Fixed theme

src/components/theme-toggle.tsx

@@ -0,0 +1,61 @@
+"use client"
+
+import { Button } from "@/components/ui/button"
+import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from "@/components/ui/dropdown-menu"
+import { Monitor, Moon, Sun } from "lucide-react"
+import { useTheme } from "next-themes"
+import { useEffect, useState } from "react"
+
+export function ThemeToggle() {
+    const { theme, setTheme } = useTheme()
+    const [mounted, setMounted] = useState(false)
+
+    // Prevent hydration mismatch
+    useEffect(() => {
+        setMounted(true)
+    }, [])
+
+    if (!mounted) {
+        return (
+            <Button variant="outline" size="icon" disabled>
+                <Sun className="h-[1.2rem] w-[1.2rem]" />
+            </Button>
+        )
+    }
+
+    const getIcon = () => {
+        switch (theme) {
+            case "light":
+                return <Sun className="h-[1.2rem] w-[1.2rem]" />
+            case "dark":
+                return <Moon className="h-[1.2rem] w-[1.2rem]" />
+            default:
+                return <Monitor className="h-[1.2rem] w-[1.2rem]" />
+        }
+    }
+
+    return (
+        <DropdownMenu>
+            <DropdownMenuTrigger asChild>
+                <Button variant="outline" size="icon">
+                    {getIcon()}
+                    <span className="sr-only">Toggle theme</span>
+                </Button>
+            </DropdownMenuTrigger>
+            <DropdownMenuContent align="end">
+                <DropdownMenuItem onClick={() => setTheme("light")}>
+                    <Sun className="mr-2 h-4 w-4" />
+                    <span>Light</span>
+                </DropdownMenuItem>
+                <DropdownMenuItem onClick={() => setTheme("dark")}>
+                    <Moon className="mr-2 h-4 w-4" />
+                    <span>Dark</span>
+                </DropdownMenuItem>
+                <DropdownMenuItem onClick={() => setTheme("system")}>
+                    <Monitor className="mr-2 h-4 w-4" />
+                    <span>System</span>
+                </DropdownMenuItem>
+            </DropdownMenuContent>
+        </DropdownMenu>
+    )
+}