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.providers;
  
  import com.github._1c_syntax.bsl.languageserver.context.DocumentContext;
  import com.github._1c_syntax.bsl.languageserver.context.symbol.SourceDefinedSymbol;
  import com.github._1c_syntax.bsl.languageserver.references.ReferenceResolver;
  import com.github._1c_syntax.bsl.languageserver.references.model.Reference;
  import lombok.RequiredArgsConstructor;
  import org.eclipse.lsp4j.DefinitionParams;
  import org.eclipse.lsp4j.LocationLink;
  import org.eclipse.lsp4j.Position;
  import org.springframework.stereotype.Component;
  
  import java.util.Collections;
  import java.util.List;
  
  @Component
  @RequiredArgsConstructor
  public class DefinitionProvider {
  
    private final ReferenceResolver referenceResolver;
  
    public List<LocationLink> getDefinition(DocumentContext documentContext, DefinitionParams params) {
      Position position = params.getPosition();
  
      return referenceResolver.findReference(documentContext.getUri(), position)
        .filter(Reference::isSourceDefinedSymbolReference)
        .map(DefinitionProvider::toLocationLink)
        .map(Collections::singletonList)
        .orElse(Collections.emptyList());
    }
  
    private static LocationLink toLocationLink(Reference reference) {
      SourceDefinedSymbol symbol = (SourceDefinedSymbol) reference.getSymbol();
  
      return new LocationLink(
        symbol.getOwner().getUri().toString(),
        symbol.getRange(),
        symbol.getSelectionRange(),
        reference.getSelectionRange()
      );
    }
  }
  