Introduce new batch metadata update function

src/features/source/components/SourceLanguageSelect.tsx

@@ -34,7 +34,7 @@ import {
     SourceNameInfo,
 } from '@/features/source/Source.types.ts';
 import { Sources } from '@/features/source/services/Sources';
-import { getSourceMetadata, updateSourceMetadata } from '@/features/source/services/SourceMetadata.ts';
+import { batchUpdateSourceMetadata, getSourceMetadata } from '@/features/source/services/SourceMetadata.ts';
 import { requestManager } from '@/lib/requests/RequestManager.ts';
 import { ListCardAvatar } from '@/base/components/lists/cards/ListCardAvatar.tsx';
 import { makeToast } from '@/base/utils/Toast.ts';
@@ -113,10 +113,21 @@ export const SourceLanguageSelect = ({
     const handleOk = () => {
         setOpen(false);
 
-        Promise.all(
-            Object.entries(tmpSourceIdToEnabledState).map(([sourceId, enabled]) =>
-                updateSourceMetadata(sources.find((source) => source.id === sourceId)!, 'isEnabled', enabled),
-            ),
+        batchUpdateSourceMetadata(
+            Object.entries(tmpSourceIdToEnabledState)
+                .map(([sourceId, enabled]) => {
+                    const source = sources.find((sourceToEnable) => sourceToEnable.id === sourceId);
+
+                    if (!source) {
+                        return null;
+                    }
+
+                    return {
+                        sources: [source],
+                        entries: [{ metadataKey: 'isEnabled' as const, value: enabled }],
+                    };
+                })
+                .filter((entry) => entry !== null),
         ).catch((e) => makeToast(t`Failed to save changes`, 'error', getErrorMessage(e)));
         setTmpSourceIdToEnabledState({});
         setSelectedLanguages(toUniqueLanguageCodes(tmpSelectedLanguages));

src/features/source/services/SourceMetadata.ts

@@ -7,7 +7,10 @@
  */
 
 import { useEffect, useMemo } from 'react';
-import { requestSourceMetadataUpdate } from '@/features/metadata/services/MetadataUpdater.ts';
+import {
+    requestSourceMetadataUpdate,
+    requestBatchSourceMetadataUpdate,
+} from '@/features/metadata/services/MetadataUpdater.ts';
 import { defaultPromiseErrorHandler } from '@/lib/DefaultPromiseErrorHandler.ts';
 import { ISourceMetadata, SourceIdInfo, SourceMetadataKeys } from '@/features/source/Source.types.ts';
 import { convertFromGqlMeta } from '@/features/metadata/services/MetadataConverter.ts';
@@ -55,6 +58,27 @@ export const updateSourceMetadata = async <
         update: [[metadataKey, convertAppMetadataToGqlMetadata({ [metadataKey]: value })[metadataKey]]],
     });
 
+export const batchUpdateSourceMetadata = async <
+    MetadataKeys extends SourceMetadataKeys = SourceMetadataKeys,
+    MetadataKey extends MetadataKeys = MetadataKeys,
+>(
+    updates: Array<{
+        sources: (SourceIdInfo & GqlMetaHolder)[];
+        entries: Array<{ metadataKey: MetadataKey; value: ISourceMetadata[MetadataKey] }>;
+    }>,
+): Promise<void> =>
+    requestBatchSourceMetadataUpdate(
+        updates.map(({ sources, entries }) => ({
+            sources,
+            options: {
+                update: entries.map(({ metadataKey, value }) => [
+                    metadataKey,
+                    convertAppMetadataToGqlMetadata({ [metadataKey]: value })[metadataKey],
+                ]),
+            },
+        })),
+    );
+
 export const createUpdateSourceMetadata =
     <Settings extends SourceMetadataKeys>(
         source: SourceIdInfo & GqlMetaHolder,