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 ReloadShotTrainHandle : BaseTrainHandle
    {
        private SphereShotTarget curTarget;

        private ReloadShotTrainInfoDifficultyData m_DifficultyData;
        private ReloadShotTrainScoreData m_ScoreData;

        private TimeTask m_ObserveTimer;

        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 totalKillNum;
        private double totalTargetNum;
        private double totalReloadTime;
        private double reloadNums;

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

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

            m_TotalHitNum = 0;
            m_MissHitNum = 0;
            totalKillNum = 0;
            totalTargetNum = 0;
            totalReloadTime = 0;
            reloadNums = 0;
            separationMagazineTime = 0;

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

        public override void StartTrain()
        {
            base.StartTrain();
            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.Target, totalTargetNum);
            SetResultMetricsDataValue(MetricsType.TimeToKill, Math.Round((m_TaskTimer.delay - m_TaskTimer.remainingTime) / totalKillNum, 2));
            SetResultMetricsDataValue(MetricsType.ReloadTime, Math.Round(totalReloadTime / reloadNums, 2));
            SetResultMetricsDataValue(MetricsType.KillTotal, totalKillNum);
        }
        #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 Target
        public override void SeparationMagazine()
        {
            base.SeparationMagazine();

            separationMagazineTime = m_TaskTimer.remainingTime;
        }

        public override void ReloadMagazine()
        {
            base.ReloadMagazine();
            
            totalReloadTime += (separationMagazineTime - m_TaskTimer.remainingTime);
            reloadNums++;
        }

        private void OnShottedTargetEvent(BaseShotTarget target)
        {
            if (target != null)
            {
                int baseS = m_ScoreData.baseScore;

                int comboS = Mathf.CeilToInt(baseS * comboNums * m_ScoreData.comboMul);
                IncreaseScore(baseS + comboS);
                comboNums++;

                totalKillNum++;
                TotalHitNum++;

                TimerSystem.GetInstance().RemoveTimeTask(m_ObserveTimer);
                m_ObserveTimer = null;
                SphereShotTarget t = target as SphereShotTarget;
                if (t.CurHealth <= 0)
                {
                    DestroyShootTarget(t);

                    if (m_TrainTaskFinishType == TrainTaskFinishType.Number)
                    {
                        CurrentNumber--;
                        if (CurrentNumber <= 0)
                        {
                            return;
                        }
                    }
                    
                    GenerateShotTarget();
                }
            }
            else
            {
                MissHitNum++;

                comboNums = 0;
                int baseS = m_ScoreData.baseScore;
                int missPunitiveS = Mathf.CeilToInt(baseS * m_ScoreData.missPunitiveMul) + Random.Range(-3, 3);
                IncreaseScore(missPunitiveS * -1);
            }
        }
        #endregion


        private void GenerateShotTarget()
        {
            if (!IsRunning) return;
            GameObject obj = GameObject.Instantiate<GameObject>(Resources.Load<GameObject>("Prefabs/SphereTarget"));
            curTarget = obj.GetComponent<SphereShotTarget>();
            curTarget.onClickCanChangeColor = false;
            curTarget.onHoveringCanChangeColor = false;
            curTarget.defaultColor = ScreenEffectManager.GetInstance().GetTargetColor();
            curTarget.Init(1, ReduceHealthTriggerType.OnClick, false, ReduceHealthType.Per, MotionType.None, RandomPosition());
            curTarget.IsRunning = true;

            m_ObserveTimer = TimerSystem.GetInstance().AddTimeTask(ObserveTimerTimeOut, m_DifficultyData.duration);

            totalTargetNum++;

            StartBestHitTimer();
        }

        private void ObserveTimerTimeOut()
        {
            comboNums = 0;
            int baseS = m_ScoreData.baseScore;
            int missPunitiveS = Mathf.CeilToInt(baseS * m_ScoreData.timeOutPunitiveMul) + Random.Range(-3, 3);
            IncreaseScore(missPunitiveS * -1);

            m_ObserveTimer = null;

            ResetTarget();
            if (m_TrainTaskFinishType == TrainTaskFinishType.Number)
            {
                CurrentNumber--;
                if (CurrentNumber <= 0)
                {
                    return;
                }
            }
            GenerateShotTarget();
        }

        private Vector3 RandomPosition()
        {
            Vector2 widthLimt = Vector2.zero;
            Vector2 heightLimt = Vector2.zero;
            switch (m_DifficultyType)
            {
                case DifficultyType.Standard:
                    widthLimt = new Vector2(-4, 4);
                    heightLimt = new Vector2(-1.5f, 1.5f);
                    break;
                case DifficultyType.Advance:
                    widthLimt = new Vector2(-8, 8);
                    heightLimt = new Vector2(-1.5f, 3.5f);
                    break;
                case DifficultyType.Professional:
                    widthLimt = new Vector2(-8, 8);
                    heightLimt = new Vector2(-1.5f, 5f);
                    break;
            }
            Vector3 min = ExtraTool.GetScreenOffsetPosition(ExtraTool.Sphere_Diameter1_ScreenLeftBottomOffset, m_DifficultyData.distance, widthLimt, heightLimt);
            Vector3 max = ExtraTool.GetScreenOffsetPosition(ExtraTool.Sphere_Diameter1_ScreenRightTopOffset, m_DifficultyData.distance, widthLimt, heightLimt);

            return ExtraTool.RandomPosition(min, max);
        }

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

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