feat(monorepo): migrate to typescript monorepo

apps/mobile-legacy/src/hooks/use-flattened-items.ts

@@ -0,0 +1,26 @@
+import { useMemo } from "react";
+
+interface Page<T> {
+    items: T[];
+}
+
+interface PaginatedResult<T> {
+    pages?: Page<T>[];
+    items?: T[];
+}
+
+export const useFlattenedItems = <T>(data: PaginatedResult<T> | undefined | null): T[] => {
+    return useMemo((): T[] => {
+        if (!data) {
+            return [];
+        }
+
+        if (data.pages && Array.isArray(data.pages) && data.pages.length > 0) {
+            return data.pages.flatMap(page => page.items || []);
+        } else if (data.items && Array.isArray(data.items)) {
+            return data.items;
+        } else {
+            return [];
+        }
+    }, [data]);
+};