async function readCache()

in src/lib/server/providers/index.ts [39:65]

• 27 lines of code
• 8 McCabe index (conditional complexity)

async function readCache(): Promise<MaxTokensCache> {
	if (memoryCache) {
		return memoryCache;
	}
	if (cacheReadPromise) {
		return cacheReadPromise;
	}
	cacheReadPromise = (async () => {
		try {
			const data = await fs.readFile(CACHE_FILE_PATH, "utf-8");
			memoryCache = JSON.parse(data) as MaxTokensCache;
			return memoryCache!;
		} catch (error: unknown) {
			if (typeof error === "object" && error !== null && "code" in error && error.code === "ENOENT") {
				console.warn(`Cache file not found at ${CACHE_FILE_PATH}, starting with empty cache.`);
				memoryCache = {};
				return {};
			}
			console.error("Error reading context length cache file:", error);
			memoryCache = {};
			return {};
		} finally {
			cacheReadPromise = null;
		}
	})();
	return cacheReadPromise;
}