# Copyright 2019 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/rust/rustc_library.gni")
import("//build/test/test_package.gni")
import("//src/graphics/lib/compute/gn/build_settings.gni")

# Raw Spinel Rust bindings that offer little more than just access to Spinel's
# C types.
rustc_library("spinel-rs-sys") {
  name = "spinel-rs-sys"
  with_unit_tests = true
  version = "0.1.0"
  edition = "2018"
  deps = [
    "//third_party/rust_crates:anyhow",
    "//third_party/rust_crates:thiserror",
    "//third_party/rust_crates:vk-sys",
  ]
  non_rust_deps = [
    # We want to depend on the Spinel headers to trigger the hash check.
    "//src/graphics/lib/compute/spinel:spinel_headers",
  ]
  sources = [ "src/lib.rs" ]
}

group("tests") {
  testonly = true
  deps = [
    ":spinel-rs-sys-tests",
    ":spinel_c_api_header_hashes",
  ]
}

# Check whether Spinel header files have changed. If so, the
# spinel.c-api files needs to be updated:
#
#   $ ../scripts/hash_dir.py \
#   --header_paths ../spinel/include/spinel/* \
#   --header_dir ../spinel/include \
#   > spinel.c-api
#
# This change will then need to be approved by one of the OWNERS in
# of this library.
action("spinel_c_api_header_hashes") {
  script = "${graphics_compute_dir}/scripts/hash_dir.py"

  header_path = "${graphics_compute_dir}/spinel/include"
  sources = [ "spinel.c-api" ]
  inputs = [
    "${header_path}/spinel/spinel.h",
    "${header_path}/spinel/spinel_assert.h",
    "${header_path}/spinel/spinel_opcodes.h",
    "${header_path}/spinel/spinel_result.h",
    "${header_path}/spinel/spinel_types.h",
    "${header_path}/spinel/spinel_vk.h",
    "${header_path}/spinel/spinel_vk_types.h",
  ]

  stamp = "$target_gen_dir/$target_name.stamp"
  outputs = [ stamp ]
  args = [ "--header_paths" ] + rebase_path(inputs, root_build_dir) + [
           "--header_dir",
           rebase_path(header_path, root_build_dir),
           "--compare",
           rebase_path("spinel.c-api", root_build_dir),
           "--stamp",
           rebase_path(stamp, root_build_dir),
         ]
}

unittest_package("spinel-rs-sys-tests") {
  deps = [ ":spinel-rs-sys_test" ]
  tests = [
    {
      name = "spinel_rs_sys_lib_test"
    },
  ]
}