examples/all-devices-app/all-devices-common/devices/enabled_devices.gni

# Copyright (c) 2026 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.

# Authoritative device-selection configuration for the GN (POSIX) build.
# Parallel to all-devices-common/devices/enabled_devices.cmake for the CMake build.
import("//build_overrides/build.gni")
import("//build_overrides/chip.gni")
import("${chip_root}/build/chip/buildconfig_header.gni")
declare_args() {
  # List of device types to enable. Empty list (default) means all devices.
  # Use the factory registry key for each device: "contact-sensor", "on-off-light", etc.
  all_devices_enabled_devices = []

  # Output binary name override. Empty string (default) means auto-computed:
  #   all devices enabled  →  "all-devices-app"
  #   subset selected      →  "example-device-app"
  # Any non-empty value is used as-is regardless of the device list.
  all_devices_app_name = ""
}

# Private helper — only used within this file.
_all_devices_all_enabled = all_devices_enabled_devices == []

# Devices available: list of "config name" and "define suffix"
#
# Added define suffix because gn has no "to uppercase" method beyond executing a script
# and exec_script seemed excessive.
#
# IMPORTANT:
#   - Keep list in sync with enabled_devices.cmake
#   - Remember to also update enabled_devices_config.h.in
#   - Update scripts/build/build/targets.py to include the new device
_available_devices = [
  [
    "chime",
    "CHIME",
  ],
  [
    "contact-sensor",
    "CONTACT_SENSOR",
  ],
  [
    "dimmable-light",
    "DIMMABLE_LIGHT",
  ],
  [
    "network-infrastructure-manager",
    "NETWORK_INFRASTRUCTURE_MANAGER",
  ],
  [
    "occupancy-sensor",
    "OCCUPANCY_SENSOR",
  ],
  [
    "on-off-light",
    "ON_OFF_LIGHT",
  ],
  [
    "proximity-ranger",
    "PROXIMITY_RANGER",
  ],
  [
    "soil-sensor",
    "SOIL_SENSOR",
  ],
  [
    "speaker",
    "SPEAKER",
  ],
  [
    "temperature-sensor",
    "TEMPERATURE_SENSOR",
  ],
  [
    "water-leak-detector",
    "WATER_LEAK_DETECTOR",
  ],
]

# Computed output binary name — mirrors the three-way logic in enabled_devices.cmake.
# Exported (no leading underscore) so that posix/BUILD.gn can use it as output_name.
if (all_devices_app_name != "") {
  all_devices_computed_name = all_devices_app_name
} else if (all_devices_enabled_devices == []) {
  all_devices_computed_name = "all-devices-app"
} else {
  all_devices_computed_name = "example-device-app"
}

template("enabled_devices_buildconfig_header") {
  buildconfig_header(target_name) {
    forward_variables_from(invoker,
                           [
                             "header",
                             "header_dir",
                           ])

    defines = []

    foreach(_available_device, _available_devices) {
      _enabled = _all_devices_all_enabled
      foreach(_device, all_devices_enabled_devices) {
        if (_device == _available_device[0]) {
          _enabled = true
        }
      }
      _name = _available_device[1]
      defines += [ "ALL_DEVICES_ENABLE_${_name}=${_enabled}" ]
    }
  }
}