fix: add load-more button and pagination to attachments page

web/src/pages/Attachments.tsx

@@ -8,6 +8,7 @@ import Empty from "@/components/Empty";
 import MobileHeader from "@/components/MobileHeader";
 import { Input } from "@/components/ui/input";
 import { Separator } from "@/components/ui/separator";
+import { Button } from "@/components/ui/button";
 import { attachmentServiceClient } from "@/grpcweb";
 import useLoading from "@/hooks/useLoading";
 import useResponsiveWidth from "@/hooks/useResponsiveWidth";
@@ -42,18 +43,51 @@ const Attachments = observer(() => {
     searchQuery: "",
   });
   const [attachments, setAttachments] = useState<Attachment[]>([]);
+  const [nextPageToken, setNextPageToken] = useState("");
+  const [isLoadingMore, setIsLoadingMore] = useState(false);
   const filteredAttachments = attachments.filter((attachment) => includes(attachment.filename, state.searchQuery));
   const groupedAttachments = groupAttachmentsByDate(filteredAttachments.filter((attachment) => attachment.memo));
   const unusedAttachments = filteredAttachments.filter((attachment) => !attachment.memo);
 
   useEffect(() => {
-    attachmentServiceClient.listAttachments({}).then(({ attachments }) => {
-      setAttachments(attachments);
-      loadingState.setFinish();
-      Promise.all(attachments.map((attachment) => (attachment.memo ? memoStore.getOrFetchMemoByName(attachment.memo) : null)));
+    const fetchInitialAttachments = async () => {
+      try {
+        const { attachments: fetchedAttachments, nextPageToken } = await attachmentServiceClient.listAttachments({
+          pageSize: 50,
         });
+        setAttachments(fetchedAttachments);
+        setNextPageToken(nextPageToken ?? "");
+        await Promise.all(
+          fetchedAttachments.map((attachment) => (attachment.memo ? memoStore.getOrFetchMemoByName(attachment.memo) : null)),
+        );
+      } finally {
+        loadingState.setFinish();
+      }
+    };
+
+    fetchInitialAttachments();
   }, []);
 
+  const handleLoadMore = async () => {
+    if (!nextPageToken) {
+      return;
+    }
+    setIsLoadingMore(true);
+    try {
+      const { attachments: fetchedAttachments, nextPageToken: newPageToken } = await attachmentServiceClient.listAttachments({
+        pageSize: 50,
+        pageToken: nextPageToken,
+      });
+      setAttachments((prevAttachments) => [...prevAttachments, ...fetchedAttachments]);
+      setNextPageToken(newPageToken ?? "");
+      await Promise.all(
+        fetchedAttachments.map((attachment) => (attachment.memo ? memoStore.getOrFetchMemoByName(attachment.memo) : null)),
+      );
+    } finally {
+      setIsLoadingMore(false);
+    }
+  };
+
   return (
     <section className="@container w-full max-w-5xl min-h-full flex flex-col justify-start items-center sm:pt-3 md:pt-6 pb-8">
       {!md && <MobileHeader />}
@@ -89,6 +123,7 @@ const Attachments = observer(() => {
                     <p className="mt-4 text-muted-foreground">{t("message.no-data")}</p>
                   </div>
                 ) : (
+                  <>
                     <div className={"w-full h-auto px-2 flex flex-col justify-start items-start gap-y-8"}>
                       {Array.from(groupedAttachments.entries()).map(([monthStr, attachments]) => {
                         return (
@@ -144,6 +179,14 @@ const Attachments = observer(() => {
                         </>
                       )}
                     </div>
+                    {nextPageToken && (
+                      <div className="w-full flex flex-row justify-center items-center mt-4">
+                        <Button variant="outline" size="sm" onClick={handleLoadMore} disabled={isLoadingMore}>
+                          {isLoadingMore ? t("resource.fetching-data") : t("memo.load-more")}
+                        </Button>
+                      </div>
+                    )}
+                  </>
                 )}
               </>
             )}