Initial commit

components/theme-toggle.tsx

@@ -0,0 +1,35 @@
+"use client"
+
+import { useTheme } from "next-themes"
+import { useEffect, useState } from "react"
+import { Moon, Sun } from "lucide-react"
+import { Button } from "@/components/ui/button"
+
+export function ThemeToggle() {
+  const { theme, setTheme } = useTheme()
+  const [mounted, setMounted] = useState(false)
+
+  useEffect(() => {
+    setMounted(true)
+  }, [])
+
+  if (!mounted) {
+    return (
+      <Button variant="ghost" size="icon" className="h-9 w-9">
+        <span className="sr-only">Chuyển đổi chế độ sáng/tối</span>
+      </Button>
+    )
+  }
+
+  return (
+    <Button
+      variant="ghost"
+      size="icon"
+      className="h-9 w-9"
+      onClick={() => setTheme(theme === "dark" ? "light" : "dark")}
+      aria-label="Chuyển đổi chế độ sáng/tối"
+    >
+      {theme === "dark" ? <Sun className="h-4 w-4" /> : <Moon className="h-4 w-4" />}
+    </Button>
+  )
+}