refactor: replace qstash with Google Cloud Tasks

src/controllers/watch-status/index.ts

@@ -1,12 +1,10 @@
 import { OpenAPIHono, createRoute, z } from "@hono/zod-openapi";
-import { Client } from "@upstash/qstash";
 import { env } from "hono/adapter";
 
-import { deleteMessageIdForTitle } from "~/libs/deleteMessageIdForTitle";
 import { maybeScheduleNextAiringEpisode } from "~/libs/maybeScheduleNextAiringEpisode";
-import { verifyQstashHeader } from "~/libs/qstash/verifyQstashHeader";
-import { readEnvVariable } from "~/libs/readEnvVariable";
-import { deleteTitleMessage, getTitleMessage } from "~/models/titleMessages";
+import { buildNewEpisodeTaskId } from "~/libs/tasks/id";
+import { queueTask } from "~/libs/tasks/queueTask";
+import { removeTask } from "~/libs/tasks/removeTask";
 import { setWatchStatus } from "~/models/watchStatus";
 import type { Env } from "~/types/env";
 import {
@@ -75,13 +73,8 @@ app.openapi(route, async (c) => {
     isRetrying = false,
   } = await c.req.json<typeof UpdateWatchStatusRequest._type>();
   const aniListToken = c.req.header("X-AniList-Token");
-  const client = new Client({ token: readEnvVariable(c.env, "QSTASH_TOKEN") });
 
-  if (isRetrying) {
-    if (!(await verifyQstashHeader(env<Env, typeof c>(c, "workerd"), c.req))) {
-      return c.json(ErrorResponse, { status: 401 });
-    }
-  } else {
+  if (!isRetrying) {
     try {
       const { wasAdded, wasDeleted } = await setWatchStatus(
         env<Env, typeof c>(c, "workerd"),
@@ -96,9 +89,10 @@ app.openapi(route, async (c) => {
           titleId,
         );
       } else if (wasDeleted) {
-        await deleteMessageIdForTitle(
+        await removeTask(
           env<Env, typeof c>(c, "workerd"),
-          titleId,
+          "new-episode",
+          buildNewEpisodeTaskId(titleId),
         );
       }
     } catch (error) {
@@ -118,12 +112,21 @@ app.openapi(route, async (c) => {
     console.error(
       new Error("Failed to update watch status on Anilist", { cause: error }),
     );
-    client.publishJSON({
-      url: c.req.url,
-      body: { deviceId, watchStatus, titleId, isRetrying: true },
-      retries: 3,
-      delay: "1m",
-    });
+    if (isRetrying) {
+      return c.json(ErrorResponse, { status: 500 });
+    }
+
+    await queueTask(
+      env(c, "workerd"),
+      "anilist",
+      {
+        deviceId,
+        watchStatus,
+        titleId,
+        isRetrying: true,
+      },
+      { req: c.req, scheduleConfig: { delay: { minute: 1 } } },
+    );
   }
 
   return c.json(SuccessResponse, { status: 200 });