commit a1746e262ed885a249a6c3125318b5f2739012ac
parent 7503f7c5002681610a0182c0ae9396ab33e5db41
Author: triesap <triesap@radroots.dev>
Date: Fri, 26 Dec 2025 14:41:19 +0000
ble: add Web Bluetooth client API
- Add BLE package scaffolding with build configs and exports
- Implement WebBle session lifecycle with connect/write/notify support
- Define BLE message helpers, types, and structured error codes
- Add EN locale strings for BLE error messages
Diffstat:
12 files changed, 1385 insertions(+), 0 deletions(-)
diff --git a/ble/.gitignore b/ble/.gitignore
@@ -0,0 +1,42 @@
+node_modules
+dist
+.turbo
+
+# Logs
+logs/
+*.log
+
+# Env
+.env
+.env.*
+!.env.example
+!.env.test
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Secrets
+*.pem
+*.crt
+*.key
+
+# Testing
+test*.json
+
+# Editors
+.vscode/
+.idea/
+*.iml
+
+# Notes
+notes*.txt
+notes*.md
+notes*.json
+tree*.txt
+diff*.txt
+prompt*.txt
+
+# Dev
+.local*
+justfile
+\ No newline at end of file
diff --git a/ble/LICENSE b/ble/LICENSE
@@ -0,0 +1,674 @@
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+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
+\ No newline at end of file
diff --git a/ble/package.json b/ble/package.json
@@ -0,0 +1,37 @@
+{
+ "name": "@radroots/ble",
+ "version": "0.0.1",
+ "private": true,
+ "license": "GPLv3",
+ "type": "module",
+ "main": "./dist/cjs/index.js",
+ "module": "./dist/esm/index.js",
+ "types": "./dist/types/index.d.ts",
+ "exports": {
+ ".": {
+ "types": "./dist/types/index.d.ts",
+ "import": "./dist/esm/index.js",
+ "require": "./dist/cjs/index.js"
+ }
+ },
+ "scripts": {
+ "build:esm": "tsc -p tsconfig.esm.json",
+ "build:cjs": "tsc -p tsconfig.cjs.json",
+ "build": "npm run clean && npm run build:esm && npm run build:cjs",
+ "prebuild": "npm run clean",
+ "clean": "rimraf dist",
+ "dev": "npm run watch",
+ "watch": "tsc -w"
+ },
+ "devDependencies": {
+ "@radroots/tsconfig": "workspace:*",
+ "rimraf": "^6.0.1",
+ "typescript": "5.8.3"
+ },
+ "publishConfig": {
+ "access": "public"
+ },
+ "dependencies": {
+ "@radroots/utils": "workspace:*"
+ }
+}
diff --git a/ble/src/error.ts b/ble/src/error.ts
@@ -0,0 +1,23 @@
+export const BLE_ERROR = {
+ window_undefined: "error.client.ble.window_undefined",
+ navigator_undefined: "error.client.ble.navigator_undefined",
+ secure_context_required: "error.client.ble.secure_context_required",
+ unsupported: "error.client.ble.unsupported",
+ unavailable: "error.client.ble.unavailable",
+ permission_denied: "error.client.ble.permission_denied",
+ device_not_found: "error.client.ble.device_not_found",
+ connect_failed: "error.client.ble.connect_failed",
+ service_not_found: "error.client.ble.service_not_found",
+ characteristic_not_found: "error.client.ble.characteristic_not_found",
+ notify_failed: "error.client.ble.notify_failed",
+ write_failed: "error.client.ble.write_failed",
+ read_failed: "error.client.ble.read_failed",
+ disconnected: "error.client.ble.disconnected",
+ abort: "error.client.ble.abort",
+ timeout: "error.client.ble.timeout",
+ invalid_message: "error.client.ble.invalid_message",
+ unknown_error: "error.client.ble.unknown_error"
+} as const;
+
+export type BleError = keyof typeof BLE_ERROR;
+export type BleErrorMessage = (typeof BLE_ERROR)[BleError];
diff --git a/ble/src/index.ts b/ble/src/index.ts
@@ -0,0 +1,4 @@
+export * from "./error.js";
+export * from "./messages.js";
+export * from "./types.js";
+export * from "./web.js";
diff --git a/ble/src/messages.ts b/ble/src/messages.ts
@@ -0,0 +1,29 @@
+import { err_msg, type ResolveErrorMsg } from "@radroots/utils";
+import { BLE_ERROR, type BleErrorMessage } from "./error.js";
+import type { BleMessageEncoding, BleMessageInput } from "./types.js";
+
+export const ble_message_bytes = (value: BleMessageInput): ResolveErrorMsg<Uint8Array, BleErrorMessage> => {
+ if (typeof value === "string") {
+ if (typeof TextEncoder === "undefined") return err_msg(BLE_ERROR.invalid_message);
+ return new TextEncoder().encode(value);
+ }
+ if (value instanceof ArrayBuffer) return new Uint8Array(value);
+ if (ArrayBuffer.isView(value)) return new Uint8Array(value.buffer, value.byteOffset, value.byteLength);
+ return err_msg(BLE_ERROR.invalid_message);
+};
+
+export const ble_message_buffer_source = (bytes: Uint8Array): ArrayBufferView<ArrayBuffer> => {
+ if (bytes.buffer instanceof ArrayBuffer) return new Uint8Array(bytes.buffer, bytes.byteOffset, bytes.byteLength);
+ const copy = new Uint8Array(bytes.byteLength);
+ copy.set(bytes);
+ return copy;
+};
+
+export const ble_message_text = (bytes: Uint8Array, encoding: BleMessageEncoding = "utf-8"): string | undefined => {
+ if (typeof TextDecoder === "undefined") return;
+ try {
+ return new TextDecoder(encoding).decode(bytes);
+ } catch {
+ return;
+ }
+};
diff --git a/ble/src/types.ts b/ble/src/types.ts
@@ -0,0 +1,78 @@
+import type { ResolveErrorMsg } from "@radroots/utils";
+import type { BleErrorMessage } from "./error.js";
+
+export type BleMessageData = string | ArrayBuffer | ArrayBufferView;
+
+export type BleMessageInput = BleMessageData;
+
+export type BleMessageEncoding = "utf-8";
+
+export type BleMessage = {
+ bytes: Uint8Array;
+ timestamp_ms: number;
+};
+
+export type BleAvailability = {
+ supported: boolean;
+ secure_context: boolean;
+ window_available: boolean;
+ navigator_available: boolean;
+ bluetooth_available: boolean;
+};
+
+export type BleAvailabilityState = BleAvailability & {
+ adapter_available: boolean | "unknown";
+};
+
+export type BlePermissionState = PermissionState | "unknown";
+
+export type BleServiceProfile = {
+ service_uuid: string;
+ client_write_uuid: string;
+ client_notify_uuid: string;
+};
+
+export const BLE_MESSAGE_PROFILE: BleServiceProfile = {
+ service_uuid: "7e0b0001-7f62-49e1-9b3f-8e7a2f30a1d1",
+ client_write_uuid: "7e0b0002-7f62-49e1-9b3f-8e7a2f30a1d1",
+ client_notify_uuid: "7e0b0003-7f62-49e1-9b3f-8e7a2f30a1d1"
+};
+
+export type BleDeviceInfo = {
+ id: string;
+ name?: string;
+ connected: boolean;
+};
+
+export type BleMessageHandler = (message: BleMessage) => void;
+export type BleDisconnectHandler = (reason: BleErrorMessage) => void;
+
+export type BleConnectOptions = {
+ signal?: AbortSignal;
+ timeout_ms?: number;
+ profile?: BleServiceProfile;
+ name_prefix?: string;
+ accept_all_devices?: boolean;
+};
+
+export type BleWriteOptions = {
+ signal?: AbortSignal;
+ timeout_ms?: number;
+ without_response?: boolean;
+};
+
+export interface IBleSession {
+ get_active(): boolean;
+ get_device_info(): BleDeviceInfo;
+ send_message(message: BleMessageInput, opts?: BleWriteOptions): Promise<ResolveErrorMsg<void, BleErrorMessage>>;
+ disconnect(): Promise<void>;
+ set_on_message(handler?: BleMessageHandler): void;
+ set_on_disconnect(handler?: BleDisconnectHandler): void;
+}
+
+export interface IBle {
+ availability(): BleAvailability;
+ availability_state(): Promise<BleAvailabilityState>;
+ permission_state(): Promise<BlePermissionState>;
+ connect(opts?: BleConnectOptions): Promise<ResolveErrorMsg<IBleSession, BleErrorMessage>>;
+}
diff --git a/ble/src/web.ts b/ble/src/web.ts
@@ -0,0 +1,443 @@
+import { err_msg, type ResolveErrorMsg } from "@radroots/utils";
+import { BLE_ERROR, type BleErrorMessage } from "./error.js";
+import { ble_message_buffer_source, ble_message_bytes } from "./messages.js";
+import type {
+ BleAvailability,
+ BleAvailabilityState,
+ BleConnectOptions,
+ BleDeviceInfo,
+ BleDisconnectHandler,
+ BleMessageHandler,
+ BleMessageInput,
+ BlePermissionState,
+ BleServiceProfile,
+ BleWriteOptions,
+ IBle,
+ IBleSession
+} from "./types.js";
+import { BLE_MESSAGE_PROFILE } from "./types.js";
+
+type BlePermissionName = PermissionName | "bluetooth" | "bluetooth-le";
+
+type BlePermissionDescriptor = {
+ name: BlePermissionName;
+};
+
+interface PermissionsBle {
+ query(permission_desc: BlePermissionDescriptor): Promise<PermissionStatus>;
+}
+
+interface NavigatorWithPermissions extends Navigator {
+ permissions: PermissionsBle;
+}
+
+interface BleBluetooth {
+ requestDevice(options: BleRequestDeviceOptions): Promise<BleDevice>;
+ getAvailability?(): Promise<boolean>;
+}
+
+interface NavigatorWithBluetooth extends Navigator {
+ bluetooth: BleBluetooth;
+}
+
+type BleRequestDeviceFilter = {
+ services?: string[];
+ namePrefix?: string;
+};
+
+type BleRequestDeviceOptions = {
+ filters?: BleRequestDeviceFilter[];
+ acceptAllDevices?: boolean;
+ optionalServices?: string[];
+};
+
+interface BleDevice {
+ id: string;
+ name?: string;
+ gatt?: BleGattServer;
+ addEventListener(type: "gattserverdisconnected", listener: () => void, options?: AddEventListenerOptions): void;
+ removeEventListener(type: "gattserverdisconnected", listener: () => void, options?: EventListenerOptions): void;
+}
+
+interface BleGattServer {
+ connect(): Promise<BleGattServer>;
+ disconnect(): void;
+ getPrimaryService(uuid: string): Promise<BleGattService>;
+ connected: boolean;
+ device: BleDevice;
+}
+
+interface BleGattService {
+ getCharacteristic(uuid: string): Promise<BleGattCharacteristic>;
+}
+
+interface BleGattCharacteristic {
+ startNotifications(): Promise<BleGattCharacteristic>;
+ stopNotifications?(): Promise<void>;
+ writeValue(value: BufferSource): Promise<void>;
+ writeValueWithoutResponse?(value: BufferSource): Promise<void>;
+ value?: DataView | null;
+ addEventListener(type: "characteristicvaluechanged", listener: (event: Event) => void, options?: AddEventListenerOptions): void;
+ removeEventListener(type: "characteristicvaluechanged", listener: (event: Event) => void): void;
+}
+
+type BleWaitResult<T> = { value: T } | { timeout: true };
+
+const has_permissions_api = (nav: Navigator): nav is NavigatorWithPermissions => "permissions" in nav;
+
+const has_bluetooth = (nav: Navigator): nav is NavigatorWithBluetooth => "bluetooth" in nav;
+
+const read_permission_state = async (nav: Navigator): Promise<BlePermissionState> => {
+ if (!has_permissions_api(nav)) return "unknown";
+ try {
+ const status = await nav.permissions.query({ name: "bluetooth" });
+ return status.state;
+ } catch {
+ try {
+ const status = await nav.permissions.query({ name: "bluetooth-le" });
+ return status.state;
+ } catch {
+ return "unknown";
+ }
+ }
+};
+
+const read_availability = (): BleAvailability => {
+ const window_available = typeof window !== "undefined";
+ const navigator_available = typeof navigator !== "undefined";
+ const secure_context = window_available && window.isSecureContext === true;
+ const bluetooth_available = navigator_available && has_bluetooth(navigator);
+ return {
+ supported: window_available && navigator_available && secure_context && bluetooth_available,
+ secure_context,
+ window_available,
+ navigator_available,
+ bluetooth_available
+ };
+};
+
+const read_adapter_availability = async (bluetooth: BleBluetooth): Promise<boolean | "unknown"> => {
+ if (!bluetooth.getAvailability) return "unknown";
+ try {
+ return await bluetooth.getAvailability();
+ } catch {
+ return "unknown";
+ }
+};
+
+const read_availability_state = async (): Promise<BleAvailabilityState> => {
+ const availability = read_availability();
+ let adapter_available: boolean | "unknown" = "unknown";
+ if (typeof navigator !== "undefined" && has_bluetooth(navigator)) {
+ adapter_available = await read_adapter_availability(navigator.bluetooth);
+ }
+ return { ...availability, adapter_available };
+};
+
+const resolve_request_options = (profile: BleServiceProfile, opts?: BleConnectOptions): BleRequestDeviceOptions => {
+ const optional_services = [profile.service_uuid];
+ if (opts?.accept_all_devices) {
+ return {
+ acceptAllDevices: true,
+ optionalServices: optional_services
+ };
+ }
+ const filter: BleRequestDeviceFilter = {
+ services: [profile.service_uuid]
+ };
+ if (opts?.name_prefix) filter.namePrefix = opts.name_prefix;
+ return {
+ filters: [filter],
+ optionalServices: optional_services
+ };
+};
+
+const map_ble_error = (err: unknown, fallback: BleErrorMessage): BleErrorMessage => {
+ if (typeof DOMException !== "undefined" && err instanceof DOMException) {
+ if (err.name === "AbortError") return BLE_ERROR.abort;
+ if (err.name === "NotAllowedError") return BLE_ERROR.permission_denied;
+ if (err.name === "NotSupportedError") return BLE_ERROR.unsupported;
+ if (err.name === "SecurityError") return BLE_ERROR.secure_context_required;
+ if (err.name === "NotFoundError") return BLE_ERROR.device_not_found;
+ if (err.name === "NetworkError") return BLE_ERROR.connect_failed;
+ if (err.name === "InvalidStateError") return BLE_ERROR.connect_failed;
+ if (err.name === "NotReadableError") return BLE_ERROR.read_failed;
+ }
+ return fallback;
+};
+
+const link_abort_signal = (controller: AbortController, signal?: AbortSignal): void => {
+ if (!signal) return;
+ if (signal.aborted) {
+ controller.abort();
+ return;
+ }
+ signal.addEventListener("abort", () => controller.abort(), { once: true });
+};
+
+const wait_with_timeout = async <T>(promise: Promise<T>, timeout_ms?: number): Promise<BleWaitResult<T>> => {
+ if (!timeout_ms || timeout_ms <= 0) return { value: await promise };
+ let timeout_id: ReturnType<typeof setTimeout> | undefined;
+ const timeout_promise: Promise<{ timeout: true }> = new Promise(resolve => {
+ timeout_id = setTimeout(() => resolve({ timeout: true }), timeout_ms);
+ });
+ const guarded = promise.then(value => ({ value }));
+ const result = await Promise.race([guarded, timeout_promise]);
+ if (timeout_id) clearTimeout(timeout_id);
+ if ("timeout" in result) {
+ void guarded.catch(() => undefined);
+ return result;
+ }
+ return result;
+};
+
+const is_timeout = <T>(value: BleWaitResult<T>): value is { timeout: true } => "timeout" in value;
+
+const is_error = <T>(value: ResolveErrorMsg<T, BleErrorMessage>): value is { err: BleErrorMessage } => {
+ return typeof value === "object" && value !== null && "err" in value;
+};
+
+const build_device_info = (device: BleDevice, gatt: BleGattServer): BleDeviceInfo => {
+ return {
+ id: device.id,
+ name: device.name,
+ connected: gatt.connected
+ };
+};
+
+class BleSession implements IBleSession {
+ private active = true;
+ private on_message?: BleMessageHandler;
+ private on_disconnect?: BleDisconnectHandler;
+ private readonly notify_handler: (event: Event) => void;
+ private readonly disconnect_handler: () => void;
+
+ private constructor(
+ private readonly device: BleDevice,
+ private readonly gatt: BleGattServer,
+ private readonly write_characteristic: BleGattCharacteristic,
+ private readonly notify_characteristic: BleGattCharacteristic
+ ) {
+ this.notify_handler = () => this.handle_notify();
+ this.disconnect_handler = () => this.stop_with_reason(BLE_ERROR.disconnected, true);
+ this.device.addEventListener("gattserverdisconnected", this.disconnect_handler);
+ this.notify_characteristic.addEventListener("characteristicvaluechanged", this.notify_handler);
+ }
+
+ public static async create(
+ device: BleDevice,
+ gatt: BleGattServer,
+ write_characteristic: BleGattCharacteristic,
+ notify_characteristic: BleGattCharacteristic,
+ timeout_ms?: number
+ ): Promise<ResolveErrorMsg<BleSession, BleErrorMessage>> {
+ const session = new BleSession(device, gatt, write_characteristic, notify_characteristic);
+ try {
+ const result = await wait_with_timeout(notify_characteristic.startNotifications(), timeout_ms);
+ if (is_timeout(result)) {
+ session.stop_with_reason(BLE_ERROR.timeout, false);
+ return err_msg(BLE_ERROR.timeout);
+ }
+ return session;
+ } catch (e) {
+ session.stop_with_reason(BLE_ERROR.notify_failed, false);
+ return err_msg(map_ble_error(e, BLE_ERROR.notify_failed));
+ }
+ }
+
+ public get_active(): boolean {
+ return this.active;
+ }
+
+ public get_device_info(): BleDeviceInfo {
+ return build_device_info(this.device, this.gatt);
+ }
+
+ public set_on_message(handler?: BleMessageHandler): void {
+ this.on_message = handler;
+ }
+
+ public set_on_disconnect(handler?: BleDisconnectHandler): void {
+ this.on_disconnect = handler;
+ }
+
+ public async send_message(message: BleMessageInput, opts?: BleWriteOptions): Promise<ResolveErrorMsg<void, BleErrorMessage>> {
+ if (!this.active) return err_msg(BLE_ERROR.disconnected);
+ if (!this.gatt.connected) return err_msg(BLE_ERROR.disconnected);
+
+ const resolved = ble_message_bytes(message);
+ if (is_error(resolved)) return resolved;
+ const payload = ble_message_buffer_source(resolved);
+
+ const controller = new AbortController();
+ link_abort_signal(controller, opts?.signal);
+ if (controller.signal.aborted) return err_msg(BLE_ERROR.abort);
+
+ const write_action = opts?.without_response && this.write_characteristic.writeValueWithoutResponse
+ ? this.write_characteristic.writeValueWithoutResponse(payload)
+ : this.write_characteristic.writeValue(payload);
+
+ try {
+ const result = await wait_with_timeout(write_action, opts?.timeout_ms);
+ if (is_timeout(result)) return err_msg(BLE_ERROR.timeout);
+ if (controller.signal.aborted) return err_msg(BLE_ERROR.abort);
+ return;
+ } catch (e) {
+ if (controller.signal.aborted) return err_msg(BLE_ERROR.abort);
+ return err_msg(map_ble_error(e, BLE_ERROR.write_failed));
+ }
+ }
+
+ public async disconnect(): Promise<void> {
+ this.stop_with_reason(BLE_ERROR.disconnected, true);
+ }
+
+ private handle_notify(): void {
+ if (!this.active) return;
+ const value = this.notify_characteristic.value;
+ if (!value) return;
+ const bytes = new Uint8Array(value.buffer, value.byteOffset, value.byteLength);
+ if (this.on_message) this.on_message({ bytes, timestamp_ms: Date.now() });
+ }
+
+ private stop_with_reason(reason: BleErrorMessage, notify_disconnect: boolean): void {
+ if (!this.active) return;
+ this.active = false;
+ this.device.removeEventListener("gattserverdisconnected", this.disconnect_handler);
+ this.notify_characteristic.removeEventListener("characteristicvaluechanged", this.notify_handler);
+ if (this.notify_characteristic.stopNotifications) void this.notify_characteristic.stopNotifications();
+ if (this.gatt.connected) this.gatt.disconnect();
+ if (notify_disconnect && this.on_disconnect) this.on_disconnect(reason);
+ }
+}
+
+export interface IWebBle extends IBle { }
+
+export class WebBle implements IWebBle {
+ public availability(): BleAvailability {
+ return read_availability();
+ }
+
+ public async availability_state(): Promise<BleAvailabilityState> {
+ return read_availability_state();
+ }
+
+ public async permission_state(): Promise<BlePermissionState> {
+ if (typeof navigator === "undefined") return "unknown";
+ return read_permission_state(navigator);
+ }
+
+ public async connect(opts?: BleConnectOptions): Promise<ResolveErrorMsg<IBleSession, BleErrorMessage>> {
+ const availability = read_availability();
+ if (!availability.window_available) return err_msg(BLE_ERROR.window_undefined);
+ if (!availability.navigator_available) return err_msg(BLE_ERROR.navigator_undefined);
+ if (!availability.secure_context) return err_msg(BLE_ERROR.secure_context_required);
+ if (!availability.bluetooth_available) return err_msg(BLE_ERROR.unsupported);
+
+ if (!has_bluetooth(navigator)) return err_msg(BLE_ERROR.unsupported);
+ const bluetooth = navigator.bluetooth;
+ const adapter_available = await read_adapter_availability(bluetooth);
+ if (adapter_available === false) return err_msg(BLE_ERROR.unavailable);
+ const permission_state = await read_permission_state(navigator);
+ if (permission_state === "denied") return err_msg(BLE_ERROR.permission_denied);
+
+ const controller = new AbortController();
+ link_abort_signal(controller, opts?.signal);
+ if (controller.signal.aborted) return err_msg(BLE_ERROR.abort);
+
+ const profile = opts?.profile ?? BLE_MESSAGE_PROFILE;
+ const request_options = resolve_request_options(profile, opts);
+
+ let device: BleDevice;
+ try {
+ device = await bluetooth.requestDevice(request_options);
+ } catch (e) {
+ return err_msg(map_ble_error(e, BLE_ERROR.connect_failed));
+ }
+
+ if (controller.signal.aborted) return err_msg(BLE_ERROR.abort);
+ if (!device.gatt) return err_msg(BLE_ERROR.connect_failed);
+
+ let server: BleGattServer;
+ try {
+ const result = await wait_with_timeout(device.gatt.connect(), opts?.timeout_ms);
+ if (is_timeout(result)) return err_msg(BLE_ERROR.timeout);
+ server = result.value;
+ } catch (e) {
+ return err_msg(map_ble_error(e, BLE_ERROR.connect_failed));
+ }
+
+ if (controller.signal.aborted) {
+ server.disconnect();
+ return err_msg(BLE_ERROR.abort);
+ }
+
+ let service: BleGattService;
+ try {
+ const result = await wait_with_timeout(server.getPrimaryService(profile.service_uuid), opts?.timeout_ms);
+ if (is_timeout(result)) {
+ server.disconnect();
+ return err_msg(BLE_ERROR.timeout);
+ }
+ service = result.value;
+ } catch (e) {
+ server.disconnect();
+ return err_msg(map_ble_error(e, BLE_ERROR.service_not_found));
+ }
+ if (controller.signal.aborted) {
+ server.disconnect();
+ return err_msg(BLE_ERROR.abort);
+ }
+
+ let write_characteristic: BleGattCharacteristic;
+ try {
+ const result = await wait_with_timeout(service.getCharacteristic(profile.client_write_uuid), opts?.timeout_ms);
+ if (is_timeout(result)) {
+ server.disconnect();
+ return err_msg(BLE_ERROR.timeout);
+ }
+ write_characteristic = result.value;
+ } catch (e) {
+ server.disconnect();
+ return err_msg(map_ble_error(e, BLE_ERROR.characteristic_not_found));
+ }
+ if (controller.signal.aborted) {
+ server.disconnect();
+ return err_msg(BLE_ERROR.abort);
+ }
+
+ let notify_characteristic: BleGattCharacteristic;
+ try {
+ const result = await wait_with_timeout(service.getCharacteristic(profile.client_notify_uuid), opts?.timeout_ms);
+ if (is_timeout(result)) {
+ server.disconnect();
+ return err_msg(BLE_ERROR.timeout);
+ }
+ notify_characteristic = result.value;
+ } catch (e) {
+ server.disconnect();
+ return err_msg(map_ble_error(e, BLE_ERROR.characteristic_not_found));
+ }
+ if (controller.signal.aborted) {
+ server.disconnect();
+ return err_msg(BLE_ERROR.abort);
+ }
+
+ const session = await BleSession.create(
+ device,
+ server,
+ write_characteristic,
+ notify_characteristic,
+ opts?.timeout_ms
+ );
+ if (is_error(session)) {
+ server.disconnect();
+ return session;
+ }
+ if (controller.signal.aborted) {
+ await session.disconnect();
+ return err_msg(BLE_ERROR.abort);
+ }
+ return session;
+ }
+}
diff --git a/ble/tsconfig.cjs.json b/ble/tsconfig.cjs.json
@@ -0,0 +1,16 @@
+{
+ "extends": "@radroots/tsconfig/tsconfig.esm.json",
+ "compilerOptions": {
+ "module": "CommonJS",
+ "moduleResolution": "Node",
+ "lib": ["dom", "ES2022"],
+ "rootDir": "./src",
+ "outDir": "dist/cjs",
+ "declaration": false,
+ "declarationMap": false,
+ "emitDeclarationOnly": false,
+ "tsBuildInfoFile": "node_modules/.cache/tsc.utils-ble.cjs.tsbuildinfo"
+ },
+ "include": ["src"],
+ "exclude": ["node_modules", "dist"]
+}
diff --git a/ble/tsconfig.esm.json b/ble/tsconfig.esm.json
@@ -0,0 +1,14 @@
+{
+ "extends": "@radroots/tsconfig/tsconfig.esm.json",
+ "compilerOptions": {
+ "moduleResolution": "nodenext",
+ "lib": ["dom", "ES2022"],
+ "rootDir": "./src",
+ "outDir": "dist/esm",
+ "declaration": true,
+ "declarationMap": true,
+ "declarationDir": "dist/types"
+ },
+ "include": ["src"],
+ "exclude": ["node_modules", "dist"]
+}
diff --git a/ble/tsconfig.json b/ble/tsconfig.json
@@ -0,0 +1,3 @@
+{
+ "extends": "./tsconfig.esm.json"
+}
diff --git a/locales/src/messages/en/error.json b/locales/src/messages/en/error.json
@@ -33,6 +33,26 @@
"invalid_message": "NFC message is invalid",
"unknown_error": "NFC encountered an unknown error"
},
+ "ble": {
+ "window_undefined": "The window context is unavailable",
+ "navigator_undefined": "The navigator context is unavailable",
+ "secure_context_required": "Bluetooth requires a secure context (HTTPS)",
+ "unsupported": "Bluetooth is not supported on this device",
+ "unavailable": "Bluetooth is unavailable or disabled",
+ "permission_denied": "Bluetooth permission was denied",
+ "device_not_found": "No Bluetooth device was selected",
+ "connect_failed": "Unable to connect over Bluetooth",
+ "service_not_found": "Bluetooth service was not found",
+ "characteristic_not_found": "Bluetooth characteristic was not found",
+ "notify_failed": "Unable to enable Bluetooth notifications",
+ "write_failed": "Bluetooth write failed",
+ "read_failed": "Bluetooth read failed",
+ "disconnected": "Bluetooth device disconnected",
+ "abort": "Bluetooth operation was aborted",
+ "timeout": "Bluetooth operation timed out",
+ "invalid_message": "Bluetooth message is invalid",
+ "unknown_error": "Bluetooth encountered an unknown error"
+ },
"undefined_window": "The window context is unavailable",
"nostr": {
"missing_public_key": "There is no public key available",
