rearchive protection

pages/api/v1/links/[id]/archive/index.ts

@@ -4,6 +4,8 @@ import { authOptions } from "@/pages/api/v1/auth/[...nextauth]";
 import archive from "@/lib/api/archive";
 import { prisma } from "@/lib/api/db";
 
+const RE_ARCHIVE_LIMIT = Number(process.env.RE_ARCHIVE_LIMIT) || 5;
+
 export default async function links(req: NextApiRequest, res: NextApiResponse) {
   const session = await getServerSession(req, res, authOptions);
 
@@ -33,6 +35,20 @@ export default async function links(req: NextApiRequest, res: NextApiResponse) {
     });
 
   if (req.method === "PUT") {
+    if (
+      link?.lastPreserved &&
+      getTimezoneDifferenceInMinutes(new Date(), link?.lastPreserved) <
+        RE_ARCHIVE_LIMIT
+    )
+      return res.status(400).json({
+        response: `This link is currently being saved or has already been preserved. Please retry in ${
+          RE_ARCHIVE_LIMIT -
+          Math.floor(
+            getTimezoneDifferenceInMinutes(new Date(), link?.lastPreserved)
+          )
+        } minutes or create a new one.`,
+      });
+
     archive(link.id, link.url, session.user.id);
     return res.status(200).json({
       response: "Link is being archived.",
@@ -42,3 +58,14 @@ export default async function links(req: NextApiRequest, res: NextApiResponse) {
   // Later?
   // else if (req.method === "DELETE") {}
 }
+
+const getTimezoneDifferenceInMinutes = (future: Date, past: Date) => {
+  const date1 = new Date(future);
+  const date2 = new Date(past);
+
+  const diffInMilliseconds = Math.abs(date1.getTime() - date2.getTime());
+
+  const diffInMinutes = diffInMilliseconds / (1000 * 60);
+
+  return diffInMinutes;
+};