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

public class HoldPosition : PoseBase
{
    public override bool? AnalyzingAction(List<(DateTime, List<Point>)> points, bool isDataReGather = false)
    {
        if (points.Count < 2) // 0级实现逻辑 不做操作
            return null;

        float distance = 0;
        TimeSpan totalTimeSpan = TimeSpan.MinValue;

        var startPoint = points.FirstOrDefault().Item2;
        var endPoint = points.LastOrDefault().Item2;

        var startDir =  "Nose".vector(startPoint) - "Neck".vector(startPoint);
        var endDir = "Nose".vector(endPoint) - "Neck".vector(endPoint);

        var angle = Vector2.SignedAngle(startDir, endDir);


        for (int i = 0; i < points.Count - 1; i++)
        {
            var p1 = points[i].Item2;
            var p2 = points[i + 1].Item2;

            var vector = GetBasicVectorDirection(p1, p2);
            distance += vector.magnitude;

            TimeSpan timeSpan = points[i + 1].Item1 - points[i].Item1;
            totalTimeSpan = timeSpan;
        }

        LogPrint.Warning($"angle: {angle}", PrintLevel.Normal);
        LogPrint.Log($"distance: {distance}, totalTimeSpan: {totalTimeSpan}", PrintLevel.Normal);

        return (angle < 8 && (distance/ points.Count < 8f));
    }

    public override Vector2 GetBasicVectorDirection(List<Point> startPoint, List<Point> endPoint)
    {
        List<Vector2> vectors = new List<Vector2>();
        //必要点位 Nose Neck
        //计算鼻子到头颈矢量
        //return GetAverageVector(startPoint, endPoint, "Nose");
        return GetTwoPointAverageVector(startPoint, endPoint, "Nose", "Neck");
    }

    protected override bool IsMovePoint(string tagName)
    {
        return "Nose" == tagName || "REye" == tagName || "LEye" == tagName || "REar" == tagName || "LEar" == tagName;
    }

    public override bool? MovementValidation(Vector2 distance, TimeSpan totalTimeSpan, int level)
    {

        if (totalTimeSpan.TotalMilliseconds / 1000 < 0.05f)
        {
            LogPrint.Error("TimeSpan too short");
            return null;
        }

        //保持姿势不发生移动

        if (distance.magnitude < 10f)//允许一定误差
        {
            //EventManager.Instance.Dispatch(YogaEventType.Action_Success);
            return true;
        }   
        else
        {
            LogPrint.Warning($"Hold Position, magnitude:{distance.magnitude}", PrintLevel.Important);
            //EventManager.Instance.Dispatch(YogaEventType.Action_Fail);
            return false;
        }
    }

    public override void ExcellenceEstimate(List<(TimeSpan, Vector2)> frameData, Vector2 distance, TimeSpan totalTimeSpan)
    {
        throw new NotImplementedException();
    }
}