# Copyright 2020 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/rust/rustc_test.gni")

assert(is_host)

if (is_mac) {
  static_library("usb_rs_stubs") {
    sources = [
      "iokit_usb_stub.c",
      "iokit_usb_stub.h",
    ]
  }
}

rustc_library("usb_rs") {
  edition = "2021"
  with_unit_tests = true

  deps = [
    "//third_party/rust_crates:futures",
    "//third_party/rust_crates:libc",
    "//third_party/rust_crates:notify",
    "//third_party/rust_crates:thiserror",
  ]

  sources = [
    "src/lib.rs",
    "src/usb_linux/discovery.rs",
    "src/usb_linux/mod.rs",
    "src/usb_linux/usbdevice_fs.rs",
  ]

  if (is_mac) {
    deps += [ ":usb_rs_stubs" ]
    sources += [
      "src/usb_osx/iokit_usb.rs",
      "src/usb_osx/iokit_wrappers.rs",
      "src/usb_osx/mod.rs",
    ]
  } else {
    sources += [
      "src/usb_linux/discovery.rs",
      "src/usb_linux/mod.rs",
      "src/usb_linux/usbdevice_fs.rs",
    ]

    test_deps = [
      "//src/lib/fuchsia",
      "//third_party/rust_crates:tempfile",
    ]

    deps += [
      "//third_party/rust_crates:nix",
      "//third_party/rust_crates:zerocopy",
    ]
  }
}

group("tests") {
  public_deps = [ ":usb_rs_test($host_toolchain)" ]
  testonly = true
}