67 lines
1.5 KiB
TypeScript
67 lines
1.5 KiB
TypeScript
import { AuthData } from "home-assistant-js-websocket";
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const storage = window.localStorage || {};
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declare global {
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interface Window {
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__tokenCache: {
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// undefined: we haven't loaded yet
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// null: none stored
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tokens?: AuthData | null;
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writeEnabled?: boolean;
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};
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}
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}
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// So that core.js and main app hit same shared object.
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let tokenCache = window.__tokenCache;
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if (!tokenCache) {
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tokenCache = window.__tokenCache = {
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tokens: undefined,
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writeEnabled: undefined,
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};
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}
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export function askWrite() {
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return (
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tokenCache.tokens !== undefined && tokenCache.writeEnabled === undefined
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);
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}
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export function saveTokens(tokens: AuthData | null) {
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tokenCache.tokens = tokens;
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if (tokenCache.writeEnabled) {
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try {
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storage.hassTokens = JSON.stringify(tokens);
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} catch (err: any) {
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// write failed, ignore it. Happens if storage is full or private mode.
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}
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}
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}
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export function enableWrite() {
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tokenCache.writeEnabled = true;
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if (tokenCache.tokens) {
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saveTokens(tokenCache.tokens);
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}
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}
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export function loadTokens() {
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if (tokenCache.tokens === undefined) {
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try {
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// Delete the old token cache.
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delete storage.tokens;
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const tokens = storage.hassTokens;
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if (tokens) {
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tokenCache.tokens = JSON.parse(tokens);
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tokenCache.writeEnabled = true;
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} else {
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tokenCache.tokens = null;
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}
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} catch (err: any) {
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tokenCache.tokens = null;
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}
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}
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return tokenCache.tokens;
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}
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