pagodera/components/theme-toggle.tsx

"use client";

import { useEffect, useState } from "react";
import { Moon, Sun, Monitor } from "lucide-react";
import { useTheme } from "next-themes";
import { Button } from "@/components/ui/button";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import { useTranslations } from "next-intl";

export function ThemeToggle() {
  const { setTheme, theme } = useTheme();
  const t = useTranslations("header.theme");
  const [mounted, setMounted] = useState(false);

  // Evitar hidratação mismatch
  useEffect(() => {
    setMounted(true);
  }, []);

  if (!mounted) {
    // Renderizar um placeholder durante SSR para manter layout consistente
    return (
      <Button variant="outline" size="icon" disabled>
        <Sun className="h-[1.2rem] w-[1.2rem]" />
        <span className="sr-only">Toggle theme</span>
      </Button>
    );
  }

  return (
    <DropdownMenu>
      <DropdownMenuTrigger asChild>
        <Button variant="outline" size="icon">
          <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
          <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
          <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>{t("light")}</span>
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => setTheme("dark")}>
          <Moon className="mr-2 h-4 w-4" />
          <span>{t("dark")}</span>
        </DropdownMenuItem>
        <DropdownMenuItem onClick={() => setTheme("system")}>
          <Monitor className="mr-2 h-4 w-4" />
          <span>{t("system")}</span>
        </DropdownMenuItem>
      </DropdownMenuContent>
    </DropdownMenu>
  );
}