discovery: generate capability JSON from the registry

A capability is a descriptor plus what the endpoint declares (device/Capability.ts), and its discovery object is
generated from the two. The new API is bridge.addDevice({ endpointId, name, categories, ... }) and
device.add(PowerController, options): both throw a DeclarationError that names the endpoint, the interface and
the instance (device/validate.ts), and leave the bridge and the device as they were. AlexaInterface is the same
Capability with the 1.x methods on it; it, ActionMapping and the enums moved to src/compat/, Device to src/device/.

What a 1.x caller can observe:
- every endpoint ends with { type: "AlexaInterface", interface: "Alexa", version: "3" } (alexa-interface.html);
  new Alex2MQTT(..., { alexaInterface: false }) leaves it out
- the fields of a capability object come in the order of Amazon's examples; their content is unchanged
- addCapability() with a name that is not an interface throws (1.5.2 announced it with the version "UNKNOWN")
- ActionMapping takes the payload as an object; a JSON string is parsed (1.5.2 sent the string), any other throws
- what Alexa would reject in a 1.x declaration is not refused: device.check() lists it and the bridge logs each
  line once, as "warning: ..." through the log hook, when it answers a discovery
- a device whose JSON cannot be built is left out of the answer and reported as an error event
- PowerController and EndpointHealth are the descriptors and keep ON/OFF and OK/UNREACHABLE; PowerState is new

Tests: six zoo devices declared the 1.x way give the JSON that Alexa accepted from 1.5.2 on 2026-09-28, plus the
Alexa capability. npm test: 85 pass (was 57) in 10-12 s, also on Node 18.20.8 and 20.20.2.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
David 2026-09-28 15:35:46 +00:00
parent aa0ffd64ea
commit c492ef74d1
90 changed files with 5539 additions and 1760 deletions

49
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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ActionMapping = void 0;
const types_js_1 = require("../registry/types.js");
/**
* A semantics action mapping of 1.x: the phrases "open", "close", "raise", "lower" for one directive of the
* capability it is added to.
*
* toggle.addActionMapping(new ActionMapping([AlexaActions.Close], "TurnOff"));
* lift.addActionMapping(new ActionMapping([AlexaActions.Open], "SetRangeValue", { rangeValue: 100 }));
*/
class ActionMapping {
/**
* directivePayload is the payload object of the directive (alexa-discovery-objects.html, "ActionMappings object").
* 1.x took a string and put it into discovery as one. A string that holds a JSON object is parsed; any other
* string throws a DeclarationError.
*/
constructor(actions, directiveName, directivePayload) {
this.type = "ActionsToDirective";
this.actions = actions;
this.directive = { name: directiveName };
if (typeof directivePayload === "string") {
if (directivePayload === "")
return;
this.directive.payload = objectIn(directivePayload, directiveName);
this.deprecation = `the payload of the action mapping for ${directiveName} is a JSON string, pass the object`;
}
else if (directivePayload) {
this.directive.payload = directivePayload;
}
}
toJSON() {
return { "@type": this.type, actions: this.actions, directive: this.directive };
}
}
exports.ActionMapping = ActionMapping;
function objectIn(text, directiveName) {
let value;
try {
value = JSON.parse(text);
}
catch {
value = undefined;
}
if (typeof value !== "object" || value === null || Array.isArray(value)) {
throw new types_js_1.DeclarationError({}, `the payload of the action mapping for ${directiveName} is an object, got the string ${JSON.stringify(text)}`);
}
return value;
}

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.AlexaInterface = void 0;
const Capability_js_1 = require("../device/Capability.js");
const index_js_1 = require("../registry/index.js");
const resources_js_1 = require("../registry/resources.js");
/**
* A capability as 1.x declares it: device.addCapability(type, options), then the add and set methods below. It is a
* Capability, so what the methods set reaches discovery the same way as the options of device.add(). Nothing is
* refused here except an interface name the registry does not have: what Alexa would reject is logged by the bridge
* when it answers a discovery.
*/
class AlexaInterface extends Capability_js_1.Capability {
constructor(type, retrievable = true, proactivelyReported = false, instance = "") {
super(index_js_1.registry.get(type), { retrievable, proactivelyReported, instance, options: {} });
}
/** The namespace of the interface, which is the value of its AlexaInterfaceType member. */
get type() {
return this.descriptor.namespace;
}
addActionMapping(mapping) {
var _a;
const semantics = ((_a = this.options).semantics ?? (_a.semantics = {}));
(semantics.actionMappings ?? (semantics.actionMappings = [])).push(mapping.toJSON());
if (mapping.deprecation)
this.notes.push(mapping.deprecation);
}
addFriendlyName(name, locale) {
this.friendlyNames.push((0, resources_js_1.text)(name, locale));
}
/** The modes of a ModeController, as { value, modeResources } objects. */
addSupportedModes(modes) {
this.options.supportedModes = modes;
}
setInstance(name) {
this.instance = name;
}
getType() {
return this.type;
}
/** @deprecated The same as getType(). */
getTypeString() {
return this.type;
}
/** @deprecated Read descriptor.version. */
getVersion() {
return this.descriptor.version;
}
/** @deprecated Read the keys of descriptor.properties. */
getProps() {
return Object.keys(this.descriptor.properties);
}
getJSON() {
return super.toJSON();
}
// 1.x callers corrected the discovery JSON by replacing getJSON on the object: discovery goes through it
toJSON() {
return this.getJSON();
}
}
exports.AlexaInterface = AlexaInterface;

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.EndpointHealth = exports.PowerController = exports.PowerState = exports.AlexaActions = exports.DisplayCategory = exports.AlexaInterfaceType = void 0;
// The enums of 1.x, under their 1.x names.
const EndpointHealth_js_1 = require("../registry/interfaces/EndpointHealth.js");
const PowerController_js_1 = require("../registry/interfaces/PowerController.js");
/** Every interface name of 1.x. registry.get() takes a member as it takes the namespace, which is its value. */
var AlexaInterfaceType;
(function (AlexaInterfaceType) {
AlexaInterfaceType["APPLICATION_STATE_REPORTER"] = "Alexa.ApplicationStateReporter";
AlexaInterfaceType["AUDIO_PLAY_QUEUE"] = "Alexa.Audio.PlayQueue";
AlexaInterfaceType["AUTHORIZATION_CONTROLLER"] = "Alexa.AuthorizationController";
AlexaInterfaceType["AUTOMATION_MANAGEMENT"] = "Alexa.AutomationManagement";
AlexaInterfaceType["AUTOMOTIVE_VEHICLE_DATA"] = "Alexa.Automotive.VehicleData";
AlexaInterfaceType["BRIGHTNESS_CONTROLLER"] = "Alexa.BrightnessController";
AlexaInterfaceType["CAMERA_LIVE_VIEW_CONTROLLER"] = "Alexa.Camera.LiveViewController";
AlexaInterfaceType["CAMERA_STREAM_CONTROLLER"] = "Alexa.CameraStreamController";
AlexaInterfaceType["CHANNEL_CONTROLLER"] = "Alexa.ChannelController";
AlexaInterfaceType["COLOR_CONTROLLER"] = "Alexa.ColorController";
AlexaInterfaceType["COLOR_TEMPERATURE_CONTROLLER"] = "Alexa.ColorTemperatureController";
AlexaInterfaceType["COMMISSIONABLE"] = "Alexa.Commissionable";
AlexaInterfaceType["CONSENT_MANAGEMENT_CONSENT_REQUIRED_REPORTER"] = "Alexa.ConsentManagement.ConsentRequiredReporter";
AlexaInterfaceType["CONTACT_SENSOR"] = "Alexa.ContactSensor";
AlexaInterfaceType["COOKING"] = "Alexa.Cooking";
AlexaInterfaceType["COOKING_FOOD_TEMPERATURE_CONTROLLER"] = "Alexa.Cooking.FoodTemperatureController";
AlexaInterfaceType["COOKING_FOOD_TEMPERATURE_SENSOR"] = "Alexa.Cooking.FoodTemperatureSensor";
AlexaInterfaceType["COOKING_PRESET_CONTROLLER"] = "Alexa.Cooking.PresetController";
AlexaInterfaceType["COOKING_TEMPERATURE_CONTROLLER"] = "Alexa.Cooking.TemperatureController";
AlexaInterfaceType["COOKING_TEMPERATURE_SENSOR"] = "Alexa.Cooking.TemperatureSensor";
AlexaInterfaceType["COOKING_TIME_CONTROLLER"] = "Alexa.Cooking.TimeController";
AlexaInterfaceType["DATA_CONTROLLER"] = "Alexa.DataController";
AlexaInterfaceType["DEVICE_USAGE_ESTIMATION"] = "Alexa.DeviceUsage.Estimation";
AlexaInterfaceType["DEVICE_USAGE_METER"] = "Alexa.DeviceUsage.Meter";
AlexaInterfaceType["DOORBELL_EVENT_SOURCE"] = "Alexa.DoorbellEventSource";
AlexaInterfaceType["ENDPOINT_HEALTH"] = "Alexa.EndpointHealth";
AlexaInterfaceType["EQUALIZER_CONTROLLER"] = "Alexa.EqualizerController";
AlexaInterfaceType["INPUT_CONTROLLER"] = "Alexa.InputController";
AlexaInterfaceType["INVENTORY_LEVEL_SENSOR"] = "Alexa.InventoryLevelSensor";
AlexaInterfaceType["INVENTORY_LEVEL_USAGE_SENSOR"] = "Alexa.InventoryLevelUsageSensor";
AlexaInterfaceType["INVENTORY_USAGE_SENSOR"] = "Alexa.InventoryUsageSensor";
AlexaInterfaceType["KEYPAD_CONTROLLER"] = "Alexa.KeypadController";
AlexaInterfaceType["LAUNCHER"] = "Alexa.Launcher";
AlexaInterfaceType["LOCK_CONTROLLER"] = "Alexa.LockController";
AlexaInterfaceType["MEDIA_PLAYBACK"] = "Alexa.Media.Playback";
AlexaInterfaceType["MEDIA_PLAY_QUEUE"] = "Alexa.Media.PlayQueue";
AlexaInterfaceType["MEDIA_SEARCH"] = "Alexa.Media.Search";
AlexaInterfaceType["MODE_CONTROLLER"] = "Alexa.ModeController";
AlexaInterfaceType["MOTION_SENSOR"] = "Alexa.MotionSensor";
AlexaInterfaceType["PERCENTAGE_CONTROLLER"] = "Alexa.PercentageController";
AlexaInterfaceType["PLAYBACK_CONTROLLER"] = "Alexa.PlaybackController";
AlexaInterfaceType["PLAYBACK_STATE_REPORTER"] = "Alexa.PlaybackStateReporter";
AlexaInterfaceType["POWER_CONTROLLER"] = "Alexa.PowerController";
AlexaInterfaceType["POWER_LEVEL_CONTROLLER"] = "Alexa.PowerLevelController";
AlexaInterfaceType["PROACTIVE_NOTIFICATION_SOURCE"] = "Alexa.ProactiveNotificationSource";
AlexaInterfaceType["RANGE_CONTROLLER"] = "Alexa.RangeController";
AlexaInterfaceType["RECORD_CONTROLLER"] = "Alexa.RecordController";
AlexaInterfaceType["REMOTE_VIDEO_PLAYER"] = "Alexa.RemoteVideoPlayer";
AlexaInterfaceType["RTC_SESSION_CONTROLLER"] = "Alexa.RTCSessionController";
AlexaInterfaceType["SCENE_CONTROLLER"] = "Alexa.SceneController";
AlexaInterfaceType["SECURITY_PANEL_CONTROLLER"] = "Alexa.SecurityPanelController";
AlexaInterfaceType["SECURITY_PANEL_CONTROLLER_ALERT"] = "Alexa.SecurityPanelController.Alert";
AlexaInterfaceType["SEEK_CONTROLLER"] = "Alexa.SeekController";
AlexaInterfaceType["SIMPLE_EVENT_SOURCE"] = "Alexa.SimpleEventSource";
AlexaInterfaceType["SMART_VISION_OBJECT_DETECTION_SENSOR"] = "Alexa.SmartVision.ObjectDetectionSensor";
AlexaInterfaceType["SMART_VISION_SNAPSHOT_PROVIDER"] = "Alexa.SmartVision.SnapshotProvider";
AlexaInterfaceType["SPEAKER"] = "Alexa.Speaker";
AlexaInterfaceType["STEP_SPEAKER"] = "Alexa.StepSpeaker";
AlexaInterfaceType["TEMPERATURE_SENSOR"] = "Alexa.TemperatureSensor";
AlexaInterfaceType["THERMOSTAT_CONTROLLER"] = "Alexa.ThermostatController";
AlexaInterfaceType["THERMOSTAT_CONTROLLER_CONFIGURATION"] = "Alexa.ThermostatController.Configuration";
AlexaInterfaceType["THERMOSTAT_CONTROLLER_HVAC_COMPONENTS"] = "Alexa.ThermostatController.HVAC.Components";
AlexaInterfaceType["THERMOSTAT_CONTROLLER_SCHEDULE"] = "Alexa.ThermostatController.Schedule";
AlexaInterfaceType["TIME_HOLD_CONTROLLER"] = "Alexa.TimeHoldController";
AlexaInterfaceType["TOGGLE_CONTROLLER"] = "Alexa.ToggleController";
AlexaInterfaceType["UI_CONTROLLER"] = "Alexa.UIController";
AlexaInterfaceType["USER_PREFERENCE"] = "Alexa.UserPreference";
AlexaInterfaceType["VIDEO_RECORDER"] = "Alexa.VideoRecorder";
AlexaInterfaceType["WAKE_ON_LAN_CONTROLLER"] = "Alexa.WakeOnLANController";
/** Not an interface: declaring it throws a DeclarationError. Kept because 1.x had it. */
AlexaInterfaceType["UNKNOWN"] = "UNKNOWN";
})(AlexaInterfaceType || (exports.AlexaInterfaceType = AlexaInterfaceType = {}));
var DisplayCategory;
(function (DisplayCategory) {
DisplayCategory["ACTIVITY_TRIGGER"] = "ACTIVITY_TRIGGER";
DisplayCategory["AIR_CONDITIONER"] = "AIR_CONDITIONER";
DisplayCategory["AIR_FRESHENER"] = "AIR_FRESHENER";
DisplayCategory["AIR_PURIFIER"] = "AIR_PURIFIER";
DisplayCategory["AIR_QUALITY_MONITOR"] = "AIR_QUALITY_MONITOR";
DisplayCategory["ALEXA_VOICE_ENABLED"] = "ALEXA_VOICE_ENABLED";
DisplayCategory["AUTO_ACCESSORY"] = "AUTO_ACCESSORY";
DisplayCategory["BLUETOOTH_SPEAKER"] = "BLUETOOTH_SPEAKER";
DisplayCategory["CAMERA"] = "CAMERA";
DisplayCategory["CHRISTMAS_TREE"] = "CHRISTMAS_TREE";
DisplayCategory["COFFEE_MAKER"] = "COFFEE_MAKER";
DisplayCategory["COMPUTER"] = "COMPUTER";
DisplayCategory["CONTACT_SENSOR"] = "CONTACT_SENSOR";
DisplayCategory["DISHWASHER"] = "DISHWASHER";
DisplayCategory["DOOR"] = "DOOR";
DisplayCategory["DOORBELL"] = "DOORBELL";
DisplayCategory["DRYER"] = "DRYER";
DisplayCategory["EXTERIOR_BLIND"] = "EXTERIOR_BLIND";
DisplayCategory["FAN"] = "FAN";
DisplayCategory["GAME_CONSOLE"] = "GAME_CONSOLE";
DisplayCategory["GARAGE_DOOR"] = "GARAGE_DOOR";
DisplayCategory["HEADPHONES"] = "HEADPHONES";
DisplayCategory["HUB"] = "HUB";
DisplayCategory["INTERIOR_BLIND"] = "INTERIOR_BLIND";
DisplayCategory["LAPTOP"] = "LAPTOP";
DisplayCategory["LIGHT"] = "LIGHT";
DisplayCategory["MICROWAVE"] = "MICROWAVE";
DisplayCategory["MOBILE_PHONE"] = "MOBILE_PHONE";
DisplayCategory["MOTION_SENSOR"] = "MOTION_SENSOR";
DisplayCategory["MUSIC_SYSTEM"] = "MUSIC_SYSTEM";
DisplayCategory["NETWORK_HARDWARE"] = "NETWORK_HARDWARE";
DisplayCategory["OTHER"] = "OTHER";
DisplayCategory["OVEN"] = "OVEN";
DisplayCategory["PHONE"] = "PHONE";
DisplayCategory["PRINTER"] = "PRINTER";
DisplayCategory["REMOTE"] = "REMOTE";
DisplayCategory["ROUTER"] = "ROUTER";
DisplayCategory["SCENE_TRIGGER"] = "SCENE_TRIGGER";
DisplayCategory["SCREEN"] = "SCREEN";
DisplayCategory["SECURITY_PANEL"] = "SECURITY_PANEL";
DisplayCategory["SECURITY_SYSTEM"] = "SECURITY_SYSTEM";
DisplayCategory["SLOW_COOKER"] = "SLOW_COOKER";
DisplayCategory["SMARTLOCK"] = "SMARTLOCK";
DisplayCategory["SMARTPLUG"] = "SMARTPLUG";
DisplayCategory["SPEAKER"] = "SPEAKER";
DisplayCategory["STREAMING_DEVICE"] = "STREAMING_DEVICE";
DisplayCategory["SWITCH"] = "SWITCH";
DisplayCategory["TABLET"] = "TABLET";
DisplayCategory["TEMPERATURE_SENSOR"] = "TEMPERATURE_SENSOR";
DisplayCategory["THERMOSTAT"] = "THERMOSTAT";
DisplayCategory["TV"] = "TV";
DisplayCategory["VACUUM_CLEANER"] = "VACUUM_CLEANER";
DisplayCategory["VACUUM"] = "VACUUM";
/** Not on the list of display categories any more; kept for 1.x callers. */
DisplayCategory["VEHICLE"] = "VEHICLE";
DisplayCategory["WASHER"] = "WASHER";
DisplayCategory["WATER_HEATER"] = "WATER_HEATER";
DisplayCategory["WEARABLE"] = "WEARABLE";
})(DisplayCategory || (exports.DisplayCategory = DisplayCategory = {}));
var AlexaActions;
(function (AlexaActions) {
AlexaActions["Open"] = "Alexa.Actions.Open";
AlexaActions["Close"] = "Alexa.Actions.Close";
AlexaActions["Raise"] = "Alexa.Actions.Raise";
AlexaActions["Lower"] = "Alexa.Actions.Lower";
AlexaActions["SetEcoOn"] = "Alexa.Actions.SetEcoOn";
AlexaActions["SetEcoOff"] = "Alexa.Actions.SetEcoOff";
})(AlexaActions || (exports.AlexaActions = AlexaActions = {}));
/** The values of powerState and toggleState. */
exports.PowerState = { ON: "ON", OFF: "OFF" };
const Connectivity = { OK: "OK", UNREACHABLE: "UNREACHABLE" };
// PowerController and EndpointHealth were enums in 1.x and are the names of two interfaces. One export serves both:
// the descriptor, which also has the members of the enum, and a type of the same name for the values.
/**
* The Alexa.PowerController interface, for device.add(). PowerController.ON and PowerController.OFF are the 1.x enum
* of power states and stay until 3.0: PowerState has the same two members.
*/
exports.PowerController = Object.assign(PowerController_js_1.PowerController, exports.PowerState);
/** The Alexa.EndpointHealth interface, for device.add(). EndpointHealth.OK and EndpointHealth.UNREACHABLE are the 1.x enum of connectivity values. */
exports.EndpointHealth = Object.assign(EndpointHealth_js_1.EndpointHealth, Connectivity);