# Copyright 2023 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

import("//build_overrides/pigweed.gni")

import("$dir_pw_async2/backend.gni")
import("$dir_pw_build/target_types.gni")
import("$dir_pw_docgen/docs.gni")
import("$dir_pw_unit_test/test.gni")

config("public_include_path") {
  include_dirs = [ "public" ]
  visibility = [ ":*" ]
}

pw_source_set("pw_channel") {
  public_configs = [ ":public_include_path" ]
  public = [ "public/pw_channel/channel.h" ]
  public_deps = [
    "$dir_pw_async2:dispatcher",
    "$dir_pw_async2:poll",
    "$dir_pw_multibuf:allocator",
    "$dir_pw_toolchain:sibling_cast",
    dir_pw_assert,
    dir_pw_bytes,
    dir_pw_multibuf,
    dir_pw_result,
    dir_pw_span,
    dir_pw_status,
  ]
  sources = [ "public/pw_channel/internal/channel_specializations.h" ]
}

pw_source_set("forwarding_channel") {
  public_configs = [ ":public_include_path" ]
  public = [ "public/pw_channel/forwarding_channel.h" ]
  sources = [ "forwarding_channel.cc" ]
  public_deps = [
    ":pw_channel",
    "$dir_pw_multibuf:allocator",
    "$dir_pw_sync:mutex",
  ]
}

pw_test("forwarding_channel_test") {
  sources = [ "forwarding_channel_test.cc" ]
  deps = [
    ":forwarding_channel",
    "$dir_pw_allocator:testing",
    "$dir_pw_multibuf:header_chunk_region_tracker",
    "$dir_pw_multibuf:simple_allocator",
    dir_pw_preprocessor,
  ]
  enable_if = pw_async2_DISPATCHER_BACKEND != ""
}

pw_source_set("loopback_channel") {
  public_configs = [ ":public_include_path" ]
  public = [ "public/pw_channel/loopback_channel.h" ]
  sources = [ "loopback_channel.cc" ]
  public_deps = [
    ":pw_channel",
    "$dir_pw_multibuf:allocator",
  ]
}

pw_test("loopback_channel_test") {
  sources = [ "loopback_channel_test.cc" ]
  deps = [
    ":loopback_channel",
    "$dir_pw_multibuf:testing",
  ]
  enable_if = pw_async2_DISPATCHER_BACKEND != ""
}

pw_source_set("epoll_channel") {
  public_configs = [ ":public_include_path" ]
  public = [ "public/pw_channel/epoll_channel.h" ]
  sources = [ "epoll_channel.cc" ]
  public_deps = [
    ":pw_channel",
    "$dir_pw_multibuf:allocator",
    "$dir_pw_sync:mutex",
  ]
  deps = [ dir_pw_log ]
}

pw_test("epoll_channel_test") {
  sources = [ "epoll_channel_test.cc" ]
  deps = [
    ":epoll_channel",
    "$dir_pw_multibuf:testing",
    "$dir_pw_thread:sleep",
    "$dir_pw_thread:thread",
  ]
  enable_if =
      pw_async2_DISPATCHER_BACKEND == "$dir_pw_async2_epoll:dispatcher_backend"
}

pw_doc_group("docs") {
  sources = [ "docs.rst" ]
}

pw_test_group("tests") {
  tests = [
    ":channel_test",
    ":epoll_channel_test",
    ":forwarding_channel_test",
    ":loopback_channel_test",
  ]
}

pw_test("channel_test") {
  sources = [ "channel_test.cc" ]
  deps = [
    ":pw_channel",
    "$dir_pw_allocator:testing",
    "$dir_pw_multibuf:simple_allocator",
  ]
  enable_if = pw_async2_DISPATCHER_BACKEND != ""
  negative_compilation_tests = true
}