// Copyright (c) 2020, 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/dart/data_driven.dart';
import 'package:analysis_server/src/services/correction/fix.dart';
import 'package:analysis_server/src/services/correction/fix/data_driven/code_template.dart';
import 'package:analysis_server/src/services/correction/fix/data_driven/transform.dart';
import 'package:analysis_server/src/services/correction/fix/data_driven/transform_set.dart';
import 'package:analysis_server/src/services/correction/fix/data_driven/transform_set_manager.dart';
import 'package:analyzer/error/error.dart';
import 'package:analyzer/src/dart/error/hint_codes.dart';
import 'package:analyzer_plugin/utilities/fixes/fixes.dart';

import '../fix_processor.dart';

/// A base class defining support for writing fix processor tests for
/// data-driven fixes.
abstract class DataDrivenFixProcessorTest extends FixProcessorTest {
  /// Return the URI used to import the library created by [setPackageContent].
  String get importUri => 'package:p/lib.dart';

  @override
  FixKind get kind => DartFixKind.DATA_DRIVEN;

  /// Add the file containing the data used by the data-driven fix with the
  /// given [content].
  void addPackageDataFile(String content) {
    newFile('$workspaceRootPath/p/lib/${TransformSetManager.dataFileName}',
        content: content);
  }

  /// Return a code template that will produce the given [text].
  CodeTemplate codeTemplate(String text) {
    return CodeTemplate(
        CodeTemplateKind.expression, [TemplateText(text)], null);
  }

  /// A method that can be used as an error filter to ignore any unused_import
  /// diagnostics.
  bool ignoreUnusedImport(AnalysisError error) =>
      error.errorCode != HintCode.UNUSED_IMPORT;

  /// Set the content of the library that defines the element referenced by the
  /// data on which this test is based.
  void setPackageContent(String content) {
    newFile('$workspaceRootPath/p/lib/lib.dart', content: content);
    writeTestPackageConfig(
      config: PackageConfigFileBuilder()
        ..add(name: 'p', rootPath: '$workspaceRootPath/p'),
    );
  }

  /// Set the data on which this test is based.
  void setPackageData(Transform transform) {
    DataDriven.transformSetsForTests = [
      TransformSet()..addTransform(transform)
    ];
  }

  @override
  void tearDown() {
    DataDriven.transformSetsForTests = null;
    super.tearDown();
  }
}