// 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:process/process.dart';

import '../base/file_system.dart';
import '../base/platform.dart';
import '../doctor_validator.dart';
import 'vscode.dart';

class VsCodeValidator extends DoctorValidator {
  VsCodeValidator(this._vsCode) : super(_vsCode.productName);

  final VsCode _vsCode;

  static Iterable<DoctorValidator> installedValidators(
    FileSystem fileSystem,
    Platform platform,
    ProcessManager processManager,
  ) {
    return VsCode.allInstalled(
      fileSystem,
      platform,
      processManager,
    ).map<DoctorValidator>((VsCode vsCode) => VsCodeValidator(vsCode));
  }

  @override
  Future<ValidationResult> validateImpl() async {
    final List<ValidationMessage> validationMessages = List<ValidationMessage>.from(
      _vsCode.validationMessages,
    );

    final String vsCodeVersionText =
        _vsCode.version == null ? 'version unknown' : 'version ${_vsCode.version}';

    if (_vsCode.version == null) {
      validationMessages.add(const ValidationMessage.error('Unable to determine VS Code version.'));
    }

    return ValidationResult(
      ValidationType.success,
      validationMessages,
      statusInfo: vsCodeVersionText,
    );
  }
}