/**
 * Premium 4-column footer w/ no duplicated nav links.
 *
 * Expected lib/content.ts shape:
 *
 *   export const brand = {
 *     name: "BRAND",
 *     legalName: "Brand Legal LLC",
 *     phone: "00 000 0000",
 *     email: "info@example.com",
 *     instagram: "@brand_handle",
 *   };
 *   export const socials = {
 *     instagram: "https://www.instagram.com/brand_handle/",
 *     whatsapp: "https://api.whatsapp.com/send/?phone=000000000000&text&type=phone_number&app_absent=0",
 *     whatsappDisplay: "+00 00 000 0000",
 *   };
 *   export const credit = {
 *     agency: "YS Lootah Tech",
 *     url: "https://yslootahtech.com/",
 *   };
 */
import { Mail, Phone } from "lucide-react";
import { brand, socials, credit } from "@/lib/content";
import { WhatsAppLink } from "./WhatsAppLink";
import { AppBadge } from "./AppBadges";

function InstagramIcon({ className }: { className?: string }) {
  return (
    <svg
      aria-hidden
      viewBox="0 0 24 24"
      fill="none"
      stroke="currentColor"
      strokeWidth="1.6"
      strokeLinecap="round"
      strokeLinejoin="round"
      className={className}
    >
      <rect x="3" y="3" width="18" height="18" rx="5" />
      <circle cx="12" cy="12" r="4" />
      <circle cx="17.5" cy="6.5" r="1.1" fill="currentColor" stroke="none" />
    </svg>
  );
}

type Link = { label: string; href: string };

type Props = {
  navigationLinks: Link[];
  serviceItems: Link[];
  legalLinks: Link[];
  /** Brand logo node (provide your own LogoMark) */
  logo?: React.ReactNode;
};

export function Footer({ navigationLinks, serviceItems, legalLinks, logo }: Props) {
  return (
    <footer className="relative overflow-hidden border-t border-bone/10 bg-obsidian pb-8 pt-11 md:pb-10 md:pt-14 lg:pb-12 lg:pt-[72px]">
      <div className="relative z-10 mx-auto max-w-[1480px] px-6 md:px-10">
        <div className="grid gap-10 lg:grid-cols-12 lg:gap-12">
          {/* Col 1 Brand + contact */}
          <div className="space-y-5 lg:col-span-4">
            <a href="/" className="inline-flex items-center gap-4">
              {logo}
              <span className="hidden font-display text-2xl tracking-[0.22em] text-bone sm:inline">
                {brand.name}
              </span>
            </a>
            <p className="max-w-md text-sm text-mist text-pretty md:text-base">
              {brand.legalName}.
            </p>
            <div className="metallic-divider" />
            <div className="space-y-2 text-sm text-mist">
              <a
                href={`tel:${brand.phone.replace(/\s/g, "")}`}
                className="flex items-center gap-3 hover:text-gold-light"
              >
                <Phone className="size-4" />
                {brand.phone}
              </a>
              <a
                href={`mailto:${brand.email}`}
                className="flex items-center gap-3 hover:text-gold-light"
              >
                <Mail className="size-4" />
                {brand.email}
              </a>
              <WhatsAppLink
                href={socials.whatsapp}
                display={socials.whatsappDisplay}
                ariaLabel={`Chat with ${brand.name} on WhatsApp`}
                inline
              />
              <a
                href={socials.instagram}
                target="_blank"
                rel="noopener noreferrer"
                className="flex items-center gap-3 hover:text-gold-light"
              >
                <InstagramIcon className="size-4" />
                Instagram · {brand.instagram}
              </a>
            </div>
          </div>

          {/* Cols 2-4 */}
          <div className="grid gap-8 sm:grid-cols-3 lg:col-span-8 lg:gap-10">
            <FooterCol title="Navigation" links={navigationLinks} />
            <FooterCol title="Services" links={serviceItems} />
            <div>
              <h4 className="text-[10px] font-medium uppercase tracking-[0.22em] text-gold-light">
                Legal &amp; App
              </h4>
              <ul className="mt-4 space-y-2.5">
                {legalLinks.map((l) => (
                  <li key={l.label}>
                    <a
                      href={l.href}
                      className="text-sm text-mist transition-colors hover:text-bone"
                    >
                      {l.label}
                    </a>
                  </li>
                ))}
              </ul>
              <div className="mt-5 flex flex-col items-start gap-2">
                <AppBadge store="appstore" small />
                <AppBadge store="googleplay" small />
              </div>
            </div>
          </div>
        </div>

        <div className="mt-9 flex flex-col items-start justify-between gap-3 border-t border-bone/10 pt-5 text-xs uppercase tracking-[0.22em] text-mist md:mt-10 md:flex-row md:items-center md:gap-6">
          <span>
            © {new Date().getFullYear()} {brand.legalName}. All rights reserved.
          </span>
        </div>

        <div className="mt-3 text-[11px] tracking-[0.04em] text-mist/60 md:text-xs">
          Website designed &amp; developed by{" "}
          <a
            href={credit.url}
            target="_blank"
            rel="noopener noreferrer"
            className="text-mist/80 underline decoration-gold/30 decoration-1 underline-offset-4 transition-colors duration-500 hover:text-gold-light hover:decoration-gold/70"
          >
            {credit.agency}
          </a>
          .
        </div>
      </div>

      {/* Watermark contained inside footer */}
      <div
        aria-hidden
        className="pointer-events-none absolute inset-x-0 bottom-0 z-0 flex select-none justify-center overflow-hidden"
      >
        <span className="translate-y-[18%] font-display text-[14vw] leading-none tracking-[-0.02em] text-bone/[0.025] md:text-[12vw]">
          {brand.name}
        </span>
      </div>
    </footer>
  );
}

function FooterCol({ title, links }: { title: string; links: Link[] }) {
  return (
    <div>
      <h4 className="text-[10px] font-medium uppercase tracking-[0.22em] text-gold-light">
        {title}
      </h4>
      <ul className="mt-4 space-y-2.5">
        {links.map((l) => (
          <li key={l.label}>
            <a
              href={l.href}
              className="text-sm text-mist transition-colors hover:text-bone"
            >
              {l.label}
            </a>
          </li>
        ))}
      </ul>
    </div>
  );
}