Add scheduled invoice delivery

apps/worker/src/send-invoice.ts

@@ -0,0 +1,41 @@
+import type { BackgroundJob } from "../../web/src/server/jobs/queue";
+
+function requiredPayloadString(job: BackgroundJob, key: string): string {
+  const value = job.payload[key];
+  if (typeof value !== "string" || !value) {
+    throw new Error(`Invalid scheduled invoice job payload: ${key}`);
+  }
+  return value;
+}
+
+export async function sendScheduledInvoice(job: BackgroundJob) {
+  const appUrl =
+    process.env.APP_INTERNAL_URL?.replace(/\/$/, "") ?? "http://app:3000";
+  const secret = process.env.CRON_SECRET;
+  if (!secret)
+    throw new Error("CRON_SECRET is required for scheduled invoice delivery");
+
+  const response = await fetch(`${appUrl}/api/internal/jobs/send-invoice`, {
+    method: "POST",
+    headers: {
+      Authorization: `Bearer ${secret}`,
+      "Content-Type": "application/json",
+    },
+    body: JSON.stringify({
+      ...job.payload,
+      jobId: job.id,
+      idempotencyKey: job.idempotencyKey,
+      invoiceId: requiredPayloadString(job, "invoiceId"),
+      actorUserId: requiredPayloadString(job, "actorUserId"),
+    }),
+  });
+  const result = (await response.json().catch(() => ({}))) as {
+    error?: string;
+  };
+  if (!response.ok) {
+    throw new Error(
+      result.error ?? `Invoice delivery request failed (${response.status})`,
+    );
+  }
+  return result;
+}