feat(integrations): add Coolify integration and widget (#4789)

Co-authored-by: Meier Lukas <meierschlumpf@gmail.com>

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

@@ -0,0 +1,50 @@
+import { observable } from "@trpc/server/observable";
+
+import type { CoolifyInstanceInfo } from "@homarr/integrations/types";
+import { coolifyRequestHandler } from "@homarr/request-handler/coolify";
+
+import { createManyIntegrationMiddleware } from "../../middlewares/integration";
+import { createTRPCRouter, publicProcedure } from "../../trpc";
+
+export const coolifyRouter = createTRPCRouter({
+  getInstancesInfo: publicProcedure
+    .concat(createManyIntegrationMiddleware("query", "coolify"))
+    .query(async ({ ctx }) => {
+      const results = await Promise.all(
+        ctx.integrations.map(async (integration) => {
+          const innerHandler = coolifyRequestHandler.handler(integration, {});
+          const { data, timestamp } = await innerHandler.getCachedOrUpdatedDataAsync({ forceUpdate: false });
+
+          return {
+            integrationId: integration.id,
+            integrationName: integration.name,
+            integrationUrl: integration.url,
+            instanceInfo: data,
+            updatedAt: timestamp,
+          };
+        }),
+      );
+
+      return results;
+    }),
+  subscribeInstancesInfo: publicProcedure
+    .concat(createManyIntegrationMiddleware("query", "coolify"))
+    .subscription(({ ctx }) => {
+      return observable<{ integrationId: string; instanceInfo: CoolifyInstanceInfo; timestamp: Date }>((emit) => {
+        const unsubscribes = ctx.integrations.map((integration) => {
+          const innerHandler = coolifyRequestHandler.handler(integration, {});
+          return innerHandler.subscribe((instanceInfo) => {
+            emit.next({
+              integrationId: integration.id,
+              instanceInfo,
+              timestamp: new Date(),
+            });
+          });
+        });
+
+        return () => {
+          unsubscribes.forEach((unsubscribe) => unsubscribe());
+        };
+      });
+    }),
+});

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

@@ -3,6 +3,7 @@ import { lazy } from "@trpc/server";
 import { createTRPCRouter } from "../../trpc";
 
 export const widgetRouter = createTRPCRouter({
+  coolify: lazy(() => import("./coolify").then((mod) => mod.coolifyRouter)),
   notebook: lazy(() => import("./notebook").then((mod) => mod.notebookRouter)),
   weather: lazy(() => import("./weather").then((mod) => mod.weatherRouter)),
   app: lazy(() => import("./app").then((mod) => mod.appRouter)),