/*
    * 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.function.Supplier;
  
  import oshi.annotation.concurrent.Immutable;
  import oshi.hardware.Baseboard;
  import oshi.hardware.Firmware;
  import oshi.hardware.common.AbstractComputerSystem;
  import oshi.hardware.platform.unix.UnixBaseboard;
  import oshi.util.Constants;
  import oshi.util.platform.unix.openbsd.OpenBsdSysctlUtil;
  
  /**
   * OpenBSD ComputerSystem implementation
   */
  @Immutable
  public class OpenBsdComputerSystem extends AbstractComputerSystem {
  
      private final Supplier<String> manufacturer = memoize(OpenBsdComputerSystem::queryManufacturer);
  
      private final Supplier<String> model = memoize(OpenBsdComputerSystem::queryModel);
  
      private final Supplier<String> serialNumber = memoize(OpenBsdComputerSystem::querySerialNumber);
  
      private final Supplier<String> uuid = memoize(OpenBsdComputerSystem::queryUUID);
  
      @Override
      public String getManufacturer() {
          return manufacturer.get();
      }
  
      @Override
      public String getModel() {
          return model.get();
      }
  
      @Override
      public String getSerialNumber() {
          return serialNumber.get();
      }
  
      @Override
      public String getHardwareUUID() {
          return uuid.get();
      }
  
      @Override
      protected Firmware createFirmware() {
          return new OpenBsdFirmware();
      }
  
      @Override
      protected Baseboard createBaseboard() {
          return new UnixBaseboard(manufacturer.get(), model.get(), serialNumber.get(),
                  OpenBsdSysctlUtil.sysctl("hw.product", Constants.UNKNOWN));
      }
  
      private static String queryManufacturer() {
          return OpenBsdSysctlUtil.sysctl("hw.vendor", Constants.UNKNOWN);
      }
  
      private static String queryModel() {
          return OpenBsdSysctlUtil.sysctl("hw.version", Constants.UNKNOWN);
      }
  
      private static String querySerialNumber() {
          return OpenBsdSysctlUtil.sysctl("hw.serialno", Constants.UNKNOWN);
      }
  
      private static String queryUUID() {
          return OpenBsdSysctlUtil.sysctl("hw.uuid", Constants.UNKNOWN);
      }
  }