# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//tools/grit/repack.gni")

# Pack all resources for an application extension for a given locale.
#
# Arguments:
#
#   extension [required]
#       name of the application extension.
#
#   input_locale [required]
#       name of the locale to pack.
#
#   output_locale [required]
#       name of the locale (may be different from input_locale as iOS
#       and Chrome does not use the same convention for naming locales
#       with country variants).
#
#   visibility [optional]
#       usual meaning.
#
template("_extension_repack_one_locale") {
  assert(defined(invoker.extension), "Need extension for $target_name")
  assert(defined(invoker.input_locale), "Need input_locale for $target_name")
  assert(defined(invoker.output_locale), "Need output_locale for $target_name")

  repack_and_bundle(target_name) {
    forward_variables_from(invoker, [ "visibility" ])

    deps = [
      "//ios/chrome/${invoker.extension}/strings",
    ]

    sources = [
      "$root_gen_dir/ios/${invoker.extension}/" +
          "ios_${invoker.extension}_strings_${invoker.input_locale}.pak",
    ]

    output = "$target_gen_dir/${invoker.output_locale}.lproj/locale.pak"
    bundle_output = "{{bundle_resources_dir}}/" +
                    "${invoker.output_locale}.lproj/locale.pak"
  }
}

# Pack all resoruces for an application extension for all locales.
#
# Arguments:
#
#   extension [required]
#       name of the application extension.
#
#   input_locales [required]
#       list of all locales to pack.
#
#   output_locales [required]
#       list of all locales in application bundle (may differ from input
#       locales as iOS and Chrome does not use the same convention for
#       naming locales with country variants).
#
#       Must be the same length as input_locales.
#
#   visibility [optional]
#       usual meaning.
#
template("extension_repack_all_locales") {
  assert(defined(invoker.extension), "Need extension for $target_name")
  assert(defined(invoker.input_locales), "Need input_locales for $target_name")
  assert(defined(invoker.output_locales),
         "Need output_locales for $target_name")

  _target_name = target_name

  # TODO(614747): GN parser does not grok invoker.output_locales[foo]. Use a
  # local variables to workaround this issue until the issue is fixed.
  _current_locale = 0
  _output_locales = invoker.output_locales

  # Collect all locale targets to avoid looping twice over the locales.
  _locale_targets = []

  foreach(_input_locale, invoker.input_locales) {
    _output_locale = _output_locales[_current_locale]

    _locale_target = _target_name + "_$_input_locale"
    _extension_repack_one_locale(_locale_target) {
      visibility = [ ":$_target_name" ]
      input_locale = _input_locale
      output_locale = _output_locale
      extension = invoker.extension
    }

    _locale_targets += [ ":$_locale_target" ]
    _current_locale = _current_locale + 1
  }

  group(_target_name) {
    forward_variables_from(invoker, [ "visibility" ])
    public_deps = _locale_targets
  }
}