fix(SW-236): properly handle expired token in webviews

Trying out a new pattern for errors in data fetching.

Next.js is not a fan of throwing errors. Instead it recommends returning
different shapes for each state. Ref:
https://nextjs.org/docs/app/building-your-application/routing/error-handling#handling-expected-errors-from-server-components

It requires some more detailing and a bit more refactoring in non webview part,
but it is a start. This webview specific implementation should not break web.

server/routers/user/query.ts

@@ -31,6 +31,12 @@ import type {
 } from "@/types/components/tracking"
 
 async function getVerifiedUser({ session }: { session: Session }) {
+  const now = Date.now()
+
+  if (session.token.expires_at < now) {
+    return { error: true, cause: "token_expired" } as const
+  }
+
   const apiResponse = await api.get(api.endpoints.v1.profile, {
     cache: "no-store",
     headers: {
@@ -39,6 +45,11 @@ async function getVerifiedUser({ session }: { session: Session }) {
   })
 
   if (!apiResponse.ok) {
+    if (apiResponse.status === 401) {
+      return { error: true, cause: "unauthorized" } as const
+    } else if (apiResponse.status === 403) {
+      return { error: true, cause: "forbidden" } as const
+    }
     return null
   }
 
@@ -141,12 +152,18 @@ export const userQueryRouter = router({
   get: protectedProcedure
     .input(getUserInputSchema)
     .query(async function getUser({ ctx, input }) {
-      const verifiedData = await getVerifiedUser({ session: ctx.session })
+      const data = await getVerifiedUser({ session: ctx.session })
 
-      if (!verifiedData) {
+      if (!data) {
         return null
       }
 
+      if ("error" in data) {
+        return data
+      }
+
+      const verifiedData = data
+
       const country = countries.find(
         (c) => c.code === verifiedData.data.address.countryCode
       )
@@ -199,7 +216,7 @@ export const userQueryRouter = router({
     }
     const verifiedData = await getVerifiedUser({ session: ctx.session })
 
-    if (!verifiedData) {
+    if (!verifiedData || "error" in verifiedData) {
       return null
     }
     return {
@@ -213,7 +230,7 @@ export const userQueryRouter = router({
     }
     const verifiedData = await getVerifiedUser({ session: ctx.session })
 
-    if (!verifiedData) {
+    if (!verifiedData || "error" in verifiedData) {
       return null
     }
 
@@ -230,7 +247,7 @@ export const userQueryRouter = router({
     }
     const verifiedUserData = await getVerifiedUser({ session: ctx.session })
 
-    if (!verifiedUserData) {
+    if (!verifiedUserData || "error" in verifiedUserData) {
       return notLoggedInUserTrackingData
     }