Init

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

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+"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

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+"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

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+"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

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+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 }