using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using JC.Unity.UI;
using JC.Unity;

public class MouseConfirm : MonoBehaviour
{
    Selectable _targetSelectable;
    Selectable _selfSelectable;
    
    void Update()
    {
        if (!SB_EventSystem.ins.simulateMouseIsAwaked) {
            Hide();
            return;
        }
        if (!_targetSelectable) {
            Hide();
        }
    }

    void Show() {
        if (!gameObject.activeSelf) gameObject.SetActive(true);
    }

    void Hide() {
        ResumeTarget();
        _targetSelectable = null;
        if (gameObject.activeSelf) gameObject.SetActive(false);
    }

    public void OnClikc_Confirm()
    {
        try
        {
            if (_targetSelectable && _targetSelectable.interactable) {
                Button btn = _targetSelectable.GetComponent<Button>();
                btn.onClick.Invoke();
            }
        }
        catch (System.Exception e)
        {
            Debug.LogError(e.Message);
            Debug.LogError(e.StackTrace);
        }
        Hide();
    }

    public void SetSelectable(Selectable selectable) {
        if (!selectable) return;
        if (selectable == _targetSelectable) return;
        if (selectable == _selfSelectable) return;

        ResumeTarget();

        Button btn = selectable.GetComponent<Button>();
        if (!btn) return;
        if (!btn.interactable) return;

        _targetSelectable = selectable;

        RectTransform rtf = _targetSelectable.transform as RectTransform;
        _btnTransition = btn.transition;
        if (btn.transition == Selectable.Transition.ColorTint) { //变色和放大
            Vector3 pos = RectTransformUtils.GetPositionByPivot(rtf, Vector2.one * 0.5f);
            rtf.pivot = Vector2.one * 0.5f;
            rtf.position = pos;
            _targetlocalScale = rtf.localScale;
            rtf.localScale = rtf.localScale * 1.15f;
            _targetColor = _targetSelectable.targetGraphic.color;
            var newcolor = _targetSelectable.targetGraphic.color;
            newcolor.a = 0.6f;
            _targetSelectable.targetGraphic.color = newcolor;
        } else if (btn.transition == Selectable.Transition.None) { //则使用自定义变色和放大
            _mouseButton = rtf.GetComponent<MouseButton>();
            if (_mouseButton) _mouseButton.OnSelect();
        }

        Show();
    }

    Vector3 _targetlocalScale;
    Color _targetColor;
    Selectable.Transition _btnTransition;
    MouseButton _mouseButton;
    void ResumeTarget()
    {
        if (_targetSelectable) {
            if (_btnTransition == Selectable.Transition.ColorTint) {
                _targetSelectable.transform.localScale = _targetlocalScale;
                _targetSelectable.targetGraphic.color = _targetColor;
            } else if (_btnTransition == Selectable.Transition.None) {
                if (_mouseButton) _mouseButton.OnExit();
            }
        }
        _mouseButton = null;
    }
}