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

public class Connection : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
{
    public GameObject[] connects;
    [ContextMenuItem("Button", "OnButton")]
    [ContextMenuItem("ButtonCheckable", "OnButtonCheckable")]
    [ContextMenuItem("ButtonCheckable3", "OnButtonCheckable3")]
    [ContextMenuItem("Switch", "OnSwitch")]
    [ContextMenuItem("Handler", "OnHandler")]
    [ContextMenuItem("HideCollider", "OnHideCollider")]
    [ContextMenuItem("ScaleToScaleX", "OnScaleToScaleX")]
    public string typeThis;// = null;//"Button". "ButtonCheckable", "ButtonCheckable3", "Switch" (крышка выключает тумблеры), "Handler", "HideCollider", "ScaleToScaleX"(115), CoverStateToCoverState 0701 0702,
    void OnButton() => typeThis = "Button";
    void OnButtonCheckable() => typeThis = "ButtonCheckable";
    void OnButtonCheckable3() => typeThis = "ButtonCheckable3";
    void OnSwitch() => typeThis = "Switch";
    void OnHandler() => typeThis = "Handler";
    void OnHideCollider() => typeThis = "HideCollider";
    void OnScaleToScaleX() => typeThis = "ScaleToScaleX";
    [SerializeField] private int index=0;

    private float d;//
    private DragCollider _drag;
    private Vector2 xy;
    private bool _delta = false;
    private PointerEventData data;
    Manager man;

    private void Start()
    {
        man = GameObject.Find("Manager").GetComponent<Manager>();
        xy = new Vector2(this.gameObject.transform.localPosition.x, this.gameObject.transform.localPosition.y);

        for (int i = 0; i < connects.Length; i++)
        {
            switch (typeThis)
            {
                case "Handler":
                    connects[i].gameObject.GetComponent<PolygonCollider2D>().enabled = !connects[i].gameObject.GetComponent<PolygonCollider2D>().enabled;
                    break;
                case "ScaleToScaleX":
                    _drag = connects[i].gameObject.transform.GetComponent<DragCollider>();
                    ref readonly string typeDrag = ref _drag.typeDrag;
                    if (typeDrag == "x")
                    {
                        d = connects[i].gameObject.transform.localPosition.x - xy.x;
                    }
                    else
                    {
                        d = connects[i].gameObject.transform.localPosition.y - xy.y;
                    }

                    break;
                default:
                    break;
            }

        }
    }
    private void OnMouseEnter()
    {
        for (int i = 0; i < connects.Length; i++)
        {
            switch (typeThis)
            {
                case "HideCollider":
                    if (connects[i].gameObject.GetComponent<Collider2D>() != null)
                    {
                        connects[i].gameObject.GetComponent<Collider2D>().enabled = false;
                    }
                    break;
                default:
                    break;
            }

        }
    }
    private void OnMouseExit()
    {
        for (int i = 0; i < connects.Length; i++)
        {
            switch (typeThis)
            {
                case "HideCollider":
                    if (connects[i].gameObject.GetComponent<Collider2D>() != null)
                    {
                        connects[i].gameObject.GetComponent<Collider2D>().enabled = true;
                    }
                    break;
                default:
                    break;
            }

        }
    }
    void OnMouseDown()
    {
        if(man == null) man = GameObject.Find("Manager").GetComponent<Manager>();
        if (man.mode == "scedit" || man.mode == "play")
            return;
        xy = new Vector2(this.gameObject.transform.localPosition.x, this.gameObject.transform.localPosition.y);
        for (int i = 0; i < connects.Length; i++)
        {
            switch (typeThis)
            {
                case "Button":
                    connects[i].gameObject.GetComponent<myButton>().OnDown();
                    break;
                case "ButtonCheckable":
                    connects[i].gameObject.GetComponent<ButtonCheckable>().OnCheck();
                    break;
                case "ButtonCheckable3":
                    connects[i].gameObject.GetComponent<ButtonCheckable3>().EnableSprite(index); 
                    break;
                case "Switch":
                    connects[i].gameObject.GetComponent<Switch>().setState(0);
                    Transform[] btnList = connects[i].gameObject.GetComponentsInChildren<Transform>();
                    string currentSw3Dname = connects[i].name.Substring(0, connects[i].name.Length) + "_3D";
                    GameObject currentSw3D = GameObject.Find(currentSw3Dname);
                    //Debug.Log($"currentSw3Dname {currentSw3Dname}");
                    Switch3DRotate sw3Drotate = currentSw3D.GetComponent<Switch3DRotate>();
                    sw3Drotate.RotateVertikalSwitch(2);
                    break;
                case "Handler":
                    connects[i].gameObject.GetComponent<PolygonCollider2D>().enabled=!connects[i].gameObject.GetComponent<PolygonCollider2D>().enabled;
                    break;
                case "CoverStateToCoverState":
                    //Debug.Log($"connects[i].gameObject.GetComponent<CoverState>() {connects[i].gameObject.GetComponent<CoverState>() != null}");
                    connects[i].gameObject.GetComponent<CoverState>().switchOn(); 
                    break;
                case "ScaleToScaleX":
                    ref readonly string typeDrag = ref _drag.typeDrag;
                    ref readonly bool _delta2 = ref _drag._delta;
                    _delta = _delta2;

                    if (typeDrag == "x" && !_delta)
                    {
                        d = connects[i].gameObject.transform.localPosition.x - xy.x;
                    }
                    else if (typeDrag == "y" && !_delta)
                    {
                        d = connects[i].gameObject.transform.localPosition.y - xy.y;
                        //Debug.Log($"d = {d}");
                    }

                    break;
                default:
                    break;
            }
            
        }

    }
    void OnMouseUp()
    {
        if (man.mode == "scedit" || man.mode == "play")
            return;
        for (int i = 0; i < connects.Length; i++)
        {
            switch (typeThis)
            {
                case "Button":
                    connects[i].gameObject.GetComponent<myButton>().OnUp();
                    break;
               default:
                    break;
            }
        }

    }
    public void OnBeginDrag(PointerEventData eventData)
    {
        if (man.mode == "scedit" || man.mode == "play")
            return;
        xy = new Vector2(this.gameObject.transform.localPosition.x, this.gameObject.transform.localPosition.y);

        for (int i = 0; i < connects.Length; i++)
        {
            switch (typeThis)
            {
                case "ScaleToScaleX":
                    ref readonly string typeDrag = ref _drag.typeDrag;
                    ref readonly bool _delta2 = ref _drag._delta;
                    _delta = _delta2;

                    if (typeDrag == "x" && !_delta)
                    {
                        d = connects[i].gameObject.transform.localPosition.x - xy.x;
                    }
                    else if (typeDrag == "y" && !_delta)
                    {
                        d = connects[i].gameObject.transform.localPosition.y - xy.y;
                    }

                    break;
                default:
                    break;
            }

        }
    }

    public void Update()
    {
        if (man.mode == "scedit" || man.mode == "play")
            return;
        for (int i = 0; i < connects.Length; i++)
        {
            switch (typeThis)
            {
                case "ScaleToScaleX":
                    if (connects[i].gameObject.transform.GetComponent<IndexH>() != null)
                    {
                        GameObject frame = connects[i].gameObject.transform.GetComponent<IndexH>().frame;
                        if (frame.GetComponent<ScaleToText>() != null || frame.GetComponent<ScaleToText4>() != null)
                        {
                            bool point = (frame.GetComponent<ScaleToText>() != null) ? frame.GetComponent<ScaleToText>().point : frame.GetComponent<ScaleToText4>().point;
                            bool isDrag = this.GetComponent<DragCollider>().isDrag;
                            if (point || isDrag)
                            {
                                OnDrag(data);
                                //Debug.Log($"point in connection = {point}");
                            }
                            else
                            {
                                OnBeginDrag(data);
                            }
                        }
                    }


                    break;
                default:
                    break;
            }
        }
    }
    public void OnDrag(PointerEventData eventData)
    {
        if (man.mode == "scedit" || man.mode == "play")
            return;
        for (int i = 0; i < connects.Length; i++)
        {
            switch (typeThis)
            {
                case "ScaleToScaleX":
                    ref readonly bool clamp = ref _drag.clamp;
                    ref readonly string typeDrag = ref _drag.typeDrag;
                    ref readonly float dragMin = ref _drag.dragMin;
                    ref readonly float dragMax = ref _drag.dragMax;

                    /*GameObject frame = connects[i].gameObject.transform.GetComponent<IndexH>().frame;
                    bool point = (frame.GetComponent<ScaleToText4>()!=null) ? frame.GetComponent<ScaleToText4>().point:false;*/
                    //ref readonly Vector2 dd = ref _drag.dd;
                    ref bool _delta2 = ref _drag._delta;

                    //Debug.Log($"OnDrag in connection = true");
                    if (clamp && typeDrag == "x")
                    {
                        //Debug.Log($"clamp && typeDrag == x");
                        if (this.gameObject.transform.localPosition.x + d >= dragMin && this.gameObject.transform.localPosition.x + d <= dragMax)
                        {
                            /*if(point) d = -2532;
                            Debug.Log($" point = {point}");
                            Debug.Log($" d = {d}");*/
                            _delta = false;
                            connects[i].gameObject.transform.localPosition = new Vector3(this.gameObject.transform.localPosition.x + d, connects[i].gameObject.transform.localPosition.y, connects[i].gameObject.transform.localPosition.z);
                            //Debug.Log($" connects[i].gameObject.transform.localPosition = {connects[i].gameObject.transform.localPosition}");
                        }
                        else
                        {
                            _delta = true;
                        }

                    }
                    else if (clamp && typeDrag == "y")
                    {
                        if (this.gameObject.transform.localPosition.y + d >= dragMin && this.gameObject.transform.localPosition.y + d <= dragMax)
                        {
                            _delta = false;
                            connects[i].gameObject.transform.localPosition = new Vector3(connects[i].gameObject.transform.localPosition.x, this.gameObject.transform.localPosition.y + d, connects[i].gameObject.transform.localPosition.z);
                        }
                        else
                        {
                            _delta = true;
                        }

                    }
                    _delta2 = _delta;
                    xy = new Vector2(this.gameObject.transform.localPosition.x, this.gameObject.transform.localPosition.y);
                    //connects[i].gameObject.transform.localPosition = new Vector3(this.gameObject.transform.localPosition.x + d, connects[i].gameObject.transform.localPosition.y, connects[i].gameObject.transform.localPosition.z);
                    break;
                default:
                    break;
            }
        }
    }

    public void OnEndDrag(PointerEventData eventData)
    {
        
    }
}