using Code.Scripts.Gameplay.Weapon;
using Gameplay.Performance;
using Gameplay.Pool;
using Gameplay.Unit;
using Gameplay.Unit.Data;

namespace Gameplay.Weapon
{
    using cfg.WeaponCfg;
    using Character;
    using Framework;
    using Common;
    using Effect;
    using UnityEngine;

    public class ViewWeapon
    {

        public readonly Character owner;

        public readonly DataWeapon rawConfig;

        public readonly GameObject rootObj;

        public readonly Transform fireTrans;
        
        public readonly WeaponAnim weaponAnim;
        
        public readonly Transform weaponBone;

        // private readonly List<WeaponLine> _lines;

        public ViewWeapon(Character owner)
        {
            this.owner = owner;
            var weaponId = owner.runtimeData.configData.weaponId;
            rawConfig = TableManager.Instance.Tables.WeaponConfig.Get(weaponId);

            // 找到骨骼
            var parentPointName = rawConfig.ParentPointName;
            if (string.IsNullOrEmpty(parentPointName))
            {
                DebugUtil.LogError("武器配置错误: {0}, 没有ParentPointName", weaponId);
                parentPointName = "Grip_point01";
            }
            var bone = owner.Skeleton.GetBone(parentPointName);
            if (bone == null)
            {
                owner.LogError("找不到骨骼:" + rawConfig.ParentPointName);
                return;
            }
            weaponBone = bone.transform;

            // 绑定武器
            rootObj = bone.transform.GetChild(0).gameObject;
            weaponAnim = new WeaponAnim(rootObj);
            
            // 美术约定从该节点取fire点
            fireTrans = owner.Skeleton.GetBone("Fire");

            // _lines = new List<WeaponLine>();
        }

        public void OpenFire(GameUnit enemy)
        {
            var groundEffectId = GLConfig.Inst.data.GroundFireEffectId;
            if (groundEffectId > 0)
            {
                var firePos = fireTrans.position;
                firePos.y = 0.1f;
                var rot = owner.Node.GameObject.transform.rotation;
                EffectManager.instance.PlayEffectById(groundEffectId, firePos, rot);
            }
            
            if (rawConfig.FireAudioId.Count > 0)
            {
                var fireAudioId = rawConfig.FireAudioId[Random.Range(0, rawConfig.FireAudioId.Count)];
                _ = AudioManager.Instance.PlayAudio(fireAudioId, fireTrans.position);
            }

            var fireEffectId = rawConfig.FireEffectId;
            if (fireEffectId > 0)
            {
                var rot = owner.Node.GameObject.transform.rotation;
                EffectManager.instance.PlayEffectById(fireEffectId, fireTrans.position, rot);
            }

            var lineEffectId = rawConfig.FlyEffectId;
            if (lineEffectId > 0 && PerformanceManager.instance.data.enableBulletTail)
            {
                var flySpeed = rawConfig.BulletFlySpeed;
                if (flySpeed <= 0)
                {
                    DebugUtil.LogError($"武器配置错误: {rawConfig.ID}, 没有FlySpeed");
                    flySpeed = 100;
                }
                _EmitLine(fireTrans, enemy.Node.GameObject.transform, flySpeed);
            }
            
            weaponAnim.PlayAnim(rawConfig.FireAnimName);
        }

        private void _EmitLine(Transform start,
            Transform end,
            float flySpeed)
        {
            var endPos = end.position;
            var startPos = start.position;
            endPos.y = startPos.y * 0.5f;
            var toEnd = endPos - startPos;
            var angle = Vector3.SignedAngle(Vector3.forward, toEnd, Vector3.up);
            
            var effect = EffectManager.instance.PlayEffectById(rawConfig.FlyEffectId, startPos, Quaternion.Euler(0, angle, 0));
            var totalDistance = toEnd.magnitude;
            var flyLogic = ObjPoolManager.instance.Get<BulletFlyLogic>();
            var flyTime = totalDistance / flySpeed;
            flyLogic.Ctor(startPos, endPos, flyTime);
            effect.AddLogic(flyLogic);

            #if UNITY_EDITOR
            Debug.DrawLine(startPos, endPos, Color.red, flyTime);
            #endif
            
            // var line = ObjPoolManager.instance.Get<WeaponLine>();
            // // line.effect.transform.LookAt(end, Vector3.up);
            // var position = end.position;
            // var endPos = position;
            // var position1 = start.position;
            // endPos.y = position1.y;
            // var toEnd = endPos - position1;
            // var angle = Vector3.SignedAngle(Vector3.forward, toEnd, Vector3.up);
            //
            // line.effect = EffectManager.instance.PlayEffectById(rawConfig.FlyEffectId, position1, Quaternion.Euler(0, angle, 0));
            //
            // line.StartFly(position, flySpeed);
            // _lines.Add(line);
        }

        public static void ShowHitEffect(GameUnit enemy,
            bool isCritical,
            DataWeapon rawConfig,
            Transform senderTrans)
        {
            var effectId = isCritical ? rawConfig.CriticalHitEffectId : rawConfig.HitEffectId;
            if (effectId <= 0)
                return;
            var hitPoints = GetPoints(enemy);
            if (hitPoints == null)
            {
                DebugUtil.LogError("暂未处理的类型:{0}  name: {1}", enemy.gameunitType, enemy.Node.GameObject.name);
                return;
            }
            var points = isCritical ? hitPoints.m_CriticalPoints : hitPoints.m_OtherPoints;
            var randomPoint = points[Random.Range(0, points.Length)];
            var sender = senderTrans;
            var senderPos = sender.position;
            var position = randomPoint.position;
            var toSenderPos = senderPos - position;
            toSenderPos.y = 0;
            var angle = Vector3.SignedAngle(Vector3.forward, toSenderPos, Vector3.up);
            var rot = Quaternion.Euler(0, angle, 0);
            var effectObj = EffectManager.instance.PlayEffectById(effectId, position, rot);
            // effectObj.transform.LookAt(fireTrans, Vector3.up);
        }

        public static CmpCharacterEffectPoints GetPoints(GameUnit enemy)
        {
            switch (enemy.gameunitType)
            {
                case EGameUnitType.Character:
                {
                    if (enemy.RawAnimator == null) return null;
                    var cmp = enemy.RawAnimator.GetComponent<CmpCharacterEffectPoints>();
                    if (cmp == null)
                    {
                        DebugUtil.LogError("{0} 上未挂载:CmpCharacterEffectPoints 节点", enemy.Node.GameObject.name);
                        cmp = enemy.RawAnimator.gameObject.AddComponent<CmpCharacterEffectPoints>();
                        cmp.m_CriticalPoints = new Transform[1];
                        cmp.m_CriticalPoints[0] = enemy.Node.GameObject.transform;
                        cmp.m_OtherPoints = new Transform[1];
                        cmp.m_OtherPoints[0] = enemy.Node.GameObject.transform;
                    }
                    return cmp;
                }
                case EGameUnitType.Vehicle:
                {
                    var getCmp = enemy.Node.GameObject.GetComponent<CmpCharacterEffectPoints>();
                    if (getCmp != null)
                    {
                        return getCmp;
                    }
                    var cmp = enemy.Node.GameObject.AddComponent<CmpCharacterEffectPoints>();
                    cmp.m_CriticalPoints = new Transform[1];
                    cmp.m_CriticalPoints[0] = enemy.Node.GameObject.transform;
                    cmp.m_OtherPoints = new Transform[1];
                    cmp.m_OtherPoints[0] = enemy.Node.GameObject.transform;
                    return cmp;
                }
            }
            return null;

        }

        public void ViewUpdate(float dt)
        {
            // for (var i = 0; i < _lines.Count; ++i)
            // {
            //     var line = _lines[i];
            //     line.ViewUpdate(dt);
            //     if (line.needRemove)
            //     {
            //         ObjPoolManager.instance.Return(line);
            //         line.DestroyEffect();
            //         _lines.RemoveAt(i);
            //         --i;
            //     }
            // }
        }

        // public void Destroy()
        // {
        //     for (var i = 0; i < _lines.Count; ++i)
        //     {
        //         var line = _lines[i];
        //         line.DestroyEffect();
        //     }
        //     _lines.Clear();
        // }

        public void Hide()
        {
            if (weaponBone == null) return;
            weaponBone.localScale = Vector3.zero;
        }

        public void Show()
        {
            if (weaponBone == null) return;
            weaponBone.localScale = Vector3.one;
        }
    }
}