using Thousandto.Code.Logic;
using Thousandto.Core.Asset;
using Thousandto.SkillEditor;
using Thousandto.SkillEditor.DIY;
using Thousandto.SkillEditor.Support;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;
using UnityEditor;
using UnityEngine;

namespace Thousandto.SkillEditor.DIY
{
    /// <summary>
    /// 简单技能召唤物
    /// </summary>
    public class EditorSimpleSkillObject : EditorBaseObject
    {
        public EditorEntity Owner { get; private set; }
        public PlaySimpleSkillObjectEventInfo EventInfo { get; private set; }
        public EditorVFXScript Vfx { get; private set; }
        public bool IsFinish { get; private set; }
        public int CurFrame { get; private set; }
        private float _frameTimer = 0f;
        private int _curHitCount = 0;
        private const float OneFrameTime = 1f / 30f;

        public EditorSimpleSkillObject(EditorEntity owner, PlaySimpleSkillObjectEventInfo eventInfo) : 
            base(new GameObject("[SimpleSkillObject]"), EditorObjType.SkillSimpleObj)
        {
            Owner = owner;
            EventInfo = eventInfo;
        }

        public void Start()
        {
            var vfxPath = AssetUtils.GetModelAssetPath(ModelTypeCode.SkillVFX, EventInfo.VfxID);
            Vfx = EditorVFXPlayer.Instance.PlayVFX(vfxPath, RootTrans);
            var pos = Vector3.zero;
            if(EventInfo.PosType == 0)
            {
                pos = Owner.Position;
            }
            else
            {
                var target = SkillEditorScene.FindMainTarget(Owner);
                if(target != null )
                {
                    if(Vector3.SqrMagnitude(target.Position - Owner.Position) <= EventInfo.MaxDis * EventInfo.MaxDis)
                    {
                        pos = target.Position;
                    }
                    else
                    {
                        var dir = (target.Position - Owner.Position);
                        dir.y = 0f;
                        pos = Owner.Position + dir.normalized * EventInfo.MaxDis;
                    }
                }
                else
                {
                    pos = Owner.Position + Owner.RootTrans.forward * EventInfo.MaxDis;
                }
            }
            pos.y = 0f;
            RootTrans.position = pos;
            CurFrame = 0;
            _frameTimer = 0f;
            _curHitCount = 0;
            IsFinish = false;
            CheckHitEvent(CurFrame);
        }

        private void CheckHitEvent(int frame)
        {
            if((CurFrame >= EventInfo.StartHitFrame && (CurFrame - EventInfo.StartHitFrame) % EventInfo.HitInterval == 0) && _curHitCount < EventInfo.HitCount)
            {
                SkillEditorScene.PlayHitEvent(this);
                AddWarningField(EventInfo.FindInfo);
                ++_curHitCount;
            }
        }

        public void Stop()
        {
            if(Vfx != null)
            {
                Vfx.Stop();
            }
            GameObject.DestroyImmediate(RootGo);
            IsFinish = true;
        }

        public void Update(float dt)
        {
            _frameTimer += dt;
            if (IsFinish)
                return;
            _frameTimer += dt;
            while (_frameTimer >= OneFrameTime)
            {
                ++CurFrame;
                CheckHitEvent(CurFrame);
                _frameTimer -= OneFrameTime;
            }

            if (CurFrame >= EventInfo.LifeFrame)
            {
                Stop();
            }
        }
    }
}