feat(companion): implement ble

aris/apps/companion/store/ble.ts

@@ -0,0 +1,61 @@
+import type { EventSubscription } from "expo-modules-core";
+import { create } from "zustand";
+
+import { fullFeedFixture } from "@/lib/ble/fixtures";
+import { Ble, defaultBleState } from "@aris/ble";
+import type { BleStatePayload } from "@aris/ble";
+
+export type BleStoreState = BleStatePayload & {
+	isSupported: boolean;
+	isReady: boolean;
+	initialize: () => void;
+	setAdvertisingEnabled: (enabled: boolean) => void;
+	setWifiRequested: (requested: boolean) => void;
+	sendFixtureFeedNow: () => void;
+};
+
+let subscription: EventSubscription | null = null;
+
+const noopSubscription: EventSubscription = {
+	remove: () => undefined,
+};
+
+export const useBleStore = create<BleStoreState>((set, get) => ({
+	...defaultBleState,
+	isSupported: Ble.isSupported,
+	isReady: false,
+	initialize: () => {
+		if (!Ble.isSupported || get().isReady) {
+			return;
+		}
+		const state = Ble.getState();
+		set({ ...state, isReady: true });
+		subscription?.remove();
+		subscription =
+			Ble.addStateListener?.((nextState) => {
+				set({ ...nextState });
+			}) ?? noopSubscription;
+		Ble.start();
+	},
+	setAdvertisingEnabled: (enabled) => {
+		if (!Ble.isSupported) {
+			return;
+		}
+		set({ advertisingEnabled: enabled });
+		Ble.setAdvertisingEnabled(enabled);
+	},
+	setWifiRequested: (requested) => {
+		if (!Ble.isSupported) {
+			return;
+		}
+		set({ wifiRequested: requested });
+		Ble.setWifiRequested(requested);
+	},
+	sendFixtureFeedNow: () => {
+		if (!Ble.isSupported) {
+			return;
+		}
+		const payload = JSON.stringify(fullFeedFixture);
+		Ble.sendOpaque(payload, 1);
+	},
+}));