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);
	},
}));