'use client';

import { buildWhatsAppLink, buildWhatsAppMessage } from '../../lib/whatsapp.js';

const WA_NUMBER = process.env.NEXT_PUBLIC_WA_NUMBER || '27821234567';

export default function WhatsAppButton({ order, disabled = false }) {
  const message = buildWhatsAppMessage(order);
  const href = buildWhatsAppLink(WA_NUMBER, message);

  const baseClass = `inline-flex items-center justify-center gap-2 rounded-xl font-bold text-sm
    min-h-[44px] px-6 py-3 transition-all duration-200
    focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-green-500 focus-visible:ring-offset-2`;

  if (disabled) {
    return (
      <span aria-disabled="true" role="link" aria-label="Order via WhatsApp (unavailable)"
        className={`${baseClass} bg-gray-100 text-gray-400 cursor-not-allowed`}>
        <WhatsAppIcon />
        Order via WhatsApp
      </span>
    );
  }

  return (
    <a href={href} target="_blank" rel="noopener noreferrer" aria-label="Order via WhatsApp"
       className={`${baseClass} bg-[#25D366] text-white hover:bg-[#1ebe5d] shadow-md shadow-green-200`}>
      <WhatsAppIcon />
      Order via WhatsApp
    </a>
  );
}

function WhatsAppIcon() {
  return (
    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor" className="h-5 w-5 flex-shrink-0" aria-hidden="true">
      <path d="M17.472 14.382c-.297-.149-1.758-.867-2.03-.967-.273-.099-.471-.148-.67.15-.197.297-.767.966-.94 1.164-.173.199-.347.223-.644.075-.297-.15-1.255-.463-2.39-1.475-.883-.788-1.48-1.761-1.653-2.059-.173-.297-.018-.458.13-.606.134-.133.298-.347.446-.52.149-.174.198-.298.298-.497.099-.198.05-.371-.025-.52-.075-.149-.669-1.612-.916-2.207-.242-.579-.487-.5-.669-.51-.173-.008-.371-.01-.57-.01-.198 0-.52.074-.792.372-.272.297-1.04 1.016-1.04 2.479 0 1.462 1.065 2.875 1.213 3.074.149.198 2.096 3.2 5.077 4.487.709.306 1.262.489 1.694.625.712.227 1.36.195 1.871.118.571-.085 1.758-.719 2.006-1.413.248-.694.248-1.289.173-1.413-.074-.124-.272-.198-.57-.347m-5.421 7.403h-.004a9.87 9.87 0 01-5.031-1.378l-.361-.214-3.741.982.998-3.648-.235-.374a9.86 9.86 0 01-1.51-5.26c.001-5.45 4.436-9.884 9.888-9.884 2.64 0 5.122 1.03 6.988 2.898a9.825 9.825 0 012.893 6.994c-.003 5.45-4.437 9.884-9.885 9.884m8.413-18.297A11.815 11.815 0 0012.05 0C5.495 0 .16 5.335.157 11.892c0 2.096.547 4.142 1.588 5.945L.057 24l6.305-1.654a11.882 11.882 0 005.683 1.448h.005c6.554 0 11.89-5.335 11.893-11.893a11.821 11.821 0 00-3.48-8.413z"/>
    </svg>
  );
}
