#compdef packer

__json_template() {
  declare -a template
  template=($(ls | grep '.json'))
  _describe 'images' template
}

local -a _packer_cmds
_packer_cmds=(
  'build:Build commands.'
  'fix:Repair templates from old versions of packer.'
  'inspect:View template in human readable form.'
  'push:Push to a remote packer host to build template.'
  'validate:Check that a template is valid.'
  'version:Display packer version.'
)

__build() {
  _arguments \
    '-debug[Enable Debug mode.]' \
    '-force[Force a build delete existing artifacts.]' \
    '-machine-readable[Enable machine-readable output.]' \
    '-except=[Do not build specifed builds.]' \
    '-only=[Build only specified builds.]' \
    '-parallel=[Disable parallelization (default: true).]' \
    '-var[Set variable in template.]' \
    '-var-file=[Set JSON file containing user variables.]'
  __json_template
}

__fix() {
  __json_template
}

__inspect() {
  _arguments \
    '-machine-readable[Enable machine-readable output.]'
  __json_template
}

__push() {
  _arguments \
    '-create[Create the build configuration if it does not exist.]' \
    '-token=[Access token to use to upload. If blank, the ATLAS_TOKEN environmental variable will be used.]'
}

__validate() {
  _arguments \
    '-syntax-only[Check syntax only.]' \
    '-except=[Do not validate specifed builds.]' \
    '-only=[Validate only specified builds.]' \
    '-var[Set variable in template.]' \
    '-var-file=[Set JSON file containing user variables.]'
  __json_template
}

__version() {
  true  
}

_arguments '*:: :->command'

if (( CURRENT == 1 )); then
  _describe -t commands "packer command" _packer_cmds
  return
fi

local -a _command_args
case "$words[1]" in
  build)
    __build ;;
  fix)
    __fix ;;
  inspect)
    __inspect ;;
  push)
    __push ;;
  validate)
    __validate ;;
  version)
    __version ;;
esac