'use client';

import { useFormState, useFormStatus } from 'react-dom';
import { submitContactMessage, type ContactFormState } from '@/app/contact-us/actions';

const initialState: ContactFormState = undefined;

function SubmitButton() {
  const { pending } = useFormStatus();
  return (
    <button type="submit" disabled={pending} className="btn-primary w-full disabled:opacity-60 sm:w-auto">
      {pending ? 'Sending…' : 'Send Message'}
    </button>
  );
}

export function ContactForm() {
  const [state, formAction] = useFormState(submitContactMessage, initialState);
  const errors = state?.errors ?? {};
  const values = state?.values ?? {};

  return (
    <form action={formAction} className="space-y-5">
      {state?.success && (
        <div className="rounded-md border border-green-200 bg-green-50 px-4 py-3 text-sm text-green-700">
          Thanks for reaching out — we&apos;ll get back to you shortly.
        </div>
      )}

      {Object.keys(errors).length > 0 && (
        <div className="rounded-md border border-red-200 bg-red-50 px-4 py-3 text-sm text-red-700">
          <ul className="list-inside list-disc">
            {Object.values(errors).flat().map((error) => (
              <li key={error}>{error}</li>
            ))}
          </ul>
        </div>
      )}

      <div className="grid gap-5 sm:grid-cols-2">
        <div>
          <label className="block text-sm font-semibold text-navy-800">Name *</label>
          <input type="text" name="name" defaultValue={values.name} required
                 className="mt-1.5 w-full rounded-md border-navy-100 text-sm focus:border-gold-500 focus:ring-gold-500" />
        </div>
        <div>
          <label className="block text-sm font-semibold text-navy-800">Email *</label>
          <input type="email" name="email" defaultValue={values.email} required
                 className="mt-1.5 w-full rounded-md border-navy-100 text-sm focus:border-gold-500 focus:ring-gold-500" />
        </div>
      </div>
      <div>
        <label className="block text-sm font-semibold text-navy-800">Subject</label>
        <input type="text" name="subject" defaultValue={values.subject}
               className="mt-1.5 w-full rounded-md border-navy-100 text-sm focus:border-gold-500 focus:ring-gold-500" />
      </div>
      <div>
        <label className="block text-sm font-semibold text-navy-800">Message *</label>
        <textarea name="message" rows={5} defaultValue={values.message} required
                  className="mt-1.5 w-full rounded-md border-navy-100 text-sm focus:border-gold-500 focus:ring-gold-500" />
      </div>
      <SubmitButton />
    </form>
  );
}