#compdef vagrant
#autoload

local -a _1st_arguments
_1st_arguments=(
  'box:Box commands'
  'destroy:Destroys the vagrant environment'
  'halt:Halts the currently running vagrant environment'
  'help:[TASK] Describe available tasks or one specific task'
  'init:[box_name] [box_url] Initializes current folder for Vagrant usage'
  'package:Packages a vagrant environment for distribution'
  'provision:Run the provisioner'
  'reload:Reload the vagrant environment'
  'resume:Resumes a suspend vagrant environment'
  'ssh:SSH into the currently running environment'
  'ssh_config:outputs .ssh/config valid syntax for connecting to this environment via ssh.'
  'status:Shows the status of the current Vagrant environment.'
  'suspend:Suspends the currently running vagrant environment'
  'up:Creates the vagrant environment'
  'version:Prints the Vagrant version information'
)

local -a _box_arguments
_box_arguments=(
  'add:NAME URI Add a box to the system'
  'help:COMMAND Describe subcommands or one specific subcommand'
  'list:Lists all installed boxes'
  'remove:NAME Remove a box from the system'
  'repackage:NAME Repackage an installed box into a `.box` file.'
)

function __task_list() {
  local expl
  declare -a tasks

  tasks=(box destroy halt init package provision reload resume ssh ssh_config status suspend up version)
  _wanted tasks expl 'help' compadd $tasks
}

function __box_list() {
  _wanted application expl 'command' compadd $(command ls -1 $HOME/.vagrant/boxes 2>/dev/null| sed -e 's/ /\\ /g')
}

function __vagrant-box() {
  local curcontext="$curcontext" state line
  typeset -A opt_args

  _arguments -C \
    ':command:->command' \
    '*::options:->options'

 case $state in
   (command)
     _describe -t commands "gem subcommand" _box_arguments
     return
   ;;
   (options)
     case $line[1] in
       (repackage|remove)
         _arguments ':feature:__box_list'
       ;;
     esac
   ;;
  esac
}

local expl
local -a boxes installed_boxes
local curcontext="$curcontext" state line
typeset -A opt_args

_arguments -C \
    ':command:->command' \
    '*::options:->options'

case $state in
  (command)
    _describe -t commands "gem subcommand" _1st_arguments
    return
  ;;

  (options)
    case $line[1] in
      (help)
        _arguments ':feature:__task_list'
      ;;

      (box)
        __vagrant-box
      ;;
    esac
  ;;
esac