using UnityEngine;
using System.Collections;
using Wing.Gizmos;
using UnityEngine.UI;

public class Sample : MonoBehaviour
{
    public GameObject Target;
    private GameObject mCurrentGizmos;

    public Dropdown GizmosTypes;
    public Toggle SpanToggle;
    public InputField Precision;
    public GameObject SnapPanel;

    private EGizmosType mGizmosType = EGizmosType.Move;
    private bool mMoveInitialed = false;
    private bool mScaleInitialed = false;
    private bool mRotateInitialed = false;

    // Use this for initialization
    void Start()
    {
        onTypeChanged((int)mGizmosType);
        onSnapEnableChanged(false);

        GizmosTypes.onValueChanged.AddListener(onTypeChanged);
        SpanToggle.onValueChanged.AddListener(onSnapEnableChanged);
        Precision.onValueChanged.AddListener(onPrecisionChanged);
    }

    private void onTypeChanged(int id)
    {
        mGizmosType = (EGizmosType)id;
        SetGizmos(mGizmosType);

        switch (mGizmosType)
        {
            case EGizmosType.Move:
                Precision.text = SnapFactory.Instance.Get(ESnapType.Move).Precision.ToString();
                break;
            case EGizmosType.Scale:
                Precision.text = SnapFactory.Instance.Get(ESnapType.Scale).Precision.ToString();
                break;
            case EGizmosType.Rotate:
                Precision.text = SnapFactory.Instance.Get(ESnapType.Rotate).Precision.ToString();
                break;
            default:
                break;
        }
    }

    private void onPrecisionChanged(string value)
    {
        float result = 0;
        if (float.TryParse(value, out result))
        {
            switch (mGizmosType)
            {
                case EGizmosType.Move:
                    SnapFactory.Instance.Get(ESnapType.Move).Precision = result;
                    break;
                case EGizmosType.Scale:
                    SnapFactory.Instance.Get(ESnapType.Scale).Precision = result;
                    break;
                case EGizmosType.Rotate:
                    SnapFactory.Instance.Get(ESnapType.Rotate).Precision = result;
                    break;
                default:
                    break;
            }
        }
    }

    private void onSnapEnableChanged(bool value)
    {
        SnapFactory.Instance.Get(ESnapType.Move).Enable = value;
        SnapFactory.Instance.Get(ESnapType.Scale).Enable = value;
        SnapFactory.Instance.Get(ESnapType.Rotate).Enable = value;

        SnapPanel.SetActive(value);
    }

    // Update is called once per frame
    void Update()
    {

    }

    #region Gizmos

    private void SetGizmos(EGizmosType gtype)
    {
        if (mCurrentGizmos != null)
        {
            mCurrentGizmos.SetActive(false);
        }

        switch (gtype)
        {
            case EGizmosType.Move:
                mCurrentGizmos = SetMove();
                break;
            case EGizmosType.Scale:
                mCurrentGizmos = SetScale();
                break;
            case EGizmosType.Rotate:
                mCurrentGizmos = SetRotate();
                break;
            default:
                break;
        }

        if (mCurrentGizmos != null)
        {
            mCurrentGizmos.transform.position = Target.transform.position;
            mCurrentGizmos.transform.localRotation = Target.transform.localRotation;
            mCurrentGizmos.SetActive(true);
        }
    }

    private GameObject SetMove()
    {
        var move = GizmosManager.Instance.GetSingleMove();
        if (!mMoveInitialed)
        {
            move.OnMove += (dx, dy, dz) =>
            {
                Target.transform.Translate(dx, dy, dz);
            };
            mMoveInitialed = true;
        }

        return move.gameObject;
    }

    private GameObject SetScale()
    {
        var scale = GizmosManager.Instance.GetSingleScale();
        if (!mScaleInitialed)
        {
            scale.OnScale += (dx, dy, dz) =>
            {
                Target.transform.localScale += new Vector3(dx, dy, dz);
            };
            mScaleInitialed = true;
        }

        return scale.gameObject;
    }

    private GameObject SetRotate()
    {
        var rotate = GizmosManager.Instance.GetSingleRotate();
        rotate.EnableFreeRotate = true;
        if (!mRotateInitialed)
        {
            rotate.OnRotate += (dx, dy, dz) =>
            {
                Target.transform.Rotate(new Vector3(dx, dy, dz));
            };
            mRotateInitialed = true;
        }
        return rotate.gameObject;
    }

    #endregion
}