#compdef gas
  
  local curcontext="$curcontext" state line cmds ret=1
  
  _arguments -C \
  	'(- 1 *)'{-v,--version}'[display version information]' \
  	'(-h|--help)'{-h,--help}'[show help information]' \
  	'1: :->cmds' \
  	'*: :->args' && ret=0
  
  case $state in
  	cmds)
  		cmds=(
              "version:Prints Gas's version"
              "use:Uses author"
              "ssh:Creates a new ssh key for an existing gas author"
              "show:Shows your current user"
              "list:Lists your authors"
              "import:Imports current user to gasconfig"
              "help:Describe available tasks or one specific task"
              "delete:Deletes author"
              "add:Adds author to gasconfig"
          )
  		_describe -t commands 'gas command' cmds && ret=0
  		;;
  	args)
  		case $line[1] in
  			(use|delete)
          VERSION=$(gas -v)
          if [[ $VERSION == <1->.*.* ]] || [[ $VERSION == 0.<2->.* ]] || [[ $VERSION == 0.1.<6-> ]] then
            _values -S , 'authors' $(cat ~/.gas/gas.authors | sed -n -e 's/^.*\[\(.*\)\]/\1/p') && ret=0
          else
  				  _values -S , 'authors' $(cat ~/.gas | sed -n -e 's/^\[\(.*\)\]/\1/p') && ret=0
          fi
  		esac
  		;;
  esac
  
  return ret