init method

Future<void> init({ CallingConfiguration? configuration, })

Initialize the service: cache logged-in user, register SDK listeners, and initialize the Calls SDK. Safe to call multiple times — will no-op if already initialized.

Implementation

Future<void> init({CallingConfiguration? configuration}) async {
  if (_initialized) return;
  _configuration = configuration;
  _loggedInUser = await CometChatUIKit.getLoggedInUser();

  assert(
    _loggedInUser != null,
    'CallEventService.init(): No logged-in user. '
    'Call CometChatUIKit.login() before initializing CallEventService.',
  );

  // Initialize the Calls SDK and await completion
  final settings = CometChatUIKit.authenticationSettings;
  assert(
    settings?.appId != null && settings?.region != null,
    'CallEventService.init(): CometChat must be initialized first. '
    'authenticationSettings is null.',
  );
  if (settings != null &&
      settings.appId != null &&
      settings.region != null) {
    await _initCallsSdk(settings.appId!, settings.region!);
  }

  // Log the user into the Calls SDK. CometChatCalls.init() only
  // initializes the SDK — it does NOT authenticate the user. Without
  // this login step, CometChatCalls.generateToken() fails with
  // "User auth token is null" because the Calls SDK's internal
  // CurrentUserRepository has no user record.
  _callsSdkLoginCompleter = Completer<void>();
  await _loginCallsSdk();
  // Only complete the login completer if login succeeded.
  // If it failed after all retries, leave it uncompleted so
  // waitForCallsSdk() will time out rather than proceeding with a broken SDK.
  if (_callsSdkLoginReady && !_callsSdkLoginCompleter!.isCompleted) {
    _callsSdkLoginCompleter!.complete();
  } else if (!_callsSdkLoginReady && !_callsSdkLoginCompleter!.isCompleted) {
    // Login failed — complete anyway so we don't hang forever,
    // but log a warning.
    developer.log('CallEventService: WARNING — Calls SDK login failed, generateToken will fail');
    _callsSdkLoginCompleter!.complete();
  }

  // Pre-cache the auth token so CallLogsBloc doesn't need to fetch it
  try {
    _cachedAuthToken = await CometChat.getUserAuthToken();
  } catch (e) {
    developer.log('CallEventService: getUserAuthToken failed: $e');
  }

  CometChat.addCallListener(_listenerId, this);
  CometChatCallEvents.addCallEventsListener(_listenerId, this);

  _initialized = true;
  developer.log('CallEventService initialized');
}