# _fx_oldset__board completes a board name
_fx_oldset__board() {
  compadd ${(u)$(echo ${fuchsia_dir}/boards/*.gni(N:t:r) ${fuchsia_dir}/vendor/*/boards/*.gni(N:t:r))}
}

# _fx_oldset__product completes a product name
_fx_oldset__product() {
  compadd ${(u)$(echo ${fuchsia_dir}/products/*.gni(N:t:r) ${fuchsia_dir}/vendor/*/products/*.gni(N:t:r))}
}

# _fx_oldset__package completes a package name
_fx_oldset__package() {
  compadd $(cd ${fuchsia_dir} >/dev/null 2>&1 && echo */packages/**/^*.*(.N) vendor/*/packages/**/^*.*(.N))
}

# _packages completes a comma separated list of packages
_packages() {
  # packages are files without extensions in */packages/ and vendor/*/packages/
  _values -s , $(cd ${fuchsia_dir} >/dev/null 2>&1 && echo */packages/**/^*.*(.N) vendor/*/packages/**/^*.*(.N))
}

# _products completes a comma separated list of products
_products() {
  # products are .gni files in */products/ and vendor/*/products/
  _values -s , $(cd ${fuchsia_dir} >/dev/null 2>&1 && echo */products/**/*.gni(.N) vendor/*/products/**/*.gni(.N))
}

_gn_args_caching_policy() {
  test ${ninja_file} -nt $1
}

_gn_args() {
  if [ -z ${fuchsia_build_dir} ]; then
    return
  fi

  # apply a default caching policy if one isn't configured
  local cache_policy
  zstyle -s ":completion:${curcontext}:" cache-policy cache_policy
  zstyle ":completion:${curcontext}:" cache-policy \
      ${cache_policy:-_gn_args_caching_policy}

  # if this file is newer than the cache file then the cache is stale
  local ninja_file=${fuchsia_dir}/${fuchsia_build_dir}/build.ninja

  local -a gn_args
  if ! _retrieve_cache gn_args ; then
    gn_args=( $(${fuchsia_dir}/buildtools/gn args ${fuchsia_dir}/${fuchsia_build_dir} --list --short|sed -e 's/ .*//') )
    _store_cache gn_args gn_args
  fi

  # complete the list of gn args with an = suffix
  compadd -S = ${gn_args}
}

# list of supported fuchsia architectures
local -a archs
archs=(
  'x64:64 bit Intel'
  'arm64:64 bit ARM'
)

# TODO: --help-args --zircon-arg

# arguments to fx oldset
_arguments '1:arch:{_describe "arch" archs}' \
  '2::build_dir:{__fx_build_dir}' \
  '(:)--board[Use the listed board configuration]:board:_fx_oldset__board' \
  '(:)--product[Include the listed product in the build]:product:_fx_oldset__product' \
  '(:)*--available[Package to be available for pushing]:package:_fx_oldset__package' \
  '(:)*--preinstall[Package to be included in the system image]:package:_fx_oldset__package' \
  '(:)*--monolith[Package to be included in the monolithic system image]:package:_fx_oldset__package' \
  '(:)*--variant[Pass a select_variant GN arg]: ' \
  '(:)*--fuzz-with[A sanitizer name to fuzz with]: ' \
  '(:)--args[Arguments for GN gen]:args:{_gn_args}' \
  '(:)--goma[Use GOMA]' \
  "(:)--no-goma[Don't use GOMA]" \
  "(:)--no-ensure-goma[Don't make sure GOMA is running]" \
  '(:)--goma-dir[GOMA directory to use]:directory:_files -/' \
  "(:)--ccache[Use ccache]" \
  "(:)--no-ccache[Don't use ccache]" \
  '(:)--ide[Generate files for an IDE]:ide:(eclipse vs vs2013 vs2015 vs2017 xcode qcreator json)' \
  '(:)--release[Release build]'