feat: schedule next airing episode

happens when new title is saved, or when new episode internal route is run successfully

src/controllers/internal/new-episode/index.ts

@@ -1,14 +1,15 @@
 import { zValidator } from "@hono/zod-validator";
-import { Hono } from "hono";
+import { Client } from "@upstash/qstash";
+import { Hono, type HonoRequest } from "hono";
 import { env } from "hono/adapter";
 import mapKeys from "lodash.mapkeys";
-import { DateTime } from "luxon";
 import { z } from "zod";
 
 import { Case, changeStringCase } from "~/libs/changeStringCase";
 import type { AdminSdkCredentials } from "~/libs/fcm/getGoogleAuthToken";
 import { sendFcmMessage } from "~/libs/fcm/sendFcmMessage";
 import { getCurrentDomain } from "~/libs/getCurrentDomain";
+import { maybeScheduleNextAiringEpisode } from "~/libs/maybeScheduleNextAiringEpisode";
 import { verifyQstashHeader } from "~/libs/qstash/verifyQstashHeader";
 import { readEnvVariable } from "~/libs/readEnvVariable";
 import { getTokensSubscribedToTitle } from "~/models/token";
@@ -48,6 +49,7 @@ app.post(
       `${domain}/episodes/${aniListId}`,
     ).then((res) => res.json<EpisodesResponseSchema>());
     if (!success) {
+      await scheduleRetry(readEnvVariable(c.env, "QSTASH_TOKEN"), c.req);
       return c.json(ErrorResponse, { status: 500 });
     }
 
@@ -56,6 +58,7 @@ app.post(
       (episode) => episode.number === episodeNumber,
     );
     if (!episode) {
+      await scheduleRetry(readEnvVariable(c.env, "QSTASH_TOKEN"), c.req);
       return c.json(ErrorResponse, { status: 404 });
     }
 
@@ -73,6 +76,7 @@ app.post(
       },
     ).then((res) => res.json<FetchUrlResponse>());
     if (!fetchUrlSuccess) {
+      await scheduleRetry(readEnvVariable(c.env, "QSTASH_TOKEN"), c.req);
       return c.json(ErrorResponse, { status: 500 });
     }
 
@@ -103,8 +107,23 @@ app.post(
       }),
     );
 
+    await maybeScheduleNextAiringEpisode(
+      env<Env, typeof c>(c, "workerd"),
+      c.req,
+      aniListId,
+    );
+
     return c.json(SuccessResponse, 200);
   },
 );
 
+async function scheduleRetry(qstashToken: string, req: HonoRequest) {
+  return new Client({ token: qstashToken }).publishJSON({
+    body: await req.text(),
+    url: req.url,
+    retries: 0,
+    delay: "1h",
+  });
+}
+
 export default app;