added new api route + fixed dropdown

lib/api/controllers/links/linkId/getLinkById.ts

@@ -0,0 +1,48 @@
+import { prisma } from "@/lib/api/db";
+import { Collection, Link, UsersAndCollections } from "@prisma/client";
+import getPermission from "@/lib/api/getPermission";
+
+export default async function getLinkById(userId: number, linkId: number) {
+  if (!linkId)
+    return {
+      response: "Please choose a valid link.",
+      status: 401,
+    };
+
+  const collectionIsAccessible = (await getPermission({ userId, linkId })) as
+    | (Collection & {
+        members: UsersAndCollections[];
+      })
+    | null;
+
+  const memberHasAccess = collectionIsAccessible?.members.some(
+    (e: UsersAndCollections) => e.userId === userId && e.canUpdate
+  );
+
+  const isCollectionOwner = collectionIsAccessible?.ownerId === userId;
+
+  if (collectionIsAccessible?.ownerId !== userId && !memberHasAccess)
+    return {
+      response: "Collection is not accessible.",
+      status: 401,
+    };
+  else {
+    const updatedLink = await prisma.link.findUnique({
+      where: {
+        id: linkId,
+      },
+      include: {
+        tags: true,
+        collection: true,
+        pinnedBy: isCollectionOwner
+          ? {
+              where: { id: userId },
+              select: { id: true },
+            }
+          : undefined,
+      },
+    });
+
+    return { response: updatedLink, status: 200 };
+  }
+}

lib/api/controllers/links/linkId/updateLinkById.ts

@@ -4,7 +4,7 @@ import { Collection, Link, UsersAndCollections } from "@prisma/client";
 import getPermission from "@/lib/api/getPermission";
 import moveFile from "@/lib/api/storage/moveFile";
 
-export default async function updateLink(
+export default async function updateLinkById(
   userId: number,
   linkId: number,
   data: LinkIncludingShortenedCollectionAndTags