/*
    * Copyright 2018-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.hardware.platform.mac;
   
   import java.util.ArrayList;
   import java.util.List;
   
  import oshi.annotation.concurrent.Immutable;
  import oshi.hardware.SoundCard;
  import oshi.hardware.common.AbstractSoundCard;
  import oshi.util.FileUtil;
  import oshi.util.ParseUtil;
  
  /**
   * Sound card data obtained via AppleHDA kext
   */
  @Immutable
  final class MacSoundCard extends AbstractSoundCard {
  
      private static final String APPLE = "Apple Inc.";
  
      /**
       * Constructor for MacSoundCard.
       *
       * @param kernelVersion The version
       * @param name          The name
       * @param codec         The codec
       */
      MacSoundCard(String kernelVersion, String name, String codec) {
          super(kernelVersion, name, codec);
      }
  
      /**
       * public method used by {@link oshi.hardware.common.AbstractHardwareAbstractionLayer} to access the sound cards.
       *
       * @return List of {@link oshi.hardware.platform.mac.MacSoundCard} objects.
       */
      public static List<SoundCard> getSoundCards() {
          List<SoundCard> soundCards = new ArrayList<>();
  
          // /System/Library/Extensions/AppleHDA.kext/Contents/Info.plist
  
          // ..... snip ....
          // <dict>
          // <key>com.apple.driver.AppleHDAController</key>
          // <string>1.7.2a1</string>
  
          String manufacturer = APPLE;
          String kernelVersion = "AppleHDAController";
          String codec = "AppleHDACodec";
  
          boolean version = false;
          String versionMarker = "<key>com.apple.driver.AppleHDAController</key>";
  
          for (final String checkLine : FileUtil
                  .readFile("/System/Library/Extensions/AppleHDA.kext/Contents/Info.plist")) {
              if (checkLine.contains(versionMarker)) {
                  version = true;
                  continue;
              }
              if (version) {
                  kernelVersion = "AppleHDAController "
                          + ParseUtil.getTextBetweenStrings(checkLine, "<string>", "</string>");
                  version = false;
              }
          }
          soundCards.add(new MacSoundCard(kernelVersion, manufacturer, codec));
  
          return soundCards;
      }
  }