Refactor: continues to rewrite to TS

Build/lib/cache-apply.ts

@@ -0,0 +1,31 @@
+export const createCache = (namespace?: string, printStats = false) => {
+  const cache = new Map();
+
+  let hit = 0;
+  if (namespace && printStats) {
+    process.on('exit', () => {
+      console.log(`🔋 [cache] ${namespace} hit: ${hit}, size: ${cache.size}`);
+    });
+  }
+
+  return {
+    sync<T>(key: string, fn: () => T): T {
+      if (cache.has(key)) {
+        hit++;
+        return cache.get(key);
+      }
+      const value = fn();
+      cache.set(key, value);
+      return value;
+    },
+    async async<T>(key: string, fn: () => Promise<T>): Promise<T> {
+      if (cache.has(key)) {
+        hit++;
+        return cache.get(key);
+      }
+      const value = await fn();
+      cache.set(key, value);
+      return value;
+    }
+  };
+};