// 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.

import 'package:file/memory.dart';
import 'package:flutter_tools/src/base/logger.dart';
import 'package:flutter_tools/src/persistent_tool_state.dart';
import 'package:flutter_tools/src/reporting/first_run.dart';

import '../../src/common.dart';

void main() {
  testWithoutContext('FirstRunMessenger delegates to the first run message', () {
    final FirstRunMessenger messenger = setUpFirstRunMessenger();

    expect(messenger.licenseTerms, contains('Welcome to Flutter'));
  });

  testWithoutContext('FirstRunMessenger requires redisplay if it has never been run before', () {
    final FirstRunMessenger messenger = setUpFirstRunMessenger();

    expect(messenger.shouldDisplayLicenseTerms(), true);
    expect(messenger.shouldDisplayLicenseTerms(), true);

    // Once terms have been confirmed, then it will return false.
    messenger.confirmLicenseTermsDisplayed();

    expect(messenger.shouldDisplayLicenseTerms(), false);
  });

  testWithoutContext('FirstRunMessenger requires redisplay if the license terms have changed', () {
    final TestFirstRunMessenger messenger = setUpFirstRunMessenger(test: true) as TestFirstRunMessenger;
    messenger.confirmLicenseTermsDisplayed();

    expect(messenger.shouldDisplayLicenseTerms(), false);

    messenger.overrideLicenseTerms = 'This is a new license';

    expect(messenger.shouldDisplayLicenseTerms(), true);
  });

  testWithoutContext('FirstRunMessenger does not require re-display if the persistent tool state disables it', () {
    final FirstRunMessenger messenger = setUpFirstRunMessenger(redisplayWelcomeMessage: false);

    expect(messenger.shouldDisplayLicenseTerms(), false);
  });
}

FirstRunMessenger setUpFirstRunMessenger({bool redisplayWelcomeMessage, bool test = false }) {
  final MemoryFileSystem fileSystem = MemoryFileSystem.test();
  final PersistentToolState state = PersistentToolState.test(directory: fileSystem.currentDirectory, logger: BufferLogger.test())
    ..redisplayWelcomeMessage = redisplayWelcomeMessage;
  if (test) {
    return TestFirstRunMessenger(state);
  }
  return FirstRunMessenger(persistentToolState: state);
}

class TestFirstRunMessenger extends FirstRunMessenger {
  TestFirstRunMessenger(PersistentToolState persistentToolState) : super(persistentToolState: persistentToolState);

  String overrideLicenseTerms;

  @override
  String get licenseTerms => overrideLicenseTerms ?? super.licenseTerms;
}