pub(all) suberror IsoError {
  Truncated
  BadBothEndian
  BadSignature
  BadDescriptor(Int)
  NotFound(String)
  NotDirectory(String)
  IsDirectory(String)
  IsSymlink(String)
  HostIoError(String)
  BadDirectoryRecord(Int)
  UnsupportedLayout(String)
}

pub struct BootEntry {
  platform_id : Int
  bootable : Bool
  media_type : Int
  sector_count : Int
  load_lba : Int
}

pub struct BootInfo {
  catalog_lba : Int
  platform_id : Int
  bootable : Bool
  media_type : Int
  load_segment : Int
  sector_count : Int
  load_lba : Int
  entries : Array[BootEntry]
}

pub struct ByteReader {
  data : Bytes
  pos : Int
}

pub struct DirectoryRecord {
  extent : Int
  size : Int
  flags : Int
  name : String
  date : RecordDate
  system_use : Bytes
  posix_mode : Int?
  symlink_target : String?
}

pub struct IsoBuilder {
  volume_id : String
  joliet : Bool
  rock_ridge : Bool
  boot_path : String?
  efi_path : String?
  boot_load_sectors : Int
  boot_platform : Int
  name_level : Int
  rr_version : Int
  allow_deep_paths : Bool
  boot_info_table : Bool
  dirs : Array[String]
  files : Array[(String, Bytes)]
  symlinks : Array[(String, String)]
}

pub struct IsoImage {
  data : Bytes
  volume_id : String
  block_size : Int
  volume_space_size : Int
  root : DirectoryRecord
  joliet_root : DirectoryRecord?
  joliet_level : Int
  rock_ridge : Bool
}

pub struct JolietDescriptor {
  level : Int
  root : DirectoryRecord
}

pub struct PrimaryVolumeDescriptor {
  volume_id : String
  volume_space_size : Int
  logical_block_size : Int
  path_table_size : Int
  root : DirectoryRecord
}

pub struct RecordDate {
  year : Int
  month : Int
  day : Int
  hour : Int
  minute : Int
  second : Int
  gmt_offset_quarters : Int
}

pub struct RockRidge {
  name : String?
  mode : Int?
  symlink : String?
  present : Bool
}

pub struct UdfEntry {
  name : String
  is_dir : Bool
  size : Int
}

pub struct UdfExtent {
  length : Int
  location : Int
  partition : Int
}

pub struct UdfImage {
  data : Bytes
  block_size : Int
  partition_start : Int
  root : UdfExtent
}

pub struct ValidationReport {
  directories : Int
  files : Int
  symlinks : Int
  total_bytes : Int
  problems : Array[String]
}

pub struct WalkEntry {
  path : String
  is_dir : Bool
  is_symlink : Bool
  size : Int
}

let SECTOR_SIZE : Int

let VOLUME_DESCRIPTOR_START_LBA : Int

fn block_offset(block : Int, block_size : Int, limit : Int) -> Int raise IsoError

fn decode_ucs2_be(raw : Bytes) -> String

fn extent_offset(block : Int, size : Int, block_size : Int, limit : Int) -> Int raise IsoError

fn find_boot_catalog_lba(data : Bytes) -> Int? raise IsoError

fn find_joliet_descriptor(data : Bytes) -> JolietDescriptor? raise IsoError

fn normalize_iso_name(raw : String) -> String

fn normalize_path(path : String) -> String

fn parse_boot_catalog(data : Bytes, catalog_lba : Int) -> BootInfo raise IsoError

fn parse_directory_record(reader : ByteReader) -> (DirectoryRecord, Int) raise IsoError

fn parse_directory_record_in(reader : ByteReader, joliet : Bool) -> (DirectoryRecord, Int) raise IsoError

fn parse_primary_volume_descriptor(data : Bytes, lba : Int) -> PrimaryVolumeDescriptor raise IsoError

fn parse_rock_ridge(data : Bytes, block_size : Int, system_use : Bytes) -> RockRidge raise IsoError

fn parse_susp(data : Bytes, block_size : Int, area : Bytes, info : RockRidge, depth : Int) -> Unit raise IsoError

fn scan_volume_descriptors(data : Bytes) -> Array[(Int, Int)] raise IsoError