'use client'

import * as React from 'react'
import { useTheme } from 'next-themes'
import { Button } from '@/components/ui/button'

export function ThemeToggle() {
  const { theme, setTheme } = useTheme()
  const [mounted, setMounted] = React.useState(false)

  React.useEffect(() => {
    setMounted(true)
  }, [])

  if (!mounted) {
    return (
      <Button variant="ghost" size="icon-sm">
        <span className="size-4" />
      </Button>
    )
  }

  return (
    <Button
      variant="ghost"
      size="icon-sm"
      onClick={() => setTheme(theme === 'dark' ? 'light' : 'dark')}
      aria-label="Toggle theme"
    >
      {theme === 'dark' ? (
        <svg
          width="16"
          height="16"
          viewBox="0 0 24 24"
          fill="none"
          stroke="currentColor"
          strokeWidth="2"
          strokeLinecap="round"
          strokeLinejoin="round"
        >
          <circle cx="12" cy="12" r="4" />
          <path d="M12 2v2" />
          <path d="M12 20v2" />
          <path d="m4.93 4.93 1.41 1.41" />
          <path d="m17.66 17.66 1.41 1.41" />
          <path d="M2 12h2" />
          <path d="M20 12h2" />
          <path d="m6.34 17.66-1.41 1.41" />
          <path d="m19.07 4.93-1.41 1.41" />
        </svg>
      ) : (
        <svg
          width="16"
          height="16"
          viewBox="0 0 24 24"
          fill="none"
          stroke="currentColor"
          strokeWidth="2"
          strokeLinecap="round"
          strokeLinejoin="round"
        >
          <path d="M12 3a6 6 0 0 0 9 9 9 9 0 1 1-9-9Z" />
        </svg>
      )}
    </Button>
  )
}
