init

frontend/src/components/ModeToggle.tsx

@@ -0,0 +1,40 @@
+// src/components/ModeToggle.tsx
+import { Button } from '@/components/ui/button';
+import { Moon, Sun } from 'lucide-react';
+import { useTheme } from '@/components/ThemeProvider';
+
+export default function ModeToggle() {
+  const { theme, setTheme } = useTheme();
+
+  const handleToggle = () => {
+    if (theme === 'system' && typeof window !== 'undefined') {
+      const prefersDark = window.matchMedia?.('(prefers-color-scheme: dark)').matches ?? false;
+      setTheme(prefersDark ? 'light' : 'dark');
+      return;
+    }
+
+    setTheme(theme === 'dark' ? 'light' : 'dark');
+  };
+
+  const isDark =
+    theme === 'dark' ||
+    (theme === 'system' &&
+      typeof document !== 'undefined' &&
+      document.documentElement.classList.contains('dark'));
+
+  const nextThemeLabel = isDark ? 'روشن' : 'تاریک';
+
+  return (
+    <Button
+      variant="outline"
+      size="icon"
+      aria-label={`تغییر تم به حالت ${nextThemeLabel}`}
+      title={`تغییر تم به حالت ${nextThemeLabel}`}
+      onClick={handleToggle}
+    >
+      <Sun className="h-5 w-5 rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
+      <Moon className="absolute h-5 w-5 rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
+      <span className="sr-only">Toggle theme</span>
+    </Button>
+  );
+}