feat(server/rss): public preview and paginated list by slug

Made-with: Cursor

server/api/public/profile/[publicSlug].get.ts

@@ -3,7 +3,7 @@ import { users } from "drizzle-pkg/lib/schema/auth";
 import { and, eq } from "drizzle-orm";
 import { getPublicPostsPreviewBySlug } from "#server/service/posts";
 import { getPublicTimelinePreviewBySlug } from "#server/service/timeline";
-import { listPublicRssItemsBySlug } from "#server/service/rss";
+import { getPublicRssPreviewBySlug } from "#server/service/rss";
 import { parseSocialLinksJson } from "#server/service/profile";
 
 export default defineEventHandler(async (event) => {
@@ -34,7 +34,7 @@ export default defineEventHandler(async (event) => {
     links: typeof links;
     posts: Awaited<ReturnType<typeof getPublicPostsPreviewBySlug>>;
     timeline: Awaited<ReturnType<typeof getPublicTimelinePreviewBySlug>>;
-    rssItems: Awaited<ReturnType<typeof listPublicRssItemsBySlug>>;
+    rssItems: Awaited<ReturnType<typeof getPublicRssPreviewBySlug>>;
   } = {
     user: {
       publicSlug: owner.publicSlug,
@@ -45,7 +45,7 @@ export default defineEventHandler(async (event) => {
     links,
     posts: await getPublicPostsPreviewBySlug(publicSlug),
     timeline: await getPublicTimelinePreviewBySlug(publicSlug),
-    rssItems: await listPublicRssItemsBySlug(publicSlug),
+    rssItems: await getPublicRssPreviewBySlug(publicSlug),
   };
 
   if (owner.bioVisibility === "public" && owner.bioMarkdown) {

server/service/rss/index.ts

@@ -1,7 +1,9 @@
 import { dbGlobal } from "drizzle-pkg/lib/db";
 import { rssFeeds, rssItems } from "drizzle-pkg/lib/schema/rss";
 import { users } from "drizzle-pkg/lib/schema/auth";
-import { and, desc, eq } from "drizzle-orm";
+import { PUBLIC_LIST_PAGE_SIZE, PUBLIC_PREVIEW_LIMIT } from "#server/constants/public-profile-lists";
+import { normalizePublicListPage } from "#server/utils/public-pagination";
+import { and, count, desc, eq } from "drizzle-orm";
 import { XMLParser } from "fast-xml-parser";
 import { assertSafeRssUrl } from "#server/utils/rss-url";
 import { RssUrlUnsafeError } from "#server/utils/rss-url";
@@ -76,21 +78,54 @@ export async function updateItemVisibility(userId: number, itemId: number, visib
   return row ?? null;
 }
 
-export async function listPublicRssItemsBySlug(publicSlug: string) {
+function publicRssListWhere(publicSlug: string) {
-  const rows = await dbGlobal
+  return and(
-    .select({ it: rssItems })
-    .from(rssItems)
-    .innerJoin(users, eq(rssItems.userId, users.id))
-    .where(
-      and(
     eq(users.publicSlug, publicSlug),
     eq(users.status, "active"),
     eq(rssItems.visibility, "public"),
-      ),
+  );
-    )
+}
+
+export async function getPublicRssPreviewBySlug(publicSlug: string) {
+  const whereClause = publicRssListWhere(publicSlug);
+  const [countRows, rows] = await Promise.all([
+    dbGlobal
+      .select({ total: count() })
+      .from(rssItems)
+      .innerJoin(users, eq(rssItems.userId, users.id))
+      .where(whereClause),
+    dbGlobal
+      .select({ it: rssItems })
+      .from(rssItems)
+      .innerJoin(users, eq(rssItems.userId, users.id))
+      .where(whereClause)
+      .orderBy(desc(rssItems.publishedAt), desc(rssItems.id))
+      .limit(PUBLIC_PREVIEW_LIMIT),
+  ]);
+  return { items: rows.map((r) => r.it), total: countRows[0]?.total ?? 0 };
+}
+
+export async function getPublicRssPageBySlug(publicSlug: string, pageRaw: unknown) {
+  const page = normalizePublicListPage(pageRaw);
+  const pageSize = PUBLIC_LIST_PAGE_SIZE;
+  const offset = (page - 1) * pageSize;
+  const whereClause = publicRssListWhere(publicSlug);
+  const [countRows, rows] = await Promise.all([
+    dbGlobal
+      .select({ total: count() })
+      .from(rssItems)
+      .innerJoin(users, eq(rssItems.userId, users.id))
+      .where(whereClause),
+    dbGlobal
+      .select({ it: rssItems })
+      .from(rssItems)
+      .innerJoin(users, eq(rssItems.userId, users.id))
+      .where(whereClause)
       .orderBy(desc(rssItems.publishedAt), desc(rssItems.id))
-    .limit(200);
+      .limit(pageSize)
-  return rows.map((r) => r.it);
+      .offset(offset),
+  ]);
+  return { items: rows.map((r) => r.it), total: countRows[0]?.total ?? 0, page, pageSize };
 }
 
 export async function getUnlistedRssItem(publicSlug: string, shareToken: string) {