// 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/file_system.dart';
import 'package:flutter_tools/src/platform_plugins.dart';
import 'package:flutter_tools/src/plugins.dart';
import 'package:yaml/yaml.dart';

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

const String _kTestPluginName = 'test_plugin_name';
const String _kTestPluginPath = 'test_plugin_path';

void main() {
  testWithoutContext('Plugin creation from the legacy format', () {
    final MemoryFileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw = 'androidPackage: com.flutter.dev\n'
      'iosPrefix: FLT\n'
      'pluginClass: SamplePlugin\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    final AndroidPlugin androidPlugin = plugin.platforms[AndroidPlugin.kConfigKey]! as AndroidPlugin;
    final IOSPlugin iosPlugin = plugin.platforms[IOSPlugin.kConfigKey]! as IOSPlugin;
    final String androidPluginClass = androidPlugin.pluginClass;
    final String iosPluginClass = iosPlugin.pluginClass;

    expect(iosPluginClass, 'SamplePlugin');
    expect(androidPluginClass, 'SamplePlugin');
    expect(iosPlugin.classPrefix, 'FLT');
    expect(androidPlugin.package, 'com.flutter.dev');
  });

  testWithoutContext('Plugin creation from the multi-platform format', () {
    final MemoryFileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw = 'platforms:\n'
      ' android:\n'
      '  package: com.flutter.dev\n'
      '  pluginClass: ASamplePlugin\n'
      ' ios:\n'
      '  pluginClass: ISamplePlugin\n'
      ' linux:\n'
      '  pluginClass: LSamplePlugin\n'
      ' macos:\n'
      '  pluginClass: MSamplePlugin\n'
      ' web:\n'
      '  pluginClass: WebSamplePlugin\n'
      '  fileName: web_plugin.dart\n'
      ' windows:\n'
      '  pluginClass: WinSamplePlugin\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    final AndroidPlugin androidPlugin = plugin.platforms[AndroidPlugin.kConfigKey]! as AndroidPlugin;
    final IOSPlugin iosPlugin = plugin.platforms[IOSPlugin.kConfigKey]! as IOSPlugin;
    final LinuxPlugin linuxPlugin = plugin.platforms[LinuxPlugin.kConfigKey]! as LinuxPlugin;
    final MacOSPlugin macOSPlugin = plugin.platforms[MacOSPlugin.kConfigKey]! as MacOSPlugin;
    final WebPlugin webPlugin = plugin.platforms[WebPlugin.kConfigKey]! as WebPlugin;
    final WindowsPlugin windowsPlugin = plugin.platforms[WindowsPlugin.kConfigKey]! as WindowsPlugin;
    final String androidPluginClass = androidPlugin.pluginClass;
    final String iosPluginClass = iosPlugin.pluginClass;

    expect(iosPluginClass, 'ISamplePlugin');
    expect(androidPluginClass, 'ASamplePlugin');
    expect(iosPlugin.classPrefix, '');
    expect(androidPlugin.package, 'com.flutter.dev');
    expect(linuxPlugin.pluginClass, 'LSamplePlugin');
    expect(macOSPlugin.pluginClass, 'MSamplePlugin');
    expect(webPlugin.pluginClass, 'WebSamplePlugin');
    expect(webPlugin.fileName, 'web_plugin.dart');
    expect(windowsPlugin.pluginClass, 'WinSamplePlugin');
  });

  testWithoutContext('Plugin parsing of unknown fields are allowed (allows some future compatibility)', () {
    final MemoryFileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw = 'implements: same_plugin\n' // this should be ignored by the tool
      'platforms:\n'
      ' android:\n'
      '  package: com.flutter.dev\n'
      '  pluginClass: ASamplePlugin\n'
      '  anUnknownField: ASamplePlugin\n' // this should be ignored by the tool
      ' ios:\n'
      '  pluginClass: ISamplePlugin\n'
      ' linux:\n'
      '  pluginClass: LSamplePlugin\n'
      ' macos:\n'
      '  pluginClass: MSamplePlugin\n'
      ' web:\n'
      '  pluginClass: WebSamplePlugin\n'
      '  fileName: web_plugin.dart\n'
      ' windows:\n'
        '  pluginClass: WinSamplePlugin\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    final AndroidPlugin androidPlugin = plugin.platforms[AndroidPlugin.kConfigKey]! as AndroidPlugin;
    final IOSPlugin iosPlugin = plugin.platforms[IOSPlugin.kConfigKey]! as IOSPlugin;
    final LinuxPlugin linuxPlugin = plugin.platforms[LinuxPlugin.kConfigKey]! as LinuxPlugin;
    final MacOSPlugin macOSPlugin = plugin.platforms[MacOSPlugin.kConfigKey]! as MacOSPlugin;
    final WebPlugin webPlugin = plugin.platforms[WebPlugin.kConfigKey]! as WebPlugin;
    final WindowsPlugin windowsPlugin = plugin.platforms[WindowsPlugin.kConfigKey]! as WindowsPlugin;
    final String androidPluginClass = androidPlugin.pluginClass;
    final String iosPluginClass = iosPlugin.pluginClass;

    expect(iosPluginClass, 'ISamplePlugin');
    expect(androidPluginClass, 'ASamplePlugin');
    expect(iosPlugin.classPrefix, '');
    expect(androidPlugin.package, 'com.flutter.dev');
    expect(linuxPlugin.pluginClass, 'LSamplePlugin');
    expect(macOSPlugin.pluginClass, 'MSamplePlugin');
    expect(webPlugin.pluginClass, 'WebSamplePlugin');
    expect(webPlugin.fileName, 'web_plugin.dart');
    expect(windowsPlugin.pluginClass, 'WinSamplePlugin');
  });

  testWithoutContext('Plugin parsing allows for Dart-only plugins without a pluginClass', () {
    final FileSystem fileSystem = MemoryFileSystem.test();
    /// This is currently supported only on macOS, linux, Windows.
    const String pluginYamlRaw = 'implements: same_plugin\n' // this should be ignored by the tool
      'platforms:\n'
      ' linux:\n'
      '  dartPluginClass: LSamplePlugin\n'
      ' macos:\n'
      '  dartPluginClass: MSamplePlugin\n'
      ' windows:\n'
      '  dartPluginClass: WinSamplePlugin\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    final LinuxPlugin linuxPlugin = plugin.platforms[LinuxPlugin.kConfigKey]! as LinuxPlugin;
    final MacOSPlugin macOSPlugin = plugin.platforms[MacOSPlugin.kConfigKey]! as MacOSPlugin;
    final WindowsPlugin windowsPlugin = plugin.platforms[WindowsPlugin.kConfigKey]! as WindowsPlugin;

    expect(linuxPlugin.pluginClass, isNull);
    expect(macOSPlugin.pluginClass, isNull);
    expect(windowsPlugin.pluginClass, isNull);
    expect(linuxPlugin.dartPluginClass, 'LSamplePlugin');
    expect(macOSPlugin.dartPluginClass, 'MSamplePlugin');
    expect(windowsPlugin.dartPluginClass, 'WinSamplePlugin');
  });

  testWithoutContext('Plugin parsing of legacy format and multi-platform format together is not allowed '
    'and fatal error message contains plugin name', () {
    final FileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw = 'androidPackage: com.flutter.dev\n'
      'platforms:\n'
      ' android:\n'
      '  package: com.flutter.dev\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;

    expect(
     () => Plugin.fromYaml(
        _kTestPluginName,
        _kTestPluginPath,
        pluginYaml,
        const <String>[],
        fileSystem: fileSystem,
      ),
      throwsToolExit(message: _kTestPluginName),
    );
  });

  testWithoutContext('Plugin parsing allows a default_package field', () {
    final FileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw =
      'platforms:\n'
      ' android:\n'
      '  default_package: sample_package_android\n'
      ' ios:\n'
      '  default_package: sample_package_ios\n'
      ' linux:\n'
      '  default_package: sample_package_linux\n'
      ' macos:\n'
      '  default_package: sample_package_macos\n'
      ' web:\n'
      '  default_package: sample_package_web\n'
      ' windows:\n'
      '  default_package: sample_package_windows\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    expect(plugin.platforms, <String, PluginPlatform>{});
    expect(plugin.defaultPackagePlatforms, <String, String>{
      'linux': 'sample_package_linux',
      'macos': 'sample_package_macos',
      'windows': 'sample_package_windows',
    });
    expect(plugin.pluginDartClassPlatforms, <String, String>{});
  });

  testWithoutContext('Desktop plugin parsing allows a dartPluginClass field', () {
    final FileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw =
      'platforms:\n'
      ' linux:\n'
      '  dartPluginClass: LinuxClass\n'
      ' macos:\n'
      '  dartPluginClass: MacOSClass\n'
      ' windows:\n'
      '  dartPluginClass: WindowsClass\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    expect(plugin.pluginDartClassPlatforms, <String, String>{
      'linux': 'LinuxClass',
      'macos': 'MacOSClass',
      'windows': 'WindowsClass',
    });
  });

  testWithoutContext('Windows allows supported mode lists', () {
    final FileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw =
      'platforms:\n'
      ' windows:\n'
      '  pluginClass: WinSamplePlugin\n'
      '  supportedVariants:\n'
      '    - win32\n'
      '    - uwp\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    final WindowsPlugin windowsPlugin = plugin.platforms[WindowsPlugin.kConfigKey]! as WindowsPlugin;
    expect(windowsPlugin.supportedVariants, <PluginPlatformVariant>[
      PluginPlatformVariant.win32,
      PluginPlatformVariant.winuwp,
    ]);
  });

  testWithoutContext('Windows assumes win32 when no variants are given', () {
    final FileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw =
      'platforms:\n'
      ' windows:\n'
      '  pluginClass: WinSamplePlugin\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    final WindowsPlugin windowsPlugin = plugin.platforms[WindowsPlugin.kConfigKey]! as WindowsPlugin;
    expect(windowsPlugin.supportedVariants, <PluginPlatformVariant>[
      PluginPlatformVariant.win32,
    ]);
  });

  testWithoutContext('Windows ignores unknown variants', () {
    final FileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw =
      'platforms:\n'
      ' windows:\n'
      '  pluginClass: WinSamplePlugin\n'
      '  supportedVariants:\n'
      '    - not_yet_invented_variant\n'
      '    - uwp\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    final Plugin plugin = Plugin.fromYaml(
      _kTestPluginName,
      _kTestPluginPath,
      pluginYaml,
      const <String>[],
      fileSystem: fileSystem,
    );

    final WindowsPlugin windowsPlugin = plugin.platforms[WindowsPlugin.kConfigKey]! as WindowsPlugin;
    expect(windowsPlugin.supportedVariants, <PluginPlatformVariant>{
      PluginPlatformVariant.winuwp,
    });
  });

  testWithoutContext('Plugin parsing throws a fatal error on an empty plugin', () {
    final MemoryFileSystem fileSystem = MemoryFileSystem.test();
    final YamlMap? pluginYaml = loadYaml('') as YamlMap?;

    expect(
      () => Plugin.fromYaml(
        _kTestPluginName,
        _kTestPluginPath,
        pluginYaml,
        const <String>[],
        fileSystem: fileSystem,
      ),
      throwsToolExit(message: 'Invalid "plugin" specification.'),
    );
  });

  testWithoutContext('Plugin parsing throws a fatal error on empty platforms', () {
    final MemoryFileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw = 'platforms:\n';
    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;

    expect(
      () => Plugin.fromYaml(
        _kTestPluginName,
        _kTestPluginPath,
        pluginYaml,
        const <String>[],
        fileSystem: fileSystem,
      ),
      throwsToolExit(message: 'Invalid "platforms" specification.'),
    );
  });

  test('Plugin parsing throws a fatal error on an empty platform key', () {
    final MemoryFileSystem fileSystem = MemoryFileSystem.test();
    const String pluginYamlRaw =
      'platforms:\n'
      ' android:\n';

    final YamlMap pluginYaml = loadYaml(pluginYamlRaw) as YamlMap;
    expect(
      () => Plugin.fromYaml(
        _kTestPluginName,
        _kTestPluginPath,
        pluginYaml,
        const <String>[],
        fileSystem: fileSystem,
      ),
      throwsToolExit(message: 'Invalid "android" plugin specification.'),
    );
  });
}