# Copyright 2024 The Fuchsia 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("//build/components/fuchsia_package_archive.gni")

# A variant of fuchsia_package_archive also exposes itself in the
# `exported_package_archives` build api module.
#
# Parameters
#
#   package (required)
#     A fuchsia_package() target defined earlier in the same file.
#     Type: label
#
#   api_level (optional)
#     The minimum required API level for the components in this package.
#     Defaults to -1, denoting an unspecified API level.
#     Type: int
#
#   testonly
#   visibility
template("exported_fuchsia_package_archive") {
  if (current_toolchain == default_toolchain) {
    assert(defined(invoker.package), "package is required")
    _package_label = invoker.package

    _api_level = -1
    if (defined(invoker.api_level)) {
      api_level = invoker.api_level
    }

    _archive_label = ":${target_name}_archive"
    fuchsia_package_archive("${target_name}_archive") {
      forward_variables_from(invoker, "*")
    }

    # LINT.IfChange
    _input_far = get_label_info(_archive_label, "target_out_dir") + "/" +
                 get_label_info(_package_label, "name") + ".far"

    # LINT.ThenChange(//src/sys/pkg/bin/package-tool/package-tool.gni)

    # LINT.IfChange
    _input_package_manifest =
        get_label_info(_package_label, "target_out_dir") + "/" +
        get_label_info(_package_label, "name") + "/package_manifest.json"

    # LINT.ThenChange(//build/components/fuchsia_package.gni)

    _output_metadata = "$target_out_dir/${target_name}_metadata.json"
    action(target_name) {
      forward_variables_from(invoker, "*", [ "package" ])

      metadata = {
        exported_package_archives =
            [ rebase_path(_output_metadata, root_build_dir) ]
      }

      script = "//build/packages/generate_package_archive_metadata.py"

      inputs = [
        _input_far,
        _input_package_manifest,
      ]

      outputs = [ _output_metadata ]

      args = [
        "--far",
        rebase_path(_input_far, root_build_dir),
        "--package-manifest",
        rebase_path(_input_package_manifest, root_build_dir),
        "--cpu",
        target_cpu,
        "--api-level",
        "$_api_level",
        "--out",
        rebase_path(_output_metadata, root_build_dir),
      ]

      deps = [
        _archive_label,
        _package_label,
      ]
    }
  } else {
    group(target_name) {
      public_deps = [ ":${target_name}($default_toolchain)" ]
    }
  }
}