Build Phase 2 judge vertical slice

apps/api/src/worker.ts

@@ -0,0 +1,33 @@
+import { Worker } from "bullmq"
+
+import { config } from "./config"
+import { judgeQueueName, type JudgeJobData } from "./judge/job"
+import { judgeSubmission } from "./judge/run"
+import { createBlockingRedis } from "./redis"
+
+const worker = new Worker<JudgeJobData>(
+  judgeQueueName,
+  async (job) => judgeSubmission(job.data),
+  {
+    connection: createBlockingRedis(),
+    concurrency: config.judgeConcurrency,
+  },
+)
+
+worker.on("ready", () => {
+  console.log(`Judge worker ready (concurrency=${config.judgeConcurrency})`)
+})
+worker.on("failed", (job, error) => {
+  console.error(`Judge job ${job?.id ?? "unknown"} failed`, error)
+})
+worker.on("error", (error) => {
+  console.error("Judge worker error", error)
+})
+
+async function shutdown() {
+  await worker.close()
+  process.exit(0)
+}
+
+process.on("SIGINT", shutdown)
+process.on("SIGTERM", shutdown)