chore(deps): Update dependencies and refactor API routes for improved error handling

- Updated various dependencies in package.json and pnpm-lock.yaml, including '@clerk/nextjs' to version 6.7.1 and several others for better performance and security.
- Refactored API routes to use Promise.resolve for context parameters, enhancing reliability in asynchronous contexts.
- Improved error handling in the dashboard and studies components, ensuring better user experience during data fetching.
- Removed unused favicon.ico file to clean up the project structure.
- Enhanced the dashboard components to utilize a new utility function for API URL fetching, promoting code reusability.

package.json

@@ -16,7 +16,7 @@
     "test:email": "tsx src/scripts/test-email.ts"
   },
   "dependencies": {
-    "@clerk/nextjs": "^6.4.0",
+    "@clerk/nextjs": "^6.7.1",
     "@radix-ui/react-alert-dialog": "^1.1.2",
     "@radix-ui/react-avatar": "^1.1.1",
     "@radix-ui/react-dialog": "^1.1.2",
@@ -29,31 +29,32 @@
     "@types/nodemailer": "^6.4.17",
     "@vercel/analytics": "^1.4.1",
     "@vercel/postgres": "^0.10.0",
-    "class-variance-authority": "^0.7.0",
+    "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "date-fns": "^4.1.0",
-    "dotenv": "^16.4.5",
-    "drizzle-orm": "^0.36.3",
-    "lucide-react": "^0.454.0",
+    "dotenv": "^16.4.7",
+    "drizzle-orm": "^0.37.0",
+    "lucide-react": "^0.468.0",
     "next": "15.0.3",
     "ngrok": "5.0.0-beta.2",
     "nodemailer": "^6.9.16",
+    "punycode": "^2.3.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "svix": "^1.41.0",
-    "tailwind-merge": "^2.5.4",
+    "svix": "^1.42.0",
+    "tailwind-merge": "^2.5.5",
     "tailwindcss-animate": "^1.0.7"
   },
   "devDependencies": {
-    "@types/node": "^22.9.1",
-    "@types/react": "^18.3.12",
+    "@types/node": "^22.10.1",
+    "@types/react": "^18.3.13",
     "@types/react-dom": "^18.3.1",
-    "drizzle-kit": "^0.27.2",
-    "eslint": "^9.15.0",
-    "eslint-config-next": "15.0.2",
+    "drizzle-kit": "^0.29.1",
+    "eslint": "^9.16.0",
+    "eslint-config-next": "15.0.3",
     "postcss": "^8.4.49",
-    "tailwindcss": "^3.4.15",
+    "tailwindcss": "^3.4.16",
     "tsx": "^4.19.2",
-    "typescript": "^5.6.3"
+    "typescript": "^5.7.2"
   }
 }

src/app/api/studies/[id]/participants/route.ts

@@ -10,7 +10,7 @@ export async function GET(
   context: { params: { id: string } }
 ) {
   const { userId } = await auth();
-  const { id } = await context.params;
+  const { id } = await Promise.resolve(context.params);
   
   if (!userId) {
     return ApiError.Unauthorized();
@@ -52,7 +52,7 @@ export async function POST(
   context: { params: { id: string } }
 ) {
   const { userId } = await auth();
-  const { id } = await context.params;
+  const { id } = await Promise.resolve(context.params);
   
   if (!userId) {
     return ApiError.Unauthorized();
@@ -98,7 +98,7 @@ export async function DELETE(
   context: { params: { id: string } }
 ) {
   const { userId } = await auth();
-  const { id } = await context.params;
+  const { id } = await Promise.resolve(context.params);
   
   if (!userId) {
     return ApiError.Unauthorized();

src/app/api/studies/[id]/stats/route.ts

@@ -11,7 +11,7 @@ export async function GET(
   context: { params: { id: string } }
 ) {
   const { userId } = await auth();
-  const { id } = context.params;
+  const { id } = await Promise.resolve(context.params);
   
   if (!userId) {
     return ApiError.Unauthorized();

src/app/api/studies/[id]/users/[userId]/role/route.ts

@@ -9,7 +9,7 @@ export async function PUT(
   context: { params: { id: string; userId: string } }
 ) {
   try {
-    const { id, userId } = await context.params;
+    const { id, userId } = await Promise.resolve(context.params);
     const studyId = parseInt(id);
 
     if (isNaN(studyId)) {

src/app/api/studies/[id]/users/route.ts

@@ -9,7 +9,7 @@ export async function GET(
   context: { params: { id: string } }
 ) {
   try {
-    const { id } = await context.params;
+    const { id } = await Promise.resolve(context.params);
     const studyId = parseInt(id);
 
     if (isNaN(studyId)) {

src/app/dashboard/page.tsx

@@ -1,12 +1,13 @@
 'use client';
 
-import { useEffect, useState } from "react";
+import { useCallback, useEffect, useState } from "react";
 import { useRouter } from "next/navigation";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "~/components/ui/card";
 import { Button } from "~/components/ui/button";
 import { BookOpen, Settings2 } from "lucide-react";
 import { useToast } from "~/hooks/use-toast";
 import { Breadcrumb } from "~/components/breadcrumb";
+import { getApiUrl } from "~/lib/fetch-utils";
 
 interface DashboardStats {
   studyCount: number;
@@ -22,15 +23,11 @@ export default function Dashboard() {
   const router = useRouter();
   const { toast } = useToast();
 
-  useEffect(() => {
-    fetchDashboardStats();
-  }, []);
-
-  const fetchDashboardStats = async () => {
+  const fetchDashboardStats = useCallback(async () => {
     try {
-      const studiesRes = await fetch('/api/studies');
+      const studiesRes = await fetch(getApiUrl('/api/studies'));
       const studies = await studiesRes.json();
-      
+
       // For now, just show study count
       setStats({
         studyCount: studies.data.length,
@@ -46,7 +43,12 @@ export default function Dashboard() {
     } finally {
       setLoading(false);
     }
-  };
+  }, [toast]);
+
+  useEffect(() => {
+    fetchDashboardStats();
+  }, [fetchDashboardStats]);
+
 
   if (loading) {
     return (
@@ -59,7 +61,7 @@ export default function Dashboard() {
   return (
     <div className="space-y-6">
       <Breadcrumb />
-      
+
       <div>
         <h1 className="text-2xl font-bold">Dashboard</h1>
         <p className="text-muted-foreground">Overview of your research studies</p>

src/app/dashboard/participants/page.tsx

@@ -21,6 +21,7 @@ import {
   SelectValue
 } from "~/components/ui/select";
 import { usePermissions } from "~/hooks/usePermissions";
+import { getApiUrl } from "~/lib/fetch-utils";
 
 interface Study {
   id: number;
@@ -47,7 +48,7 @@ export default function Participants() {
 
   const fetchStudies = async () => {
     try {
-      const response = await fetch('/api/studies');
+      const response = await fetch(getApiUrl('/api/studies'));
       const data = await response.json();
       setStudies(data);
     } catch (error) {
@@ -60,7 +61,7 @@ export default function Participants() {
   const fetchParticipants = async (studyId: number) => {
     try {
       console.log(`Fetching participants for studyId: ${studyId}`);
-      const response = await fetch(`/api/participants?studyId=${studyId}`);
+      const response = await fetch(getApiUrl(`/api/participants?studyId=${studyId}`));
       
       if (!response.ok) {
         throw new Error(`HTTP error! status: ${response.status}`);
@@ -84,7 +85,7 @@ export default function Participants() {
     if (!selectedStudyId) return;
 
     try {
-      const response = await fetch(`/api/participants`, {
+      const response = await fetch(getApiUrl('/api/participants'), {
         method: 'POST',
         headers: {
           'Content-Type': 'application/json',
@@ -109,7 +110,7 @@ export default function Participants() {
 
   const deleteParticipant = async (id: number) => {
     try {
-      const response = await fetch(`/api/participants/${id}`, {
+      const response = await fetch(getApiUrl('/api/participants/${id}'), {
         method: 'DELETE',
       });
 

src/app/dashboard/studies/[id]/page.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useEffect, useState } from "react";
+import { useCallback, useEffect, useState } from "react";
 import { useParams } from "next/navigation";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "~/components/ui/card";
 import { Button } from "~/components/ui/button";
@@ -14,6 +14,7 @@ import {
 } from "lucide-react";
 import { useToast } from "~/hooks/use-toast";
 import Link from "next/link";
+import { getApiUrl } from "~/lib/fetch-utils";
 
 interface StudyStats {
   participantCount: number;
@@ -31,13 +32,9 @@ export default function StudyDashboard() {
   const { id } = useParams();
   const { toast } = useToast();
 
-  useEffect(() => {
-    fetchStudyStats();
-  }, [id]);
-
-  const fetchStudyStats = async () => {
+  const fetchStudyStats = useCallback(async () => {
     try {
-      const response = await fetch(`/api/studies/${id}/stats`);
+      const response = await fetch(getApiUrl(`/api/studies/${id}/stats`));
       if (!response.ok) throw new Error("Failed to fetch study statistics");
       const data = await response.json();
       setStats(data.data);
@@ -51,7 +48,11 @@ export default function StudyDashboard() {
     } finally {
       setLoading(false);
     }
-  };
+  }, [toast, id]);
+
+  useEffect(() => {
+    fetchStudyStats();
+  }, [fetchStudyStats]);
 
   if (loading) {
     return (

src/app/dashboard/studies/[id]/participants/new/page.tsx

@@ -12,6 +12,7 @@ import Link from "next/link";
 import { useActiveStudy } from "~/context/active-study";
 import { hasPermission } from "~/lib/permissions-client";
 import { PERMISSIONS } from "~/lib/permissions";
+import { getApiUrl } from "~/lib/fetch-utils";
 
 export default function NewParticipant() {
   const [name, setName] = useState("");
@@ -36,7 +37,7 @@ export default function NewParticipant() {
     setIsSubmitting(true);
 
     try {
-      const response = await fetch(`/api/studies/${id}/participants`, {
+      const response = await fetch(getApiUrl(`/api/studies/${id}/participants`), {
         method: "POST",
         headers: {
           "Content-Type": "application/json",

src/app/dashboard/studies/[id]/participants/page.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useEffect, useState } from "react";
+import { useCallback, useEffect, useState } from "react";
 import { useParams } from "next/navigation";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "~/components/ui/card";
 import { Button } from "~/components/ui/button";
@@ -29,7 +29,7 @@ import {
   TableHeader,
   TableRow,
 } from "~/components/ui/table";
-
+import { getApiUrl } from "~/lib/fetch-utils";
 interface Participant {
   id: number;
   name: string;
@@ -48,13 +48,9 @@ export default function ParticipantsList() {
   const canDeleteParticipant = activeStudy && hasPermission(activeStudy.permissions, PERMISSIONS.DELETE_PARTICIPANT);
   const canViewNames = activeStudy && hasPermission(activeStudy.permissions, PERMISSIONS.VIEW_PARTICIPANT_NAMES);
 
-  useEffect(() => {
-    fetchParticipants();
-  }, [id]);
-
-  const fetchParticipants = async () => {
+  const fetchParticipants = useCallback(async () => {
     try {
-      const response = await fetch(`/api/studies/${id}/participants`, {
+      const response = await fetch(getApiUrl(`/api/studies/${id}/participants`), {
         method: "GET",
         headers: {
           "Content-Type": "application/json",
@@ -74,11 +70,15 @@ export default function ParticipantsList() {
     } finally {
       setIsLoading(false);
     }
-  };
+  }, [toast, id]);
+
+  useEffect(() => {
+    fetchParticipants();
+  }, [fetchParticipants]);
 
   const handleDelete = async (participantId: number) => {
     try {
-      const response = await fetch(`/api/studies/${id}/participants`, {
+      const response = await fetch(getApiUrl(`/api/studies/${id}/participants`), {
         method: "DELETE",
         headers: {
           "Content-Type": "application/json",

src/app/dashboard/studies/[id]/settings/page.tsx

@@ -10,6 +10,7 @@ import { PERMISSIONS } from "~/lib/permissions-client";
 import { Button } from "~/components/ui/button";
 import { Settings2Icon, UsersIcon, UserIcon } from "lucide-react";
 import { cn } from "~/lib/utils";
+import { getApiUrl } from "~/lib/fetch-utils";
 
 interface Study {
   id: number;
@@ -29,7 +30,7 @@ export default function StudySettings() {
   useEffect(() => {
     const fetchStudy = async () => {
       try {
-        const response = await fetch(`/api/studies/${id}`);
+        const response = await fetch(getApiUrl(`/api/studies/${id}`));
         if (!response.ok) {
           if (response.status === 403) {
             router.push('/dashboard/studies');

src/app/dashboard/studies/new/page.tsx

@@ -13,7 +13,7 @@ import Link from "next/link";
 import { useActiveStudy } from "~/context/active-study";
 import { hasPermission } from "~/lib/permissions-client";
 import { PERMISSIONS } from "~/lib/permissions";
-
+import { getApiUrl } from "~/lib/fetch-utils";
 export default function NewStudy() {
   const [title, setTitle] = useState("");
   const [description, setDescription] = useState("");
@@ -27,7 +27,7 @@ export default function NewStudy() {
     setIsSubmitting(true);
 
     try {
-      const response = await fetch('/api/studies', {
+      const response = await fetch(getApiUrl('/api/studies'), {
         method: "POST",
         headers: {
           "Content-Type": "application/json",

src/app/dashboard/studies/page.tsx

@@ -21,6 +21,7 @@ import {
   AlertDialogFooter
 } from "~/components/ui/alert-dialog";
 import { ROLES } from "~/lib/roles";
+import { getApiUrl } from "~/lib/fetch-utils";
 
 interface Study {
   id: number;
@@ -50,7 +51,7 @@ export default function Studies() {
 
   const fetchStudies = async () => {
     try {
-      const response = await fetch("/api/studies");
+      const response = await fetch(getApiUrl("/api/studies"));
       if (!response.ok) throw new Error("Failed to fetch studies");
       const data = await response.json();
       setStudies(data.data || []);
@@ -67,7 +68,7 @@ export default function Studies() {
   const createStudy = async (e: React.FormEvent) => {
     e.preventDefault();
     try {
-      const response = await fetch("/api/studies", {
+      const response = await fetch(getApiUrl("/api/studies"), {
         method: "POST",
         headers: {
           "Content-Type": "application/json",
@@ -99,7 +100,7 @@ export default function Studies() {
 
   const deleteStudy = async (id: number) => {
     try {
-      const response = await fetch(`/api/studies/${id}`, {
+      const response = await fetch(getApiUrl(`/api/studies/${id}`), {
         method: "DELETE",
       });
 

src/components/sidebar.tsx

@@ -187,15 +187,19 @@ export function Sidebar() {
         <div className="border-t border-[hsl(var(--sidebar-separator))]">
           <div className="flex items-center justify-between pt-4">
             <div className="flex items-center space-x-4">
-              <UserButton />
-              <div>
-                <p className="text-sm font-medium text-[hsl(var(--sidebar-foreground))]">
-                  {user?.fullName ?? user?.username ?? 'User'}
-                </p>
-                <p className="text-xs text-[hsl(var(--sidebar-muted))]">
-                  {user?.primaryEmailAddress?.emailAddress ?? 'user@example.com'}
-                </p>
+              <div className="w-8 h-8">
+                <UserButton afterSignOutUrl="/" />
               </div>
+              {user && (
+                <div className="min-w-0">
+                  <p className="text-sm font-medium text-[hsl(var(--sidebar-foreground))] truncate">
+                    {user.fullName ?? user.username ?? 'User'}
+                  </p>
+                  <p className="text-xs text-[hsl(var(--sidebar-muted))] truncate">
+                    {user.primaryEmailAddress?.emailAddress ?? 'user@example.com'}
+                  </p>
+                </div>
+              )}
             </div>
           </div>
         </div>

src/components/studies/invitations-tab.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useEffect } from "react";
+import { useCallback, useEffect, useState } from "react";
 import { Button } from "~/components/ui/button";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "~/components/ui/card";
 import { useToast } from "~/hooks/use-toast";
@@ -28,11 +28,7 @@ export function InvitationsTab({ studyId, permissions }: InvitationsTabProps) {
   const hasPermission = (permission: string) => permissions.includes(permission);
   const canManageRoles = hasPermission(PERMISSIONS.MANAGE_ROLES);
 
-  useEffect(() => {
-    fetchInvitations();
-  }, [studyId]);
-
-  const fetchInvitations = async () => {
+  const fetchInvitations = useCallback(async () => {
     try {
       const response = await fetch(`/api/invitations?studyId=${studyId}`);
       if (!response.ok) throw new Error("Failed to fetch invitations");
@@ -48,7 +44,12 @@ export function InvitationsTab({ studyId, permissions }: InvitationsTabProps) {
     } finally {
       setIsLoading(false);
     }
-  };
+  }, [studyId, toast]);
+
+  useEffect(() => {
+    fetchInvitations();
+  }, [fetchInvitations]);
+
 
   const handleDeleteInvitation = async (invitationId: string) => {
     try {

src/components/studies/invite-user-dialog.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useEffect } from "react";
+import { useState, useEffect, useCallback } from "react";
 import { Button } from "~/components/ui/button";
 import {
   Dialog,
@@ -41,14 +41,7 @@ export function InviteUserDialog({ studyId, onInviteSent }: InviteUserDialogProp
   const [roles, setRoles] = useState<Role[]>([]);
   const { toast } = useToast();
 
-  // Fetch available roles when dialog opens
-  useEffect(() => {
-    if (isOpen) {
-      fetchRoles();
-    }
-  }, [isOpen]);
-
-  const fetchRoles = async () => {
+  const fetchRoles = useCallback(async () => {
     try {
       const response = await fetch("/api/roles");
       if (!response.ok) {
@@ -67,7 +60,12 @@ export function InviteUserDialog({ studyId, onInviteSent }: InviteUserDialogProp
         variant: "destructive",
       });
     }
-  };
+  }, [toast]);
+
+  // Fetch available roles when dialog opens
+  useEffect(() => {
+    fetchRoles();
+  }, [fetchRoles]);
 
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault();

src/components/studies/participants-tab.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useEffect } from "react";
+import { useCallback, useEffect, useState } from "react";
 import { PlusIcon, Trash2Icon } from "lucide-react";
 import { Button } from "~/components/ui/button";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "~/components/ui/card";
@@ -43,11 +43,7 @@ export function ParticipantsTab({ studyId, permissions }: ParticipantsTabProps)
   const canDeleteParticipant = hasPermission(PERMISSIONS.DELETE_PARTICIPANT);
   const canViewNames = hasPermission(PERMISSIONS.VIEW_PARTICIPANT_NAMES);
 
-  useEffect(() => {
-    fetchParticipants();
-  }, [studyId]);
-
-  const fetchParticipants = async () => {
+  const fetchParticipants = useCallback(async () => {
     try {
       const response = await fetch(`/api/studies/${studyId}/participants`);
       if (!response.ok) throw new Error("Failed to fetch participants");
@@ -63,7 +59,11 @@ export function ParticipantsTab({ studyId, permissions }: ParticipantsTabProps)
     } finally {
       setIsLoading(false);
     }
-  };
+  }, [toast, studyId]);
+
+  useEffect(() => {
+    fetchParticipants();
+  }, [fetchParticipants]);
 
   const createParticipant = async (e: React.FormEvent) => {
     e.preventDefault();

src/components/studies/settings-tab.tsx

@@ -72,7 +72,7 @@ export function SettingsTab({ study }: SettingsTabProps) {
       <Card>
         <CardContent className="py-8">
           <p className="text-center text-muted-foreground">
-            You don't have permission to edit this study.
+            You don&apos;t have permission to edit this study.
           </p>
         </CardContent>
       </Card>

src/components/studies/users-tab.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { useState, useEffect } from "react";
+import { useState, useEffect, useCallback } from "react";
 import { UserAvatar } from "~/components/user-avatar";
 import { Button } from "~/components/ui/button";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "~/components/ui/card";
@@ -38,8 +38,7 @@ import {
 interface User {
   id: string;
   email: string;
-  firstName: string | null;
-  lastName: string | null;
+  name: string | null;
   roles: Array<{ id: number; name: string }>;
 }
 
@@ -72,23 +71,7 @@ export function UsersTab({ studyId, permissions }: UsersTabProps) {
   const hasPermission = (permission: string) => permissions.includes(permission);
   const canManageRoles = hasPermission(PERMISSIONS.MANAGE_ROLES);
 
-  useEffect(() => {
-    fetchData();
-  }, [studyId]);
-
-  const fetchData = async () => {
-    try {
-      await Promise.all([
-        fetchUsers(),
-        fetchInvitations(),
-        fetchRoles(),
-      ]);
-    } finally {
-      setIsLoading(false);
-    }
-  };
-
-  const fetchUsers = async () => {
+  const fetchUsers = useCallback(async () => {
     try {
       const response = await fetch(`/api/studies/${studyId}/users`);
       if (!response.ok) throw new Error("Failed to fetch users");
@@ -102,9 +85,9 @@ export function UsersTab({ studyId, permissions }: UsersTabProps) {
         variant: "destructive",
       });
     }
-  };
+  }, [studyId, toast]);
 
-  const fetchInvitations = async () => {
+  const fetchInvitations = useCallback(async () => {
     try {
       const response = await fetch(`/api/invitations?studyId=${studyId}`);
       if (!response.ok) throw new Error("Failed to fetch invitations");
@@ -118,9 +101,9 @@ export function UsersTab({ studyId, permissions }: UsersTabProps) {
         variant: "destructive",
       });
     }
-  };
+  }, [studyId, toast]);
 
-  const fetchRoles = async () => {
+  const fetchRoles = useCallback(async () => {
     try {
       const response = await fetch("/api/roles");
       if (!response.ok) throw new Error("Failed to fetch roles");
@@ -136,7 +119,24 @@ export function UsersTab({ studyId, permissions }: UsersTabProps) {
         variant: "destructive",
       });
     }
-  };
+  }, [toast]);
+
+  const fetchData = useCallback(async () => {
+    setIsLoading(true);
+    try {
+      await Promise.all([
+        fetchUsers(),
+        fetchInvitations(),
+        fetchRoles(),
+      ]);
+    } finally {
+      setIsLoading(false);
+    }
+  }, [fetchUsers, fetchInvitations, fetchRoles]);
+
+  useEffect(() => {
+    fetchData();
+  }, [fetchData]);
 
   const handleRoleChange = async (userId: string, newRoleId: string) => {
     try {

src/context/active-study.tsx

@@ -1,7 +1,7 @@
 'use client';
 
-import { createContext, useContext, useEffect, useState } from 'react';
-import { useRouter, usePathname } from 'next/navigation';
+import { createContext, useContext, useEffect, useState, useCallback } from 'react';
+import { usePathname, useRouter } from 'next/navigation';
 
 interface Study {
   id: number;
@@ -30,10 +30,10 @@ export function ActiveStudyProvider({ children }: { children: React.ReactNode })
   const [studies, setStudies] = useState<Study[]>([]);
   const [isLoading, setIsLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
-  const router = useRouter();
   const pathname = usePathname();
+  const router = useRouter();
 
-  const fetchStudies = async () => {
+  const fetchStudies = useCallback(async () => {
     try {
       const response = await fetch('/api/studies', {
         method: 'GET',
@@ -55,6 +55,7 @@ export function ActiveStudyProvider({ children }: { children: React.ReactNode })
       
       if (studiesWithDates.length === 1 && !activeStudy) {
         setActiveStudy(studiesWithDates[0]);
+        router.push(`/dashboard/studies/${studiesWithDates[0].id}`);
       }
     } catch (error) {
       console.error('Error fetching studies:', error);
@@ -62,11 +63,11 @@ export function ActiveStudyProvider({ children }: { children: React.ReactNode })
     } finally {
       setIsLoading(false);
     }
-  };
+  }, [router]);
 
   useEffect(() => {
     fetchStudies();
-  }, []);
+  }, [fetchStudies]);
 
   useEffect(() => {
     const studyIdMatch = pathname.match(/\/dashboard\/studies\/(\d+)/);
@@ -77,7 +78,9 @@ export function ActiveStudyProvider({ children }: { children: React.ReactNode })
         setActiveStudy(study);
       }
     } else if (!pathname.includes('/studies/new')) {
-      setActiveStudy(null);
+      if (activeStudy) {
+        setActiveStudy(null);
+      }
     }
   }, [pathname, studies]);
 

src/db/seed.ts

@@ -3,7 +3,14 @@ import { eq } from "drizzle-orm";
 import { db } from "./index";
 import { PERMISSIONS } from "~/lib/permissions";
 import { ROLES, ROLE_PERMISSIONS } from "~/lib/roles";
-import { permissionsTable, rolesTable, rolePermissionsTable, userRolesTable, usersTable, studyTable } from "./schema";
+import {
+  permissionsTable,
+  rolesTable,
+  rolePermissionsTable,
+  userRolesTable,
+  usersTable,
+  studyTable,
+} from "~/db/schema";
 
 // Load environment variables from .env.local
 config({ path: ".env.local" });
@@ -14,7 +21,8 @@ async function seed() {
   // Insert roles
   console.log("Inserting roles...");
   for (const [roleKey, roleName] of Object.entries(ROLES)) {
-    await db.insert(rolesTable)
+    await db
+      .insert(rolesTable)
       .values({
         name: roleName,
         description: getRoleDescription(roleKey),
@@ -25,7 +33,8 @@ async function seed() {
   // Insert permissions
   console.log("Inserting permissions...");
   for (const [permKey, permCode] of Object.entries(PERMISSIONS)) {
-    await db.insert(permissionsTable)
+    await db
+      .insert(permissionsTable)
       .values({
         name: formatPermissionName(permKey),
         code: permCode,
@@ -41,14 +50,19 @@ async function seed() {
   // Insert role permissions
   console.log("Inserting role permissions...");
   for (const [roleKey, permissionCodes] of Object.entries(ROLE_PERMISSIONS)) {
-    const role = roles.find(r => r.name === ROLES[roleKey as keyof typeof ROLES]);
+    const role = roles.find(
+      (r) => r.name === ROLES[roleKey as keyof typeof ROLES]
+    );
     if (!role) continue;
 
     for (const permissionCode of permissionCodes) {
-      const permission = permissions.find(p => p.code === PERMISSIONS[permissionCode]);
+      const permission = permissions.find(
+        (p) => p.code === PERMISSIONS[permissionCode]
+      );
       if (!permission) continue;
 
-      await db.insert(rolePermissionsTable)
+      await db
+        .insert(rolePermissionsTable)
         .values({
           roleId: role.id,
           permissionId: permission.id,
@@ -61,7 +75,7 @@ async function seed() {
   console.log("Setting up initial user roles...");
   const users = await db.select().from(usersTable);
   if (users.length > 0) {
-    const piRole = roles.find(r => r.name === ROLES.PRINCIPAL_INVESTIGATOR);
+    const piRole = roles.find((r) => r.name === ROLES.PRINCIPAL_INVESTIGATOR);
     if (piRole) {
       // Get all studies owned by the first user
       const userStudies = await db
@@ -71,7 +85,8 @@ async function seed() {
 
       // Assign PI role for each study
       for (const study of userStudies) {
-        await db.insert(userRolesTable)
+        await db
+          .insert(userRolesTable)
           .values({
             userId: users[0].id,
             roleId: piRole.id,
@@ -88,8 +103,10 @@ async function seed() {
 function getRoleDescription(roleKey: string): string {
   const descriptions: Record<string, string> = {
     ADMIN: "Full system administrator with all permissions",
-    PRINCIPAL_INVESTIGATOR: "Lead researcher responsible for study design and oversight",
-    RESEARCHER: "Study team member with data collection and analysis capabilities",
+    PRINCIPAL_INVESTIGATOR:
+      "Lead researcher responsible for study design and oversight",
+    RESEARCHER:
+      "Study team member with data collection and analysis capabilities",
     WIZARD: "Operator controlling robot behavior during experiments",
     OBSERVER: "Team member observing and annotating experiments",
     ASSISTANT: "Support staff with limited view access",
@@ -122,10 +139,11 @@ function getPermissionDescription(permKey: string): string {
 }
 
 function formatPermissionName(permKey: string): string {
-  return permKey.toLowerCase()
-    .split('_')
-    .map(word => word.charAt(0).toUpperCase() + word.slice(1))
-    .join(' ');
+  return permKey
+    .toLowerCase()
+    .split("_")
+    .map((word) => word.charAt(0).toUpperCase() + word.slice(1))
+    .join(" ");
 }
 
 seed().catch(console.error);

src/lib/fetch-utils.ts

@@ -0,0 +1,9 @@
+const getBaseUrl = () => {
+    if (typeof window !== 'undefined') return ''; // browser should use relative url
+    if (process.env.VERCEL_URL) return `https://${process.env.VERCEL_URL}`; // SSR should use vercel url
+    return `http://localhost:${process.env.PORT ?? 3000}`; // dev SSR should use localhost
+  }
+  
+  export function getApiUrl(path: string) {
+    return `${getBaseUrl()}${path}`;
+  }