/*
    * Copyright 2020-2022 The OSHI Project Contributors
    * SPDX-License-Identifier: MIT
    */
   package oshi.hardware.platform.unix.solaris;
   
   import java.util.ArrayList;
   import java.util.List;
   
  import oshi.annotation.concurrent.Immutable;
  import oshi.hardware.GraphicsCard;
  import oshi.hardware.common.AbstractGraphicsCard;
  import oshi.util.Constants;
  import oshi.util.ExecutingCommand;
  import oshi.util.ParseUtil;
  
  /**
   * Graphics Card info obtained from prtconf
   */
  @Immutable
  final class SolarisGraphicsCard extends AbstractGraphicsCard {
  
      private static final String PCI_CLASS_DISPLAY = "0003";
  
      /**
       * Constructor for SolarisGraphicsCard
       *
       * @param name        The name
       * @param deviceId    The device ID
       * @param vendor      The vendor
       * @param versionInfo The version info
       * @param vram        The VRAM
       */
      SolarisGraphicsCard(String name, String deviceId, String vendor, String versionInfo, long vram) {
          super(name, deviceId, vendor, versionInfo, vram);
      }
  
      /**
       * public method used by {@link oshi.hardware.common.AbstractHardwareAbstractionLayer} to access the graphics cards.
       *
       * @return List of {@link oshi.hardware.platform.unix.solaris.SolarisGraphicsCard} objects.
       */
      public static List<GraphicsCard> getGraphicsCards() {
          List<GraphicsCard> cardList = new ArrayList<>();
          // Enumerate all devices and add if required
          List<String> devices = ExecutingCommand.runNative("prtconf -pv");
          if (devices.isEmpty()) {
              return cardList;
          }
          String name = "";
          String vendorId = "";
          String productId = "";
          String classCode = "";
          List<String> versionInfoList = new ArrayList<>();
          for (String line : devices) {
              // Node 0x... identifies start of a new device. Save previous if it's a graphics
              // card
              if (line.contains("Node 0x")) {
                  if (PCI_CLASS_DISPLAY.equals(classCode)) {
                      cardList.add(new SolarisGraphicsCard(name.isEmpty() ? Constants.UNKNOWN : name,
                              productId.isEmpty() ? Constants.UNKNOWN : productId,
                              vendorId.isEmpty() ? Constants.UNKNOWN : vendorId,
                              versionInfoList.isEmpty() ? Constants.UNKNOWN : String.join(", ", versionInfoList), 0L));
                  }
                  // Reset strings
                  name = "";
                  vendorId = Constants.UNKNOWN;
                  productId = Constants.UNKNOWN;
                  classCode = "";
                  versionInfoList.clear();
              } else {
                  String[] split = line.trim().split(":", 2);
                  if (split.length == 2) {
                      if (split[0].equals("model")) {
                          // This is preferred, always set it
                          name = ParseUtil.getSingleQuoteStringValue(line);
                      } else if (split[0].equals("name")) {
                          // Name is backup for model if model doesn't exist, so only
                          // put if name blank
                          if (name.isEmpty()) {
                              name = ParseUtil.getSingleQuoteStringValue(line);
                          }
                      } else if (split[0].equals("vendor-id")) {
                          // Format: vendor-id: 00008086
                          vendorId = "0x" + line.substring(line.length() - 4);
                      } else if (split[0].equals("device-id")) {
                          // Format: device-id: 00002440
                          productId = "0x" + line.substring(line.length() - 4);
                      } else if (split[0].equals("revision-id")) {
                          // Format: revision-id: 00000002
                          versionInfoList.add(line.trim());
                      } else if (split[0].equals("class-code")) {
                          // Format: 00030000
                          // Display class is 0003xx, first 6 bytes of this code
                          classCode = line.substring(line.length() - 8, line.length() - 4);
                      }
                  }
              }
          }
         // In case we reached end before saving
         if (PCI_CLASS_DISPLAY.equals(classCode)) {
             cardList.add(new SolarisGraphicsCard(name.isEmpty() ? Constants.UNKNOWN : name,
                     productId.isEmpty() ? Constants.UNKNOWN : productId,
                     vendorId.isEmpty() ? Constants.UNKNOWN : vendorId,
                     versionInfoList.isEmpty() ? Constants.UNKNOWN : String.join(", ", versionInfoList), 0L));
         }
         return cardList;
     }
 }