Track error status whwn mod list is partially loaded

src/store/modules/TsModsModule.ts

@@ -45,6 +45,7 @@ function isPackageListChunk(value: unknown): value is PackageListChunk {
 }
 
 const EXCLUSIONS = 'https://raw.githubusercontent.com/ebkr/r2modmanPlus/master/modExclusions.md';
+const PARTIAL_UPDATE_ERROR = 'Failed to fetch and cache some of the packages.';
 
 /**
  * For dealing with mods listed in communities, i.e. available through
@@ -124,6 +125,11 @@ export const TsModsModule = {
                 && (Date.now() - state.modsLastUpdated.getTime()) > (1000 * 60 * 60);
         },
 
+        /*** Is the error from only some of the package chunks failing to be fetched/cached? */
+        isStatusPartiallyFailed(state) {
+            return state.thunderstoreModListUpdateError?.message === PARTIAL_UPDATE_ERROR;
+        },
+
         /*** Return ThunderstoreMod representation of a ManifestV2 */
         tsMod: (_state, getters) => (mod: ExportMod|ManifestV2): ThunderstoreMod | undefined => {
             return getters.cachedMod(mod).tsMod;
@@ -283,6 +289,8 @@ export const TsModsModule = {
             // hash is updated in the API.
             if (successes === chunkCount) {
                 await dispatch('cacheIndexHash', packageListIndex.hash);
+            } else {
+                throw new Error('Failed to fetch and cache some of the packages.');
             }
 
             return successes === chunkCount;