/*
    * Copyright 2021-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.hardware.platform.unix.openbsd;
   
   import static oshi.util.Memoizer.memoize;
   
   import java.util.List;
  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;
  
  /**
   * OpenBSD Firmware implementation
   */
  @Immutable
  public class OpenBsdFirmware extends AbstractFirmware {
      private final Supplier<Triplet<String, String, String>> manufVersRelease = memoize(OpenBsdFirmware::readDmesg);
  
      @Override
      public String getManufacturer() {
          return manufVersRelease.get().getA();
      }
  
      @Override
      public String getVersion() {
          return manufVersRelease.get().getB();
      }
  
      @Override
      public String getReleaseDate() {
          return manufVersRelease.get().getC();
      }
  
      private static Triplet<String, String, String> readDmesg() {
          String version = null;
          String vendor = null;
          String releaseDate = "";
  
          List<String> dmesg = ExecutingCommand.runNative("dmesg");
          for (String line : dmesg) {
              // bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdcc0e000 (67 entries)
              // bios0: vendor LENOVO version "GLET90WW (2.44 )" date 09/13/2017
              // bios0: LENOVO 20AWA08J00
              if (line.startsWith("bios0: vendor")) {
                  version = ParseUtil.getStringBetween(line, '"');
                  releaseDate = ParseUtil.parseMmDdYyyyToYyyyMmDD(ParseUtil.parseLastString(line));
                  vendor = line.split("vendor")[1].trim();
              }
          }
          return new Triplet<>(Util.isBlank(vendor) ? Constants.UNKNOWN : vendor,
                  Util.isBlank(version) ? Constants.UNKNOWN : version,
                  Util.isBlank(releaseDate) ? Constants.UNKNOWN : releaseDate);
      }
  }