# # Copyright (c) 2023 Project CHIP 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
# #
# # http://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/build.gni")
import("//build_overrides/chip.gni")
import("//build_overrides/stm32_sdk.gni")

import("${build_root}/config/defaults.gni")
import("${chip_root}/src/platform/device.gni")
import("${stm32_sdk_build_root}/stm32_executable.gni")
import("${stm32_sdk_build_root}/stm32_sdk.gni")

assert(current_os == "freertos")

stm32_project_dir = "${chip_root}/examples/lighting-app/stm32"
examples_plat_dir = "${chip_root}/examples/platform/stm32"
stm32_board_src = "${chip_root}/examples/platform/stm32/common/STM32WB5MM-DK"

declare_args() {
  # Dump memory usage at link time.
  chip_print_memory_usage = false

  # PIN code for PASE session establishment.
  setupPinCode = 20202021
  setupDiscriminator = 3840

  # Monitor & log memory usage at runtime.
  enable_heap_monitoring = false

  # Enable Sleepy end device
  enable_sleepy_device = false

  # OTA timeout in seconds
  OTA_periodic_query_timeout = 86400
}

# Sanity check
assert(!(chip_enable_wifi && chip_enable_openthread))

# ThunderBoards and Explorer Kit
if (stm32_board == "STM32WB5MM-DK") {
  chip_enable_openthread = true
}

stm32_sdk("sdk") {
  if (stm32_board == "STM32WB5MM-DK") {
    sources = [
      "${examples_plat_dir}/config_files/STM32WB5/FreeRTOSConfig.h",
      "${examples_plat_dir}/config_files/STM32WB5/matter_config.h",
      "${stm32_project_dir}/include/STM32WB5/CHIPProjectConfig.h",
    ]
  }

  include_dirs = [
    "${chip_root}/src/platform/stm32",
    "${examples_plat_dir}",
    "${chip_root}/src/lib",
  ]

  if (stm32_board == "STM32WB5MM-DK") {
    include_dirs += [
      "${stm32_project_dir}/include/STM32WB5",
      "${examples_plat_dir}/config_files/STM32WB5",
      "${chip_root}/src/include",
    ]
  }

  defines = [
    "BOARD_ID=${stm32_board}",
    "CHIP_DEVICE_CONFIG_USE_TEST_SETUP_PIN_CODE=${setupPinCode}",
    "CHIP_DEVICE_CONFIG_USE_TEST_SETUP_DISCRIMINATOR=${setupDiscriminator}",
    "OTA_PERIODIC_TIMEOUT=${OTA_periodic_query_timeout}",
    "STM32STORE_MAX_KEY_SIZE=75",
  ]
}

stm32_executable("lighting_app") {
  if (stm32_board == "STM32WB5MM-DK") {
    output_name = "chip-stm32-lighting-example.elf"
    include_dirs = [
      "${chip_root}/examples/platform/stm32/config_files/STM32WB5/",
      "${chip_root}/examples/platform/stm32/common/STM32WB5MM-DK/Inc",
      "${chip_root}/src/include/",
    ]
    defines = []

    sources = [
      "${stm32_board_src}/STM32_WPAN/App/app_ble.c",
      "${stm32_board_src}/STM32_WPAN/App/app_matter.c",
      "${stm32_board_src}/STM32_WPAN/App/app_thread.c",
      "${stm32_board_src}/STM32_WPAN/App/custom_stm.c",
      "${stm32_board_src}/Src/app_entry.cpp",
      "${stm32_board_src}/Src/main.cpp",
      "src/STM32WB5/AppTask.cpp",
      "src/STM32WB5/LightingManager.cpp",
      "src/STM32WB5/ZclCallbacks.cpp",
    ]
  }

  # Add the startup file to the target
  sources += [ "${examples_plat_dir}/startup_files/startup_${stm32_mcu}.s" ]

  deps = [
    ":sdk",
    "${chip_root}/examples/lighting-app/lighting-common",
    "${chip_root}/examples/providers:device_info_provider",
    "${chip_root}/src/lib",
    "${chip_root}/src/setup_payload",
  ]

  defines += [
    "DEBUG",
    "USE_HAL_DRIVER",
  ]

  # OpenThread Settings
  if (chip_enable_openthread) {
    deps += [
      "${chip_root}/third_party/openthread:openthread",
      "${chip_root}/third_party/openthread:openthread-platform",
    ]
  }

  if (chip_enable_ota_requestor) {
    defines += [ "STM32_OTA_ENABLED" ]
    sources += [ "${examples_plat_dir}/OTAConfig.cpp" ]
  }

  ldscript = "${examples_plat_dir}/ldscripts/${stm32_mcu}_FLASH.ld"

  inputs = [ ldscript ]

  ldflags = [
    "-T" + rebase_path(ldscript, root_build_dir),

    # other linker flags ...
    "-static",
    "-Wl,--cref",
    "-Wl,--start-group",
    "-lc",
    "-lm",
    "-lstdc++",
    "-lsupc++",
    "-Wl,--no-warn-rwx-segments",
    "-Wl,--end-group",
  ]
  if (chip_print_memory_usage) {
    ldflags += [
      "-Wl,--print-memory-usage",
      "-fstack-usage",
    ]
  }

  output_dir = root_out_dir
}
group("stm32") {
  deps = [ ":lighting_app" ]
}

group("default") {
  deps = [ ":stm32" ]
}