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.context.computer;
  
  import com.github._1c_syntax.bsl.languageserver.context.DocumentContext;
  import com.github._1c_syntax.bsl.languageserver.diagnostics.BSLDiagnostic;
  import com.github._1c_syntax.bsl.languageserver.utils.NamedForkJoinWorkerThreadFactory;
  import jakarta.annotation.PostConstruct;
  import jakarta.annotation.PreDestroy;
  import lombok.extern.slf4j.Slf4j;
  import org.eclipse.lsp4j.Diagnostic;
  import org.springframework.beans.factory.annotation.Lookup;
  import org.springframework.stereotype.Component;
  
  import java.util.List;
  import java.util.concurrent.CompletableFuture;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.ForkJoinPool;
  import java.util.function.Predicate;
  import java.util.stream.Stream;
  
  @Component
  @Slf4j
  public abstract class DiagnosticComputer {
  
    private ExecutorService executorService;
  
    @PostConstruct
    private void init() {
      var factory = new NamedForkJoinWorkerThreadFactory("diagnostic-computer-");
      executorService = new ForkJoinPool(ForkJoinPool.getCommonPoolParallelism(), factory, null, true);
    }
  
    @PreDestroy
    private void onDestroy() {
      executorService.shutdown();
    }
  
    public List<Diagnostic> compute(DocumentContext documentContext) {
      return CompletableFuture
        .supplyAsync(() -> internalCompute(documentContext), executorService)
        .join();
    }
  
    private List<Diagnostic> internalCompute(DocumentContext documentContext) {
      DiagnosticIgnoranceComputer.Data diagnosticIgnorance = documentContext.getDiagnosticIgnorance();
  
      return diagnostics(documentContext).parallelStream()
        .flatMap((BSLDiagnostic diagnostic) -> {
          try {
            return diagnostic.getDiagnostics(documentContext).stream();
          } catch (RuntimeException e) {
            var message = String.format(
              "Diagnostic computation error.%nFile: %s%nDiagnostic: %s",
              documentContext.getUri(),
              diagnostic.getInfo().getCode()
            );
            LOGGER.error(message, e);
  
            return Stream.empty();
          }
        })
        .filter(Predicate.not(diagnosticIgnorance::diagnosticShouldBeIgnored))
        .toList();
  
    }
  
    @Lookup("diagnostics")
    protected abstract List<BSLDiagnostic> diagnostics(DocumentContext documentContext);
  }
  