chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

server/utils/queue.ts

@@ -0,0 +1,45 @@
+import Queue from "bull";
+import Redis from "ioredis";
+import { snakeCase } from "lodash";
+import Metrics from "@server/logging/metrics";
+import { client, subscriber } from "../redis";
+
+export function createQueue(name: string) {
+  const prefix = `queue.${snakeCase(name)}`;
+  const queue = new Queue(name, {
+    createClient(type) {
+      switch (type) {
+        case "client":
+          return client;
+
+        case "subscriber":
+          return subscriber;
+
+        default:
+          return new Redis(process.env.REDIS_URL);
+      }
+    },
+
+    defaultJobOptions: {
+      removeOnComplete: true,
+      removeOnFail: true,
+    },
+  });
+  queue.on("stalled", () => {
+    Metrics.increment(`${prefix}.jobs.stalled`);
+  });
+  queue.on("completed", () => {
+    Metrics.increment(`${prefix}.jobs.completed`);
+  });
+  queue.on("error", () => {
+    Metrics.increment(`${prefix}.jobs.errored`);
+  });
+  queue.on("failed", () => {
+    Metrics.increment(`${prefix}.jobs.failed`);
+  });
+  setInterval(async () => {
+    Metrics.gauge(`${prefix}.count`, await queue.count());
+    Metrics.gauge(`${prefix}.delayed_count`, await queue.getDelayedCount());
+  }, 5 * 1000);
+  return queue;
+}