move other resolvers into their own files

src/resolvers/RouteResolvers.ts

@@ -0,0 +1,36 @@
+import { Coordinates, Resolvers } from "../generated/graphql";
+import { ServerContext } from "../ServerContext";
+
+export const RouteResolvers: Resolvers<ServerContext> = {
+  Route: {
+    shuttles: async (parent, args, contextValue, info) => {
+      const shuttles = await contextValue.repository.getShuttlesByRouteId(parent.id);
+
+      return shuttles.map(({
+                             coordinates,
+                             name,
+                             id,
+                           }) => ({
+        coordinates: coordinates as Coordinates,
+        name,
+        route: parent,
+        routeId: parent.id,
+        id,
+      }));
+    },
+    orderedStop: async (parent, args, contextValue, info) => {
+      if (!args.forStopId) return null;
+      const orderedStop = await contextValue.repository.getOrderedStopByRouteAndStopId(parent.id, args.forStopId);
+      if (!orderedStop) return null;
+
+      const stop = await contextValue.repository.getStopById(orderedStop.stopId);
+      if (!stop) return null;
+
+      return {
+        stopId: args.forStopId,
+        routeId: parent.id,
+        route: parent,
+      }
+    },
+  },
+}