feat: add stats route

src/games/genshin/data/assets.ts

@@ -28,7 +28,7 @@ export class AssetManager {
   private MAX = 300;
   private approximateSize = 0;
 
-  private async getAssetList() {
+  async getAssetList(): Promise<string[]> {
     const [avatars, weapons, relics, pfps, namecards] = await batchStore(
       "avatars",
       "weapons",
@@ -50,7 +50,7 @@ export class AssetManager {
         (p) => p.IconPath /* .replace("_Circle", "") */,
       ),
       ...Object.values(namecards).map((p) => p.Icon),
-    ];
+    ].filter((e) => e !== "None");
   }
 
   async getMissingAssets() {

src/games/genshin/index.tsx

@@ -77,6 +77,26 @@ export function card(app: App) {
         .derive(() => ({
           log: createLogger(),
         }))
+        .get(
+          "/genshin/stats",
+          async ({ query: { with_assets } }) => {
+            return {
+              cache: assets.health,
+              assets:
+                with_assets === "" || with_assets === "true"
+                  ? await assets.getAssetList()
+                  : "Add ?with_assets to include this array. Refer to /docs for documentation",
+            };
+          },
+          {
+            query: t.Object({
+              with_assets: t.String({ default: "false" }),
+            }),
+            detail: {
+              description: "Return stats related to cache",
+            },
+          },
+        )
         .get("/genshin/diff", DiffPage)
         .get("/genshin/diff/ororo.png", () => file(DiffPageExample))
         .get("/genshin/diff/listoriginal.webp", () => file(ListDiffExample))