// 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:args/command_runner.dart';
import 'package:file/memory.dart';
import 'package:flutter_tools/src/artifacts.dart';
import 'package:flutter_tools/src/base/file_system.dart';
import 'package:flutter_tools/src/base/logger.dart';
import 'package:flutter_tools/src/base/process.dart';
import 'package:flutter_tools/src/build_system/build_system.dart';
import 'package:flutter_tools/src/cache.dart';
import 'package:flutter_tools/src/commands/build.dart';
import 'package:flutter_tools/src/runner/flutter_command.dart';

import '../../src/common.dart';
import '../../src/context.dart';
import '../../src/fakes.dart';
import '../../src/test_build_system.dart';
import '../../src/test_flutter_command_runner.dart';

void main() {
  testUsingContext('obfuscate requires split-debug-info', () {
    final FakeBuildInfoCommand command = FakeBuildInfoCommand();
    final CommandRunner<void> commandRunner = createTestCommandRunner(command);

    expect(() => commandRunner.run(<String>[
      'fake',
      '--obfuscate',
    ]), throwsToolExit(message: '"--${FlutterOptions.kDartObfuscationOption}" can only be used in '
        'combination with "--${FlutterOptions.kSplitDebugInfoOption}"'));
  });

  group('Fatal Logs', () {
    late FakeBuildCommand command;
    late MemoryFileSystem fs;
    late BufferLogger logger;
    late ProcessManager processManager;
    late ProcessUtils processUtils;
    late Artifacts artifacts;

    setUp(() {
      fs = MemoryFileSystem.test();
      artifacts = Artifacts.test(fileSystem: fs);
      fs.file('/package/pubspec.yaml').createSync(recursive: true);
      fs.currentDirectory = '/package';
      Cache.disableLocking();
      logger = BufferLogger.test();
      processManager = FakeProcessManager.empty();
      processUtils = ProcessUtils(
        logger: logger,
        processManager: processManager,
      );
    });

    testUsingContext("doesn't fail if --fatal-warnings specified and no warnings occur", () async {
      command = FakeBuildCommand(
        artifacts: artifacts,
        androidSdk: FakeAndroidSdk(),
        buildSystem: TestBuildSystem.all(BuildResult(success: true)),
        fileSystem: fs,
        logger: logger,
        processUtils: processUtils,
        osUtils: FakeOperatingSystemUtils(),
      );
      try {
        await createTestCommandRunner(command).run(<String>[
          'build',
          'test',
          '--${FlutterOptions.kFatalWarnings}',
        ]);
      } on Exception {
        fail('Unexpected exception thrown');
      }
    }, overrides: <Type, Generator>{
      FileSystem: () => fs,
      ProcessManager: () => processManager,
    });

    testUsingContext("doesn't fail if --fatal-warnings not specified", () async {
      command = FakeBuildCommand(
        artifacts: artifacts,
        androidSdk: FakeAndroidSdk(),
        buildSystem: TestBuildSystem.all(BuildResult(success: true)),
        fileSystem: fs,
        logger: logger,
        processUtils: processUtils,
        osUtils: FakeOperatingSystemUtils(),
      );
      testLogger.printWarning('Warning: Mild annoyance Will Robinson!');
      try {
        await createTestCommandRunner(command).run(<String>[
          'build',
          'test',
        ]);
      } on Exception {
        fail('Unexpected exception thrown');
      }
    }, overrides: <Type, Generator>{
      FileSystem: () => fs,
      ProcessManager: () => processManager,
    });

    testUsingContext('fails if --fatal-warnings specified and warnings emitted', () async {
      command = FakeBuildCommand(
        artifacts: artifacts,
        androidSdk: FakeAndroidSdk(),
        buildSystem: TestBuildSystem.all(BuildResult(success: true)),
        fileSystem: fs,
        logger: logger,
        processUtils: processUtils,
        osUtils: FakeOperatingSystemUtils(),
      );
      testLogger.printWarning('Warning: Mild annoyance Will Robinson!');
      await expectLater(createTestCommandRunner(command).run(<String>[
        'build',
        'test',
        '--${FlutterOptions.kFatalWarnings}',
      ]), throwsToolExit(message: 'Logger received warning output during the run, and "--${FlutterOptions.kFatalWarnings}" is enabled.'));
    }, overrides: <Type, Generator>{
      FileSystem: () => fs,
      ProcessManager: () => processManager,
    });

    testUsingContext('fails if --fatal-warnings specified and errors emitted', () async {
      command = FakeBuildCommand(
        artifacts: artifacts,
        androidSdk: FakeAndroidSdk(),
        buildSystem: TestBuildSystem.all(BuildResult(success: true)),
        fileSystem: fs,
        logger: logger,
        processUtils: processUtils,
        osUtils: FakeOperatingSystemUtils(),
      );
      testLogger.printError('Error: Danger Will Robinson!');
      await expectLater(createTestCommandRunner(command).run(<String>[
        'build',
        'test',
        '--${FlutterOptions.kFatalWarnings}',
      ]), throwsToolExit(message: 'Logger received error output during the run, and "--${FlutterOptions.kFatalWarnings}" is enabled.'));
    }, overrides: <Type, Generator>{
      FileSystem: () => fs,
      ProcessManager: () => processManager,
    });
  });
}

class FakeBuildInfoCommand extends FlutterCommand {
  FakeBuildInfoCommand() : super() {
    addSplitDebugInfoOption();
    addDartObfuscationOption();
  }

  @override
  String get description => '';

  @override
  String get name => 'fake';

  @override
  Future<FlutterCommandResult> runCommand() async {
    await getBuildInfo();
    return FlutterCommandResult.success();
  }
}

class FakeBuildCommand extends BuildCommand {
  FakeBuildCommand({
    required super.fileSystem,
    required super.buildSystem,
    required super.osUtils,
    required Logger logger,
    required super.androidSdk,
    required super.processUtils,
    required super.artifacts,
    bool verboseHelp = false,
  }) : super(logger: logger) {
    addSubcommand(FakeBuildSubcommand(logger: logger, verboseHelp: verboseHelp));
  }

  @override
  String get description => '';

  @override
  String get name => 'build';

  @override
  Future<FlutterCommandResult> runCommand() async {
    return FlutterCommandResult.success();
  }
}

class FakeBuildSubcommand extends BuildSubCommand {
  FakeBuildSubcommand({required super.logger, required super.verboseHelp});

  @override
  String get description => '';

  @override
  String get name => 'test';

  @override
  Future<FlutterCommandResult> runCommand() async {
    return FlutterCommandResult.success();
  }
}