using ShotSimulator.Screen;
using ShotSimulator.Target;
using ShotSimulator.Tool;
using ShotSimulator.Train.Info;
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Random = UnityEngine.Random;

namespace ShotSimulator.Train
{
    public class SwitchTargetTrackTrainHandle : BaseTrainHandle
    {
        private int maxTargetNum = 3;

        private List<SphereShotTarget> curTargets = new List<SphereShotTarget>();

        private List<float> randomYD1 = new List<float>() { -1.5f, -0.25f, 1f };
        private List<float> randomYD2 = new List<float>() { -1.5f, 0.5f, 2.5f };
        private List<float> randomYD3 = new List<float>() { -1.5f, 1.25f, 4f };

        private List<float> selectedY = new List<float>();
        private List<float> unSelectedY = new List<float>();

        private SwitchTargetTrackDifficultyData m_DifficultyData;
        private SwitchTargetTrackTrainScoreData m_ScoreData;


        private List<SphereShotTarget> firstTargets = new List<SphereShotTarget>();

        private double punitiveTime;

        private double m_TotalHoverTime;
        private double TotalHoverTime
        {
            get { return m_TotalHoverTime; }
            set
            {
                m_TotalHoverTime = value;
                UpdatePrecision();
            }
        }
        private double m_TotalMissTime;
        private double TotalMissTime
        {
            get { return m_TotalMissTime; }
            set
            {
                m_TotalMissTime = value;
                UpdatePrecision();
            }
        }

        public SwitchTargetTrackTrainHandle(BaseTrainCallBack callBack, BaseTrainInfo info, DifficultyType difficultyType) : base(callBack, info, difficultyType)
        {
            SetShotTargetInteractiveEvent(ShotTargetInteractiveType.OnHovering, OnHoveringTargetEvent);
            SetShotTargetInteractiveEvent(ShotTargetInteractiveType.OnNotEntering, OnNotHoveringEvent);

            m_DifficultyData = info.GetDifficultyData<SwitchTargetTrackDifficultyData>(m_DifficultyType);
            m_ScoreData = info.GetScoreData<SwitchTargetTrackTrainScoreData>(m_DifficultyType);
        }

        private void InitGenerateShotTargets()
        {
            for (int i = 0; i < maxTargetNum; i++)
            {
                GenerateShotTarget();
            }
        }

        private void GenerateShotTarget()
        {
            GameObject obj = GameObject.Instantiate<GameObject>(Resources.Load<GameObject>("Prefabs/SphereTarget"));
            SphereShotTarget target = obj.GetComponent<SphereShotTarget>();
            float randomY = RandomY();

            List<Vector3> pos = new List<Vector3>();
            Vector2 widthLimt = new Vector2(-8, 8);
            Vector2 heightLimt = new Vector2(-1.5f, 5f);
            Vector3 leftPos = ExtraTool.GetScreenOffsetPosition(new Vector2(0.25f, 0.5f), m_DifficultyData.targetDistance, widthLimt, heightLimt);
            leftPos.y = randomY;
            Vector3 rightPos = ExtraTool.GetScreenOffsetPosition(new Vector2(0.75f, 0.5f), m_DifficultyData.targetDistance, widthLimt, heightLimt);
            rightPos.y = randomY;
            Vector3 originPos = ExtraTool.GetScreenOffsetPosition(new Vector2(Random.Range(0.25f, 0.75f), 0.5f), m_DifficultyData.targetDistance, widthLimt, heightLimt);
            originPos.y = randomY;
            pos.Add(leftPos);
            pos.Add(rightPos);

            target.onClickCanChangeColor = false;
            target.onHoveringCanChangeColor = true;
            target.defaultColor = ScreenEffectManager.GetInstance().GetTargetColor();
            target.onHoveringColor = Color.green;
            target.Init(2f, ReduceHealthTriggerType.OnHovering, true, ReduceHealthType.Time, MotionType.Foreach, originPos, pos, m_DifficultyData.motionSpeed);
            target.IsRunning = true;
            curTargets.Add(target);
        }

        private float RandomY()
        {
            int yIndex = Random.Range(0, unSelectedY.Count);
            float y = unSelectedY[yIndex];
            unSelectedY.RemoveAt(yIndex);
            selectedY.Add(y);

            return y;
        }

        private void DestroyShootingTarget(SphereShotTarget target)
        {
            if (target != null)
            {
                selectedY.Remove(target.transform.position.y);
                unSelectedY.Add(target.transform.position.y);

                curTargets.Remove(target);
                target.IsRunning = false;
                GameObject.Destroy(target.gameObject);
            }
        }

        private void ResetTarget()
        {
            for (int i = 0; i < curTargets.Count; i++)
            {
                curTargets[i].IsRunning = false;
                GameObject.Destroy(curTargets[i].gameObject);
            }
            curTargets.Clear();
        }

        private void SetCurTargetsRunning(bool isRunning)
        {
            for (int i = 0; i < curTargets.Count; i++)
            {
                curTargets[i].IsRunning = isRunning;
            }
        }

        private void UpdatePrecision()
        {
            SetResultMetricsDataValue(MetricsType.Precision, Math.Round(TotalHoverTime / (TotalHoverTime + TotalMissTime), 2));
        }
        #region Train
        protected override void ResetTrain()
        {
            firstTargets.Clear();

            ResetTarget();

            punitiveTime = 0;

            selectedY.Clear();
            unSelectedY.Clear();

            m_TotalHoverTime = 0;
            m_TotalMissTime = 0;
        }

        public override void StartTrain()
        {
            base.StartTrain();

            switch (m_DifficultyData.difficultyType)
            {
                case DifficultyType.Standard:
                    unSelectedY.AddRange(randomYD1);
                    break;
                case DifficultyType.Advance:
                    unSelectedY.AddRange(randomYD2);
                    break;
                case DifficultyType.Professional:
                    unSelectedY.AddRange(randomYD3);
                    break;
            }

            InitGenerateShotTargets();
        }

        public override void PauseTrain()
        {
            base.PauseTrain();

            SetCurTargetsRunning(false);
        }

        public override void ContinueTrain()
        {
            base.ContinueTrain();

            SetCurTargetsRunning(true);
        }

        public override void CalculateTrainResult()
        {
            SetResultMetricsDataValue(MetricsType.Precision, Math.Round(TotalHoverTime / (TotalHoverTime + TotalMissTime), 2));
            SetResultMetricsDataValue(MetricsType.AverageTimeOnTarget, Math.Round(TotalHoverTime, 2));
        }
        #endregion

        #region ShotTarget
        private void OnHoveringTargetEvent(BaseShotTarget target)
        {
            if (target != null)
            {
                SphereShotTarget t = target as SphereShotTarget;
                if (t.CurHealth <= 0)
                {
                    int comboS = Mathf.CeilToInt(m_ScoreData.secondBaseScore * comboNums * m_ScoreData.comboMul);
                    IncreaseScore(m_ScoreData.secondBaseScore + comboS);

                    firstTargets.Remove(t);
                    DestroyShootingTarget(t);
                    GenerateShotTarget();
                    comboNums++;
                }
                else if (t.CurHealth <= 1)
                {
                    if (!firstTargets.Contains(t))
                    {
                        firstTargets.Add(t);
                        int comboS = Mathf.CeilToInt(m_ScoreData.firstBaseScore * comboNums * m_ScoreData.comboMul);
                        IncreaseScore(m_ScoreData.firstBaseScore + comboS);
                    }
                }
                TotalHoverTime += Time.deltaTime;
            }

        }

        private void OnNotHoveringEvent(BaseShotTarget target)
        {
            punitiveTime += Time.deltaTime;
            if (punitiveTime >= 1)
            {
                comboNums = 0;
                punitiveTime = 0;

                int missPunitiveS = Mathf.CeilToInt(m_ScoreData.firstBaseScore * m_ScoreData.missPunitiveMul);
                IncreaseScore(missPunitiveS * -1);
            }
            TotalMissTime += Time.deltaTime;
        }
        #endregion
    }
}