Cleaned code; overwrite cache if newer results are found

src/application/utilities.ts

@@ -28,7 +28,7 @@ export function getDomain() {
   return window.location.hostname.split('.').slice(-2).join('.')
 }
 
-export async function downloadCache<T extends { id: string }>(endpoint: string, storage: BaseStorage<T>) {
+export async function downloadCache<T extends { id: string; updatedAt: Date }>(endpoint: string, storage: BaseStorage<T>) {
   const request = await fetch(`${config.server_endpoint}/cache/${endpoint}`)
   const response = (await request.json()) as HttpResponse<T[]>
 
@@ -38,7 +38,15 @@ export async function downloadCache<T extends { id: string }>(endpoint: string,
   }
 
   const items = response.data ?? []
+
   for (const item of items) {
-    await storage.add(item)
+    let overwrite = false
+    const existingItem = await storage.get(item.id)
+
+    if (!existingItem || item.updatedAt > existingItem.updatedAt) {
+      overwrite = true
+    }
+
+    await storage.add(item, overwrite)
   }
 }