chore: cleanup

src/lib/assets.ts

@@ -1,3 +1,4 @@
+import { readdirSync } from "node:fs";
 import { mkdir, readdir } from "node:fs/promises";
 import { join } from "node:path";
 import { file, hash, write } from "bun";
@@ -11,6 +12,7 @@ export class AssetManager {
   private cache = new Map<string, ArrayBuffer>();
   private deduper = new Deduplicator<ArrayBuffer>();
   private MAX = 300;
+  private approximateSize = 0;
 
   async getMissingAssets() {
     const avatars = await getEnkaAvatarStore();
@@ -112,16 +114,26 @@ export class AssetManager {
 
   // a simple LRU
   private touch(key: string, value: ArrayBuffer) {
+    if (!this.cache.has(key)) this.approximateSize += value.byteLength;
     // move to newest
     this.cache.delete(key);
     this.cache.set(key, value);
 
-    // purge oldest
     if (this.cache.size > this.MAX) {
-      const oldest = this.cache.keys().next().value;
-      this.cache.delete(oldest!);
+      // purge oldest
+      const oldest = this.cache.keys().next().value!;
+      this.approximateSize -= this.cache.get(oldest)?.byteLength ?? 0;
+      this.cache.delete(oldest);
     }
   }
+
+  get health() {
+    return {
+      lru: this.cache.size,
+      lruSize: `${(this.approximateSize / 1000).toFixed(2)}Kb`,
+      disk: readdirSync("store").length,
+    };
+  }
 }
 
 export async function getEnkaStores() {