// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// @dart = 2.8

import 'package:flutter_tools/src/runner/flutter_command.dart';

typedef CommandFunction = Future<FlutterCommandResult> Function();

class DummyFlutterCommand extends FlutterCommand {

  DummyFlutterCommand({
    this.shouldUpdateCache = false,
    this.noUsagePath  = false,
    this.name = 'dummy',
    this.commandFunction,
  });

  final bool noUsagePath;
  final CommandFunction commandFunction;

  @override
  final bool shouldUpdateCache;

  @override
  String get description => 'does nothing';

  @override
  Future<String> get usagePath => noUsagePath ? null : super.usagePath;

  @override
  final String name;

  @override
  Future<FlutterCommandResult> runCommand() async {
    return commandFunction == null ? FlutterCommandResult.fail() : await commandFunction();
  }
}