content: /*
   * This file is a part of BSL Language Server.
   *
   * Copyright (c) 2018-2025
   * Alexey Sosnoviy <labotamy@gmail.com>, Nikita Fedkin <nixel2007@gmail.com> and contributors
   *
   * SPDX-License-Identifier: LGPL-3.0-or-later
   *
   * BSL Language Server is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 3.0 of the License, or (at your option) any later version.
   *
   * BSL Language Server is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with BSL Language Server.
   */
  package com.github._1c_syntax.bsl.languageserver.diagnostics;
  
  import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticMetadata;
  import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticScope;
  import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticSeverity;
  import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticTag;
  import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticType;
  import com.github._1c_syntax.bsl.languageserver.utils.DiagnosticHelper;
  import com.github._1c_syntax.bsl.languageserver.utils.Ranges;
  import com.github._1c_syntax.bsl.languageserver.utils.RelatedInformation;
  import com.github._1c_syntax.bsl.languageserver.utils.Trees;
  import com.github._1c_syntax.bsl.parser.BSLParser;
  import com.github._1c_syntax.bsl.parser.BSLParser.NewExpressionContext;
  import jakarta.annotation.PostConstruct;
  import org.antlr.v4.runtime.tree.ParseTree;
  import org.eclipse.lsp4j.DiagnosticRelatedInformation;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.stream.Collectors;
  
  /**
   * @author Leon Chagelishvili &lt;lChagelishvily@gmail.com&gt;
   */
  @DiagnosticMetadata(
    type = DiagnosticType.CODE_SMELL,
    severity = DiagnosticSeverity.MINOR,
    scope = DiagnosticScope.ALL,
    minutesToFix = 10,
    tags = {
      DiagnosticTag.BADPRACTICE,
      DiagnosticTag.BRAINOVERLOAD
    }
  )
  public class NestedConstructorsInStructureDeclarationDiagnostic extends AbstractVisitorDiagnostic {
  
    private String relatedMessage;
  
    @PostConstruct
    public void init() {
      relatedMessage = this.info.getResourceString("nestedConstructorRelatedMessage");
    }
  
    @Override
    public ParseTree visitNewExpression(NewExpressionContext ctx) {
  
      BSLParser.TypeNameContext typeName = ctx.typeName();
  
      if (typeName == null
        || !(DiagnosticHelper.isStructureType(typeName) || DiagnosticHelper.isFixedStructureType(typeName))
      ) {
        return super.visitNewExpression(ctx);
      }
  
      BSLParser.DoCallContext structureDoCallContext = ctx.doCall();
  
      if (structureDoCallContext == null) {
        return ctx;
      }
  
      if (structureDoCallContext.callParamList().callParam().size() <= 1) {
        return super.visitNewExpression(ctx);
      }
  
      List<DiagnosticRelatedInformation> relatedInformation = new ArrayList<>();
      relatedInformation.add(RelatedInformation.create(
        documentContext.getUri(),
        Ranges.create(ctx),
        relatedMessage
      ));
      structureDoCallContext.callParamList().callParam().stream()
        .filter(tree -> tree.start.getType() == BSLParser.NEW_KEYWORD)
        .map(tree -> Trees.findAllRuleNodes(tree, BSLParser.RULE_newExpression))
        .filter(tree -> !tree.isEmpty())
        .map(tree -> (ParseTree) tree.toArray()[0])
        .map(tree -> (NewExpressionContext) tree)
        .filter(NestedConstructorsInStructureDeclarationDiagnostic::hasParams)
        .map(newContext -> RelatedInformation.create(
          documentContext.getUri(),
          Ranges.create(newContext),
          relatedMessage
        ))
        .collect(Collectors.toCollection(() -> relatedInformation));
  
      if (relatedInformation.size() > 1) {
        diagnosticStorage.addDiagnostic(ctx, relatedInformation);
      }
  
      return super.visitNewExpression(ctx);
    }
  
    private static boolean hasParams(NewExpressionContext newContext) {
      BSLParser.DoCallContext doCallContext = newContext.doCall();
      return doCallContext != null
        && doCallContext.callParamList().callParam().stream().anyMatch(param -> param.getChildCount() > 0);
    }
  
  }
  