async initAndStart()

in src/common/language_server/language_client_wrapper.ts [84:142]
49 lines of code
3 McCabe index (conditional complexity)

  async initAndStart() {
    this.#client.registerProposedFeatures();
    this.#subscriptions.push();

    this.#client.onNotification(
      TokenCheckNotificationType,
      (response: TokenCheckNotificationParams) => {
        log.warn(
          `[auth] Token validation failed in Language Server: (${response.message}). This can happen during OAuth token refresh.`,
        );
      },
    );

    this.#client.onNotification('$/gitlab/openUrl', ({ url }) =>
      vscode.env.openExternal(url).then(result => {
        if (!result) {
          log.warn(`Unable to open URL: ${url}`);
        }

        return result;
      }),
    );

    this.#client.onNotification('$/gitlab/openFile', ({ filePath }) => {
      const joinedPath = path.join(vscode.workspace.rootPath || '', filePath);

      return vscode.commands.executeCommand('vscode.open', vscode.Uri.file(joinedPath));
    });

    this.#client.onRequest(AiContextEditorRequests.GIT_DIFF, (params: GitDiffRequest) => {
      log.debug(`Received git diff request: ${JSON.stringify(params)}`);
      return this.#handleGitDiffRequest(params);
    });
    this.#client.onRequest(
      DEFAULT_WEBVIEW_REQUEST_METHOD,
      handleWebviewRequest(this.#webviewMessageRegistry),
    );
    this.#client.onNotification(
      DEFAULT_WEBVIEW_NOTIFICATION_METHOD,
      handleWebviewNotification(this.#webviewMessageRegistry),
    );

    this.#client.onNotification(FeatureStateChangeNotificationType, async params => {
      this.#languageServerFeatureStateProvider.setStates(params);
    });

    this.#webviewMessageRegistry.initNotifier(
      createNotifyFn(this.#client, DEFAULT_WEBVIEW_NOTIFICATION_METHOD),
    );

    await this.#client.start();
    this.#subscriptions.push({ dispose: () => this.#client.stop() });
    await this.syncConfig();
    await this.#sendOpenTabs();
    await this.#sendActiveDocument();

    const interval = setInterval(this.pingWithCredentials, 10 * 1000);
    this.#subscriptions.push(new vscode.Disposable(() => clearInterval(interval)));
  }