject.AddComponent<MeshCollider>().sharedMesh = lineMesh;
            lineRenderer.gameObject.AddComponent<MeshFilter>().mesh = lineMesh;
            lineRenderer.gameObject.AddComponent<MeshRenderer>().material=mat;

            lineRenderer.enabled = false;
            transform.parent = line_Group.transform;
            transform.GetComponent<HighlightPlus.HighlightEffect>().Refresh();
            line_Group.currentLine_Item = null;
            Debug.Log("结束连线");

            line_Group.drawEndPointAction?.Invoke(this);
            ScoreManager.instance?.Check("线_" + line_Ends[0].triggerName + "_" + line_Ends[1].triggerName,true);
        }
        else
        {
            Debug.LogError("end为空");
        }
    }

    public void MyOnMouseDown()
    {
        if (GameManager.RunModelMgr?.ModeType != E_ModeType.Study)
        {
            if (line_Group.currentLine_Item == null || line_Group.currentLine_Item.line_Ends[1] != null)
            {
                line_Group.ChoseLine(this);
            }
        }
    }

    /// <summary>
    /// 刷新到手里的线
    /// </summary>
    public void SetHandPoint()
    {
        Ray ray=Camera.main.ScreenPointToRay(Input.mousePosition);
        points[points.Count - 1]= ray.origin + ray.direction*0.5f;
        lineRenderer.positionCount = points.Count;
        lineRenderer.SetPositions(points.ToArray());
    }

    /// <summary>
    /// 取消到手里的线
    /// </summary>
    public void SetNoHandPoint()
    {
        points[points.Count - 1] = points[points.Count - 2];
        lineRenderer.positionCount = points.Count;
        lineRenderer.SetPositions(points.ToArray());
    }

    /// <summary>
    /// 判断线是否正确
    /// </summary>
    /// <param name="color"></param>
    /// <param name="pointTriggerName1"></param>
    /// <param name="pointTriggerName2"></param>
    /// <returns></returns>
    public bool Check(string color,string pointTriggerName1,string pointTriggerName2)
    {
        //判断颜色
        string tmp = "";
        if (color == "黑")
            tmp = "black";
        else if (color == "红")
            tmp = "red";
        else if (color == "绿")
            tmp = "green";
        else if (color == "黄")
            tmp = "yellow";

        
        if(mat.name.Contains(tmp))
        {
            //判断端点
            if (line_Ends[0]!=null && line_Ends[1]!=null)
            {
                if(line_Ends[0].triggerName== pointTriggerName1 && line_Ends[1].triggerName== pointTriggerName2)
                {
                    return true;
                }
                else if(line_Ends[0].triggerName == pointTriggerName2 && line_Ends[1].triggerName == pointTriggerName1)
                {
                    return true;
                }
            }
        }

        return false;
    }
}