fix: retry loading user if 429 returned

src/libs/anilist/getNextEpisodeAiringAt.ts

@@ -1,6 +1,8 @@
 import { graphql } from "gql.tada";
 import { GraphQLClient } from "graphql-request";
 
+import { sleep } from "../sleep";
+
 const GetNextEpisodeAiringAtQuery = graphql(`
   query GetNextEpisodeAiringAt($id: Int!) {
     Media(id: $id) {
@@ -13,15 +15,39 @@ const GetNextEpisodeAiringAtQuery = graphql(`
   }
 `);
 
-export function getNextEpisodeTimeUntilAiring(aniListId: number) {
+type NextAiringTime = {
+  status:
+    | "FINISHED"
+    | "RELEASING"
+    | "NOT_YET_RELEASED"
+    | "CANCELLED"
+    | "HIATUS"
+    | null;
+  nextAiring: {
+    episode: number;
+    airingAt: number;
+  } | null;
+};
+
+export async function getNextEpisodeTimeUntilAiring(
+  aniListId: number,
+): Promise<NextAiringTime> {
   const client = new GraphQLClient("https://graphql.anilist.co/");
 
-  return client
-    .request(GetNextEpisodeAiringAtQuery, { id: aniListId })
-    .then((data) => {
-      const status = data!.Media!.status;
-      const nextAiring = data!.Media!.nextAiringEpisode;
+  try {
+    const { status, nextAiringEpisode: nextAiring } = await client
+      .request(GetNextEpisodeAiringAtQuery, {
+        id: aniListId,
+      })
+      .then((data) => data!.Media!);
 
-      return { status, nextAiring };
-    });
+    return { status, nextAiring };
+  } catch (error) {
+    if (error.response.status === 429) {
+      await sleep(Number(error.response.headers.get("Retry-After")!) * 1000);
+      return getNextEpisodeTimeUntilAiring(aniListId);
+    }
+
+    throw error;
+  }
 }