Init

components.json

@@ -0,0 +1,21 @@
+{
+  "$schema": "https://ui.shadcn.com/schema.json",
+  "style": "new-york",
+  "rsc": true,
+  "tsx": true,
+  "tailwind": {
+    "config": "",
+    "css": "src/app/globals.css",
+    "baseColor": "neutral",
+    "cssVariables": true,
+    "prefix": ""
+  },
+  "aliases": {
+    "components": "@/components",
+    "utils": "@/lib/utils",
+    "ui": "@/components/ui",
+    "lib": "@/lib",
+    "hooks": "@/hooks"
+  },
+  "iconLibrary": "lucide"
+}

drizzle.config.ts

@@ -0,0 +1,10 @@
+import type { Config } from "drizzle-kit"
+
+export default {
+  dialect: "postgresql",
+  schema: "./src/lib/schema.ts",
+  out: "./drizzle",
+  dbCredentials: {
+    url: process.env.DATABASE_URL!,
+  },
+} satisfies Config

package.json

@@ -6,22 +6,42 @@
     "dev": "next dev --turbopack",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint"
+    "lint": "next lint",
+    "db:generate": "drizzle-kit generate",
+    "db:migrate": "drizzle-kit migrate",
+    "db:push": "drizzle-kit push",
+    "db:studio": "drizzle-kit studio"
   },
   "dependencies": {
+    "@ai-sdk/openai": "^2.0.9",
+    "@ai-sdk/react": "^2.0.9",
+    "@radix-ui/react-slot": "^1.2.3",
+    "ai": "^5.0.9",
+    "better-auth": "^1.3.4",
+    "class-variance-authority": "^0.7.1",
+    "clsx": "^2.1.1",
+    "drizzle-orm": "^0.44.4",
+    "lucide-react": "^0.539.0",
+    "next": "15.4.6",
+    "pg": "^8.16.3",
+    "postgres": "^3.4.7",
     "react": "19.1.0",
     "react-dom": "19.1.0",
-    "next": "15.4.6"
+    "tailwind-merge": "^3.3.1",
+    "zod": "^4.0.17"
   },
   "devDependencies": {
-    "typescript": "^5",
+    "@eslint/eslintrc": "^3",
+    "@tailwindcss/postcss": "^4",
     "@types/node": "^20",
+    "@types/pg": "^8.15.5",
     "@types/react": "^19",
     "@types/react-dom": "^19",
-    "@tailwindcss/postcss": "^4",
-    "tailwindcss": "^4",
+    "drizzle-kit": "^0.31.4",
     "eslint": "^9",
     "eslint-config-next": "15.4.6",
-    "@eslint/eslintrc": "^3"
+    "tailwindcss": "^4",
+    "tw-animate-css": "^1.3.6",
+    "typescript": "^5"
   }
 }

src/app/api/auth/[...all]/route.ts

@@ -0,0 +1,6 @@
+import { auth } from "@/lib/auth"
+import { toNextJsHandler } from "better-auth/next-js"
+
+const handler = toNextJsHandler(auth)
+
+export { handler as GET, handler as POST }

src/app/api/chat/route.ts

@@ -0,0 +1,13 @@
+import { openai } from "@ai-sdk/openai"
+import { streamText } from "ai"
+
+export async function POST(req: Request) {
+  const { messages } = await req.json()
+
+  const result = streamText({
+    model: openai("gpt-3.5-turbo"),
+    messages,
+  })
+
+  return result.toDataStreamResponse()
+}

src/app/chat/page.tsx

@@ -0,0 +1,72 @@
+"use client"
+
+import { useChat } from "ai/react"
+import { Button } from "@/components/ui/button"
+import { UserProfile } from "@/components/auth/user-profile"
+import { useSession } from "@/lib/auth-client"
+
+export default function ChatPage() {
+  const { data: session, isPending } = useSession()
+  const { messages, input, handleInputChange, handleSubmit } = useChat()
+
+  if (isPending) {
+    return <div className="flex justify-center items-center h-screen">Loading...</div>
+  }
+
+  if (!session) {
+    return (
+      <div className="flex justify-center items-center h-screen">
+        <UserProfile />
+      </div>
+    )
+  }
+
+  return (
+    <div className="flex flex-col h-screen max-w-2xl mx-auto p-4">
+      <div className="flex justify-between items-center mb-4 pb-4 border-b">
+        <h1 className="text-2xl font-bold">AI Chat</h1>
+        <div className="flex items-center gap-4">
+          <span className="text-sm text-muted-foreground">
+            Welcome, {session.user.name}!
+          </span>
+          <UserProfile />
+        </div>
+      </div>
+      
+      <div className="flex-1 overflow-y-auto space-y-4 mb-4">
+        {messages.length === 0 && (
+          <div className="text-center text-muted-foreground">
+            Start a conversation with AI
+          </div>
+        )}
+        {messages.map((message) => (
+          <div
+            key={message.id}
+            className={`p-3 rounded-lg ${
+              message.role === "user"
+                ? "bg-primary text-primary-foreground ml-auto max-w-[80%]"
+                : "bg-muted max-w-[80%]"
+            }`}
+          >
+            <div className="text-sm font-medium mb-1">
+              {message.role === "user" ? "You" : "AI"}
+            </div>
+            <div>{message.content}</div>
+          </div>
+        ))}
+      </div>
+
+      <form onSubmit={handleSubmit} className="flex gap-2">
+        <input
+          value={input}
+          onChange={handleInputChange}
+          placeholder="Type your message..."
+          className="flex-1 p-2 border border-border rounded-md focus:outline-none focus:ring-2 focus:ring-ring"
+        />
+        <Button type="submit" disabled={!input.trim()}>
+          Send
+        </Button>
+      </form>
+    </div>
+  )
+}

src/app/dashboard/page.tsx

@@ -0,0 +1,54 @@
+"use client"
+
+import { UserProfile } from "@/components/auth/user-profile"
+import { useSession } from "@/lib/auth-client"
+import { Button } from "@/components/ui/button"
+import Link from "next/link"
+
+export default function DashboardPage() {
+  const { data: session, isPending } = useSession()
+
+  if (isPending) {
+    return <div className="flex justify-center items-center h-screen">Loading...</div>
+  }
+
+  if (!session) {
+    return (
+      <div className="flex justify-center items-center h-screen">
+        <UserProfile />
+      </div>
+    )
+  }
+
+  return (
+    <div className="container mx-auto p-6">
+      <div className="flex justify-between items-center mb-8">
+        <h1 className="text-3xl font-bold">Dashboard</h1>
+        <UserProfile />
+      </div>
+      
+      <div className="grid grid-cols-1 md:grid-cols-2 gap-6">
+        <div className="p-6 border border-border rounded-lg">
+          <h2 className="text-xl font-semibold mb-2">AI Chat</h2>
+          <p className="text-muted-foreground mb-4">
+            Start a conversation with AI using the Vercel AI SDK
+          </p>
+          <Button asChild>
+            <Link href="/chat">Go to Chat</Link>
+          </Button>
+        </div>
+        
+        <div className="p-6 border border-border rounded-lg">
+          <h2 className="text-xl font-semibold mb-2">Profile</h2>
+          <p className="text-muted-foreground mb-4">
+            Manage your account settings and preferences
+          </p>
+          <div className="space-y-2">
+            <p><strong>Name:</strong> {session.user.name}</p>
+            <p><strong>Email:</strong> {session.user.email}</p>
+          </div>
+        </div>
+      </div>
+    </div>
+  )
+}

src/app/globals.css

@@ -1,26 +1,122 @@
 @import "tailwindcss";
+@import "tw-animate-css";
 
-:root {
-  --background: #ffffff;
-  --foreground: #171717;
-}
+@custom-variant dark (&:is(.dark *));
 
 @theme inline {
   --color-background: var(--background);
   --color-foreground: var(--foreground);
   --font-sans: var(--font-geist-sans);
   --font-mono: var(--font-geist-mono);
+  --color-sidebar-ring: var(--sidebar-ring);
+  --color-sidebar-border: var(--sidebar-border);
+  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
+  --color-sidebar-accent: var(--sidebar-accent);
+  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
+  --color-sidebar-primary: var(--sidebar-primary);
+  --color-sidebar-foreground: var(--sidebar-foreground);
+  --color-sidebar: var(--sidebar);
+  --color-chart-5: var(--chart-5);
+  --color-chart-4: var(--chart-4);
+  --color-chart-3: var(--chart-3);
+  --color-chart-2: var(--chart-2);
+  --color-chart-1: var(--chart-1);
+  --color-ring: var(--ring);
+  --color-input: var(--input);
+  --color-border: var(--border);
+  --color-destructive: var(--destructive);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-accent: var(--accent);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-muted: var(--muted);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-secondary: var(--secondary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-primary: var(--primary);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-popover: var(--popover);
+  --color-card-foreground: var(--card-foreground);
+  --color-card: var(--card);
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
 }
 
-@media (prefers-color-scheme: dark) {
 :root {
-    --background: #0a0a0a;
-    --foreground: #ededed;
-  }
+  --radius: 0.625rem;
+  --background: oklch(1 0 0);
+  --foreground: oklch(0.145 0 0);
+  --card: oklch(1 0 0);
+  --card-foreground: oklch(0.145 0 0);
+  --popover: oklch(1 0 0);
+  --popover-foreground: oklch(0.145 0 0);
+  --primary: oklch(0.205 0 0);
+  --primary-foreground: oklch(0.985 0 0);
+  --secondary: oklch(0.97 0 0);
+  --secondary-foreground: oklch(0.205 0 0);
+  --muted: oklch(0.97 0 0);
+  --muted-foreground: oklch(0.556 0 0);
+  --accent: oklch(0.97 0 0);
+  --accent-foreground: oklch(0.205 0 0);
+  --destructive: oklch(0.577 0.245 27.325);
+  --border: oklch(0.922 0 0);
+  --input: oklch(0.922 0 0);
+  --ring: oklch(0.708 0 0);
+  --chart-1: oklch(0.646 0.222 41.116);
+  --chart-2: oklch(0.6 0.118 184.704);
+  --chart-3: oklch(0.398 0.07 227.392);
+  --chart-4: oklch(0.828 0.189 84.429);
+  --chart-5: oklch(0.769 0.188 70.08);
+  --sidebar: oklch(0.985 0 0);
+  --sidebar-foreground: oklch(0.145 0 0);
+  --sidebar-primary: oklch(0.205 0 0);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.97 0 0);
+  --sidebar-accent-foreground: oklch(0.205 0 0);
+  --sidebar-border: oklch(0.922 0 0);
+  --sidebar-ring: oklch(0.708 0 0);
 }
 
-body {
-  background: var(--background);
-  color: var(--foreground);
-  font-family: Arial, Helvetica, sans-serif;
+.dark {
+  --background: oklch(0.145 0 0);
+  --foreground: oklch(0.985 0 0);
+  --card: oklch(0.205 0 0);
+  --card-foreground: oklch(0.985 0 0);
+  --popover: oklch(0.205 0 0);
+  --popover-foreground: oklch(0.985 0 0);
+  --primary: oklch(0.922 0 0);
+  --primary-foreground: oklch(0.205 0 0);
+  --secondary: oklch(0.269 0 0);
+  --secondary-foreground: oklch(0.985 0 0);
+  --muted: oklch(0.269 0 0);
+  --muted-foreground: oklch(0.708 0 0);
+  --accent: oklch(0.269 0 0);
+  --accent-foreground: oklch(0.985 0 0);
+  --destructive: oklch(0.704 0.191 22.216);
+  --border: oklch(1 0 0 / 10%);
+  --input: oklch(1 0 0 / 15%);
+  --ring: oklch(0.556 0 0);
+  --chart-1: oklch(0.488 0.243 264.376);
+  --chart-2: oklch(0.696 0.17 162.48);
+  --chart-3: oklch(0.769 0.188 70.08);
+  --chart-4: oklch(0.627 0.265 303.9);
+  --chart-5: oklch(0.645 0.246 16.439);
+  --sidebar: oklch(0.205 0 0);
+  --sidebar-foreground: oklch(0.985 0 0);
+  --sidebar-primary: oklch(0.488 0.243 264.376);
+  --sidebar-primary-foreground: oklch(0.985 0 0);
+  --sidebar-accent: oklch(0.269 0 0);
+  --sidebar-accent-foreground: oklch(0.985 0 0);
+  --sidebar-border: oklch(1 0 0 / 10%);
+  --sidebar-ring: oklch(0.556 0 0);
+}
+
+@layer base {
+  * {
+    @apply border-border outline-ring/50;
+  }
+  body {
+    @apply bg-background text-foreground;
+  }
 }

src/app/page.tsx

@@ -1,103 +1,106 @@
-import Image from "next/image";
+import Link from "next/link"
+import { Button } from "@/components/ui/button"
+import { UserProfile } from "@/components/auth/user-profile"
 
 export default function Home() {
   return (
-    <div className="font-sans grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 pb-20 gap-16 sm:p-20">
-      <main className="flex flex-col gap-[32px] row-start-2 items-center sm:items-start">
-        <Image
-          className="dark:invert"
-          src="/next.svg"
-          alt="Next.js logo"
-          width={180}
-          height={38}
-          priority
-        />
-        <ol className="font-mono list-inside list-decimal text-sm/6 text-center sm:text-left">
-          <li className="mb-2 tracking-[-.01em]">
-            Get started by editing{" "}
-            <code className="bg-black/[.05] dark:bg-white/[.06] font-mono font-semibold px-1 py-0.5 rounded">
-              src/app/page.tsx
-            </code>
-            .
-          </li>
-          <li className="tracking-[-.01em]">
-            Save and see your changes instantly.
-          </li>
-        </ol>
+    <div className="min-h-screen flex flex-col">
+      <header className="border-b">
+        <div className="container mx-auto px-4 py-4 flex justify-between items-center">
+          <h1 className="text-2xl font-bold">Next.js Starter Kit</h1>
+          <UserProfile />
+        </div>
+      </header>
 
-        <div className="flex gap-4 items-center flex-col sm:flex-row">
-          <a
-            className="rounded-full border border-solid border-transparent transition-colors flex items-center justify-center bg-foreground text-background gap-2 hover:bg-[#383838] dark:hover:bg-[#ccc] font-medium text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 sm:w-auto"
-            href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            <Image
-              className="dark:invert"
-              src="/vercel.svg"
-              alt="Vercel logomark"
-              width={20}
-              height={20}
-            />
-            Deploy now
-          </a>
-          <a
-            className="rounded-full border border-solid border-black/[.08] dark:border-white/[.145] transition-colors flex items-center justify-center hover:bg-[#f2f2f2] dark:hover:bg-[#1a1a1a] hover:border-transparent font-medium text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 w-full sm:w-auto md:w-[158px]"
-            href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-            target="_blank"
-            rel="noopener noreferrer"
-          >
-            Read our docs
-          </a>
+      <main className="flex-1 container mx-auto px-4 py-12">
+        <div className="max-w-4xl mx-auto text-center space-y-8">
+          <div className="space-y-4">
+            <h2 className="text-4xl font-bold tracking-tight">
+              Welcome to Your Next.js Boilerplate
+            </h2>
+            <p className="text-xl text-muted-foreground">
+              A complete starter kit with authentication, database, AI integration, and modern tooling
+            </p>
+          </div>
+
+          <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-6 mt-12">
+            <div className="p-6 border rounded-lg">
+              <h3 className="font-semibold mb-2">🔐 Authentication</h3>
+              <p className="text-sm text-muted-foreground">
+                Better Auth with Google OAuth integration
+              </p>
+            </div>
+            <div className="p-6 border rounded-lg">
+              <h3 className="font-semibold mb-2">🗄️ Database</h3>
+              <p className="text-sm text-muted-foreground">
+                Drizzle ORM with PostgreSQL setup
+              </p>
+            </div>
+            <div className="p-6 border rounded-lg">
+              <h3 className="font-semibold mb-2">🤖 AI Ready</h3>
+              <p className="text-sm text-muted-foreground">
+                Vercel AI SDK with OpenAI integration
+              </p>
+            </div>
+            <div className="p-6 border rounded-lg">
+              <h3 className="font-semibold mb-2">🎨 UI Components</h3>
+              <p className="text-sm text-muted-foreground">
+                shadcn/ui with Tailwind CSS
+              </p>
+            </div>
+          </div>
+
+          <div className="space-y-6 mt-12">
+            <h3 className="text-2xl font-semibold">Next Steps</h3>
+            <div className="grid grid-cols-1 md:grid-cols-2 gap-4 text-left">
+              <div className="p-4 border rounded-lg">
+                <h4 className="font-medium mb-2">1. Set up environment variables</h4>
+                <p className="text-sm text-muted-foreground mb-2">
+                  Copy <code>.env.example</code> to <code>.env.local</code> and configure:
+                </p>
+                <ul className="text-sm text-muted-foreground space-y-1 list-disc list-inside">
+                  <li>DATABASE_URL (PostgreSQL connection string)</li>
+                  <li>GOOGLE_CLIENT_ID (OAuth credentials)</li>
+                  <li>GOOGLE_CLIENT_SECRET (OAuth credentials)</li>
+                  <li>OPENAI_API_KEY (for AI functionality)</li>
+                </ul>
+              </div>
+              <div className="p-4 border rounded-lg">
+                <h4 className="font-medium mb-2">2. Set up your database</h4>
+                <p className="text-sm text-muted-foreground mb-2">
+                  Run database migrations:
+                </p>
+                <code className="text-sm bg-muted p-2 rounded block">
+                  npx drizzle-kit push
+                </code>
+              </div>
+              <div className="p-4 border rounded-lg">
+                <h4 className="font-medium mb-2">3. Try the features</h4>
+                <div className="space-y-2">
+                  <Button asChild size="sm" className="w-full">
+                    <Link href="/dashboard">View Dashboard</Link>
+                  </Button>
+                  <Button asChild variant="outline" size="sm" className="w-full">
+                    <Link href="/chat">Try AI Chat</Link>
+                  </Button>
+                </div>
+              </div>
+              <div className="p-4 border rounded-lg">
+                <h4 className="font-medium mb-2">4. Start building</h4>
+                <p className="text-sm text-muted-foreground">
+                  Customize the components, add your own pages, and build your application on top of this solid foundation.
+                </p>
+              </div>
+            </div>
+          </div>
         </div>
       </main>
-      <footer className="row-start-3 flex gap-[24px] flex-wrap items-center justify-center">
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/file.svg"
-            alt="File icon"
-            width={16}
-            height={16}
-          />
-          Learn
-        </a>
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/window.svg"
-            alt="Window icon"
-            width={16}
-            height={16}
-          />
-          Examples
-        </a>
-        <a
-          className="flex items-center gap-2 hover:underline hover:underline-offset-4"
-          href="https://nextjs.org?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
-          target="_blank"
-          rel="noopener noreferrer"
-        >
-          <Image
-            aria-hidden
-            src="/globe.svg"
-            alt="Globe icon"
-            width={16}
-            height={16}
-          />
-          Go to nextjs.org →
-        </a>
+
+      <footer className="border-t py-8 text-center text-sm text-muted-foreground">
+        <div className="container mx-auto px-4">
+          Built with Next.js, Better Auth, Drizzle ORM, and Vercel AI SDK
+        </div>
       </footer>
     </div>
-  );
+  )
 }

src/components/auth/sign-in-button.tsx

@@ -0,0 +1,29 @@
+"use client"
+
+import { signIn, useSession } from "@/lib/auth-client"
+import { Button } from "@/components/ui/button"
+
+export function SignInButton() {
+  const { data: session, isPending } = useSession()
+
+  if (isPending) {
+    return <Button disabled>Loading...</Button>
+  }
+
+  if (session) {
+    return null
+  }
+
+  return (
+    <Button
+      onClick={async () => {
+        await signIn.social({
+          provider: "google",
+          callbackURL: "/dashboard",
+        })
+      }}
+    >
+      Sign in with Google
+    </Button>
+  )
+}

src/components/auth/sign-out-button.tsx

@@ -0,0 +1,33 @@
+"use client"
+
+import { signOut, useSession } from "@/lib/auth-client"
+import { Button } from "@/components/ui/button"
+
+export function SignOutButton() {
+  const { data: session, isPending } = useSession()
+
+  if (isPending) {
+    return <Button disabled>Loading...</Button>
+  }
+
+  if (!session) {
+    return null
+  }
+
+  return (
+    <Button
+      variant="outline"
+      onClick={async () => {
+        await signOut({
+          fetchOptions: {
+            onSuccess: () => {
+              window.location.href = "/"
+            },
+          },
+        })
+      }}
+    >
+      Sign out
+    </Button>
+  )
+}

src/components/auth/user-profile.tsx

@@ -0,0 +1,40 @@
+"use client"
+
+import { useSession } from "@/lib/auth-client"
+import { SignInButton } from "./sign-in-button"
+import { SignOutButton } from "./sign-out-button"
+
+export function UserProfile() {
+  const { data: session, isPending } = useSession()
+
+  if (isPending) {
+    return <div>Loading...</div>
+  }
+
+  if (!session) {
+    return (
+      <div className="flex flex-col items-center gap-4 p-6">
+        <h2 className="text-xl font-semibold">Welcome</h2>
+        <p className="text-muted-foreground">Please sign in to continue</p>
+        <SignInButton />
+      </div>
+    )
+  }
+
+  return (
+    <div className="flex flex-col items-center gap-4 p-6">
+      <div className="text-center">
+        {session.user?.image && (
+          <img
+            src={session.user.image}
+            alt={session.user.name || "User"}
+            className="w-16 h-16 rounded-full mx-auto mb-4"
+          />
+        )}
+        <h2 className="text-xl font-semibold">{session.user?.name}</h2>
+        <p className="text-muted-foreground">{session.user?.email}</p>
+      </div>
+      <SignOutButton />
+    </div>
+  )
+}

src/components/ui/button.tsx

@@ -0,0 +1,59 @@
+import * as React from "react"
+import { Slot } from "@radix-ui/react-slot"
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+const buttonVariants = cva(
+  "inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-md text-sm font-medium transition-all disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg:not([class*='size-'])]:size-4 shrink-0 [&_svg]:shrink-0 outline-none focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px] aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
+  {
+    variants: {
+      variant: {
+        default:
+          "bg-primary text-primary-foreground shadow-xs hover:bg-primary/90",
+        destructive:
+          "bg-destructive text-white shadow-xs hover:bg-destructive/90 focus-visible:ring-destructive/20 dark:focus-visible:ring-destructive/40 dark:bg-destructive/60",
+        outline:
+          "border bg-background shadow-xs hover:bg-accent hover:text-accent-foreground dark:bg-input/30 dark:border-input dark:hover:bg-input/50",
+        secondary:
+          "bg-secondary text-secondary-foreground shadow-xs hover:bg-secondary/80",
+        ghost:
+          "hover:bg-accent hover:text-accent-foreground dark:hover:bg-accent/50",
+        link: "text-primary underline-offset-4 hover:underline",
+      },
+      size: {
+        default: "h-9 px-4 py-2 has-[>svg]:px-3",
+        sm: "h-8 rounded-md gap-1.5 px-3 has-[>svg]:px-2.5",
+        lg: "h-10 rounded-md px-6 has-[>svg]:px-4",
+        icon: "size-9",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+      size: "default",
+    },
+  }
+)
+
+function Button({
+  className,
+  variant,
+  size,
+  asChild = false,
+  ...props
+}: React.ComponentProps<"button"> &
+  VariantProps<typeof buttonVariants> & {
+    asChild?: boolean
+  }) {
+  const Comp = asChild ? Slot : "button"
+
+  return (
+    <Comp
+      data-slot="button"
+      className={cn(buttonVariants({ variant, size, className }))}
+      {...props}
+    />
+  )
+}
+
+export { Button, buttonVariants }

src/lib/auth-client.ts

@@ -0,0 +1,13 @@
+import { createAuthClient } from "better-auth/react"
+
+export const authClient = createAuthClient({
+  baseURL: process.env.NEXT_PUBLIC_APP_URL || "http://localhost:3000",
+})
+
+export const {
+  signIn,
+  signOut,
+  signUp,
+  useSession,
+  getSession,
+} = authClient

src/lib/auth.ts

@@ -0,0 +1,15 @@
+import { betterAuth } from "better-auth"
+import { drizzleAdapter } from "better-auth/adapters/drizzle"
+import { db } from "./db"
+
+export const auth = betterAuth({
+  database: drizzleAdapter(db, {
+    provider: "pg",
+  }),
+  socialProviders: {
+    google: {
+      clientId: process.env.GOOGLE_CLIENT_ID as string,
+      clientSecret: process.env.GOOGLE_CLIENT_SECRET as string,
+    },
+  },
+})

src/lib/db.ts

@@ -0,0 +1,12 @@
+import { drizzle } from "drizzle-orm/postgres-js"
+import postgres from "postgres"
+import * as schema from "./schema"
+
+const connectionString = process.env.DATABASE_URL as string
+
+if (!connectionString) {
+  throw new Error("DATABASE_URL environment variable is not set")
+}
+
+const client = postgres(connectionString)
+export const db = drizzle(client, { schema })

src/lib/schema.ts

@@ -0,0 +1,47 @@
+import { pgTable, text, timestamp, boolean, primaryKey } from "drizzle-orm/pg-core"
+
+export const user = pgTable("user", {
+  id: text("id").primaryKey(),
+  name: text("name"),
+  email: text("email").unique(),
+  emailVerified: boolean("emailVerified"),
+  image: text("image"),
+  createdAt: timestamp("createdAt").defaultNow(),
+  updatedAt: timestamp("updatedAt").defaultNow(),
+})
+
+export const session = pgTable("session", {
+  id: text("id").primaryKey(),
+  expiresAt: timestamp("expiresAt"),
+  token: text("token").unique(),
+  createdAt: timestamp("createdAt").defaultNow(),
+  updatedAt: timestamp("updatedAt").defaultNow(),
+  ipAddress: text("ipAddress"),
+  userAgent: text("userAgent"),
+  userId: text("userId").references(() => user.id, { onDelete: "cascade" }),
+})
+
+export const account = pgTable("account", {
+  id: text("id").primaryKey(),
+  accountId: text("accountId"),
+  providerId: text("providerId"),
+  userId: text("userId").references(() => user.id, { onDelete: "cascade" }),
+  accessToken: text("accessToken"),
+  refreshToken: text("refreshToken"),
+  idToken: text("idToken"),
+  accessTokenExpiresAt: timestamp("accessTokenExpiresAt"),
+  refreshTokenExpiresAt: timestamp("refreshTokenExpiresAt"),
+  scope: text("scope"),
+  password: text("password"),
+  createdAt: timestamp("createdAt").defaultNow(),
+  updatedAt: timestamp("updatedAt").defaultNow(),
+})
+
+export const verification = pgTable("verification", {
+  id: text("id").primaryKey(),
+  identifier: text("identifier"),
+  value: text("value"),
+  expiresAt: timestamp("expiresAt"),
+  createdAt: timestamp("createdAt").defaultNow(),
+  updatedAt: timestamp("updatedAt").defaultNow(),
+})

src/lib/utils.ts

@@ -0,0 +1,6 @@
+import { clsx, type ClassValue } from "clsx"
+import { twMerge } from "tailwind-merge"
+
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs))
+}