refactor: remove central validation export to improve typescript performance (#2810)

* refactor: remove central validation export to improve typescript performance

* fix: missing package exports change in validation package

* chore: address pull request feedback

packages/api/src/router/location.ts

@@ -1,16 +1,42 @@
-import type { z } from "zod";
+import { z } from "zod";
 
 import { fetchWithTimeout } from "@homarr/common";
-import { validation } from "@homarr/validation";
 
 import { createTRPCRouter, publicProcedure } from "../trpc";
 
+const citySchema = z.object({
+  id: z.number(),
+  name: z.string(),
+  country: z.string().optional(),
+  country_code: z.string().optional(),
+  latitude: z.number(),
+  longitude: z.number(),
+  population: z.number().optional(),
+});
+
+export const locationSearchCityInput = z.object({
+  query: z.string(),
+});
+
+export const locationSearchCityOutput = z
+  .object({
+    results: z.array(citySchema),
+  })
+  .or(
+    z
+      .object({
+        generationtime_ms: z.number(),
+      })
+      .refine((data) => Object.keys(data).length === 1, { message: "Invalid response" })
+      .transform(() => ({ results: [] })), // We fallback to empty array if no results
+  );
+
 export const locationRouter = createTRPCRouter({
   searchCity: publicProcedure
-    .input(validation.location.searchCity.input)
-    .output(validation.location.searchCity.output)
+    .input(locationSearchCityInput)
+    .output(locationSearchCityOutput)
     .query(async ({ input }) => {
       const res = await fetchWithTimeout(`https://geocoding-api.open-meteo.com/v1/search?name=${input.query}`);
-      return (await res.json()) as z.infer<typeof validation.location.searchCity.output>;
+      return (await res.json()) as z.infer<typeof locationSearchCityOutput>;
     }),
 });