WebViewWrapper.swift

final class WebViewWrapper : UIViewRepresentable {
    @ObservedObject var webViewStateModel: WebViewStateModel //action two way binding 
    let action: ((_ navigationAction: WebView.NavigationAction) -> Void)? //delegates callback
    
    let request: URLRequest
      
    init(webViewStateModel: WebViewStateModel,
    action: ((_ navigationAction: WebView.NavigationAction) -> Void)?,
    request: URLRequest) {
        self.action = action
        self.request = request
        self.webViewStateModel = webViewStateModel
    }
    
    
    func makeUIView(context: Context) -> WKWebView  {
        let view = WKWebView()
        view.navigationDelegate = context.coordinator
        view.load(request)
        return view
    }
      
    func updateUIView(_ uiView: WKWebView, context: Context) {
        if uiView.canGoBack, webViewStateModel.goBack {
            uiView.goBack() //go back if user tapped go back and last page is available 
            webViewStateModel.goBack = false
        }
    }
    
    func makeCoordinator() -> Coordinator {
        return Coordinator(action: action, webViewStateModel: webViewStateModel)
    }