add register require invite

src/routes/auth/register.ts

@@ -1,5 +1,8 @@
 import { getSetting } from "@config/sql/settings";
 import { renderEjsTemplate } from "@helpers/ejs";
+import { type ReservedSQL, sql } from "bun";
+
+import { logger } from "@/helpers/logger";
 
 const routeDef: RouteDef = {
 	method: "GET",
@@ -10,15 +13,30 @@ const routeDef: RouteDef = {
 async function handler(request: ExtendedRequest): Promise<Response> {
 	if (request.session) return Response.redirect("/");
 
-	const instanceName: string =
+	const reservation: ReservedSQL = await sql.reserve();
-		(await getSetting("instance_name")) || "Unnamed Instance";
+	try {
+		const [firstUser] = await sql`SELECT COUNT(*) FROM users`;
 
-	const ejsTemplateData: EjsTemplateData = {
+		const instanceName: string =
-		title: `Register - ${instanceName}`,
+			(await getSetting("instance_name", reservation)) ||
-		instance_name: instanceName,
+			"Unnamed Instance";
-	};
+		const requiresInvite: boolean =
+			(await getSetting("enable_invitations", reservation)) === "true" &&
+			firstUser.count !== "0";
 
-	return await renderEjsTemplate("auth/register", ejsTemplateData);
+		const ejsTemplateData: EjsTemplateData = {
+			title: `Register - ${instanceName}`,
+			instance_name: instanceName,
+			requires_invite: requiresInvite,
+		};
+
+		return await renderEjsTemplate("auth/register", ejsTemplateData);
+	} catch (error) {
+		logger.error(["Error rendering register page", error as Error]);
+		return Response.redirect("/");
+	} finally {
+		reservation.release();
+	}
 }
 
 export { handler, routeDef };