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 SmallTargetShotTrainHandle : BaseTrainHandle
    {
        private SmallTargetShotTrainInfoDifficultyData m_DifficultyData;
        private SmallTargetShotTrainScoreData m_ScoreData;

        private TimeTask m_ObserveTimer;

        private int roundIndex;

        private double m_TotalHitNum;
        private double TotalHitNum
        {
            get { return m_TotalHitNum; }
            set
            {
                m_TotalHitNum = value;
                UpdatePrecision();
            }
        }
        private double m_MissHitNum;
        private double MissHitNum
        {
            get { return m_MissHitNum; }
            set
            {
                m_MissHitNum = value;
                UpdatePrecision();
            }
        }
        private double totalTargetNum;
        private float totalReactionTime;

        private SphereShotTarget curTarget;

        public SmallTargetShotTrainHandle(BaseTrainCallBack callBack, BaseTrainInfo info, DifficultyType difficultyType) : base(callBack, info, difficultyType)
        {
            SetShotTargetInteractiveEvent(ShotTargetInteractiveType.OnClick, OnShottedTargetEvent);

            m_DifficultyData = info.GetDifficultyData<SmallTargetShotTrainInfoDifficultyData>(m_DifficultyType);
            m_ScoreData = info.GetScoreData<SmallTargetShotTrainScoreData>(m_DifficultyType);
        }

        #region Train
        protected override void ResetTrain()
        {
            ResetTarget();

            TimerSystem.GetInstance().RemoveTimeTask(m_ObserveTimer);
            m_ObserveTimer = null;

            roundIndex = 0;
            m_TotalHitNum = 0;
            m_MissHitNum = 0;
            totalTargetNum = 0;
            totalReactionTime = 0;
        }
        public override void StartTrain()
        {
            base.StartTrain();
            ResetTrain();
            GenerateShotTarget();
        }

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

            if (m_ObserveTimer != null)
            {
                m_ObserveTimer.pause = true;
            }
        }

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

            if (m_ObserveTimer != null)
            {
                m_ObserveTimer.pause = false;
            }
        }

        public override void CalculateTrainResult()
        {
            SetResultMetricsDataValue(MetricsType.Kill_Sec, Math.Round(TotalHitNum / TrainInfo.duration, 2));
            SetResultMetricsDataValue(MetricsType.KillTotal, TotalHitNum);
            SetResultMetricsDataValue(MetricsType.ReactionTime, Math.Round(totalReactionTime / (TotalHitNum + MissHitNum), 2));
            SetResultMetricsDataValue(MetricsType.Target, totalTargetNum);
        }
        #endregion
        #region TrainResult
        private void UpdatePrecision()
        {
            double totalShot = TotalHitNum + MissHitNum;
            double precision = 0;
            if (totalShot != 0)
            {
                precision = Math.Round(TotalHitNum / totalShot, 2);
            }
            SetResultMetricsDataValue(MetricsType.Precision, precision);
        }
        #endregion
        #region ShootTarget
        private void OnShottedTargetEvent(BaseShotTarget target)
        {
            if (target != null)
            {
                int baseS = roundIndex % 2 == 1 ? m_ScoreData.firstBaseScore : m_ScoreData.secondBaseScore;
                int comboS = Mathf.CeilToInt(baseS * comboNums * m_ScoreData.comboMul);
                int bestS = m_IsBestHit ? Mathf.CeilToInt(baseS * m_ScoreData.bestHitMul) : 0;
                IncreaseScore(baseS + comboS + bestS);
                comboNums++;

                TotalHitNum++;

                if (m_ObserveTimer != null)
                {
                    totalReactionTime += m_ObserveTimer.delay - m_ObserveTimer.remainingTime;
                }

                TimerSystem.GetInstance().RemoveTimeTask(m_ObserveTimer);
                m_ObserveTimer = null;

                DestroyShootTarget(target as SphereShotTarget);
                GenerateShotTarget();
            }
            else
            {
                MissHitNum++;
                comboNums = 0;
                int baseS = roundIndex % 3 == 1 ? m_ScoreData.firstBaseScore : m_ScoreData.secondBaseScore;
                int missPunitiveS = Mathf.CeilToInt(baseS * m_ScoreData.missPunitiveMul);
                IncreaseScore(missPunitiveS * -1);
            }
        }
        #endregion

        private void GenerateShotTarget()
        {
            roundIndex++;

            GameObject obj = GameObject.Instantiate<GameObject>(Resources.Load<GameObject>("Prefabs/SmallSphereTarget"));
            curTarget = obj.GetComponent<SphereShotTarget>();
            curTarget.IsRunning = true;
            curTarget.onClickCanChangeColor = false;
            curTarget.onHoveringCanChangeColor = false;
            curTarget.defaultColor = ScreenEffectManager.GetInstance().GetTargetColor();
            Vector3 originPos = roundIndex % 2 == 1 ? ExtraTool.GetWorldPositionWithResolutionPercent(0.5f, 0.5f, 10) : RandomPosition();
            curTarget.Init(1, ReduceHealthTriggerType.OnClick, false, ReduceHealthType.Per, MotionType.None, originPos);

            if (roundIndex % 2 != 1)
            {
                m_ObserveTimer = TimerSystem.GetInstance().AddTimeTask(ObserveTimerTimeOut, m_DifficultyData.duration);
            }

            totalTargetNum++;

            StartBestHitTimer();
        }

        private void ObserveTimerTimeOut()
        {
            comboNums = 0;
            int baseS = roundIndex % 2 == 1 ? m_ScoreData.firstBaseScore : m_ScoreData.secondBaseScore;
            int missPunitiveS = Mathf.CeilToInt(baseS * m_ScoreData.timeOutPunitiveMul) + Random.Range(-3, 3);
            IncreaseScore(missPunitiveS * -1);

            totalReactionTime += m_ObserveTimer.delay;

            m_ObserveTimer = null;

            DestroyShootTarget(curTarget as SphereShotTarget);
            GenerateShotTarget();
        }

        private Vector3 RandomPosition()
        {
            Vector2 widthLimt = new Vector2(-8, 8);
            Vector2 heightLimt = new Vector2(-1.5f, 3f);
            Vector3 min = ExtraTool.GetScreenOffsetPosition(ExtraTool.Sphere_Diameter1_ScreenLeftBottomOffset, 10f, widthLimt, heightLimt);
            Vector3 max = ExtraTool.GetScreenOffsetPosition(ExtraTool.Sphere_Diameter1_ScreenRightTopOffset, 10f, widthLimt, heightLimt);
            return ExtraTool.RandomPosition(min, max);
        }

        private void DestroyShootTarget(SphereShotTarget target)
        {
            if (target != null)
            {
                target.IsRunning = false;
                GameObject.Destroy(target.gameObject);
            }
        }

        private void ResetTarget()
        {
            if (curTarget != null)
            {
                curTarget.IsRunning = false;
                GameObject.Destroy(curTarget.gameObject);
                curTarget = null;
            }
        }
    }
}