Homelabtoolkit v2

homescreen_editor/lib/server/emby-user-context-cache.js

@@ -0,0 +1,60 @@
+import { existsSync, mkdirSync, readFileSync, writeFileSync } from 'fs';
+import { dirname, resolve } from 'path';
+
+const CACHE_PATH = resolve('.cache', 'emby-user-context.json');
+
+function ensureCacheDir() {
+	const dir = dirname(CACHE_PATH);
+	if (!existsSync(dir)) {
+		mkdirSync(dir, { recursive: true });
+	}
+}
+
+function normalizeGuid(value) {
+	return typeof value === 'string' ? value.replace(/-/g, '').trim().toLowerCase() : '';
+}
+
+function loadCacheFile() {
+	if (!existsSync(CACHE_PATH)) {
+		return { users: {} };
+	}
+
+	try {
+		const parsed = JSON.parse(readFileSync(CACHE_PATH, 'utf8'));
+		return parsed && typeof parsed === 'object' ? parsed : { users: {} };
+	} catch {
+		return { users: {} };
+	}
+}
+
+function saveCacheFile(cache) {
+	ensureCacheDir();
+	writeFileSync(CACHE_PATH, JSON.stringify(cache, null, 2));
+}
+
+export function readCachedEmbyUserContext(embyGuid) {
+	const normalizedGuid = normalizeGuid(embyGuid);
+	if (!normalizedGuid) return null;
+
+	const cache = loadCacheFile();
+	return cache.users?.[normalizedGuid] || null;
+}
+
+export function writeCachedEmbyUserContext(embyGuid, context) {
+	const normalizedGuid = normalizeGuid(embyGuid);
+	if (!normalizedGuid) return null;
+
+	const cache = loadCacheFile();
+	const nextContext = {
+		views: Array.isArray(context?.views) ? context.views : [],
+		recentlyPlayed: Array.isArray(context?.recentlyPlayed) ? context.recentlyPlayed : [],
+		excludedFolderLookup: context?.excludedFolderLookup || {},
+		lastSyncedAt: context?.lastSyncedAt || new Date().toISOString()
+	};
+
+	cache.users ||= {};
+	cache.users[normalizedGuid] = nextContext;
+	saveCacheFile(cache);
+	return nextContext;
+}
+