# -*- mode: sh; sh-shell-file: bash -*-

_wsl() {
  local tasks='--help          (Display usage information)
--debug-shell         (Open a WSL2 debug shell for diagnostics purposes)
--event-viewer        (Opens the application view of the Windows Event Viewer)
--unregister      (deletes the root filesystem)
--terminate     (Terminates the specified distribution)
--set-default   (Sets the distribution as the default)
--shutdown      (Immediately terminates all running distributions)
--release-notes (Opens a web browser to view the WSL release notes page)
--manage        (Changes distro specific options)
--install       (Install a Windows Subsystem for Linux distribution)
--set-default-version (Changes the default install version for new distributions)
--status        (Show the status of Windows Subsystem for Linux)
--update        (Update the Windows Subsystem for Linux package)
--version       (Display version information)
--list          (Lists distributions)
--export        (Exports the distribution to a tar file)
--import        (Imports the specified tar file as a new distribution)
--import-in-place (Imports the specified .vhdx file as a new distribution)'

  local cur prev
  cur=${COMP_WORDS[COMP_CWORD]}
  [[ $COMP_CWORD -gt 1 ]] && prev=${COMP_WORDS[COMP_CWORD-1]}

  if [[ $COMP_CWORD = 1 ]]; then
    local OIFS="$IFS"
    local IFS=$'\n'
    COMPREPLY=( $(compgen -W '$tasks' -- "$cur") )
    if [[ ${#COMPREPLY[@]} -le 1 ]]; then
      COMPREPLY=( ${COMPREPLY[0]%% *} )
    fi
    IFS=$OIFS
    return
  fi
  return 0
} &&
complete -F _wsl wsl