using DG.Tweening;
using UnityEngine;

namespace ET
{
    [FriendClass(typeof(BattleActionSegment))]
    public static class BattleActionSegmentFactory
    {
        public static BattleActionSegment Create(Entity root, BattleActionSegmentInfo info)
        {
            if (info == null)
            {
                return null;
            }

            if (info.Target == null)
            {
                Log.Error("Inavalid Targets");
                return null;
            }
            
            var bas = root.AddChild<BattleActionSegment>();
            bas.Source = info.Source;
            bas.Target = info.Target;
            bas.Type = info.Type;
            var target = bas.Target;

            switch (info.Type)
            {
                case BattleActionSegemntType.MoveToTarget:
                {
                    bas.TotalTime = 0.5f;
                    Tweener tweener = BattleActionSegmentHelper.CreateAttackerToTargetTweener(info.Source, target, bas.TotalTime);
                    bas.AddComponent<BattleAction_MoveToTarget>().AddTweener(tweener);
                    var animState = BattleActionSegmentHelper.PlayAnim(info.Source, target, BattleAnimName.Run);
                    var bapa = bas.AddComponent<BattleAction_PlayAnimation>();
                    bapa.AddAnimation(animState);
                }
                    break;
                case BattleActionSegemntType.Attack:
                {
                    BattleViewHelper.ShowBattleUnitStateMsg(info.Source, info.AtkInfo);
                    var config = SkillSonConfigCategory.Instance.Get(info.SonSkillId);
                    string attackAnim = "Battle_" + config.Action;
                    var (animState, time) = BattleActionSegmentHelper.PlayAttackAnim(info.Source, info.Target, info.HurtInfoViews, attackAnim);
                    var bapa = bas.AddComponent<BattleAction_PlayAnimation>();
                    bapa.AddAnimation(animState);
                    bas.TotalTime = Mathf.Max(bapa.GetMaxTime(), time);
                }
                    break;
                case BattleActionSegemntType.MoveBack:
                {
                    bas.TotalTime = 0f;
                    var moveTime = 0.5f;
                    var bamt = bas.AddComponent<BattleAction_MoveToTarget>();
                    var bapa = bas.AddComponent<BattleAction_PlayAnimation>();

                    Tweener tweener;
                    Animancer.AnimancerState animState;
                    if (info.CastPosition != ConstCastPosition.ORIGINAL_POS)
                    {
                        tweener = BattleActionSegmentHelper.CreateMoveBackTweener(info.Source, moveTime);
                        bamt.AddTweener(tweener);
                        animState = BattleActionSegmentHelper.PlayAnim(info.Source, target, BattleAnimName.Run);
                        bapa.AddAnimation(animState);
                        bas.TotalTime =moveTime;
                    }

                    if (info.Intervener != null)
                    {
                        tweener = BattleActionSegmentHelper.CreateMoveBackTweener(info.Intervener, moveTime);
                        bamt.AddTweener(tweener);
                        animState = BattleActionSegmentHelper.PlayAnim(info.Intervener, target, BattleAnimName.Run);
                        bapa.AddAnimation(animState);
                        bas.TotalTime = moveTime;
                    }
                    
                }
                    break;
                case BattleActionSegemntType.Intervene:
                {
                    bas.TotalTime = 0.5f;
                    var bamt = bas.AddComponent<BattleAction_MoveToTarget>();

                    if (info.CastPosition != ConstCastPosition.ORIGINAL_POS)
                    {
                        var a2TTweener = BattleActionSegmentHelper.CreateAttackerToTargetTweener(info.Source, target, bas.TotalTime);
                        bamt.AddTweener(a2TTweener);
                    }

                    var i2TTweener = BattleActionSegmentHelper.CreateInterveneToTargetTweener(info.Intervener, target, bas.TotalTime);
                    bamt.AddTweener(i2TTweener);
                }
                    break;
            }
            return bas;
        }
    }
}