content: /* ###
   * IP: GHIDRA
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package firmware.uefi_fv;
  
  import java.io.IOException;
  
  import ghidra.app.util.bin.BinaryReader;
  import ghidra.formats.gfilesystem.FileSystemIndexHelper;
  import ghidra.formats.gfilesystem.GFile;
  
  /**
   * Factory for constructing the correct FFSSection based off the type field in the common FFS
   * section header.
   */
  public class FFSSectionFactory {
  	private FFSSectionFactory() {}
  
  	/**
  	 * Constructs a FFSSection from a specified BinaryReader by checking the type field in the
  	 * common FFS section header. This should only be used for checking if a FFS section is a UI
  	 * section.
  	 *
  	 * @param reader the specified BinaryReader
  	 * @return       the parsed FFSSection
  	 */
  	public static FFSSection parseSection(BinaryReader reader) throws IOException {
  		byte type = reader.readByte(reader.getPointerIndex() + 3);
  		switch (type) {
  			case UEFIFFSConstants.SectionType.USER_INTERFACE:
  				return new FFSUISection(reader);
  			default:
  				return new FFSGenericSection(reader);
  		}
  	}
  
  	/**
  	 * Constructs a FFSSection from a specified BinaryReader by checking the type field in the
  	 * common FFS section header, and adds it to the specified FileSystemIndexHelper.
  	 *
  	 * @param reader the specified BinaryReader
  	 * @param fsih   the specified {@link FileSystemIndexHelper} that handles files
  	 * @param parent the parent directory in the specified FileSystemIndexHelper
  	 * @return       the parsed FFSSection
  	 */
  	public static FFSSection parseSection(BinaryReader reader, FileSystemIndexHelper<UEFIFile> fsih, GFile parent)
  			throws IOException {
  		byte type = reader.readByte(reader.getPointerIndex() + 3);
  		switch (type) {
  			case UEFIFFSConstants.SectionType.COMPRESSION:
  				return new FFSCompressedSection(reader, fsih, parent);
  			case UEFIFFSConstants.SectionType.GUID_DEFINED:
  				return new FFSGUIDDefinedSection(reader, fsih, parent);
  			case UEFIFFSConstants.SectionType.VERSION:
  				return new FFSVersionSection(reader, fsih, parent);
  			case UEFIFFSConstants.SectionType.USER_INTERFACE:
  				return new FFSUISection(reader, fsih, parent);
  			case UEFIFFSConstants.SectionType.FIRMWARE_VOLUME_IMAGE:
  				return new FFSVolumeImageSection(reader, fsih, parent);
  			case UEFIFFSConstants.SectionType.FREEFORM_SUBTYPE_GUID:
  				return new FFSFreeformSubtypeSection(reader, fsih, parent);
  			default:
  				return new FFSGenericSection(reader, fsih, parent);
  		}
  	}
  }
  