/*
    * SPDX-FileCopyrightText: none
    * SPDX-License-Identifier: CC0-1.0
    */
   
   package gov.nist.secauto.metaschema.cli;
   
   import gov.nist.secauto.metaschema.cli.commands.MetaschemaCommands;
   import gov.nist.secauto.metaschema.cli.processor.CLIProcessor;
  import gov.nist.secauto.metaschema.cli.processor.ExitStatus;
  import gov.nist.secauto.metaschema.cli.processor.command.CommandService;
  import gov.nist.secauto.metaschema.core.MetaschemaConstants;
  import gov.nist.secauto.metaschema.core.MetaschemaJavaVersion;
  import gov.nist.secauto.metaschema.core.model.MetaschemaVersion;
  import gov.nist.secauto.metaschema.core.util.IVersionInfo;
  
  import java.io.PrintStream;
  import java.util.LinkedHashMap;
  import java.util.Map;
  
  import edu.umd.cs.findbugs.annotations.NonNull;
  import edu.umd.cs.findbugs.annotations.Nullable;
  
  /**
   * The main entry point for the CLI application.
   */
  @SuppressWarnings("PMD.ShortClassName")
  public final class CLI {
    /**
     * The main command line entry point.
     *
     * @param args
     *          the command line arguments
     */
    public static void main(String[] args) {
      System.exit(runCli(args).getExitCode().getStatusCode());
    }
  
    /**
     * Execute a command line.
     *
     * @param args
     *          the command line arguments
     * @return the execution result
     */
    @NonNull
    public static ExitStatus runCli(String... args) {
      return runCli(null, args);
    }
  
    /**
     * Execute a command line with a custom output stream.
     * <p>
     * This method is useful for testing, allowing output to be captured instead of
     * being written directly to the console.
     *
     * @param outputStream
     *          the output stream to write to, or {@code null} to use the default
     *          console
     * @param args
     *          the command line arguments
     * @return the execution result
     */
    @NonNull
    public static ExitStatus runCli(@Nullable PrintStream outputStream, String... args) {
      System.setProperty("java.util.logging.manager", "org.apache.logging.log4j.jul.LogManager");
  
      @SuppressWarnings("PMD.UseConcurrentHashMap")
      Map<String, IVersionInfo> versions = new LinkedHashMap<>();
      versions.put(CLIProcessor.COMMAND_VERSION, new MetaschemaJavaVersion());
      versions.put(MetaschemaConstants.METASCHEMA_NAMESPACE, new MetaschemaVersion());
  
      CLIProcessor processor = new CLIProcessor("metaschema-cli", versions, outputStream);
      MetaschemaCommands.COMMANDS.forEach(processor::addCommandHandler);
  
      CommandService.getInstance().getCommands().stream().forEach(command -> {
        assert command != null;
        processor.addCommandHandler(command);
      });
      return processor.process(args);
    }
  
    private CLI() {
      // disable construction
    }
  }