From ce2bc8f01be504f52eb2b70bb1682ca50266f2ef Mon Sep 17 00:00:00 2001
From: Oliwier Popielarczyk <71080644+olipop210@users.noreply.github.com>
Date: Mon, 4 May 2026 23:11:58 +0200
Subject: [PATCH 1/3] feat: get registration rounds action

add server action for fetching rounds for given registration
---
 src/actions/v2/get-registration-rounds.ts | 40 +++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 src/actions/v2/get-registration-rounds.ts

diff --git a/src/actions/v2/get-registration-rounds.ts b/src/actions/v2/get-registration-rounds.ts
new file mode 100644
index 0000000..e3d3743
--- /dev/null
+++ b/src/actions/v2/get-registration-rounds.ts
@@ -0,0 +1,40 @@
+import redis from "@/lib/redis";
+import { getOrSetRedis } from "@/lib/redis/get-set";
+import { fetchUsosApi } from "@/lib/usos";
+
+interface UsosRegistrationRound {
+  id: string;
+  name: {
+    pl: string;
+    en: string;
+  };
+  status: "active" | "preparing" | "closed";
+  registration_mode:
+    | "double_for_courses"
+    | "double_for_group_with_ask"
+    | "double_group_manual"
+    | "direct_for__courses_and_groups";
+  start_date: Date;
+  end_date: Date;
+}
+
+export async function getRegistrationRoundsAction(
+  registrationId: string,
+): Promise<UsosRegistrationRound[]> {
+  return getOrSetRedis({
+    redis,
+    key: `usos:registration_rounds:${registrationId}`,
+    ttlSeconds: 60,
+    fetcher: async () => {
+      const data = await fetchUsosApi<UsosRegistrationRound[]>(
+        `registrations/course_registration_rounds`,
+        {
+          registration_id: registrationId,
+          fields: "fields=id|name|status|registration_mode|start_date|end_date",
+        },
+      );
+
+      return data;
+    },
+  });
+}

From 867a182ac433805de6e0637726aa7e07e23dcf9c Mon Sep 17 00:00:00 2001
From: Oliwier Popielarczyk <71080644+olipop210@users.noreply.github.com>
Date: Mon, 4 May 2026 23:16:31 +0200
Subject: [PATCH 2/3] feat: registration rounds action

add sorting function
---
 src/actions/v2/get-registration-rounds.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/actions/v2/get-registration-rounds.ts b/src/actions/v2/get-registration-rounds.ts
index e3d3743..e7c94c9 100644
--- a/src/actions/v2/get-registration-rounds.ts
+++ b/src/actions/v2/get-registration-rounds.ts
@@ -18,6 +18,13 @@ interface UsosRegistrationRound {
   end_date: Date;
 }
 
+function sortByStartDateFn(
+  a: UsosRegistrationRound,
+  b: UsosRegistrationRound,
+): number {
+  return new Date(a.start_date).getTime() - new Date(b.start_date).getTime();
+}
+
 export async function getRegistrationRoundsAction(
   registrationId: string,
 ): Promise<UsosRegistrationRound[]> {
@@ -34,7 +41,7 @@ export async function getRegistrationRoundsAction(
         },
       );
 
-      return data;
+      return data.sort(sortByStartDateFn);
     },
   });
 }

From 7b2729f8f3c5f68017cda8c493fb5b33bea4a4ea Mon Sep 17 00:00:00 2001
From: Oliwier Popielarczyk <71080644+olipop210@users.noreply.github.com>
Date: Mon, 4 May 2026 23:28:05 +0200
Subject: [PATCH 3/3] refactor: lint

sort function naming
---
 src/actions/v2/get-registration-rounds.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/actions/v2/get-registration-rounds.ts b/src/actions/v2/get-registration-rounds.ts
index e7c94c9..dada6be 100644
--- a/src/actions/v2/get-registration-rounds.ts
+++ b/src/actions/v2/get-registration-rounds.ts
@@ -18,7 +18,7 @@ interface UsosRegistrationRound {
   end_date: Date;
 }
 
-function sortByStartDateFn(
+function sortByStartDateFunction(
   a: UsosRegistrationRound,
   b: UsosRegistrationRound,
 ): number {
@@ -41,7 +41,7 @@ export async function getRegistrationRoundsAction(
         },
       );
 
-      return data.sort(sortByStartDateFn);
+      return data.toSorted(sortByStartDateFunction);
     },
   });
 }