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.DiagnosticParameter;
  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.parser.BSLParser;
  import org.antlr.v4.runtime.Token;
  import org.antlr.v4.runtime.tree.ParseTree;
  
  @DiagnosticMetadata(
    type = DiagnosticType.CODE_SMELL,
    severity = DiagnosticSeverity.MAJOR,
    minutesToFix = 30,
    tags = {
      DiagnosticTag.BADPRACTICE
    }
  )
  public class MethodSizeDiagnostic extends AbstractVisitorDiagnostic {
  
    private static final int MAX_METHOD_SIZE = 200;
  
    @DiagnosticParameter(
      type = Integer.class,
      defaultValue = "" + MAX_METHOD_SIZE
    )
    private int maxMethodSize = MAX_METHOD_SIZE;
  
    @Override
    public ParseTree visitProcedure(BSLParser.ProcedureContext ctx) {
      int methodSize = methodSize(ctx.subCodeBlock());
  
      if (methodSizeExceedsLimit(methodSize)) {
        diagnosticStorage.addDiagnostic(
          ctx.procDeclaration().subName(),
          info.getMessage(ctx.procDeclaration().subName().getText(), methodSize, maxMethodSize));
      }
  
      return ctx;
    }
  
    @Override
    public ParseTree visitFunction(BSLParser.FunctionContext ctx) {
      int methodSize = methodSize(ctx.subCodeBlock());
  
      if (methodSizeExceedsLimit(methodSize)) {
        diagnosticStorage.addDiagnostic(
          ctx.funcDeclaration().subName(),
          info.getMessage(ctx.funcDeclaration().subName().getText(), methodSize, maxMethodSize));
      }
  
      return ctx;
    }
  
    private boolean methodSizeExceedsLimit(int methodSize) {
      return methodSize > maxMethodSize;
    }
  
    private static int methodSize(BSLParser.SubCodeBlockContext ctx) {
      if (ctx.codeBlock().getChildCount() == 0) {
        return 0;
      }
      Token start = ctx.getStart();
      Token stop = ctx.getStop();
  
      return stop.getLine() - start.getLine();
    }
  
  }
  