i18n

src/app/routes/api/spotify/capture.ts

@@ -1,11 +1,15 @@
 import { createFileRoute } from "@tanstack/react-router";
+import { msg } from "@lingui/core/macro";
 import { SpotifyWebApiClient } from "@/lib/spotify/client";
 import type { SpotifyPlaybackSnapshot } from "@/lib/spotify/types";
+import { localizedFor } from "@/lib/i18n/server-messages";
 
 export const Route = createFileRoute("/api/spotify/capture")({
   server: {
     handlers: {
       POST: async ({ request }: { request: Request }) => {
+        // No session middleware on this route; localize with DEFAULT_LOCALE.
+        const i18n = localizedFor(null);
         try {
           const cookies = request.headers.get("Cookie") || "";
           const accessTokenMatch = cookies.match(
@@ -14,7 +18,7 @@ export const Route = createFileRoute("/api/spotify/capture")({
 
           if (!accessTokenMatch) {
             return new Response(
-              JSON.stringify({ error: "No access token found" }),
+              JSON.stringify({ error: i18n._(msg`No access token found`) }),
               {
                 status: 401,
                 headers: { "Content-Type": "application/json" },
@@ -29,7 +33,7 @@ export const Route = createFileRoute("/api/spotify/capture")({
 
           if (!snapshot) {
             return new Response(
-              JSON.stringify({ error: "No active playback to capture" }),
+              JSON.stringify({ error: i18n._(msg`No active playback to capture`) }),
               {
                 status: 400,
                 headers: { "Content-Type": "application/json" },
@@ -47,7 +51,7 @@ export const Route = createFileRoute("/api/spotify/capture")({
           const errorMessage =
             error instanceof Error
               ? error.message
-              : "Failed to capture playback state";
+              : i18n._(msg`Failed to capture playback state`);
 
           return new Response(JSON.stringify({ error: errorMessage }), {
             status: 500,

src/app/routes/api/spotify/playback.ts

@@ -1,5 +1,7 @@
 import { createFileRoute } from "@tanstack/react-router";
+import { msg } from "@lingui/core/macro";
 import { SpotifyWebApiClient } from "@/lib/spotify/client";
+import { localizedFor } from "@/lib/i18n/server-messages";
 
 function getAccessTokenFromCookies(request: Request): string | null {
   const cookieHeader = request.headers.get("cookie");
@@ -16,11 +18,13 @@ export const Route = createFileRoute("/api/spotify/playback")({
   server: {
     handlers: {
       POST: async ({ request }: { request: Request }) => {
+        // No session middleware on this route; localize with DEFAULT_LOCALE.
+        const i18n = localizedFor(null);
         try {
           const accessToken = getAccessTokenFromCookies(request);
           if (!accessToken) {
             return new Response(
-              JSON.stringify({ error: "No access token found" }),
+              JSON.stringify({ error: i18n._(msg`No access token found`) }),
               {
                 status: 401,
                 headers: { "Content-Type": "application/json" },
@@ -41,7 +45,7 @@ export const Route = createFileRoute("/api/spotify/playback")({
               if (!trackId) {
                 return new Response(
                   JSON.stringify({
-                    error: "trackId is required for playTrack action",
+                    error: i18n._(msg`trackId is required for playTrack action`),
                   }),
                   {
                     status: 400,
@@ -63,7 +67,7 @@ export const Route = createFileRoute("/api/spotify/playback")({
             case "volume":
               if (typeof volumePercent !== "number") {
                 return new Response(
-                  JSON.stringify({ error: "volumePercent must be a number" }),
+                  JSON.stringify({ error: i18n._(msg`volumePercent must be a number`) }),
                   {
                     status: 400,
                     headers: { "Content-Type": "application/json" },
@@ -76,7 +80,7 @@ export const Route = createFileRoute("/api/spotify/playback")({
               if (!deviceId) {
                 return new Response(
                   JSON.stringify({
-                    error: "deviceId is required for transfer action",
+                    error: i18n._(msg`deviceId is required for transfer action`),
                   }),
                   {
                     status: 400,
@@ -87,10 +91,13 @@ export const Route = createFileRoute("/api/spotify/playback")({
               await spotifyClient.transferPlayback(deviceId);
               break;
             default:
-              return new Response(JSON.stringify({ error: "Invalid action" }), {
-                status: 400,
-                headers: { "Content-Type": "application/json" },
-              });
+              return new Response(
+                JSON.stringify({ error: i18n._(msg`Invalid action`) }),
+                {
+                  status: 400,
+                  headers: { "Content-Type": "application/json" },
+                }
+              );
           }
 
           return new Response(JSON.stringify({ success: true }), {
@@ -104,8 +111,9 @@ export const Route = createFileRoute("/api/spotify/playback")({
             if (error.message.includes("NO_ACTIVE_DEVICE")) {
               return new Response(
                 JSON.stringify({
-                  error:
-                    "No active device found. Please select a device first.",
+                  error: i18n._(
+                    msg`No active device found. Please select a device first.`
+                  ),
                 }),
                 {
                   status: 400,
@@ -117,7 +125,9 @@ export const Route = createFileRoute("/api/spotify/playback")({
             if (error.message.includes("PREMIUM_REQUIRED")) {
               return new Response(
                 JSON.stringify({
-                  error: "Spotify Premium is required for playback control.",
+                  error: i18n._(
+                    msg`Spotify Premium is required for playback control.`
+                  ),
                 }),
                 {
                   status: 403,
@@ -135,7 +145,7 @@ export const Route = createFileRoute("/api/spotify/playback")({
 
           return new Response(
             JSON.stringify({
-              error: "Playback control failed",
+              error: i18n._(msg`Playback control failed`),
               details: error instanceof Error ? error.message : "Unknown error",
             }),
             {
@@ -147,11 +157,13 @@ export const Route = createFileRoute("/api/spotify/playback")({
       },
 
       GET: async ({ request }: { request: Request }) => {
+        // No session middleware on this route; localize with DEFAULT_LOCALE.
+        const i18n = localizedFor(null);
         try {
           const accessToken = getAccessTokenFromCookies(request);
           if (!accessToken) {
             return new Response(
-              JSON.stringify({ error: "No access token found" }),
+              JSON.stringify({ error: i18n._(msg`No access token found`) }),
               {
                 status: 401,
                 headers: { "Content-Type": "application/json" },
@@ -190,7 +202,7 @@ export const Route = createFileRoute("/api/spotify/playback")({
         } catch (error) {
           console.error("Get playback data error:", error);
           return new Response(
-            JSON.stringify({ error: "Failed to get playback data" }),
+            JSON.stringify({ error: i18n._(msg`Failed to get playback data`) }),
             {
               status: 500,
               headers: { "Content-Type": "application/json" },

src/app/routes/api/spotify/resume.ts

@@ -1,11 +1,15 @@
 import { createFileRoute } from "@tanstack/react-router";
+import { msg } from "@lingui/core/macro";
 import { SpotifyWebApiClient } from "@/lib/spotify/client";
 import type { SpotifyPlaybackSnapshot } from "@/lib/spotify/types";
+import { localizedFor } from "@/lib/i18n/server-messages";
 
 export const Route = createFileRoute("/api/spotify/resume")({
   server: {
     handlers: {
       POST: async ({ request }: { request: Request }) => {
+        // No session middleware on this route; localize with DEFAULT_LOCALE.
+        const i18n = localizedFor(null);
         try {
           const cookies = request.headers.get("Cookie") || "";
           const accessTokenMatch = cookies.match(
@@ -14,7 +18,7 @@ export const Route = createFileRoute("/api/spotify/resume")({
 
           if (!accessTokenMatch) {
             return new Response(
-              JSON.stringify({ error: "No access token found" }),
+              JSON.stringify({ error: i18n._(msg`No access token found`) }),
               {
                 status: 401,
                 headers: { "Content-Type": "application/json" },
@@ -30,7 +34,7 @@ export const Route = createFileRoute("/api/spotify/resume")({
 
           if (!snapshot) {
             return new Response(
-              JSON.stringify({ error: "No snapshot provided" }),
+              JSON.stringify({ error: i18n._(msg`No snapshot provided`) }),
               {
                 status: 400,
                 headers: { "Content-Type": "application/json" },
@@ -47,14 +51,14 @@ export const Route = createFileRoute("/api/spotify/resume")({
         } catch (error) {
           console.error("Spotify resume error:", error);
 
-          let errorMessage = "Failed to resume playback state";
+          let errorMessage = i18n._(msg`Failed to resume playback state`);
 
           if (error instanceof Error) {
             if (
               error.message.includes("Premium") ||
               error.message.includes("403")
             ) {
-              errorMessage = "Spotify premium required";
+              errorMessage = i18n._(msg`Spotify premium required`);
             } else {
               errorMessage = error.message;
             }