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

public abstract class PoseBase
{
    public Dictionary<string, Point> GetVaildPoints(List<Point> points, List<string> pointName)
    {
        var retVal = new Dictionary<string, Point>();

        foreach (var name in pointName)
        {
            if (points[YogaConfig.BODY_PARTS[name]] != new Point(-1, -1))
            {
                retVal.Add(name, points[YogaConfig.BODY_PARTS[name]]);
            }
        }
        return retVal;
    }
    public abstract Vector2 GetBasicVectorDirection(List<Point> startPoint, List<Point> endPoint);
    //public abstract void SpeedCheck(double v);
    public abstract void ValidationMovement(Vector2 distance, TimeSpan totalTimeSpan, int level);
    public abstract void ExcellenceEstimate(List<(TimeSpan, Vector2)> frameData, Vector2 distance, TimeSpan totalTimeSpan);

    protected Vector2 GetAverageVector(List<Point> startPoint, List<Point> endPoint, string movePoint)
    {
        List<Vector2> vectors = new List<Vector2>();
        for (int i = 0; i < endPoint.Count; i++)
        {
            string tagName = i.tagName();

            //自身不计算
            if (movePoint.Equals(tagName) || movePoint.Equals(tagName))
                continue;
            //动点位不计算
            if (IsMovePoint(tagName))
                continue;

            if (!tagName.IsValid(startPoint) || !tagName.IsValid(endPoint))
                continue;
            //动点-静点
            Vector2 startEyeV = new Vector2((float)movePoint.p(startPoint).x - (float)tagName.p(startPoint).x, (float)movePoint.p(startPoint).y - (float)tagName.p(startPoint).y);
            Vector2 endEyeV = new Vector2((float)movePoint.p(endPoint).x - (float)tagName.p(endPoint).x, (float)movePoint.p(endPoint).y - (float)tagName.p(endPoint).y);
            vectors.Add(endEyeV - startEyeV);
        }
        //计算平均矢量
        Vector2 averageV = new Vector2(0, 0);
        foreach (var v in vectors)
        {
            averageV += v;
        }
        averageV /= vectors.Count;

        return averageV;
    }

    /// <summary>
    /// 确定该点位是否为运动时会跟着动的点位
    /// 内部重写，写明该动作的所有动点
    /// </summary>
    /// <param name="tagName">点位名称</param>
    /// <returns>是否为动点</returns>
    protected abstract bool IsMovePoint(string tagName);

    /// <summary>
    /// 动作检测
    /// </summary>
    /// <param name="points"></param>
    /// <param name="isDataReGather"></param>
    public virtual void AnalyzingAction(List<(DateTime, List<Point>)> points, bool isDataReGather = false)
    {
        if (points.Count < 2) // 0级实现逻辑 不做操作
            return;

        var distance = Vector2.zero;
        TimeSpan totalTimeSpan = TimeSpan.MinValue;
        for (int i = 0; i < points.Count - 1; i++)
        {
            var p1 = points[i].Item2;
            var p2 = points[i + 1].Item2;
            
            var vector = GetAverageVector(p1, p2, "Nose"); //关键点Nose
            distance += vector;
            if (vector.magnitude > 0.1f) //如果矢量长度大于0.1f，说明有运动
            {
                TimeSpan timeSpan = points[i + 1].Item1 - points[i].Item1;

                if (totalTimeSpan == TimeSpan.MinValue)
                    totalTimeSpan = timeSpan;
                else
                    totalTimeSpan += timeSpan;
            }
        }
        LogPrint.Log($"distance: {distance}, totalTimeSpan: {totalTimeSpan}", PrintLevel.Normal);

        int level = 0;
        if (points.Count > 3 && !isDataReGather) //1级实现逻辑
        {
            level = 1;
        }
        if (points.Count > 10 && !isDataReGather) //2级实现逻辑
        {
            level = 2;
        }

        //动作方位是否正确
        ValidationMovement(distance, totalTimeSpan, level);
    }
}