Move bulk of webhook logic to plugin (#4866)

* Move bulk of webhook logic to plugin

* Re-enable cleanup task

* cron tasks

plugins/webhooks/server/tasks/CleanupWebhookDeliveriesTask.test.ts

@@ -0,0 +1,33 @@
+import { subDays } from "date-fns";
+import { WebhookDelivery } from "@server/models";
+import { buildWebhookDelivery } from "@server/test/factories";
+import { setupTestDatabase } from "@server/test/support";
+import CleanupWebhookDeliveriesTask from "./CleanupWebhookDeliveriesTask";
+
+setupTestDatabase();
+
+const deliveryExists = async (delivery: WebhookDelivery) => {
+  const results = await WebhookDelivery.findOne({ where: { id: delivery.id } });
+  return !!results;
+};
+
+describe("CleanupWebookDeliveriesTask", () => {
+  it("should delete Webhook Deliveries older than 1 week", async () => {
+    const brandNewWebhookDelivery = await buildWebhookDelivery({
+      createdAt: new Date(),
+    });
+    const newishWebhookDelivery = await buildWebhookDelivery({
+      createdAt: subDays(new Date(), 5),
+    });
+    const oldWebhookDelivery = await buildWebhookDelivery({
+      createdAt: subDays(new Date(), 8),
+    });
+
+    const task = new CleanupWebhookDeliveriesTask();
+    await task.perform();
+
+    expect(await deliveryExists(brandNewWebhookDelivery)).toBe(true);
+    expect(await deliveryExists(newishWebhookDelivery)).toBe(true);
+    expect(await deliveryExists(oldWebhookDelivery)).toBe(false);
+  });
+});