import 'dart:async';
import 'dart:developer';
import 'dart:isolate';

import 'package:vm_service/vm_service.dart' as vm;
import 'package:vm_service/vm_service_io.dart' as vmi;

void main() async {
  final serverWebSocketUriString =
      (await Service.getInfo()).serverWebSocketUri.toString();
  final vmService = await vmi.vmServiceConnectUri(serverWebSocketUriString);

  // Documented to subscribe to:
  //   IsolateStart, IsolateRunnable, IsolateExit,
  //   IsolateUpdate, IsolateReload, ServiceExtensionAdded
  vmService.onIsolateEvent.listen((event) {
    print('onIsolateEvent: ${event}'); // <-- never called
  });

  final status = await vmService.streamListen(vm.EventStreams.kIsolate);
  print(status.json); // {type: Success}

  final isolateId = Service.getIsolateID(Isolate.current)!;
  startHotReloadTimer(vmService, isolateId);
}

Timer startHotReloadTimer(vm.VmService vmService, String isolateId) =>
    Timer.periodic(const Duration(seconds: 5), (_) async {
      final response = await vmService.reloadSources(isolateId, force: true);
      // Same issue when doing:
      // final response = await vmService.reloadSources(isolateId);
      
      print('response: $response'); // response: [ReloadReport success: true]
      someMethod();
    });

void someMethod() {
  print('String I manipulate manually to verify the code have been reloaded');
}