debug: expose Spotify token error details

src/pages/api/now-playing.ts

@@ -5,6 +5,15 @@ const client_id = import.meta.env.SPOTIFY_CLIENT_ID || process.env.SPOTIFY_CLIEN
 const client_secret = import.meta.env.SPOTIFY_CLIENT_SECRET || process.env.SPOTIFY_CLIENT_SECRET || '';
 const refresh_token = import.meta.env.SPOTIFY_REFRESH_TOKEN || process.env.SPOTIFY_REFRESH_TOKEN || '';
 
+console.log('Spotify Config Diagnostic:', {
+  clientIdPresent: !!client_id,
+  clientIdLength: client_id.length,
+  clientSecretPresent: !!client_secret,
+  clientSecretLength: client_secret.length,
+  refreshTokenPresent: !!refresh_token,
+  refreshTokenLength: refresh_token.length,
+});
+
 const basic = Buffer.from(`${client_id}:${client_secret}`).toString('base64');
 const NOW_PLAYING_ENDPOINT = `https://api.spotify.com/v1/me/player/currently-playing`;
 const TOKEN_ENDPOINT = `https://accounts.spotify.com/api/token`;
@@ -12,43 +21,56 @@ const TOKEN_ENDPOINT = `https://accounts.spotify.com/api/token`;
 // Helper to retrieve a fresh Spotify access token using the refresh token
 async function getAccessToken() {
   if (!client_id || !client_secret || !refresh_token) {
-    console.error('Spotify API keys are missing in env.');
-    return null;
+    throw new Error('Spotify API keys are missing in env.');
   }
 
-  try {
-    const response = await fetch(TOKEN_ENDPOINT, {
-      method: 'POST',
-      headers: {
-        Authorization: `Basic ${basic}`,
-        'Content-Type': 'application/x-www-form-urlencoded',
-      },
-      body: new URLSearchParams({
-        grant_type: 'refresh_token',
-        refresh_token,
-      }),
-    });
+  const response = await fetch(TOKEN_ENDPOINT, {
+    method: 'POST',
+    headers: {
+      Authorization: `Basic ${basic}`,
+      'Content-Type': 'application/x-www-form-urlencoded',
+    },
+    body: new URLSearchParams({
+      grant_type: 'refresh_token',
+      refresh_token,
+    }),
+  });
 
-    if (!response.ok) {
-      console.error('Failed to fetch Spotify access token:', response.statusText);
-      return null;
-    }
-
-    const data = await response.json();
-    return data.access_token;
-  } catch (error) {
-    console.error('Error fetching Spotify access token:', error);
-    return null;
+  if (!response.ok) {
+    const errText = await response.text();
+    throw new Error(`Spotify token error: ${response.status} - ${errText}`);
   }
+
+  const data = await response.json();
+  return data.access_token;
 }
 
 // Server-side GET API handler
 export const GET: APIRoute = async () => {
-  const token = await getAccessToken();
+  let token = null;
+  let tokenError = null;
+
+  try {
+    token = await getAccessToken();
+  } catch (error: any) {
+    tokenError = error.message || String(error);
+  }
 
   if (!token) {
     return new Response(
-      JSON.stringify({ isPlaying: false, message: 'Spotify integration not configured or credentials missing.' }),
+      JSON.stringify({
+        isPlaying: false,
+        message: 'Spotify integration not configured or credentials missing.',
+        debug: {
+          clientIdPresent: !!client_id,
+          clientIdLength: client_id.length,
+          clientSecretPresent: !!client_secret,
+          clientSecretLength: client_secret.length,
+          refreshTokenPresent: !!refresh_token,
+          refreshTokenLength: refresh_token.length,
+          tokenError
+        }
+      }),
       {
         status: 200,
         headers: {