// Copyright (c) 2024, 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/src/services/correction/fix.dart';
import 'package:analysis_server_plugin/edit/dart/correction_producer.dart';
import 'package:analyzer/source/source_range.dart';
import 'package:analyzer_plugin/utilities/change_builder/change_builder_core.dart';
import 'package:analyzer_plugin/utilities/fixes/fixes.dart';

class RemoveComma extends ResolvedCorrectionProducer {
  final String commaKind;
  final String targetDescription;

  new emptyRecordLiteral({required CorrectionProducerContext context})
    : this._(context: context, targetDescription: 'empty record literals');
  new emptyRecordType({required CorrectionProducerContext context})
    : this._(context: context, targetDescription: 'empty record types');
  new representationField({required CorrectionProducerContext context})
    : this._(
        context: context,
        commaKind: 'trailing ',
        targetDescription: 'representation fields',
      );

  new _({
    required super.context,
    this.commaKind = '',
    required this.targetDescription,
  });

  @override
  CorrectionApplicability get applicability =>
      CorrectionApplicability.automatically;

  @override
  FixKind get fixKind => DartFixKind.removeComma;

  @override
  List<String>? get multiFixArguments => [commaKind, targetDescription];

  @override
  FixKind get multiFixKind => DartFixKind.removeCommaMulti;

  @override
  Future<void> compute(ChangeBuilder builder) async {
    var diagnostic = this.diagnostic;
    if (diagnostic == null) return;

    var problemMessage = diagnostic.problemMessage;

    await builder.addDartFileEdit(file, (builder) {
      builder.addDeletion(
        SourceRange(
          problemMessage.offset,
          // TODO(pq): consider a CorrectionUtils utility to get first non whitespace offset.
          problemMessage.length,
        ),
      );
    });
  }
}
