// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

library test.domain.execution;

import 'dart:async';

import 'package:analysis_server/src/analysis_server.dart';
import 'package:analysis_server/src/constants.dart';
import 'package:analysis_server/src/domain_execution.dart';
import 'package:analysis_server/src/plugin/server_plugin.dart';
import 'package:analysis_server/src/protocol.dart';
import 'package:analyzer/file_system/file_system.dart';
import 'package:analyzer/file_system/memory_file_system.dart';
import 'package:analyzer/instrumentation/instrumentation.dart';
import 'package:analyzer/src/generated/engine.dart';
import 'package:analyzer/src/generated/source.dart';
import 'package:analyzer/src/generated/source_io.dart';
import 'package:plugin/manager.dart';
import 'package:typed_mock/typed_mock.dart';
import 'package:unittest/unittest.dart';

import 'mock_sdk.dart';
import 'mocks.dart';
import 'operation/operation_queue_test.dart';

main() {
  group('ExecutionDomainHandler', () {
    MemoryResourceProvider provider = new MemoryResourceProvider();
    AnalysisServer server;
    ExecutionDomainHandler handler;

    setUp(() {
      ExtensionManager manager = new ExtensionManager();
      ServerPlugin serverPlugin = new ServerPlugin();
      manager.processPlugins([serverPlugin]);
      server = new AnalysisServer(new MockServerChannel(), provider,
          new MockPackageMapProvider(), null, serverPlugin,
          new AnalysisServerOptions(), new MockSdk(),
          InstrumentationService.NULL_SERVICE);
      handler = new ExecutionDomainHandler(server);
    });

    group('createContext/deleteContext', () {
      test('create/delete multiple contexts', () {
        Request request =
            new ExecutionCreateContextParams('/a/b.dart').toRequest('0');
        Response response = handler.handleRequest(request);
        expect(response, isResponseSuccess('0'));
        ExecutionCreateContextResult result =
            new ExecutionCreateContextResult.fromResponse(response);
        String id0 = result.id;

        request = new ExecutionCreateContextParams('/c/d.dart').toRequest('1');
        response = handler.handleRequest(request);
        expect(response, isResponseSuccess('1'));
        result = new ExecutionCreateContextResult.fromResponse(response);
        String id1 = result.id;

        expect(id0 == id1, isFalse);

        request = new ExecutionDeleteContextParams(id0).toRequest('2');
        response = handler.handleRequest(request);
        expect(response, isResponseSuccess('2'));

        request = new ExecutionDeleteContextParams(id1).toRequest('3');
        response = handler.handleRequest(request);
        expect(response, isResponseSuccess('3'));
      });

      test('delete non-existent context', () {
        Request request = new ExecutionDeleteContextParams('13').toRequest('0');
        Response response = handler.handleRequest(request);
        // TODO(brianwilkerson) It isn't currently specified to be an error if a
        // client attempts to delete a context that doesn't exist. Should it be?
//        expect(response, isResponseFailure('0'));
        expect(response, isResponseSuccess('0'));
      });
    });

    group('mapUri', () {
      String contextId;

      setUp(() {
        Folder folder = provider.newFile('/a/b.dart', '').parent;
        server.folderMap.putIfAbsent(folder, () {
          SourceFactory factory =
              new SourceFactory([new ResourceUriResolver(provider)]);
          AnalysisContext context =
              AnalysisEngine.instance.createAnalysisContext();
          context.sourceFactory = factory;
          return context;
        });
        Request request =
            new ExecutionCreateContextParams('/a/b.dart').toRequest('0');
        Response response = handler.handleRequest(request);
        expect(response, isResponseSuccess('0'));
        ExecutionCreateContextResult result =
            new ExecutionCreateContextResult.fromResponse(response);
        contextId = result.id;
      });

      tearDown(() {
        Request request =
            new ExecutionDeleteContextParams(contextId).toRequest('1');
        Response response = handler.handleRequest(request);
        expect(response, isResponseSuccess('1'));
      });

      group('file to URI', () {
        test('does not exist', () {
          Request request = new ExecutionMapUriParams(contextId,
              file: '/a/c.dart').toRequest('2');
          Response response = handler.handleRequest(request);
          expect(response, isResponseFailure('2'));
        });

        test('directory', () {
          provider.newFolder('/a/d');
          Request request =
              new ExecutionMapUriParams(contextId, file: '/a/d').toRequest('2');
          Response response = handler.handleRequest(request);
          expect(response, isResponseFailure('2'));
        });

        test('valid', () {
          Request request = new ExecutionMapUriParams(contextId,
              file: '/a/b.dart').toRequest('2');
          Response response = handler.handleRequest(request);
          expect(response, isResponseSuccess('2'));
          ExecutionMapUriResult result =
              new ExecutionMapUriResult.fromResponse(response);
          expect(result.file, isNull);
          expect(result.uri, 'file:///a/b.dart');
        });
      });

      group('URI to file', () {
        test('invalid', () {
          Request request = new ExecutionMapUriParams(contextId,
              uri: 'foo:///a/b.dart').toRequest('2');
          Response response = handler.handleRequest(request);
          expect(response, isResponseFailure('2'));
        });

        test('valid', () {
          Request request = new ExecutionMapUriParams(contextId,
              uri: 'file:///a/b.dart').toRequest('2');
          Response response = handler.handleRequest(request);
          expect(response, isResponseSuccess('2'));
          ExecutionMapUriResult result =
              new ExecutionMapUriResult.fromResponse(response);
          expect(result.file, '/a/b.dart');
          expect(result.uri, isNull);
        });
      });

      test('invalid context id', () {
        Request request =
            new ExecutionMapUriParams('xxx', uri: '').toRequest('4');
        Response response = handler.handleRequest(request);
        expect(response, isResponseFailure('4'));
      });

      test('both file and uri', () {
        Request request =
            new ExecutionMapUriParams('xxx', file: '', uri: '').toRequest('5');
        Response response = handler.handleRequest(request);
        expect(response, isResponseFailure('5'));
      });

      test('neither file nor uri', () {
        Request request = new ExecutionMapUriParams('xxx').toRequest('6');
        Response response = handler.handleRequest(request);
        expect(response, isResponseFailure('6'));
      });
    });

    group('setSubscriptions', () {
      test('failure - invalid service name', () {
        expect(handler.onFileAnalyzed, isNull);

        Request request = new Request('0', EXECUTION_SET_SUBSCRIPTIONS, {
          SUBSCRIPTIONS: ['noSuchService']
        });
        Response response = handler.handleRequest(request);
        expect(response, isResponseFailure('0'));
        expect(handler.onFileAnalyzed, isNull);
      });

      test('success - setting and clearing', () {
        expect(handler.onFileAnalyzed, isNull);

        Request request =
            new ExecutionSetSubscriptionsParams([ExecutionService.LAUNCH_DATA])
                .toRequest('0');
        Response response = handler.handleRequest(request);
        expect(response, isResponseSuccess('0'));
        expect(handler.onFileAnalyzed, isNotNull);

        request = new ExecutionSetSubscriptionsParams([]).toRequest('0');
        response = handler.handleRequest(request);
        expect(response, isResponseSuccess('0'));
        expect(handler.onFileAnalyzed, isNull);
      });
    });

    test('onAnalysisComplete - success - setting and clearing', () {
      Source source1 = new TestSource('/a.dart');
      Source source2 = new TestSource('/b.dart');
      Source source3 = new TestSource('/c.dart');
      Source source4 = new TestSource('/d.dart');
      Source source5 = new TestSource('/e.html');
      Source source6 = new TestSource('/f.html');
      Source source7 = new TestSource('/g.html');

      AnalysisContext context = new AnalysisContextMock();
      when(context.launchableClientLibrarySources)
          .thenReturn([source1, source2]);
      when(context.launchableServerLibrarySources)
          .thenReturn([source2, source3]);
      when(context.librarySources).thenReturn([source4]);
      when(context.htmlSources).thenReturn([source5]);
      when(context.getLibrariesReferencedFromHtml(anyObject))
          .thenReturn([source6, source7]);

      ServerContextManager manager = new ServerContextManagerMock();
      when(manager.isInAnalysisRoot(anyString)).thenReturn(true);

      AnalysisServer server = new AnalysisServerMock();
      when(server.getAnalysisContexts()).thenReturn([context]);
      when(server.contextManager).thenReturn(manager);

      StreamController controller = new StreamController.broadcast(sync: true);
      when(server.onFileAnalyzed).thenReturn(controller.stream);

      List<String> unsentNotifications = <String>[
        source1.fullName,
        source2.fullName,
        source3.fullName,
        source4.fullName,
        source5.fullName
      ];
      when(server.sendNotification(anyObject))
          .thenInvoke((Notification notification) {
        ExecutionLaunchDataParams params =
            new ExecutionLaunchDataParams.fromNotification(notification);

        String fileName = params.file;
        expect(unsentNotifications.remove(fileName), isTrue);

        if (fileName == source1.fullName) {
          expect(params.kind, ExecutableKind.CLIENT);
        } else if (fileName == source2.fullName) {
          expect(params.kind, ExecutableKind.EITHER);
        } else if (fileName == source3.fullName) {
          expect(params.kind, ExecutableKind.SERVER);
        } else if (fileName == source4.fullName) {
          expect(params.kind, ExecutableKind.NOT_EXECUTABLE);
        } else if (fileName == source5.fullName) {
          var referencedFiles = params.referencedFiles;
          expect(referencedFiles, isNotNull);
          expect(referencedFiles.length, equals(2));
          expect(referencedFiles[0], equals(source6.fullName));
          expect(referencedFiles[1], equals(source7.fullName));
        }
      });

      ExecutionDomainHandler handler = new ExecutionDomainHandler(server);
      Request request =
          new ExecutionSetSubscriptionsParams([ExecutionService.LAUNCH_DATA])
              .toRequest('0');
      handler.handleRequest(request);

//      controller.add(null);
      expect(unsentNotifications, isEmpty);
    });
  });
}

/**
 * Return a matcher that will match an [ExecutableFile] if it has the given
 * [source] and [kind].
 */
Matcher isExecutableFile(Source source, ExecutableKind kind) {
  return new IsExecutableFile(source.fullName, kind);
}

/**
 * A matcher that will match an [ExecutableFile] if it has a specified [source]
 * and [kind].
 */
class IsExecutableFile extends Matcher {
  String expectedFile;
  ExecutableKind expectedKind;

  IsExecutableFile(this.expectedFile, this.expectedKind);

  @override
  Description describe(Description description) {
    return description.add('ExecutableFile($expectedFile, $expectedKind)');
  }

  @override
  bool matches(item, Map matchState) {
    if (item is! ExecutableFile) {
      return false;
    }
    return item.file == expectedFile && item.kind == expectedKind;
  }
}

/**
 * A [Source] that knows it's [fullName].
 */
class TestSource implements Source {
  String fullName;

  TestSource(this.fullName);

  @override
  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
}