// 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/application_package.dart';
import 'package:flutter_tools/src/artifacts.dart';
import 'package:flutter_tools/src/base/file_system.dart';
import 'package:flutter_tools/src/base/io.dart';
import 'package:flutter_tools/src/base/logger.dart';
import 'package:flutter_tools/src/base/platform.dart';
import 'package:flutter_tools/src/build_info.dart';
import 'package:flutter_tools/src/cache.dart';
import 'package:flutter_tools/src/ios/devices.dart';
import 'package:flutter_tools/src/ios/ios_deploy.dart';
import 'package:flutter_tools/src/ios/mac.dart';
import 'package:meta/meta.dart';
import 'package:mockito/mockito.dart';

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

const Map<String, String> kDyLdLibEntry = <String, String>{
  'DYLD_LIBRARY_PATH': '/path/to/libs',
};

void main() {
  testWithoutContext('IOSDevice.installApp calls ios-deploy correctly', () async {
    final FileSystem fileSystem = MemoryFileSystem.test();
    final IOSApp iosApp = PrebuiltIOSApp(
      projectBundleId: 'app',
      bundleDir: fileSystem.currentDirectory,
    );
    final FakeProcessManager processManager = FakeProcessManager.list(<FakeCommand>[
      const FakeCommand(command: <String>[
        'ios-deploy',
        '--id',
        '1234',
        '--bundle',
        '/',
        '--no-wifi',
      ], environment: <String, String>{
        'PATH': '/usr/bin:null',
        ...kDyLdLibEntry,
      })
    ]);
    final IOSDevice device = setUpIOSDevice(
      processManager: processManager,
      fileSystem: fileSystem,
    );
    final bool wasInstalled = await device.installApp(iosApp);

    expect(wasInstalled, true);
    expect(processManager.hasRemainingExpectations, false);
  });

  testWithoutContext('IOSDevice.uninstallApp calls ios-deploy correctly', () async {
    final IOSApp iosApp = PrebuiltIOSApp(projectBundleId: 'app');
    final FakeProcessManager processManager = FakeProcessManager.list(<FakeCommand>[
      const FakeCommand(command: <String>[
        'ios-deploy',
        '--id',
        '1234',
        '--uninstall_only',
        '--bundle_id',
        'app',
      ], environment: <String, String>{
        'PATH': '/usr/bin:null',
        ...kDyLdLibEntry,
      })
    ]);
    final IOSDevice device = setUpIOSDevice(processManager: processManager);
    final bool wasUninstalled = await device.uninstallApp(iosApp);

    expect(wasUninstalled, true);
    expect(processManager.hasRemainingExpectations, false);
  });

  group('isAppInstalled', () {
    testWithoutContext('catches ProcessException from ios-deploy', () async {
      final IOSApp iosApp = PrebuiltIOSApp(projectBundleId: 'app');
      final FakeProcessManager processManager = FakeProcessManager.list(<FakeCommand>[
        FakeCommand(command: const <String>[
          'ios-deploy',
          '--id',
          '1234',
          '--exists',
          '--timeout',
          '10',
          '--bundle_id',
          'app',
        ], environment: const <String, String>{
          'PATH': '/usr/bin:null',
          ...kDyLdLibEntry,
        }, onRun: () {
          throw const ProcessException('ios-deploy', <String>[]);
        })
      ]);
      final IOSDevice device = setUpIOSDevice(processManager: processManager);
      final bool isAppInstalled = await device.isAppInstalled(iosApp);

      expect(isAppInstalled, false);
      expect(processManager.hasRemainingExpectations, false);
    });

    testWithoutContext('returns true when app is installed', () async {
      final IOSApp iosApp = PrebuiltIOSApp(projectBundleId: 'app');
      final FakeProcessManager processManager = FakeProcessManager.list(<FakeCommand>[
        const FakeCommand(command: <String>[
          'ios-deploy',
          '--id',
          '1234',
          '--exists',
          '--timeout',
          '10',
          '--bundle_id',
          'app',
        ], environment: <String, String>{
          'PATH': '/usr/bin:null',
          ...kDyLdLibEntry,
        }, exitCode: 0)
      ]);
      final IOSDevice device = setUpIOSDevice(processManager: processManager);
      final bool isAppInstalled = await device.isAppInstalled(iosApp);

      expect(isAppInstalled, isTrue);
      expect(processManager.hasRemainingExpectations, false);
    });

    testWithoutContext('returns false when app is not installed', () async {
      final IOSApp iosApp = PrebuiltIOSApp(projectBundleId: 'app');
      final FakeProcessManager processManager = FakeProcessManager.list(<FakeCommand>[
        const FakeCommand(command: <String>[
          'ios-deploy',
          '--id',
          '1234',
          '--exists',
          '--timeout',
          '10',
          '--bundle_id',
          'app',
        ], environment: <String, String>{
          'PATH': '/usr/bin:null',
          ...kDyLdLibEntry,
        }, exitCode: 255)
      ]);
      final BufferLogger logger = BufferLogger.test();
      final IOSDevice device = setUpIOSDevice(processManager: processManager, logger: logger);
      final bool isAppInstalled = await device.isAppInstalled(iosApp);

      expect(isAppInstalled, isFalse);
      expect(processManager.hasRemainingExpectations, false);
      expect(logger.traceText, contains('${iosApp.id} not installed on ${device.id}'));
    });

    testWithoutContext('returns false on command timeout or other error', () async {
      final IOSApp iosApp = PrebuiltIOSApp(projectBundleId: 'app');
      const String stderr = '2020-03-26 17:48:43.484 ios-deploy[21518:5501783] [ !! ] Timed out waiting for device';
      final FakeProcessManager processManager = FakeProcessManager.list(<FakeCommand>[
        const FakeCommand(command: <String>[
          'ios-deploy',
          '--id',
          '1234',
          '--exists',
          '--timeout',
          '10',
          '--bundle_id',
          'app',
        ], environment: <String, String>{
          'PATH': '/usr/bin:null',
          ...kDyLdLibEntry,
        }, stderr: stderr,
          exitCode: 253)
      ]);
      final BufferLogger logger = BufferLogger.test();
      final IOSDevice device = setUpIOSDevice(processManager: processManager, logger: logger);
      final bool isAppInstalled = await device.isAppInstalled(iosApp);

      expect(isAppInstalled, isFalse);
      expect(processManager.hasRemainingExpectations, false);
      expect(logger.traceText, contains(stderr));
    });
  });

  testWithoutContext('IOSDevice.installApp catches ProcessException from ios-deploy', () async {
    final FileSystem fileSystem = MemoryFileSystem.test();
    final IOSApp iosApp = PrebuiltIOSApp(
      projectBundleId: 'app',
      bundleDir: fileSystem.currentDirectory,
    );
    final FakeProcessManager processManager = FakeProcessManager.list(<FakeCommand>[
      FakeCommand(command: const <String>[
        'ios-deploy',
        '--id',
        '1234',
        '--bundle',
        '/',
        '--no-wifi',
      ], environment: const <String, String>{
        'PATH': '/usr/bin:null',
        ...kDyLdLibEntry,
      }, onRun: () {
        throw const ProcessException('ios-deploy', <String>[]);
      })
    ]);
    final IOSDevice device = setUpIOSDevice(processManager: processManager);
    final bool wasAppInstalled = await device.installApp(iosApp);

    expect(wasAppInstalled, false);
  });

  testWithoutContext('IOSDevice.uninstallApp catches ProcessException from ios-deploy', () async {
    final IOSApp iosApp = PrebuiltIOSApp(projectBundleId: 'app');
    final FakeProcessManager processManager = FakeProcessManager.list(<FakeCommand>[
      FakeCommand(command: const <String>[
        'ios-deploy',
        '--id',
        '1234',
        '--uninstall_only',
        '--bundle_id',
        'app',
      ], environment: const <String, String>{
        'PATH': '/usr/bin:null',
        ...kDyLdLibEntry,
      }, onRun: () {
        throw const ProcessException('ios-deploy', <String>[]);
      })
    ]);
    final IOSDevice device = setUpIOSDevice(processManager: processManager);
    final bool wasAppUninstalled = await device.uninstallApp(iosApp);

    expect(wasAppUninstalled, false);
  });
}

IOSDevice setUpIOSDevice({
  @required ProcessManager processManager,
  FileSystem fileSystem,
  Logger logger,
}) {
  logger ??= BufferLogger.test();
  final FakePlatform platform = FakePlatform(
    operatingSystem: 'macos',
    environment: <String, String>{},
  );
  final MockArtifacts artifacts = MockArtifacts();
  final MockCache cache = MockCache();
  when(cache.dyLdLibEntry).thenReturn(kDyLdLibEntry.entries.first);
  when(artifacts.getArtifactPath(Artifact.iosDeploy, platform: anyNamed('platform')))
    .thenReturn('ios-deploy');
  return IOSDevice(
    '1234',
    name: 'iPhone 1',
    logger: logger,
    fileSystem: fileSystem ?? MemoryFileSystem.test(),
    sdkVersion: '13.3',
    cpuArchitecture: DarwinArch.arm64,
    platform: platform,
    iMobileDevice: IMobileDevice(
      logger: logger,
      processManager: processManager,
      artifacts: artifacts,
      cache: cache,
    ),
    iosDeploy: IOSDeploy(
      logger: logger,
      platform: platform,
      processManager: processManager,
      artifacts: artifacts,
      cache: cache,
    ),
    artifacts: artifacts,
  );
}

class MockArtifacts extends Mock implements Artifacts {}
class MockCache extends Mock implements Cache {}