// 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 'dart:io';
import 'dart:typed_data';

import 'package:flutter_devicelab/framework/devices.dart';
import 'package:flutter_devicelab/framework/framework.dart';
import 'package:flutter_devicelab/framework/task_result.dart';
import 'package:flutter_devicelab/framework/utils.dart';
import 'package:flutter_devicelab/tasks/integration_tests.dart';
import 'package:path/path.dart' as path;
import 'package:standard_message_codec/standard_message_codec.dart';

Future<void> main() async {
  deviceOperatingSystem = DeviceOperatingSystem.macos;
  await task(() async {
    await createFlavorsTest().call();
    await createIntegrationTestFlavorsTest().call();

    final String projectDir = '${flutterDirectory.path}/dev/integration_tests/flavors';
    final TaskResult installTestsResult = await inDirectory(
      projectDir,
      () async {
        await flutter(
          'install',
          options: <String>['--flavor', 'paid', '-d', 'macos'],
        );
        await flutter(
          'install',
          options: <String>['--flavor', 'paid', '--uninstall-only', '-d', 'macos'],
        );
        final StringBuffer stderr = StringBuffer();
        await evalFlutter(
          'build',
          canFail: true,
          stderr: stderr,
          options: <String>['macos', '--flavor', 'bogus'],
        );

        final Uint8List assetManifestFileData = File(
          path.join(
            projectDir,
            'build',
            'macos',
            'Build',
            'Products',
            'Debug-paid',
            'Debug Paid.app',
            'Contents',
            'Frameworks',
            'App.framework',
            'Resources',
            'flutter_assets',
            'AssetManifest.bin'
          ),
        ).readAsBytesSync();

        final Map<Object?, Object?> assetManifest = const StandardMessageCodec()
          .decodeMessage(ByteData.sublistView(assetManifestFileData)) as Map<Object?, Object?>;

        if (assetManifest.containsKey('assets/free/free.txt')) {
          return TaskResult.failure('Expected the asset "assets/free/free.txt", which '
            ' was declared with a flavor of "free" to not be included in the asset bundle '
            ' because the --flavor was set to "paid".');
        }

        if (!assetManifest.containsKey('assets/paid/paid.txt')) {
          return TaskResult.failure('Expected the asset "assets/paid/paid.txt", which '
            ' was declared with a flavor of "paid" to be included in the asset bundle '
            ' because the --flavor was set to "paid".');
        }

        final String stderrString = stderr.toString();
        print(stderrString);
        if (!stderrString.contains('The Xcode project defines schemes:')) {
          print(stderrString);
          return TaskResult.failure('Should not succeed with bogus flavor');
        }

        return TaskResult.success(null);
      },
    );

    return installTestsResult;
  });
}