import { useEffect, useState } from 'react'
import { useTheme } from 'next-themes'

function SunIcon(props: React.ComponentPropsWithoutRef<'svg'>) {
  return (
    <svg
      viewBox="0 0 20 20"
      fill="none"
      aria-hidden="true"
      {...props}
    >
      <path d="M12.5 10a2.5 2.5 0 1 1-5 0 2.5 2.5 0 0 1 5 0Z"/>
      <path
        strokeLinecap="round"
        d="M10 5.5v-1M13.182 6.818l.707-.707M14.5 10h1M13.182 13.182l.707.707M10 15.5v-1M6.11 13.889l.708-.707M4.5 10h1M6.11 6.111l.708.707"
      />
    </svg>
  )
}

function MoonIcon(props: React.ComponentPropsWithoutRef<'svg'>) {
  return (
    <svg
      viewBox="0 0 20 20"
      fill="none"
      aria-hidden="true"
      {...props}
    >
      <path d="M15.224 11.724a5.5 5.5 0 0 1-6.949-6.949 5.5 5.5 0 1 0 6.949 6.949Z"/>
    </svg>
  )
}

export function ThemeToggle() {
  const { resolvedTheme, setTheme } = useTheme()
  const otherTheme = resolvedTheme === 'dark' ? 'light' : 'dark'
  const [mounted, setMounted] = useState(false)

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

  return (
    <button
      type="button"
      className="flex h-6 w-6 items-center justify-center rounded-md transition hover:bg-zinc-900/5 dark:hover:bg-white/5"
      aria-label={mounted ? `Switch to ${otherTheme} theme` : 'Toggle theme'}
      onClick={() => setTheme(otherTheme)}
    >
      <SunIcon className="h-5 w-5 stroke-zinc-900 dark:hidden"/>
      <MoonIcon className="hidden h-5 w-5 stroke-white dark:block"/>
    </button>
  )
}
