using Sirenix.OdinInspector;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using UnityEditor;
using UnityEngine;

[ExecuteInEditMode]
public class SimpleMoveItem : SerializedMonoBehaviour
{
    [DictionaryDrawerSettings()]
    public Dictionary<GameObject, Transform> moveObjs = new Dictionary<GameObject, Transform>();

    [LabelText("相对移动位置")]
    public Vector3 localMovePos = new Vector3(0, 0, 0);
    [LabelText("相对旋转角度")]
    public float rotAngle = 0;
    [LabelText("运行时长")]
    public float duration = 1;

    public void SetInitState(bool reverse)
    {
        foreach (var item in moveObjs)
        {
            if (!reverse)
            {
                item.Key.transform.position = item.Value.position;
                item.Key.transform.rotation = item.Value.rotation;
            }
            else
            {
                item.Key.transform.rotation = item.Value.rotation;
                item.Key.transform.RotateAround(item.Value.position, item.Value.TransformDirection(localMovePos), rotAngle);
                item.Key.transform.position = item.Value.position + item.Value.TransformDirection(localMovePos);
            }
        }
    }
    public void SetFinishedState(bool reverse)
    {
        foreach (var item in moveObjs)
        {
            if (reverse)
            {
                item.Key.transform.position = item.Value.position;
                item.Key.transform.rotation = item.Value.rotation;
            }
            else
            {
                item.Key.transform.rotation = item.Value.rotation;
                item.Key.transform.RotateAround(item.Value.position, item.Value.TransformDirection(localMovePos), rotAngle);
                item.Key.transform.position = item.Value.position + item.Value.TransformDirection(localMovePos);
            }
        }
    }

#if UNITY_EDITOR

    [FoldoutGroup("快捷编辑", Order = -1)]
    [Button("刷新物体及锚点")]
    public void AddSelectObj()
    {
        if (Selection.gameObjects.Length == 0) return;

        foreach (var item in moveObjs)
        {
            if (item.Value != null)
            {
                DestroyImmediate(item.Value.gameObject);
            }
        }

        moveObjs.Clear();

        foreach (var item in Selection.gameObjects)
        {
            GameObject tmpItem = new GameObject("锚点_" + item.gameObject.name);
            tmpItem.transform.parent = transform;
            tmpItem.transform.position = item.transform.position;
            tmpItem.transform.rotation = item.transform.rotation;

            moveObjs.Add(item, tmpItem.transform);
        }
    }

    [HideInInspector]
    public bool isShowPath = true;
    public bool ShowPath { get { return isShowPath; } }


    private void OnDrawGizmos()
    {
        DrawPathLine();
    }

    public void DrawPathLine()
    {
        if (!isShowPath) return;

        foreach (var item in moveObjs)
        {
            Gizmos.color = Color.yellow;
            Gizmos.DrawLine(item.Value.position, item.Value.position + item.Value.TransformDirection(localMovePos));
        }
    }
    /// <summary>
    /// 销毁所有子级信息
    /// </summary>
    /// <param name="item"></param>
    private void DestroyChild(Transform item)
    {
        if (item.childCount == 0) return;

        for (int i = item.childCount - 1; i >= 0; i--)
        {
            DestroyImmediate(item.GetChild(i).gameObject);
        }
    }

    [Button("Play")]
    public void Play()
    {
        isPlaying = true;
        timer = 0;
    }

    [HideInInspector]
    public bool isPlaying;

    private void OnEnable()
    {
        EditorApplication.update += EditorUpdate;

        Selection.selectionChanged += SelectionChanged;
    }
    private void OnDisable()
    {
        EditorApplication.update -= EditorUpdate;
        Selection.selectionChanged -= SelectionChanged;
    }

    private float timer = 0;
    void EditorUpdate()
    {
        if (!isPlaying) return;

        foreach (var item in moveObjs)
        {
            item.Key.transform.position = Vector3.Lerp(item.Value.position, item.Value.position + item.Value.TransformDirection(localMovePos), timer / duration);
            item.Key.transform.rotation = item.Value.rotation;

            item.Key.transform.RotateAround(item.Value.position, item.Value.TransformDirection(localMovePos), rotAngle * timer / duration);
        }
        timer += Time.deltaTime;

        if (timer > duration)
        {
            timer = 0;
            isPlaying = false;
            foreach (var item in moveObjs)
            {
                item.Key.transform.position = item.Value.position;
                item.Key.transform.rotation = item.Value.rotation;
            }
        }
    }

    void SelectionChanged()
    {
        if (Selection.gameObjects.Contains(this.gameObject))
        {
            isShowPath = true;
        }
        else
        {
            isShowPath = false;
        }
    }
#endif
}