// Copyright (c) 2019, 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.

import 'package:analysis_server/lsp_protocol/protocol_generated.dart';
import 'package:analysis_server/lsp_protocol/protocol_special.dart';
import 'package:analysis_server/src/lsp/handlers/handlers.dart';
import 'package:analysis_server/src/lsp/lsp_analysis_server.dart';

class WorkspaceFoldersHandler
    extends MessageHandler<DidChangeWorkspaceFoldersParams, void> {
  WorkspaceFoldersHandler(LspAnalysisServer server) : super(server);
  Method get handlesMessage => Method.workspace_didChangeWorkspaceFolders;

  @override
  DidChangeWorkspaceFoldersParams convertParams(Map<String, dynamic> json) =>
      DidChangeWorkspaceFoldersParams.fromJson(json);

  ErrorOr<void> handle(DidChangeWorkspaceFoldersParams params) {
    final added = params?.event?.added
        ?.map((wf) => Uri.parse(wf.uri).toFilePath())
        ?.toList();

    final removed = params?.event?.removed
        ?.map((wf) => Uri.parse(wf.uri).toFilePath())
        ?.toList();

    server.updateAnalysisRoots(added, removed);

    return success();
  }
}