Cool Thingy

others/scaler.mjs

@@ -1,36 +1,37 @@
-import { LRUCache } from 'lru-cache';
+import fs from "fs";
+import path from "path";
+import { LRUCache } from "lru-cache";
 
 let maxKeys = 10_000;
-let cache   = makeCache(maxKeys);
+let cache = makeCache(maxKeys);
 
 function makeCache(maxEntries) {
   return new LRUCache({
     maxSize: maxEntries,
-    ttl:    60_000,
+    ttl: 60_000,
-    allowStale:     false,
+    allowStale: false,
     updateAgeOnGet: false,
-    updateAgeOnHas: false,
+    updateAgeOnHas: false
   });
 }
 
 function scaleCache() {
   const { heapUsed, heapTotal } = process.memoryUsage();
   const freeHeapRatio = (heapTotal - heapUsed) / heapTotal;
-
+  const newMax = freeHeapRatio > 0.5 ? 20_000 : freeHeapRatio < 0.2 ? 5_000 : 10_000;
-  const newMax = freeHeapRatio > 0.5
-    ? 20_000
-    : freeHeapRatio < 0.2
-      ? 5_000
-      : 10_000;
-
   if (newMax !== maxKeys) {
     maxKeys = newMax;
     cache = makeCache(maxKeys);
-    console.log(`[SCALER] freeHeap ${( (heapTotal - heapUsed)/1e6 ).toFixed(1)}MB → maxKeys: ${maxKeys}`);
+    console.log(`[SCALER] freeHeap ${((heapTotal - heapUsed) / 1e6).toFixed(1)}MB → maxKeys: ${maxKeys}`);
   }
 }
 
 setInterval(scaleCache, 60_000);
 scaleCache();
 
-export { cache };
+const watchPath = path.join(process.cwd(), "public");
+fs.watch(watchPath, { recursive: true }, () => {
+  cache.clear();
+});
+
+export { cache };