refactor: refactor steelseries api to point that it work only with lo…

…calhost (#12)

src/api.ts

@@ -1,4 +1,5 @@
 import { GameSenseDescription, GameSenseEvent, GameSenseRegisterEvents, GameSenseStopEvent } from './types';
+import { getPortFromUrl } from './utils/getPortFromUrl';
 
 interface Events {
 	game_metadata: GameSenseDescription;
@@ -8,10 +9,13 @@ interface Events {
 }
 
 export class SteelSeriesApi {
-	constructor(public apiUrl: string) {}
+	private readonly port: number;
+	constructor(address: string) {
+		this.port = getPortFromUrl(address);
+	}
 
 	async send<Method extends keyof Events>(method: Method, body: Events[Method]): Promise<void> {
-		await fetch(`http://${this.apiUrl}/${method}`, {
+		await fetch(`http://localhost:${this.port}/${method}`, {
 			method: 'POST',
 			body: JSON.stringify(body),
 			headers: {

src/steelseriesConfig.ts

@@ -1,7 +1,7 @@
 import { STEEL_SERIES_CONFIG_PATH } from './constants/steelseries';
 
-export const resolveSteelseriesAddress = () => {
-	return new Promise<string>((resolve, reject) => {
+export const resolveSteelseriesAddress = (): Promise<string> => {
+	return new Promise((resolve, reject) => {
 		const xhr = new XMLHttpRequest();
 
 		xhr.open('GET', STEEL_SERIES_CONFIG_PATH);

src/storage.ts

@@ -8,7 +8,7 @@ export const getAddressWithStorage = async (): Promise<string | undefined> => {
 	});
 };
 
-export const writeAddressIntoStorage = async (address: string) => {
+export const writeAddressIntoStorage = async (address: string): Promise<void> => {
 	await chrome.storage.local.set({
 		[STEEL_SERIES_API_STORAGE_KEY]: address,
 	});

src/utils/getPortFromUrl.ts

@@ -0,0 +1,9 @@
+export const getPortFromUrl = (address: string): number => {
+	const match = address.match(/:(\d+)$/);
+
+	if (!match) {
+		throw new Error(`Cannot get port from address "${address}"`);
+	}
+
+	return +match[1];
+};