using System;
using UnityEngine;

namespace Game
{
    public class SkillHitInfo
    {
        public AttackBehaviour SkillParam;
        public float AttackRate;
        public float StunkRate;
        public float ExecutekRate;
        public int OwnerEntity;
        public int HitEntity; //0为非实体对象
        public Vector3 HitPos;
        public Vector3 HitDir;
        public bool IsRight;
        public bool IsDealed; //已经结算
        public string SkillId; //是否技能造成的伤害
        public uint Performance; //性能tag的mask
        public int StaggerLevel;
        public bool IsBreak;
        public EHitType HitType;
    }

    public class ClipAttack : TimelineClipBase
    {
        private AttackClip _mRealAsset;

        public override void OnEnter()
        {
            _mRealAsset = Asset as AttackClip;
        }

        public override void OnStay()
        {
            var skill = Owner.skill;
            var castDir = Owner.skill.CastDir;
            castDir = new Vector3(castDir.x, 0, castDir.z); //忽略y
            var param = _mRealAsset.template;

            void DealFunc(GameObject hitGo, Vector3 hitPos)
            {
                var hitEntityId = 0;
                EntityInfo info;
                if (hitGo.TryGetComponent<EntityInfo>(out info))
                {
                    hitEntityId = info.entityId;
                    if (Util.GetEntity(hitEntityId).Team() == Owner.Team())
                    {
                        return;
                    }
                }

                var hitKey = new Tuple<int, int>(hitEntityId, param.hitId);
                if (!Owner.skill.SkillHitInfo.ContainsKey(hitKey))
                {
                    var skillHitInfo = new SkillHitInfo()
                    {
                        SkillParam = param,
                        AttackRate = 1,
                        StunkRate = 1,
                        ExecutekRate = 1,
                        OwnerEntity = Owner.ID(),
                        HitEntity = hitEntityId,
                        HitPos = hitPos,
                        HitDir = castDir,
                        IsRight = Owner.move.IsRight,
                        IsDealed = false,
                        SkillId = skill.SkillId.Value,
                        Performance = 0,
                        StaggerLevel = param.staggerLevel,
                        IsBreak = true,
                        HitType = param.hitType,
                    };
                    if (!string.IsNullOrEmpty(skillHitInfo.SkillId))
                    {
                        var skillCfg = Util.GetSkillMasterConfigData(skillHitInfo.SkillId);
                        if (skillCfg != null)
                        {
                            var featureSkill = skillCfg.GetFeatureSkill();
                            skillHitInfo.AttackRate = featureSkill.AttackRate;
                            skillHitInfo.StunkRate = featureSkill.StunRate;
                            skillHitInfo.ExecutekRate = featureSkill.ExecuteRate;
                        }
                    }

                    Owner.skill.SkillHitInfo[hitKey] = skillHitInfo;
                }
            }

            if (param.isRaycast)
            {
                var posPre = Owner.PosPre();
                var pos = Owner.Pos();
                var distance = Vector3.Distance(pos, posPre);
                var dir = pos - posPre;

                var hitInfos = Physics.RaycastAll(posPre, dir, distance, UtilPhysics.LayerMaskHit);
                Util.Draw(posPre, pos, Color.green);

                foreach (var hitInfo in hitInfos)
                {
                    var hitGo = hitInfo.transform.gameObject;
                    DealFunc(hitGo, hitInfo.point);
                }
            }
            else
            {
                var rot = Quaternion.FromToRotation(Vector3.right, castDir);
                var toGridSize = 16f / 64f;
                var center = rot * param.center * toGridSize + Owner.Pos();
                var halfExtents = param.halfExtents * toGridSize;

                var hitInfos = Physics.BoxCastAll(center, halfExtents, castDir, rot, 0,
                    layerMask: UtilPhysics.LayerMaskHit);
                Util.DrawBox(center, halfExtents, castDir, Color.green);

                foreach (var hitInfo in hitInfos)
                {
                    var hitGo = hitInfo.transform.gameObject;
                    DealFunc(hitGo, hitInfo.point);
                }
            }
        }

        public override void OnLeave()
        {
        }
    }
}