fixes

src/app/api/reports/[id]/export/route.ts

@@ -5,7 +5,7 @@ export const runtime = "nodejs";
 import { getServerSession } from "next-auth/next";
 import { authOptions } from "@/lib/auth";
 import { prisma } from "@/lib/prisma";
-import { uploadToDrive, updateDriveFile, generateReportMarkdown } from "@/lib/google-drive";
+import { uploadToDrive, updateDriveFile, generateReportMarkdown, getGoogleAuth } from "@/lib/google-drive";
 
 export async function POST(
   req: Request,
@@ -18,13 +18,11 @@ export async function POST(
     return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
   }
 
-  // With database sessions (not JWT), the Google access token lives in the
-  // Account table — getToken() returns null in this strategy.
-  const account = await prisma.account.findFirst({
-    where: { userId: session.user.id, provider: "google" },
-  });
-
-  if (!account?.access_token) {
+  let auth;
+  try {
+    auth = await getGoogleAuth(session.user.id);
+  } catch (error) {
+    console.error("Failed to get Google Auth:", error);
     return NextResponse.json({ error: "Unauthorized or missing Google token" }, { status: 401 });
   }
 
@@ -50,10 +48,10 @@ export async function POST(
 
     if (report.driveFileId) {
       // Update the existing Drive file in place
-      driveFile = await updateDriveFile(account.access_token, report.driveFileId, markdown);
+      driveFile = await updateDriveFile(auth, report.driveFileId, markdown);
     } else {
       // First export — create a new Drive file and store its ID
-      driveFile = await uploadToDrive(account.access_token, fileName, markdown, folderSetting?.value);
+      driveFile = await uploadToDrive(auth, fileName, markdown, folderSetting?.value);
       await prisma.report.update({
         where: { id },
         data: { driveFileId: driveFile.id },

src/lib/google-drive.ts

@@ -1,10 +1,56 @@
 import { google } from 'googleapis';
 import { Readable } from 'stream';
+import { prisma } from './prisma';
 
-export async function uploadToDrive(accessToken: string, fileName: string, content: string, folderId?: string) {
-  const auth = new google.auth.OAuth2();
-  auth.setCredentials({ access_token: accessToken });
+export async function getGoogleAuth(userId: string) {
+  const account = await prisma.account.findFirst({
+    where: { userId, provider: 'google' },
+  });
 
+  if (!account) {
+    throw new Error('Google account not found');
+  }
+
+  const auth = new google.auth.OAuth2(
+    process.env.GOOGLE_CLIENT_ID,
+    process.env.GOOGLE_CLIENT_SECRET
+  );
+
+  auth.setCredentials({
+    access_token: account.access_token,
+    refresh_token: account.refresh_token,
+    expiry_date: account.expires_at ? account.expires_at * 1000 : null,
+  });
+
+  // Check if the token is expired or will expire in the next 1 minute
+  // NextAuth stores expires_at in seconds
+  const isExpired = account.expires_at ? (account.expires_at * 1000) < (Date.now() + 60000) : true;
+
+  if (isExpired && account.refresh_token) {
+    try {
+      const { credentials } = await auth.refreshAccessToken();
+      auth.setCredentials(credentials);
+
+      // Update database with new tokens
+      await prisma.account.update({
+        where: { id: account.id },
+        data: {
+          access_token: credentials.access_token,
+          refresh_token: credentials.refresh_token || account.refresh_token,
+          expires_at: credentials.expiry_date ? Math.floor(credentials.expiry_date / 1000) : null,
+        },
+      });
+      console.log('Successfully refreshed Google access token for user:', userId);
+    } catch (error) {
+      console.error('Error refreshing access token:', error);
+      // If refresh fails, we still return the auth object, but requests will fail with 401
+    }
+  }
+
+  return auth;
+}
+
+export async function uploadToDrive(auth: any, fileName: string, content: string, folderId?: string) {
   const drive = google.drive({ version: 'v3', auth });
 
   const fileMetadata: any = {
@@ -34,10 +80,7 @@ export async function uploadToDrive(accessToken: string, fileName: string, conte
   }
 }
 
-export async function updateDriveFile(accessToken: string, fileId: string, content: string) {
-  const auth = new google.auth.OAuth2();
-  auth.setCredentials({ access_token: accessToken });
-
+export async function updateDriveFile(auth: any, fileId: string, content: string) {
   const drive = google.drive({ version: 'v3', auth });
 
   const media = {