shopping list delay fix and category change implemented

vue3/src/utils/logic_utils.ts

@@ -0,0 +1,23 @@
+import {ShoppingListEntry} from "@/openapi";
+import {IShoppingListFood} from "@/types/Shopping";
+
+/**
+ * determine if a shopping list entry is delayed
+ * @param entry
+ */
+export function isDelayed(entry: ShoppingListEntry){
+    // this function is needed because the openapi typescript fetch client always replaces null with undefined, so delayUntil cant be
+    // set back to null once it has been delayed once. This will hopefully be fixed at some point, until then un-delaying will set the date to 1997-1-1 00:00
+    return entry.delayUntil !== null && entry.delayUntil > Date.now()
+}
+
+/**
+ * determine if any entry in a given IShoppingListFood is delayed, if so return true
+ */
+export function isShoppingListFoodDelayed(slf: IShoppingListFood){
+    let hasDelayedEntry = false
+    slf.entries.forEach(sle => {
+        hasDelayedEntry = hasDelayedEntry || isDelayed(sle)
+    })
+    return hasDelayedEntry
+}