/*
    * Copyright 2016-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.hardware.platform.mac;
   
   import static oshi.util.Memoizer.memoize;
   
   import java.nio.charset.StandardCharsets;
  import java.util.function.Supplier;
  
  import com.sun.jna.Native;
  import com.sun.jna.platform.mac.IOKit.IORegistryEntry;
  import com.sun.jna.platform.mac.IOKitUtil;
  
  import oshi.annotation.concurrent.Immutable;
  import oshi.hardware.common.AbstractBaseboard;
  import oshi.util.Constants;
  import oshi.util.Util;
  import oshi.util.tuples.Quartet;
  
  /**
   * Baseboard data obtained from ioreg
   */
  @Immutable
  final class MacBaseboard extends AbstractBaseboard {
  
      private final Supplier<Quartet<String, String, String, String>> manufModelVersSerial = memoize(
              MacBaseboard::queryPlatform);
  
      @Override
      public String getManufacturer() {
          return manufModelVersSerial.get().getA();
      }
  
      @Override
      public String getModel() {
          return manufModelVersSerial.get().getB();
      }
  
      @Override
      public String getVersion() {
          return manufModelVersSerial.get().getC();
      }
  
      @Override
      public String getSerialNumber() {
          return manufModelVersSerial.get().getD();
      }
  
      private static Quartet<String, String, String, String> queryPlatform() {
          String manufacturer = null;
          String model = null;
          String version = null;
          String serialNumber = null;
  
          IORegistryEntry platformExpert = IOKitUtil.getMatchingService("IOPlatformExpertDevice");
          if (platformExpert != null) {
              byte[] data = platformExpert.getByteArrayProperty("manufacturer");
              if (data != null) {
                  manufacturer = Native.toString(data, StandardCharsets.UTF_8);
              }
              data = platformExpert.getByteArrayProperty("board-id");
              if (data != null) {
                  model = Native.toString(data, StandardCharsets.UTF_8);
              }
              if (Util.isBlank(model)) {
                  data = platformExpert.getByteArrayProperty("model-number");
                  if (data != null) {
                      model = Native.toString(data, StandardCharsets.UTF_8);
                  }
              }
              data = platformExpert.getByteArrayProperty("version");
              if (data != null) {
                  version = Native.toString(data, StandardCharsets.UTF_8);
              }
              data = platformExpert.getByteArrayProperty("mlb-serial-number");
              if (data != null) {
                  serialNumber = Native.toString(data, StandardCharsets.UTF_8);
              }
              if (Util.isBlank(serialNumber)) {
                  serialNumber = platformExpert.getStringProperty("IOPlatformSerialNumber");
              }
              platformExpert.release();
          }
          return new Quartet<>(Util.isBlank(manufacturer) ? "Apple Inc." : manufacturer,
                  Util.isBlank(model) ? Constants.UNKNOWN : model, Util.isBlank(version) ? Constants.UNKNOWN : version,
                  Util.isBlank(serialNumber) ? Constants.UNKNOWN : serialNumber);
      }
  }