# Persist DownloadedItem size when downloading or when reading file for the first time

utils/download.ts

@@ -5,9 +5,10 @@ import {apiAtom} from "@/providers/JellyfinProvider";
 import {useAtom} from "jotai";
 import {storage} from "@/utils/mmkv";
 import {getDownloadedFileUrl} from "@/hooks/useDownloadedFileOpener";
-import * as FileSystem from 'expo-file-system'
+import * as FileSystem from 'expo-file-system';
 import {FileInfo} from "expo-file-system";
 
+
 const useDownloadHelper = () => {
   const [api] = useAtom(apiAtom);
   const {saveImage} = useImageStorage();
@@ -18,7 +19,10 @@ const useDownloadHelper = () => {
     }
   }
 
-  const getDownloadSize = async (...items: BaseItemDto[]) => {
+  const getDownloadSize = async (
+    onNewItemSizeFetched: (item: BaseItemDto, size: number) => void,
+    ...items: BaseItemDto[]
+  ) => {
     const sizes: number[] = [];
 
     await Promise.all(items.map(item => {
@@ -26,18 +30,17 @@ const useDownloadHelper = () => {
         const url = await getDownloadedFileUrl(item.Id!);
         if (url) {
           const fileInfo: FileInfo = await FileSystem.getInfoAsync(url);
-          sizes.push(fileInfo.size);
-          resolve(sizes);
-        } else reject();
+          if (fileInfo.exists) {
+            onNewItemSizeFetched(item, fileInfo.size)
+            sizes.push(fileInfo.size);
+            resolve(sizes)
+          }
+        }
+        reject();
       })
     }));
 
-    const size = sizes.reduce((sum, size) => sum + size, 0);
-    const gb = size / 1e+9;
-
-    if (gb >= 1)
-      return `${gb.toFixed(2)} GB`;
-    return `${(size / 1024 / 1024).toFixed(2)} MB`;
+    return sizes.reduce((sum, size) => sum + size, 0);
   }
 
   return { saveSeriesPrimaryImage, getDownloadSize }