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 MozambiqueTrainHandle : BaseTrainHandle
    {
        private MozambiqueHumanoidShotTarget curTarget;

        private MozambiqueTrainDifficultyData m_DifficultyData;
        private MozambiqueTrainScoreData m_ScoreData;

        private TimeTask m_ObserveTimer;
        private TimeTask m_IntervalTimer;

        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 totalKillNums;
        private double mozambiqueKillNums;

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

            m_DifficultyData = info.GetDifficultyData<MozambiqueTrainDifficultyData>(m_DifficultyType);
            m_ScoreData = info.GetScoreData<MozambiqueTrainScoreData>(m_DifficultyType);
        }
        #region Train
        protected override void ResetTrain()
        {
            ResetTarget();

            m_TotalHitNum = 0;
            m_MissHitNum = 0;
            totalKillNums = 0;
            mozambiqueKillNums = 0;

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

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

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

            if (m_ObserveTimer != null)
            {
                m_ObserveTimer.pause = true;
            }
            if (m_IntervalTimer != null)
            {
                m_IntervalTimer.pause = true;
            }
        }
        public override void ContinueTrain()
        {
            base.ContinueTrain();

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

        public override void CalculateTrainResult()
        {
            SetResultMetricsDataValue(MetricsType.VisualMemory, mozambiqueKillNums);         
            SetResultMetricsDataValue(MetricsType.Kill_Sec, Math.Round(totalKillNums / TrainInfo.duration, 2));
            SetResultMetricsDataValue(MetricsType.KillTotal, totalKillNums);
            SetResultMetricsDataValue(MetricsType.TimeToKill, Math.Round(TrainInfo.duration / totalKillNums, 2));
            SetResultMetricsDataValue(MetricsType.ShotsPerKill, Math.Round((TotalHitNum + MissHitNum) / totalKillNums, 2));
        }
        #endregion

        #region Target
        private void OnShottedTargetEvent(BaseShotTarget target)
        {
            int baseS = GetCurrentBaseScore(target != null);

            if (target != null)
            {
                HumanoidPartShotTarget part = target as HumanoidPartShotTarget;
                MozambiqueHumanoidShotTarget dependTarget = part.DependTarget as MozambiqueHumanoidShotTarget;

                if (dependTarget.Health <= 0)
                {
                    totalKillNums++;
                    if(IsMozambiqueShotOrder(dependTarget.m_CauseHumanoidPartReduceHPOrder))
                    {
                        mozambiqueKillNums++;
                    }

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

                    DestroyShootTarget(dependTarget);
                }
                TotalHitNum++;
                if (!dependTarget.isCurFalseHit)
                {

                    int bestS = m_IsBestHit ? Mathf.CeilToInt(baseS * m_ScoreData.bestHitMul) : 0;
                    IncreaseScore(baseS + bestS);
                }
                else
                {
                    int missPunitiveS = Mathf.CeilToInt(baseS * m_ScoreData.falsePunitiveMul) + Random.Range(-2, 2);
                    IncreaseScore(missPunitiveS * -1);
                }
                StartBestHitTimer();
            }
            else
            {
                MissHitNum++;
                int missPunitiveS = Mathf.CeilToInt(baseS * m_ScoreData.missPunitiveMul) + Random.Range(-3, 3);

                IncreaseScore(missPunitiveS * -1);
            }
        }
        #endregion

        public bool IsMozambiqueShotOrder(List<HumanoidPartType> order)
        {
            if (order == null) return false;
            if (order.Count != 3) return false;
            return order[0] == HumanoidPartType.Body && order[1] == HumanoidPartType.Body && order[2] == HumanoidPartType.Head;
        }

        private int GetCurrentBaseScore(bool isHit)
        {
            int baseS = 0;
            switch (isHit? curTarget.Health: curTarget.Health - 1)
            {
                case 2:
                    baseS = m_ScoreData.firstBaseScore;
                    break;
                case 1:
                    baseS = m_ScoreData.secondBaseScore;
                    break;
                case 0:
                    baseS = m_ScoreData.thirdBaseScore;
                    break;
                default:
                    baseS = m_ScoreData.firstBaseScore;
                    break;
            }
            return baseS;
        }

        private void GenerateShotTarget()
        {
            GameObject obj = GameObject.Instantiate<GameObject>(Resources.Load<GameObject>("Prefabs/MozambiqueHumanoidShotTarget"));
            obj.transform.rotation = Quaternion.Euler(0, 180, 0);
            curTarget = obj.GetComponent<MozambiqueHumanoidShotTarget>();
            curTarget.InitHumanoidShotTarget(3, RandomPosition());
            curTarget.InitMozambiqueHumanoidShotTarget();
            m_ObserveTimer = TimerSystem.GetInstance().AddTimeTask(ObserveTimerTimeOut, 5);

            StartBestHitTimer();
        }

        private void IntervalTimerTimeOut()
        {
            GenerateShotTarget();
        }

        private void ObserveTimerTimeOut()
        {
            m_ObserveTimer = null;

            int baseS = GetCurrentBaseScore(false);
            int missPunitiveS = Mathf.CeilToInt(baseS * m_ScoreData.outTimePunitiveMul) + Random.Range(-2, 2);
            IncreaseScore(missPunitiveS * -1);

            DestroyShootTarget(curTarget);
        }

        private Vector3 RandomPosition()
        {
            Vector2 minOffset = Vector2.zero;
            Vector2 maxOffset = Vector2.zero;
            switch (m_DifficultyData.difficultyType)
            {
                case DifficultyType.Standard:
                    minOffset = new Vector2(0.2f, 0f);
                    maxOffset = new Vector2(0.8f, 0f);
                    break;
                case DifficultyType.Advance:
                    minOffset = new Vector2(0.2f, 0.15f);
                    maxOffset = new Vector2(0.8f, 0.4f);
                    break;
                case DifficultyType.Professional:
                    minOffset = new Vector2(0.2f, 0.15f);
                    maxOffset = new Vector2(0.8f, 0.6f);
                    break;
            }
            Vector2 widthLimt = Vector2.zero;
            Vector2 heightLimt = Vector2.zero;
            switch (m_DifficultyType)
            {
                case DifficultyType.Standard:
                    widthLimt = new Vector2(-3.5f, 3.5f);
                    heightLimt = new Vector2(-1.8f, -1.8f);
                    break;
                case DifficultyType.Advance:
                    widthLimt = new Vector2(-5, 5);
                    heightLimt = new Vector2(-1.8f, -1f);
                    break;
                case DifficultyType.Professional:
                    widthLimt = new Vector2(-8, 8);
                    heightLimt = new Vector2(-1.8f, 0f);
                    break;
            }
            Vector3 min = ExtraTool.GetScreenOffsetPosition(minOffset, m_DifficultyData.distance, widthLimt, heightLimt);
            Vector3 max = ExtraTool.GetScreenOffsetPosition(maxOffset, m_DifficultyData.distance, widthLimt, heightLimt);
            return ExtraTool.RandomPosition(min, max);
        }

        private void DestroyShootTarget(HumanoidShotTarget target)
        {
            if (target != null)
            {
                GameObject.Destroy(target.gameObject);
            }
            m_IntervalTimer = TimerSystem.GetInstance().AddTimeTask(IntervalTimerTimeOut, 3f);
        }

        private void ResetTarget()
        {
            if (curTarget != null)
            {
                GameObject.Destroy(curTarget.gameObject);
                curTarget = null;
            }
        }
        private void UpdatePrecision()
        {
            double totalShot = TotalHitNum + MissHitNum;
            double precision = 0;
            if (totalShot != 0)
            {
                precision = Math.Round(TotalHitNum / totalShot, 2);
            }
            SetResultMetricsDataValue(MetricsType.Precision, precision);
        }
    }
}