import Link from "next/link";
import Image from "next/image";

import { Button } from "@/components/ui";
import { getLocale, getTranslator } from "@/lib/i18n";
import { getSession } from "@/lib/auth";

export default async function LoginPage({
  searchParams
}: {
  searchParams?: Promise<{ error?: string; next?: string }>;
}) {
  const locale = await getLocale();
  const t = getTranslator(locale);

  const params = await (searchParams ?? Promise.resolve({ error: undefined, next: undefined }));
  const error = params?.error;
  const next = params?.next ?? "";
  const session = await getSession();

  const errorMessage = error === "credentials_required"
    ? t("login", "error_credentials_required")
    : error === "invalid_credentials"
      ? t("login", "error_invalid_credentials")
      : error === "rate_limited"
          ? t("login", "error_rate_limited")
        : null;

  return (
    <main className="flex min-h-screen items-center justify-center bg-background px-6 py-14">
      <div className="grid w-full max-w-5xl overflow-hidden rounded-[2rem] bg-surface-container-lowest shadow-floating">
        <section className="bg-surface-container-lowest border-b border-line px-10 py-16 text-center md:border-r md:border-b-0 md:px-14 md:py-20">
          <Image
            src="/logo_zappcare.png"
            alt="ZappCare"
            width={56}
            height={56}
            className="mx-auto h-14 w-auto rounded-full"
            priority
          />
          <h1 className="mt-8 text-4xl font-extrabold font-headline text-on-surface">{t("login", "title")}</h1>
          <p className="mx-auto mt-3 max-w-sm text-sm text-on-surface-variant">
            {t("login", "signin_subtitle")}
          </p>
          <div className="mx-auto mt-10 flex w-full max-w-sm flex-col gap-3">
            <div className="rounded-[1.5rem] bg-surface-container-low p-4">
              <p className="text-2xl font-black text-on-surface">3</p>
              <p className="mt-1 text-sm text-on-surface-variant">Role aktif saat ini</p>
            </div>
            <div className="rounded-[1.5rem] bg-surface-container-low p-4">
              <p className="text-2xl font-black text-on-surface">10+</p>
              <p className="mt-1 text-sm text-on-surface-variant">Modul operasi aktif</p>
            </div>
          </div>
        </section>
        <section className="px-8 py-10 md:px-12 md:py-16">
          <div className="mx-auto max-w-md">
            <p className="text-sm font-black uppercase tracking-[0.22em] text-primary">{t("login", "signin_label")}</p>
            <h2 className="mt-3 text-3xl font-black font-headline text-on-surface">{t("login", "signin_subtitle")}</h2>
            <p className="mt-3 text-sm text-on-surface-variant">{t("login", "signin_help")}</p>
            {session ? (
              <p className="mt-4 rounded-[1rem] border border-outline-variant bg-surface-container-high p-4 text-sm text-on-surface-variant">
                Session aktif: {session.fullName} • {session.role} • {session.tenantName}
              </p>
            ) : null}
            {errorMessage ? (
              <p className="mt-4 rounded-[1rem] border border-error-container bg-error-container p-3 text-sm text-on-error-container">
                {errorMessage}
              </p>
            ) : null}
            <form action="/auth/login" method="post" className="mt-8 space-y-4">
              <input type="hidden" name="next" value={next} />
              <label className="block text-sm text-on-surface-variant">
                {t("login", "email_label")}
                <div className="mt-1.5">
                  <input
                    name="email"
                    autoComplete="email"
                    required
                    className="h-12 w-full rounded-full border-none bg-surface-container-highest px-4 text-sm outline-none ring-1 ring-outline/40 focus:ring-2 focus:ring-primary"
                    placeholder={t("login", "work_email_placeholder")}
                  />
                </div>
              </label>
              <label className="block text-sm text-on-surface-variant">
                {t("login", "password_label")}
                <div className="mt-1.5 relative">
                  <input
                    name="password"
                    type="password"
                    autoComplete="current-password"
                    required
                    className="h-12 w-full rounded-full border-none bg-surface-container-highest px-4 text-sm outline-none ring-1 ring-outline/40 focus:ring-2 focus:ring-primary"
                    placeholder={t("login", "password_placeholder")}
                  />
                  <span className="material-symbols-outlined absolute right-4 top-1/2 -translate-y-1/2 text-outline">visibility</span>
                </div>
              </label>
            <Button type="submit" className="w-full">{t("login", "sign_in_button")}</Button>
            <button
              type="button"
              className="inline-flex h-12 w-full items-center justify-center gap-2 rounded-xl border border-line bg-surface-container-low px-4 py-2 text-sm font-semibold text-on-surface transition hover:bg-surface-container-high"
            >
              <span className="material-symbols-outlined text-[20px]">fingerprint</span>
              <span>{t("login", "sso_button")}</span>
            </button>
            <p className="text-center text-sm text-on-surface-variant">
              {t("login", "no_account_label")} <Link href="/" className="font-bold text-primary hover:text-on-primary-container">{t("login", "contact_admin")}</Link>
            </p>
            <div className="flex flex-wrap gap-4 text-sm text-on-surface-variant">
              <Link href="/forgot-password" className="font-semibold text-primary hover:text-on-primary-container">
                {t("login", "remember_label")}
              </Link>
            </div>
            </form>
          </div>
        </section>
      </div>
    </main>
  );
}