# Copyright 2020 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("$dir_pw_build/facade.gni")
import("$dir_pw_build/target_types.gni")
import("$dir_pw_docgen/docs.gni")
import("backend.gni")

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

config("backend_config") {
  include_dirs = [ "public_overrides" ]
  visibility = [ ":*" ]
}

pw_facade("handler") {
  backend = pw_assert_basic_HANDLER_BACKEND
  public_configs = [ ":public_include_path" ]
  public_deps = [ "$dir_pw_preprocessor" ]
  public = [ "public/pw_assert_basic/handler.h" ]
}

# TODO(pwbug/246): This backend implements pw_assert's check backend and the
# temporary compatibility C ABI (pw_assert_HandleFailure()).
#
# pw_assert_basic only provides the backend's interface. The implementation is
# pulled in through pw_build_LINK_DEPS.
pw_source_set("pw_assert_basic") {
  public_configs = [
    ":backend_config",
    ":public_include_path",
  ]
  public = [
    "public/pw_assert_basic/assert_basic.h",
    "public/pw_assert_basic/handler.h",
    "public_overrides/pw_assert_backend/check_backend.h",
  ]
}

# The assert backend deps that might cause circular dependencies, since
# pw_assert is so ubiquitous. These deps are kept separate so they can be
# depended on from elsewhere.
pw_source_set("pw_assert_basic.impl") {
  public_deps = [
    dir_pw_result,
    dir_pw_string,
    dir_pw_sys_io,
  ]
  deps = [
    ":pw_assert_basic",
    "$dir_pw_assert:config",
    "$dir_pw_assert:facade",
    "$dir_pw_preprocessor",
    pw_assert_basic_HANDLER_BACKEND,
  ]
  sources = [ "assert_basic.cc" ]
}

# A basic handler backend using pw_sys_io.
pw_source_set("basic_handler") {
  # Turn off GN check since this target intentionally leaves out deps to avoid
  # circular dependencies.
  check_includes = false

  # Depend on the include path instead of the library to avoid circular deps.
  configs = [
    "$dir_pw_string:public_include_path",
    "$dir_pw_result:public_include_path",
  ]
  deps = [
    ":handler.facade",
    "$dir_pw_assert:config",
    "$dir_pw_assert:facade",
    "$dir_pw_preprocessor",
    "$dir_pw_sys_io:facade",  # Only pull in the facade to avoid circular deps
    dir_pw_status,
  ]
  sources = [ "basic_handler.cc" ]
}

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