/*
    * Copyright 2020-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.hardware.platform.unix.aix;
   
   import java.util.ArrayList;
   import java.util.Arrays;
   import java.util.Collections;
  import java.util.List;
  import java.util.function.Supplier;
  
  import oshi.annotation.concurrent.Immutable;
  import oshi.hardware.UsbDevice;
  import oshi.hardware.common.AbstractUsbDevice;
  import oshi.util.Constants;
  import oshi.util.ParseUtil;
  
  /**
   * AIX Usb Device
   */
  @Immutable
  public class AixUsbDevice extends AbstractUsbDevice {
  
      public AixUsbDevice(String name, String vendor, String vendorId, String productId, String serialNumber,
              String uniqueDeviceId, List<UsbDevice> connectedDevices) {
          super(name, vendor, vendorId, productId, serialNumber, uniqueDeviceId, connectedDevices);
      }
  
      /**
       * Instantiates a list of {@link oshi.hardware.UsbDevice} objects, representing devices connected via a usb port
       * (including internal devices).
       * <p>
       * If the value of {@code tree} is true, the top level devices returned from this method are the USB Controllers;
       * connected hubs and devices in its device tree share that controller's bandwidth. If the value of {@code tree} is
       * false, USB devices (not controllers) are listed in a single flat list.
       *
       * @param tree  If true, returns a list of controllers, which requires recursive iteration of connected devices. If
       *              false, returns a flat list of devices excluding controllers.
       * @param lscfg A memoized lscfg list
       * @return a list of {@link oshi.hardware.UsbDevice} objects.
       */
      public static List<UsbDevice> getUsbDevices(boolean tree, Supplier<List<String>> lscfg) {
          List<UsbDevice> deviceList = new ArrayList<>();
          for (String line : lscfg.get()) {
              String s = line.trim();
              if (s.startsWith("usb")) {
                  String[] split = ParseUtil.whitespaces.split(s, 3);
                  if (split.length == 3) {
                      deviceList.add(new AixUsbDevice(split[2], Constants.UNKNOWN, Constants.UNKNOWN, Constants.UNKNOWN,
                              Constants.UNKNOWN, split[0], Collections.emptyList()));
                  }
              }
          }
          if (tree) {
              return Arrays.asList(new AixUsbDevice("USB Controller", "", "0000", "0000", "", "", deviceList));
          }
          return deviceList;
      }
  }