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.configuration.LanguageServerConfiguration;
  import com.github._1c_syntax.bsl.languageserver.context.DocumentContext;
  import com.github._1c_syntax.bsl.languageserver.diagnostics.CanonicalSpellingKeywordsDiagnostic;
  import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticCode;
  import com.github._1c_syntax.bsl.languageserver.diagnostics.metadata.DiagnosticInfo;
  import com.github._1c_syntax.bsl.languageserver.util.TestUtils;
  import com.github._1c_syntax.utils.StringInterner;
  import edu.umd.cs.findbugs.annotations.Nullable;
  import org.eclipse.lsp4j.CodeAction;
  import org.eclipse.lsp4j.CodeActionContext;
  import org.eclipse.lsp4j.CodeActionKind;
  import org.eclipse.lsp4j.CodeActionParams;
  import org.eclipse.lsp4j.Command;
  import org.eclipse.lsp4j.Diagnostic;
  import org.eclipse.lsp4j.Range;
  import org.eclipse.lsp4j.TextDocumentIdentifier;
  import org.eclipse.lsp4j.jsonrpc.messages.Either;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.boot.test.context.SpringBootTest;
  
  import java.util.Collections;
  import java.util.List;
  import java.util.stream.Collectors;
  
  import static org.assertj.core.api.Assertions.assertThat;
  
  @SpringBootTest
  class CodeActionProviderTest {
  
    @Autowired
    private CodeActionProvider codeActionProvider;
    @Autowired
    private LanguageServerConfiguration configuration;
    @Autowired
    private StringInterner stringInterner;
  
    private DocumentContext documentContext;
  
    @BeforeEach
    void init() {
      String filePath = "./src/test/resources/providers/codeAction.bsl";
      documentContext = TestUtils.getDocumentContextFromFile(filePath);
    }
  
    @Test
    void testGetCodeActions() {
  
      // given
      DiagnosticInfo diagnosticInfo = new DiagnosticInfo(
        CanonicalSpellingKeywordsDiagnostic.class,
        configuration,
        stringInterner);
      DiagnosticCode diagnosticCode = diagnosticInfo.getCode();
  
      List<Diagnostic> diagnostics = documentContext.getDiagnostics().stream()
        .filter(diagnostic -> diagnostic.getCode().equals(diagnosticCode))
        //  clean diagnostic tags array to emulate clear of tags property from the client
        .peek(diagnostic -> diagnostic.setTags(null))
        .collect(Collectors.toList());
  
      CodeActionParams params = new CodeActionParams();
      TextDocumentIdentifier textDocumentIdentifier = new TextDocumentIdentifier(documentContext.getUri().toString());
  
      CodeActionContext codeActionContext = new CodeActionContext();
  
      codeActionContext.setDiagnostics(diagnostics);
  
      params.setRange(new Range());
      params.setTextDocument(textDocumentIdentifier);
      params.setContext(codeActionContext);
  
      // when
      List<Either<Command, CodeAction>> codeActions = codeActionProvider.getCodeActions(params, documentContext);
  
      // then
      assertThat(codeActions)
        .extracting(Either::getRight)
        .hasSizeGreaterThanOrEqualTo(3)
        .anyMatch(codeAction -> codeAction.getDiagnostics().contains(diagnostics.get(0)))
        .anyMatch(codeAction -> codeAction.getDiagnostics().contains(diagnostics.get(1)))
        .anyMatch(codeAction -> codeAction.getKind().equals(CodeActionKind.QuickFix))
        .allMatch(codeAction -> (codeAction.getDiagnostics().size() == 1) == toBoolean(codeAction.getIsPreferred()))
      ;
    }
  
    @Test
    void testEmptyDiagnosticList() {
      // given
      CodeActionParams params = new CodeActionParams();
      TextDocumentIdentifier textDocumentIdentifier = new TextDocumentIdentifier(documentContext.getUri().toString());
  
      CodeActionContext codeActionContext = new CodeActionContext();
  
      codeActionContext.setDiagnostics(Collections.emptyList());
  
      params.setRange(new Range());
      params.setTextDocument(textDocumentIdentifier);
      params.setContext(codeActionContext);
  
      // when
      List<Either<Command, CodeAction>> codeActions = codeActionProvider.getCodeActions(params, documentContext);
  
      // then
      assertThat(codeActions)
        .filteredOn(codeAction -> codeAction.getRight().getKind().equals(CodeActionKind.QuickFix))
        .isEmpty();
    }
  
    @Test
    void testOnly() {
      // given
      CodeActionParams params = new CodeActionParams();
      TextDocumentIdentifier textDocumentIdentifier = new TextDocumentIdentifier(documentContext.getUri().toString());
  
      DiagnosticInfo diagnosticInfo = new DiagnosticInfo(
        CanonicalSpellingKeywordsDiagnostic.class,
        configuration,
        stringInterner);
      DiagnosticCode diagnosticCode = diagnosticInfo.getCode();
  
      List<Diagnostic> diagnostics = documentContext.getDiagnostics().stream()
        .filter(diagnostic -> diagnostic.getCode().equals(diagnosticCode))
        .collect(Collectors.toList());
  
      CodeActionContext codeActionContext = new CodeActionContext();
  
      codeActionContext.setOnly(List.of(CodeActionKind.Refactor));
      codeActionContext.setDiagnostics(diagnostics);
  
      params.setRange(new Range());
      params.setTextDocument(textDocumentIdentifier);
      params.setContext(codeActionContext);
  
      // when
      List<Either<Command, CodeAction>> codeActions = codeActionProvider.getCodeActions(params, documentContext);
  
      // then
      assertThat(codeActions)
        .extracting(Either::getRight)
        .extracting(CodeAction::getKind)
        .containsOnly(CodeActionKind.Refactor)
      ;
    }
  
    private static boolean toBoolean(@Nullable Boolean value) {
      if (value == null) {
        return false;
      }
      return value;
    }
  }