// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'dart:async';

import 'usage.dart';

class DisabledUsage implements Usage {
  @override
  bool get isFirstRun => false;

  @override
  bool get suppressAnalytics => true;

  @override
  set suppressAnalytics(bool value) { }

  @override
  bool get enabled => false;

  @override
  set enabled(bool value) { }

  @override
  String get clientId => null;

  @override
  void sendCommand(String command, { Map<String, String> parameters }) { }

  @override
  void sendEvent(String category, String parameter, { Map<String, String> parameters }) { }

  @override
  void sendTiming(String category, String variableName, Duration duration, { String label }) { }

  @override
  void sendException(dynamic exception, StackTrace trace) { }

  @override
  Stream<Map<String, dynamic>> get onSend => null;

  @override
  Future<Null> ensureAnalyticsSent() => new Future<Null>.value();

  @override
  void printWelcome() { }
}
