# Copyright (c) 2020 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/efr32_sdk.gni")
import("//build_overrides/pigweed.gni")

import("${build_root}/config/defaults.gni")
import("${chip_root}/src/platform/device.gni")
import("${efr32_sdk_build_root}/efr32_executable.gni")
import("${efr32_sdk_build_root}/efr32_sdk.gni")

assert(current_os == "freertos")

project_dir = "${chip_root}/examples/window-app"
efr32_project_dir = "${project_dir}/efr32"
examples_plat_dir = "${chip_root}/examples/platform/efr32"

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

  # PIN code for PASE session establishment.
  setupPinCode = 20202021

  # 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

  # Wifi related stuff - they are overridden by gn -args="use_wf200=true"
  use_wf200 = false
  use_rs911x = false
  use_rs911x_sockets = false
  sl_wfx_config_softap = false
  sl_wfx_config_scan = true

  # Disable LCD on supported devices
  disable_lcd = false

  # Argument to Disable IPv4 for wifi(rs911)
  chip_enable_wifi_ipv4 = false

  # Argument to force enable WPA3 security
  rs91x_wpa3_only = false
}

declare_args() {
  # Enables LCD Qr Code on supported devices
  show_qr_code = !disable_lcd
}

# qr code cannot be true if lcd is disabled
assert(!(disable_lcd && show_qr_code))

# Sanity check
assert(!(chip_enable_wifi && chip_enable_openthread))
assert(!(use_rs911x && chip_enable_openthread))
assert(!(use_wf200 && chip_enable_openthread))
if (chip_enable_wifi) {
  assert(use_rs911x || use_wf200)
}

# ThunderBoards  (No LCD)
if (efr32_board == "BRD4166A" || efr32_board == "BRD2601B") {
  show_qr_code = false
  disable_lcd = true
}

# WiFi settings
if (chip_enable_wifi) {
  wifi_sdk_dir = "${chip_root}/third_party/silabs/matter_support/matter/wifi"
  efr32_lwip_defs = [ "LWIP_NETIF_API=1" ]
  efr32_lwip_defs += [
    "LWIP_IPV4=1",
    "LWIP_ARP=1",
    "LWIP_ICMP=1",
    "LWIP_DHCP=1",
    "LWIP_IPV6_ND=1",
    "LWIP_IGMP=1",
  ]

  if (use_rs911x) {
    wiseconnect_sdk_root =
        "${chip_root}/third_party/silabs/wiseconnect-wifi-bt-sdk"
    import("${wifi_sdk_dir}/rs911x/rs911x.gni")
  } else {
    import("${wifi_sdk_dir}/wf200/wf200.gni")
  }
}

efr32_sdk("sdk") {
  sources = [
    "${efr32_project_dir}/include/CHIPProjectConfig.h",
    "${examples_plat_dir}/FreeRTOSConfig.h",
  ]

  include_dirs = [
    "${chip_root}/src/platform/EFR32",
    "${efr32_project_dir}/include",
    "${examples_plat_dir}",
    "${chip_root}/src/lib",
  ]

  defines = [
    "BOARD_ID=${efr32_board}",
    "CHIP_DEVICE_CONFIG_USE_TEST_SETUP_PIN_CODE=${setupPinCode}",
    "OTA_PERIODIC_TIMEOUT=${OTA_periodic_query_timeout}",
  ]

  # WiFi Settings
  if (chip_enable_wifi) {
    if (use_rs911x) {
      defines += rs911x_defs
      include_dirs += rs911x_plat_incs
    } else if (use_wf200) {
      defines += wf200_defs
      include_dirs += wf200_plat_incs
    }

    if (use_rs911x_sockets) {
      include_dirs += [ "${examples_plat_dir}/wifi/rsi-sockets" ]
      defines += rs911x_sock_defs
    } else {
      # Using LWIP instead of the native TCP/IP stack
      defines += efr32_lwip_defs
    }

    if (sl_wfx_config_softap) {
      defines += [ "SL_WFX_CONFIG_SOFTAP" ]
    }
    if (sl_wfx_config_scan) {
      defines += [ "SL_WFX_CONFIG_SCAN" ]
    }
  }
}

efr32_executable("window_app") {
  output_name = "chip-efr32-window-example.out"
  output_dir = root_out_dir
  include_dirs = [
    "include",
    "${project_dir}/common/include",
  ]
  defines = []

  sources = [
    "${examples_plat_dir}/LEDWidget.cpp",
    "${examples_plat_dir}/efr32_utils.cpp",
    "${examples_plat_dir}/heap_4_silabs.c",
    "${examples_plat_dir}/init_efrPlatform.cpp",
    "${examples_plat_dir}/matter_config.cpp",
    "${project_dir}/common/src/WindowApp.cpp",
    "${project_dir}/common/src/ZclCallbacks.cpp",
    "src/WindowAppImpl.cpp",
    "src/main.cpp",
  ]

  if (chip_build_libshell || enable_openthread_cli || enable_openthread_cli) {
    sources += [ "${examples_plat_dir}/uart.cpp" ]
  }

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

  # OpenThread Settings
  if (chip_enable_openthread) {
    deps += [
      "${chip_root}/third_party/openthread/platforms:libopenthread-platform",
      "${chip_root}/third_party/openthread/platforms:libopenthread-platform-utils",
      "${examples_plat_dir}:efr-matter-shell",
    ]
    if (chip_openthread_ftd) {
      deps += [
        "${chip_root}/third_party/openthread/repo:libopenthread-cli-ftd",
        "${chip_root}/third_party/openthread/repo:libopenthread-ftd",
      ]
    } else {
      deps += [
        "${chip_root}/third_party/openthread/repo:libopenthread-cli-mtd",
        "${chip_root}/third_party/openthread/repo:libopenthread-mtd",
      ]
    }
  }

  if (chip_enable_ota_requestor) {
    defines += [ "EFR32_OTA_ENABLED" ]
    sources += [ "${examples_plat_dir}/OTAConfig.cpp" ]
  }

  # WiFi Settings
  if (chip_enable_wifi) {
    if (use_rs911x) {
      sources += rs911x_src_plat

      # All the stuff from wiseconnect
      sources += rs911x_src_sapi

      # Apparently - the rsi library needs this (though we may not use use it)
      sources += rs911x_src_sock
      include_dirs += rs911x_inc_plat

      if (use_rs911x_sockets) {
        #
        # Using native sockets inside RS911x
        #
        include_dirs += rs911x_sock_inc
      } else {
        #
        # We use LWIP - not built-in sockets
        #
        sources += rs911x_src_lwip
      }
    } else if (use_wf200) {
      sources += wf200_plat_src
      include_dirs += wf200_plat_incs
    }

    if (chip_enable_wifi_ipv4) {
      defines += [ "CHIP_DEVICE_CONFIG_ENABLE_IPV4" ]
    }

    if (rs91x_wpa3_only) {
      # TODO: Change this macro once WF200 support is provided
      defines += [ "WIFI_ENABLE_SECURITY_WPA3=1" ]
    }
  }

  if (!disable_lcd) {
    sources += [
      "${examples_plat_dir}/display/lcd.c",
      "src/LcdPainter.cpp",
    ]
    defines += [ "DISPLAY_ENABLED" ]

    if (show_qr_code) {
      deps += [ "${chip_root}/examples/common/QRCode" ]
      defines += [ "QR_CODE_ENABLED" ]
    }
  }

  if (enable_heap_monitoring) {
    defines += [ "HEAP_MONITORING" ]

    sources += [ "${examples_plat_dir}/MemMonitoring.cpp" ]
  }

  ldscript = "${examples_plat_dir}/ldscripts/${efr32_family}.ld"

  inputs = [ ldscript ]

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

  if (chip_print_memory_usage) {
    ldflags += [
      "-Wl,--print-memory-usage",
      "-fstack-usage",
    ]
  }

  # WiFi Settings
  if (chip_enable_wifi) {
    ldflags += [
      "-Wl,--defsym",
      "-Wl,SILABS_WIFI=1",
    ]
  }

  # Attestation Credentials
  if (chip_build_platform_attestation_credentials_provider) {
    deps += [ "${examples_plat_dir}:efr32-attestation-credentials" ]
  }
}

group("efr32") {
  deps = [ ":window_app" ]
}

group("default") {
  deps = [ ":efr32" ]
}