/*
    * Copyright 2016-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.hardware.platform.unix.freebsd;
   
   import static oshi.util.Memoizer.memoize;
   
   import java.util.function.Supplier;
  
  import oshi.annotation.concurrent.Immutable;
  import oshi.hardware.common.AbstractFirmware;
  import oshi.util.Constants;
  import oshi.util.ExecutingCommand;
  import oshi.util.ParseUtil;
  import oshi.util.Util;
  import oshi.util.tuples.Triplet;
  
  /**
   * Firmware information from dmidecode
   */
  @Immutable
  final class FreeBsdFirmware extends AbstractFirmware {
  
      private final Supplier<Triplet<String, String, String>> manufVersRelease = memoize(FreeBsdFirmware::readDmiDecode);
  
      @Override
      public String getManufacturer() {
          return manufVersRelease.get().getA();
      }
  
      @Override
      public String getVersion() {
          return manufVersRelease.get().getB();
      }
  
      @Override
      public String getReleaseDate() {
          return manufVersRelease.get().getC();
      }
  
      /*
       * Name and Description not set
       */
  
      private static Triplet<String, String, String> readDmiDecode() {
          String manufacturer = null;
          String version = null;
          String releaseDate = "";
  
          // $ sudo dmidecode -t bios
          // # dmidecode 3.0
          // Scanning /dev/mem for entry point.
          // SMBIOS 2.7 present.
          //
          // Handle 0x0000, DMI type 0, 24 bytes
          // BIOS Information
          // Vendor: Parallels Software International Inc.
          // Version: 11.2.1 (32626)
          // Release Date: 07/15/2016
          // ... <snip> ...
          // BIOS Revision: 11.2
          // Firmware Revision: 11.2
  
          final String manufacturerMarker = "Vendor:";
          final String versionMarker = "Version:";
          final String releaseDateMarker = "Release Date:";
  
          // Only works with root permissions but it's all we've got
          for (final String checkLine : ExecutingCommand.runNative("dmidecode -t bios")) {
              if (checkLine.contains(manufacturerMarker)) {
                  manufacturer = checkLine.split(manufacturerMarker)[1].trim();
              } else if (checkLine.contains(versionMarker)) {
                  version = checkLine.split(versionMarker)[1].trim();
              } else if (checkLine.contains(releaseDateMarker)) {
                  releaseDate = checkLine.split(releaseDateMarker)[1].trim();
              }
          }
          releaseDate = ParseUtil.parseMmDdYyyyToYyyyMmDD(releaseDate);
          return new Triplet<>(Util.isBlank(manufacturer) ? Constants.UNKNOWN : manufacturer,
                  Util.isBlank(version) ? Constants.UNKNOWN : version,
                  Util.isBlank(releaseDate) ? Constants.UNKNOWN : releaseDate);
      }
  }