using UnityEngine;

namespace Fusion.Addons.SimpleKCC
{
    internal sealed class KCCCollider
    {
        public GameObject GameObject;

        public Transform Transform;

        public CapsuleCollider Collider;

        public bool IsSpawned;

        public bool IsTrigger;

        public float Radius;

        public float Height;

        public int Layer;

        public void Update(KCC kcc)
        {
            KCCSettings settings = kcc.Settings;
            if (!IsSpawned)
            {
                IsTrigger = settings.IsTrigger;
                Radius = settings.Radius;
                Height = settings.Height;
                Layer = settings.ColliderLayer;
                GameObject = new GameObject("KCCCollider");
                GameObject.layer = settings.ColliderLayer;
                Transform = GameObject.transform;
                Transform.SetParent(kcc.Transform, worldPositionStays: false);
                Transform.localPosition = Vector3.zero;
                Transform.localRotation = Quaternion.identity;
                Transform.localScale = Vector3.one;
                Collider = GameObject.AddComponent<CapsuleCollider>();
                Collider.direction = 1;
                Collider.isTrigger = settings.IsTrigger;
                Collider.radius = settings.Radius;
                Collider.height = settings.Height;
                Collider.center = new Vector3(0f, settings.Height * 0.5f, 0f);
                IsSpawned = true;
            }

            if (IsTrigger != settings.IsTrigger)
            {
                IsTrigger = settings.IsTrigger;
                Collider.isTrigger = settings.IsTrigger;
            }

            if (Radius != settings.Radius)
            {
                Radius = settings.Radius;
                Collider.radius = settings.Radius;
            }

            if (Height != settings.Height)
            {
                Height = settings.Height;
                Collider.height = settings.Height;
                Collider.center = new Vector3(0f, settings.Height * 0.5f, 0f);
            }

            if (Layer != settings.ColliderLayer)
            {
                Layer = settings.ColliderLayer;
                GameObject.layer = settings.ColliderLayer;
            }
        }

        public void Update(KCCOffline kcc)
        {
            KCCSettings settings = kcc.Settings;
            if (!IsSpawned)
            {
                IsTrigger = settings.IsTrigger;
                Radius = settings.Radius;
                Height = settings.Height;
                Layer = settings.ColliderLayer;
                GameObject = new GameObject("KCCCollider");
                GameObject.layer = settings.ColliderLayer;
                Transform = GameObject.transform;
                Transform.SetParent(kcc.Transform, worldPositionStays: false);
                Transform.localPosition = Vector3.zero;
                Transform.localRotation = Quaternion.identity;
                Transform.localScale = Vector3.one;
                Collider = GameObject.AddComponent<CapsuleCollider>();
                Collider.direction = 1;
                Collider.isTrigger = settings.IsTrigger;
                Collider.radius = settings.Radius;
                Collider.height = settings.Height;
                Collider.center = new Vector3(0f, settings.Height * 0.5f, 0f);
                IsSpawned = true;
            }

            if (IsTrigger != settings.IsTrigger)
            {
                IsTrigger = settings.IsTrigger;
                Collider.isTrigger = settings.IsTrigger;
            }

            if (Radius != settings.Radius)
            {
                Radius = settings.Radius;
                Collider.radius = settings.Radius;
            }

            if (Height != settings.Height)
            {
                Height = settings.Height;
                Collider.height = settings.Height;
                Collider.center = new Vector3(0f, settings.Height * 0.5f, 0f);
            }

            if (Layer != settings.ColliderLayer)
            {
                Layer = settings.ColliderLayer;
                GameObject.layer = settings.ColliderLayer;
            }
        }

        public void Destroy()
        {
            if (IsSpawned)
            {
                if (Collider != null)
                {
                    Collider.enabled = false;
                }

                Object.Destroy(GameObject);
                GameObject = null;
                Transform = null;
                Collider = null;
                IsSpawned = false;
                IsTrigger = false;
                Radius = 0f;
                Height = 0f;
                Layer = 0;
            }
        }
    }
}