feat: Tracearr integration (#5060)

packages/api/src/router/widgets/index.ts

@@ -26,4 +26,5 @@ export const widgetRouter = createTRPCRouter({
   networkController: lazy(() => import("./network-controller").then((mod) => mod.networkControllerRouter)),
   firewall: lazy(() => import("./firewall").then((mod) => mod.firewallRouter)),
   notifications: lazy(() => import("./notifications").then((mod) => mod.notificationsRouter)),
+  tracearr: lazy(() => import("./tracearr").then((mod) => mod.tracearrRouter)),
 });

packages/api/src/router/widgets/tracearr.ts

@@ -0,0 +1,48 @@
+import { observable } from "@trpc/server/observable";
+
+import type { TracearrDashboardData } from "@homarr/integrations/types";
+import { tracearrRequestHandler } from "@homarr/request-handler/tracearr";
+
+import { createManyIntegrationMiddleware } from "../../middlewares/integration";
+import { createTRPCRouter, publicProcedure } from "../../trpc";
+
+export const tracearrRouter = createTRPCRouter({
+  getDashboard: publicProcedure.concat(createManyIntegrationMiddleware("query", "tracearr")).query(async ({ ctx }) => {
+    const results = await Promise.all(
+      ctx.integrations.map(async (integration) => {
+        const innerHandler = tracearrRequestHandler.handler(integration, {});
+        const { data, timestamp } = await innerHandler.getCachedOrUpdatedDataAsync({ forceUpdate: false });
+
+        return {
+          integrationId: integration.id,
+          integrationName: integration.name,
+          integrationUrl: integration.url,
+          dashboard: data,
+          updatedAt: timestamp,
+        };
+      }),
+    );
+
+    return results;
+  }),
+  subscribeToDashboard: publicProcedure
+    .concat(createManyIntegrationMiddleware("query", "tracearr"))
+    .subscription(({ ctx }) => {
+      return observable<{ integrationId: string; dashboard: TracearrDashboardData; timestamp: Date }>((emit) => {
+        const unsubscribes = ctx.integrations.map((integration) => {
+          const innerHandler = tracearrRequestHandler.handler(integration, {});
+          return innerHandler.subscribe((dashboard) => {
+            emit.next({
+              integrationId: integration.id,
+              dashboard,
+              timestamp: new Date(),
+            });
+          });
+        });
+
+        return () => {
+          unsubscribes.forEach((unsubscribe) => unsubscribe());
+        };
+      });
+    }),
+});