import 'dart:ffi';

import 'package:web_synchronization_tool/windows/windowsJs.dart';
import 'package:webview_windows/webview_windows.dart';

class SynchronizationWebTool{

  // 私有构造函数
  SynchronizationWebTool._();
  // 私有静态变量，保存类的唯一实例
  static SynchronizationWebTool? _instance;

  // 公开的静态方法，返回类的唯一实例
  static SynchronizationWebTool getInstance() {
    _instance ??= SynchronizationWebTool._();
    return _instance!;
  }

  bool webSync = false;

  /// 主控
  late WebviewController mainController;
  /// 受控
  List<WebviewController> _childControllers = [];

  setChildController(List<WebviewController> childControllers){

    for (var controller in childControllers) {
      controller.addScriptToExecuteOnDocumentCreated(WindowsJs.clickEventJs);
      // controller.addScriptToExecuteOnDocumentCreated(WindowsJs.onloadZoom(90));
    }

    mainController = childControllers.first;
    _childControllers = childControllers.sublist(1,10);

    // 滚动监听
    mainController.addScriptToExecuteOnDocumentCreated(WindowsJs.scrollEventJs);

    mainController.webMessage.listen((event) {
      print('mainController listen -- $event');

      if (!webSync) return;

      if (event['click'] != null) {
        Map click = event['click'];
        double x = (click['x'] as int).toDouble();
        double y = (click['y'] as int).toDouble();

        clickSynchronization(x, y);
      }

      if (event['scroll']  != null ) {
        int y = event['y'] as int;
        scrollSynchronization(y);
      }

    });

  }

  List<WebviewController> get childController{
    return _childControllers;
  }

  /// 点击同步
  clickSynchronization(double x,double y){
    for (var controller in childController) {
      controller.executeScript(WindowsJs.clickJs(x, y));
    }
  }

  /// 滚动同步
  scrollSynchronization(int y){
    for (var controller in childController) {
      controller.executeScript(WindowsJs.scrollTo(y) );
    }
  }

  /// 输入
  input(int value){
    mainController.executeScript(WindowsJs.inputJs(value));
    for (var controller in childController) {
      controller.executeScript(WindowsJs.inputJs(value));
    }
  }

}