# Copyright 2015 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("//build/config/android/config.gni")
import("//build/config/features.gni")
import("//build/config/ui.gni")
import("//media/media_options.gni")
import("//mojo/public/tools/bindings/mojom.gni")
import("//testing/test.gni")

if (is_android) {
  # For generate_jni().
  import("//build/config/android/rules.gni")
}

# Common configuration for targets in the media/midi directory.
config("midi_config") {
  if (use_alsa && use_udev) {
    defines = [
      "USE_ALSA",
      "USE_UDEV",
    ]
  }

  visibility = [ ":*" ]
}

# USB MIDI specific source files that are used in Android port, and unit tests.
# These can't easily be a source set because "midi" is a component and the
# component export flags must always be the same.
usb_midi_sources = [
  "midi_manager_usb.cc",
  "midi_manager_usb.h",
  "usb_midi_descriptor_parser.cc",
  "usb_midi_descriptor_parser.h",
  "usb_midi_device.h",
  "usb_midi_export.h",
  "usb_midi_input_stream.cc",
  "usb_midi_input_stream.h",
  "usb_midi_jack.h",
  "usb_midi_output_stream.cc",
  "usb_midi_output_stream.h",
]

# Android specific Java source files that are used to generate jni header files.
if (is_android) {
  android_library("midi_java") {
    deps = [
      "//base:base_java",
    ]

    java_files = [
      "java/src/org/chromium/midi/MidiDeviceAndroid.java",
      "java/src/org/chromium/midi/MidiInputPortAndroid.java",
      "java/src/org/chromium/midi/MidiManagerAndroid.java",
      "java/src/org/chromium/midi/MidiOutputPortAndroid.java",
      "java/src/org/chromium/midi/UsbMidiDeviceAndroid.java",
      "java/src/org/chromium/midi/UsbMidiDeviceFactoryAndroid.java",
    ]
  }

  generate_jni("midi_jni_headers") {
    sources = [
      "java/src/org/chromium/midi/MidiDeviceAndroid.java",
      "java/src/org/chromium/midi/MidiInputPortAndroid.java",
      "java/src/org/chromium/midi/MidiManagerAndroid.java",
      "java/src/org/chromium/midi/MidiOutputPortAndroid.java",
      "java/src/org/chromium/midi/UsbMidiDeviceAndroid.java",
      "java/src/org/chromium/midi/UsbMidiDeviceFactoryAndroid.java",
    ]
    jni_package = "midi"
  }
}

component("midi") {
  sources = [
    "message_util.cc",
    "message_util.h",
    "midi_export.h",
    "midi_manager.cc",
    "midi_manager.h",
    "midi_manager_mac.cc",
    "midi_manager_mac.h",
    "midi_message_queue.cc",
    "midi_message_queue.h",
    "midi_port_info.cc",
    "midi_port_info.h",
    "midi_scheduler.cc",
    "midi_scheduler.h",
    "midi_service.cc",
    "midi_service.h",
    "midi_switches.cc",
    "midi_switches.h",
  ]

  configs += [ ":midi_config" ]

  defines = [ "MIDI_IMPLEMENTATION" ]
  deps = [
    ":mojo",
    "//base",
  ]
  libs = []

  if (is_android) {
    # TODO(yhirano): Consider having "android" subdirectory.
    sources += [
                 "midi_device_android.cc",
                 "midi_device_android.h",
                 "midi_jni_registrar.cc",
                 "midi_jni_registrar.h",
                 "midi_input_port_android.cc",
                 "midi_input_port_android.h",
                 "midi_manager_android.cc",
                 "midi_manager_android.h",
                 "midi_output_port_android.cc",
                 "midi_output_port_android.h",
                 "usb_midi_device_android.cc",
                 "usb_midi_device_android.h",
                 "usb_midi_device_factory_android.cc",
                 "usb_midi_device_factory_android.h",
               ] + usb_midi_sources

    # Since the USB sources are part of the component.
    defines += [ "EXPORT_USB_MIDI" ]

    deps += [
      ":midi_jni_headers",
      "//base:i18n",
    ]
  }

  if (is_mac) {
    libs += [
      "CoreAudio.framework",
      "CoreFoundation.framework",
      "CoreMIDI.framework",
    ]
  }

  if (is_win) {
    deps += [ "//device/usb" ]
    sources += [
      "midi_manager_win.cc",
      "midi_manager_win.h",
      "midi_manager_winrt.cc",
      "midi_manager_winrt.h",
    ]

    # This library is included in base in static builds.
    if (is_component_build) {
      libs += [ "cfgmgr32.lib" ]
    }
  }

  if (use_alsa && use_udev) {
    deps += [
      "//crypto",
      "//crypto:platform",
    ]
    libs += [ "asound" ]
    sources += [
      "midi_manager_alsa.cc",
      "midi_manager_alsa.h",
    ]
  }

  if (use_udev) {
    deps += [ "//device/udev_linux" ]
  }
}

mojom("mojo") {
  sources = [
    "midi_service.mojom",
  ]
}

test("midi_unittests") {
  sources = [
    "message_util_unittest.cc",
    "midi_manager_unittest.cc",
    "midi_manager_usb_unittest.cc",
    "midi_message_queue_unittest.cc",
    "usb_midi_descriptor_parser_unittest.cc",
    "usb_midi_input_stream_unittest.cc",
    "usb_midi_output_stream_unittest.cc",
  ]

  configs += [ ":midi_config" ]
  deps = [
    ":midi",
    "//base/test/:run_all_unittests",
    "//base/test/:test_support",
    "//testing/gtest",
  ]

  if (is_android) {
    deps += [ ":midi_java" ]
  } else {
    sources += usb_midi_sources
  }

  if (is_mac) {
    sources += [ "midi_manager_mac_unittest.cc" ]
    libs = [ "CoreMIDI.framework" ]
  }

  if (use_alsa && use_udev) {
    sources += [ "midi_manager_alsa_unittest.cc" ]
  }

  # This target should not require the Chrome executable to run.
  assert_no_deps = [ "//chrome" ]
}