using System;
using UnityEngine;

namespace UniVRM10
{
    public enum VRM10SpringBoneColliderTypes
    {
        Sphere,
        Capsule,
    }

    [Serializable]
    public class VRM10SpringBoneCollider : MonoBehaviour
    {
        public VRM10SpringBoneColliderTypes ColliderType;

        /// <summary>bone local position</summary>
        public Vector3 Offset;

        [Range(0, 1.0f)]
        public float Radius;

        /// <summary>bone local position</summary>
        public Vector3 Tail;

        public static int SelectedGuid;

        public bool IsSelected => GetInstanceID() == SelectedGuid;

        public void OnDrawGizmosSelected()
        {
            Gizmos.matrix = transform.localToWorldMatrix;
            switch (ColliderType)
            {
                case VRM10SpringBoneColliderTypes.Sphere:
                    Gizmos.color = Color.magenta;
                    Gizmos.DrawWireSphere(Offset, Radius);
                    break;

                case VRM10SpringBoneColliderTypes.Capsule:
                    Gizmos.color = new Color(1.0f, 0.1f, 0.1f);
                    Gizmos.DrawWireSphere(Offset, Radius);
                    Gizmos.DrawWireSphere(Tail, Radius);
                    Gizmos.DrawLine(Offset, Tail);
                    break;
            }
        }

        public string GetIdentificationName()
        {
            var index = 0;
            var count = 0;

            var colliders = transform.GetComponents<VRM10SpringBoneCollider>();
            foreach (var collider in colliders)
            {
                if (collider.ColliderType == ColliderType)
                {
                    count++;
                }
                if (collider == this)
                {
                    index = count;
                }
            }

            if (count > 1)
            {
                return ColliderType.ToString() + index.ToString();
            }
            else
            {
                return ColliderType.ToString();
            }
        }
    }
}