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#compdef cdrdao

# TODO: Options must come before parameters.

# Command completion and main loop {{{1

_cdrdao_commands () {
  local -a commands

  commands=(
    'show-toc:print out a summary of a TOC'
    'read-toc:create a TOC file based on a CD'
    'read-cd:create a TOC file and image file based on a CD'
    'read-cddb:add CD-TEXT data from a CDDB server to a TOC'
    'show-data:print out samples that would be written to CD'
    'read-test:check if data described in a TOC can be read from a CD'
    'disk-info:show information about a CD'
    'msinfo:generate mkisofs command for creating multi-session CD'
    'unlock:try to unlock a recorder after a failed run'
    'blank:blank a CD-RW'
    'simulate:simulate a write'
    'write:write a CD based on a TOC'
    'copy:copy a CD'
  )

  _describe -t commands 'cdrdao command' commands && ret=0
}

_cdrdao () {
  local curcontext=$curcontext ret=1

  local context state line
  typeset -A opt_args
  _arguments \
    ':command:->command' \
    '*::options:->options' && ret=0
  case $state in
    (command)
      _cdrdao_commands
      ;;
    (options)
      curcontext="${curcontext%:*:*}:cdrdao-$words[1]:"
      _call_function ret _cdrdao-$words[1]
      ;;
  esac

}

# Common arguments {{{1

declare -ga tmpfile_args
tmpfile_args=(
  '--tmpdir[directory to store temporary data in]:directory:_directories'
  '--keep[do not remove temporary data when done]')

declare -ga device_args
device_args=(
  '--device[set SCSI address of the CD recorder]:device:__cdrdao-device'
  '--driver[use given driver for the CD recorder]:driver:__cdrdao-drivers')

# TODO: Gah!  Fix a cddb server spec matcher
declare -ga cddb_args
cddb_args=(
  '--cddb-servers[specify list of CDDB servers to use]:CDDB servers:'
  '--cddb-timeout[specify timeout in seconds for connections to CDDB servers]: :_guard "[[\:digit\:]]" timeout'
  '--cddb-directory[directory where fetched CDDB records will be stored]:directory:_directories')

declare -g paranoiamode_arg=
paranoiamode_arg='--paranoia-mode[set correction mode for digital audio extraction]:mode:(("0\:no checking" "1\:perform overlapped reading to avoid jitter" "2\:like 1 but with checks of read audio data" "3\:like 2 but with scratch detection/repair (default)"))'

declare -g fasttoc_arg=
fasttoc_arg='--fast-toc[skip pre-gap-length and index-mark extraction]'

declare -g swap_arg=
swap_arg='--swap[swap the byte order of samples]'

declare -g reload_arg=
reload_arg='--reload[reload the disk if necessary]'

declare -g eject_arg=
eject_arg='--eject[eject CD after completed operation]'

declare -g speed_arg=
speed_arg='-speed[set writing speed]: :_guard "[[\:digit\:]]##" speed'

declare -ga common_args
common_args=(
  '(*)'{-h,--help}'[display command/option summary]'
  '-v[set verbosity level]: :_guard "[[\:digit\:]]##" verbosity')

declare -ga common_toc_args
common_toc_args=(
  $common_args
  ':TOC file:_files -g "*.toc"')

declare -ga common_device_args
common_device_args=(
  $common_args
  $device_args)

declare -ga common_toc_device_args
common_toc_device_args=(
  $common_toc_args
  $common_device_args
  $force_arg)

declare -ga common_read_args
common_read_args=(
  '--rspeed[set reading speed]: :_guard "[[\:digit\:]]##" speed'
  '--session[specify what session to process on multi-session CDs]: :_guard "[[\:digit\:]]##" "session number"'
  '--read-subchan[set sub-channel reading-mode]:mode:(("rw\:de-interleaved and error corrected" "rw_raw\:not de-interleaved, not error-corrected, and L-EC data included"))'
  '--tao-source[indicate that source CD was written in TAO mode]'
  '--with-cddb[retrieve CD-TEXT data from a CDDB server]')

# Sub-command completion {{{1

_cdrdao-show-toc () {
  __cdrdao-show-toc-or-toc-info-or-toc-size
}

_cdrdao-toc-info () {
  __cdrdao-show-toc-or-toc-info-or-toc-size
}

_cdrdao-toc-size () {
  __cdrdao-show-toc-or-toc-info-or-toc-size
}

__cdrdao-show-toc-or-toc-info-or-toc-size () {
  _arguments \
    $common_toc_args \
    $tmpfile_args && ret=0
}

_cdrdao-read-toc () {
  __cdrdao-read-toc-or-read-cd \
    $fasttoc_arg
}

_cdrdao-read-cd () {
  __cdrdao-read-toc-or-read-cd \
    $paranoiamode_arg
}

__cdrdao-read-toc-or-read-cd () {
  local -a dependent_args

  __cdrdao-read-toc-or-read-cd-or-copy-dependent-args

  _arguments \
    $common_toc_device_args \
    $common_read_args \
    $dependent_args
    '--datafile[set name of data file placed in TOC file]:file:_files' \
    '--read-raw[read data in raw format from CD]' \
    '--no-mode2-mixed[if MODE2_FORM1 or MODE2_FORM2, do not extract as MODE2_FORM_MIX]' \
    $* && ret=0
}

_cdrdao-read-cddb () {
  _arguments \
    $common_toc_args \
    $cddb_args && ret=0
}

_cdrdao-show-data () {
  _arguments \
    $common_toc_args \
    $swap_arg && ret=0
}

_cdrdao-read-test () {
  _arguments \
    $common_toc_args && ret=0
}

_cdrdao-disk-info () {
  __cdrdao-disk-info-or-drive-info
}

__cdrdao-disk-info-or-drive-info () {
  _arguments \
    $common_device_args && ret=0
}

_cdrdao-msinfo () {
  _arguments \
    $common_device_args \
    $reload_arg && ret=0
}

_cdrdao-drive-info () {
  __cdrdao-disk-info-or-drive-info
}

_cdrdao-unlock () {
  _arguments \
    $common_device_args \
    $reload_arg \
    $eject_arg && ret=0
}

_cdrdao-blank () {
  _arguments \
    $common_device_args \
    $speed_arg \
    '--blank-mode[set the blanking mode]:blanking mode:(("full\:completely erase data" "minimal\:only dereference data"))' \
    $eject_arg && ret=0
}

_cdrdao-scanbus () {
  _arguments \
    $common_args && ret=0
}

_cdrdao-simulate () {
  __cdrdao-simulate-or-write
}

__cdrdao-simulate-or-write () {
  local capacity_arg=
  
  if (( $words[(I)--full-burn] )); then
    capacity_arg='--capacity[set disk capacity for --full-burn]: :_guard "[[\:digit\:]]" minutes'
  fi

  _arguments \
    $common_toc_device_args \
    $speed_arg \
    '--multi[do not close the session after successful write]' \
    '--overburn[allow overburing of medium]' \
    '--full-burn[force burning to the outer disk edge]' \
    $capacity_arg \
    $eject_arg \
    $swap_arg \
    '--buffers[set fifo buffer size]: :_guard "[[\:digit\:]]" size' \
    $reload_arg \
    $tmpfile_args \
    '-n[do not pause before writing]' \
    $* && ret=0
}

_cdrdao-write () {
  __cdrdao-simulate-or-write \
    '--simulate[only perform a write simulation]' \
    '--buffer-under-run-protection[whether to use buffer under-run protection]:buffer under-run protection setting:(("0\:disable buffer under-run protection" "1\:enable buffer under-run protection"))' \
    '--write-speed-control[whether to use writing-speed control]:writing-speed control setting:(("0\:disable writing-speed control" "1\:enable writing-speed control"))' \
    $*
}

__cdrdao-read-toc-or-read-cd-or-copy-dependent-args () {
  if (( words[(I)--tao-source] )); then
    dependent_args+='--tao-source-adjust[specify number of link blocks for tracks written in TAO mode]: :_guard "[[\:digit\:]]##" "link blocks"'
  fi

  if (( words[(I)--with-cddb] )); then
    dependent_args+=$cddb_args
  fi
}

_cdrdao-copy () {
  local -ga dependent_args

  __cdrdao-read-toc-or-read-cd-or-copy-dependent-args

  _cdrdao-write \
    $dependent_args
    $common_read_args
    '--source-device[set SCSI address of the CD reader]:device:__cdrdao-device' \
    '--source-driver[use given driver for the CD reader]:driver:__cdrdao-drivers' \
    '--on-the-fly[perform on-the-fly copy of CD (no image created)]' \
    $fasttoc_arg \
    '--keepimage[do not remove generated image when done]' \
    $paranoiamode_arg && ret=0
}

# Type completion {{{1

__cdrdao-device () {
  # Use cdrdao scanbus and also check what OS we’re running under and provide
  # additional stuff, like devices (/dev/sg0)
  local -a devices

  devices=(${(f)"$(_call_program devices cdrdao scanbus -v 0 2>/dev/null)"})
  if (( ${#pipestatus:#0} > 0 )); then
    return 1
  fi

  _wanted devices expl 'device' compadd - $devices
}

__cdrdao-drivers () {
  local -a drivers

  drivers=(${(f)"$(_call_program drivers cut -d'|' -f4 /usr/share/cdrdao/drivers -s 2>/dev/null | sort -u)"})
  if (( ${#pipestatus:#0} > 0 )); then
    return 1
  fi

  _wanted drivers expl 'driver' compadd -qS: - $drivers
}

# }}}1

_cdrdao

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