💻 mocked rounds routes (#243)

* 💻 add rf/rounds

* 💻 add /rf/rounds/id route

* ✨ prettier

src/app/api/common/rounds/getRetroFundingRounds.ts

@@ -0,0 +1,29 @@
+import { cache } from "react";
+
+async function getRetroFundingRound(roundId: string) {
+  const defaultEvents = [
+    {
+      status: "PLANNED",
+      timestamp: "2024-01-01T00:00:00Z",
+    },
+    {
+      status: "SCHEDULED",
+      timestamp: "2024-02-01T00:00:00Z",
+    },
+    {
+      status: "DONE",
+      timestamp: "2024-03-01T00:00:00Z",
+    },
+  ];
+  const defaultround = {
+    roundId: 3,
+    name: "RetroPGF Round Three",
+    description: "The third retroactive funding round",
+    externalLink: "https://vote.optimism.io/retropgf/3/summary",
+    events: defaultEvents,
+  };
+
+  return defaultround;
+}
+
+export const fetchRetroFundingRounds = cache(getRetroFundingRound);

src/app/api/v1/retrofunding/rounds/[roundId]/route.ts

@@ -0,0 +1,13 @@
+import { NextResponse, type NextRequest } from "next/server";
+import { fetchRetroFundingRounds } from "@/app/api/common/rounds/getRetroFundingRounds";
+
+export async function GET(
+  request: NextRequest,
+  route: { params: { roundId: string } }
+) {
+  const { roundId } = route.params;
+  const round = await fetchRetroFundingRounds(roundId);
+  return new Response(JSON.stringify(round), {
+    status: 200,
+  });
+}