using UnityEngine;
using System.Collections;
using System.Collections.Generic;

namespace Wing.Gizmos
{
    public class GizmosAxis : MonoBehaviour
    {
        private GizmosBase _coordinate;
        private int m_iLayer;
        private bool mSelected = false;
        // Use this for initialization
        void Awake()
        {
            _coordinate = transform.parent.parent.GetComponent<GizmosBase>();
            m_iLayer = LayerMask.NameToLayer(Settings.GizmosLayerName);
            gameObject.layer = m_iLayer;
        }

        // Update is called once per frame
        void Update()
        {
            if (mSelected)
            {
                if (!Input.GetMouseButton(0))
                {
                    mSelected = false;
                    StartCoroutine(delayRelease());
                }
                else
                {
                    _coordinate.OnMouseDrag(gameObject);
                }
            }
            else if(Input.GetMouseButtonDown(0))
            {
                Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                RaycastHit hit;
                if (Physics.Raycast(ray, out hit, 1000, 1 << m_iLayer))
                {
                    if (hit.collider.gameObject == gameObject)
                    {
                        _coordinate.OnMouseEnter(gameObject);
                        _coordinate.OnMouseDown(gameObject);
                        mSelected = true;
                    }
                }
            }
        }

        IEnumerator delayRelease()
        {
            yield return new WaitForEndOfFrame();

            _coordinate.OnMouseExit(gameObject);
            _coordinate.OnMouseUp(gameObject);
        }
    }

}