import { count, desc, eq } from "drizzle-orm";
import { headers } from "next/headers";
import Image from "next/image";
import Link from "next/link";
import { getTranslations } from "next-intl/server";
import { RegisterForm } from "@/components/auth/register-form";
import { Clock } from "@/components/clock";
import { SectionCard } from "@/components/home-section";
import { LanguageSwitcher } from "@/components/language-switcher";
import { Reveal } from "@/components/motion-reveal";
import { UserAvatarThumbnail } from "@/components/shared/user-avatar-thumbnail";
import { ThemeSwitcher } from "@/components/theme-switcher";
import { cached } from "@/lib/cache";
import { db, User } from "@/lib/db";
import { resolveHotelName } from "@/lib/hotel-name";
import { captchaConfig } from "@/lib/services/captcha";
import { siteSettings } from "@/lib/services/site-settings";

export default async function RegisterPage() {
	const th = await getTranslations("header");
	const tpr = await getTranslations("pages.register");
	const [hotelName, cfg, logo] = await Promise.all([
		resolveHotelName(),
		captchaConfig(),
		siteSettings.get("cms_logo", ""),
	]);
	const nonce = (await headers()).get("x-nonce") ?? undefined;

	const [online, recentUsers, latestUsers] = await Promise.all([
		cached("online_count", 10_000, () =>
			db
				.select({ total: count() })
				.from(User)
				.where(eq(User.online, "1"))
				.then((rows) => rows[0]?.total ?? 0),
		).catch(() => 0),
		cached("register_online_users", 10_000, () =>
			db
				.select({ username: User.username, look: User.look })
				.from(User)
				.where(eq(User.online, "1"))
				.limit(8),
		).catch(() => []),
		cached("register_latest_users", 30_000, () =>
			db
				.select({ username: User.username, look: User.look })
				.from(User)
				.orderBy(desc(User.accountCreated))
				.limit(8),
		).catch(() => []),
	]);

	return (
		<div className="mx-auto w-full max-w-6xl flex flex-col gap-8 pb-16">
			{/* ── Top Bar ── */}
			<Reveal>
				<div
					className="relative flex items-center justify-between rounded-xl border px-5 py-3"
					style={{
						background:
							"color-mix(in srgb, var(--color-surface) 60%, transparent)",
						backdropFilter: "blur(14px)",
						WebkitBackdropFilter: "blur(14px)",
						borderColor:
							"color-mix(in srgb, var(--color-text-muted) 8%, transparent)",
					}}
				>
					<div className="flex items-center gap-3">
						{logo ? (
							<Image
								src={logo}
								alt={hotelName}
								width={100}
								height={28}
								className="shrink-0 object-contain"
								unoptimized
								style={{ maxHeight: 28, width: "auto", height: "auto" }}
							/>
						) : (
							<Image
								src="/assets/images/icons/lighthouse.png"
								alt={hotelName}
								width={28}
								height={28}
								className="shrink-0"
								unoptimized
							/>
						)}
						<span
							className="text-sm font-extrabold uppercase tracking-wide"
							style={{ color: "var(--color-text-readable)" }}
						>
							{hotelName}
						</span>
					</div>
					<div
						className="flex items-center gap-1.5 rounded-lg px-2 py-1"
						style={{
							background:
								"color-mix(in srgb, var(--color-text-muted) 4%, transparent)",
						}}
					>
						<LanguageSwitcher />
						<div
							className="w-px h-5"
							style={{
								background:
									"color-mix(in srgb, var(--color-text-muted) 12%, transparent)",
							}}
						/>
						<Clock />
						<div
							className="w-px h-5"
							style={{
								background:
									"color-mix(in srgb, var(--color-text-muted) 12%, transparent)",
							}}
						/>
						<ThemeSwitcher />
					</div>
				</div>
			</Reveal>

			<Reveal>
				<div className="flex flex-col gap-8 lg:flex-row">
					{/* Left panel */}
					<div className="lg:w-80 shrink-0 space-y-4">
						<div
							className="relative overflow-hidden rounded-2xl border p-6 text-center"
							style={{
								borderColor:
									"color-mix(in srgb, var(--color-primary) 20%, transparent)",
								background: `url(/assets/images/background.png) center/cover no-repeat`,
								boxShadow: "var(--shadow-card)",
							}}
						>
							<div
								className="absolute inset-0"
								style={{
									background:
										"linear-gradient(135deg, color-mix(in srgb, var(--color-surface) 85%, transparent) 0%, color-mix(in srgb, var(--color-surface) 40%, transparent) 100%)",
								}}
							/>
							<div className="relative">
								<Image
									src="/assets/images/FrankwithBag.gif"
									alt="Frank"
									width={130}
									height={170}
									className="object-contain mx-auto drop-shadow-xl animate-float"
									unoptimized
									priority
								/>
								<div
									className="inline-flex items-center gap-2 px-3.5 py-1 rounded-full text-xs font-bold uppercase tracking-wider mt-4 mb-3 border"
									style={{
										borderColor:
											"color-mix(in srgb, var(--color-primary) 18%, transparent)",
										background:
											"color-mix(in srgb, var(--color-primary) 10%, transparent)",
										color:
											"var(--color-primary-readable, var(--color-primary))",
									}}
								>
									<span className="w-2 h-2 rounded-full bg-green-500" />
									{tpr("usersOnline", { count: online })}
								</div>
								<h1
									className="text-xl font-black"
									style={{
										color: "var(--color-text-readable)",
										fontFamily: "var(--font-nunito)",
									}}
								>
									{tpr("title")} — {hotelName}
								</h1>
								<p
									className="text-xs mt-1 mx-auto max-w-[200px] leading-relaxed"
									style={{ color: "var(--color-text-muted)" }}
								>
									{th("tagline")}
								</p>
							</div>
						</div>

						{recentUsers.length > 0 && (
							<SectionCard
								title={tpr("whoIsOnline")}
								icon="/assets/images/icons/navigation/goody.png"
								bodyClassName="p-4"
							>
								<div className="grid grid-cols-4 gap-1.5">
									{recentUsers.map((u) => (
										<div
											key={u.username}
											className="flex flex-col items-center gap-0.5 p-1.5 rounded-lg"
											style={{
												background:
													"color-mix(in srgb, var(--color-primary) 4%, transparent)",
											}}
										>
											<UserAvatarThumbnail
												figure={u.look}
												alt=""
												options={{ direction: 2 }}
												className="rounded-md"
											/>
											<span
												className="text-[8px] font-bold truncate w-full text-center leading-tight"
												style={{ color: "var(--color-text-readable)" }}
											>
												{u.username}
											</span>
										</div>
									))}
								</div>
							</SectionCard>
						)}

						{latestUsers.length > 0 && (
							<SectionCard
								title="Newest citizens"
								icon="/assets/images/icons/friends.png"
								bodyClassName="p-4"
							>
								<div className="grid grid-cols-4 gap-1.5">
									{latestUsers.map((u) => (
										<div
											key={u.username}
											className="flex flex-col items-center gap-0.5 p-1.5 rounded-lg"
											style={{
												background:
													"color-mix(in srgb, var(--color-primary) 4%, transparent)",
											}}
										>
											<UserAvatarThumbnail
												figure={u.look}
												alt=""
												options={{ direction: 2 }}
												className="rounded-md"
											/>
											<span
												className="text-[10px] font-bold truncate w-full text-center leading-tight"
												style={{ color: "var(--color-text-readable)" }}
											>
												{u.username}
											</span>
										</div>
									))}
								</div>
							</SectionCard>
						)}

						<p
							className="text-xs text-center"
							style={{ color: "var(--color-text-muted)" }}
						>
							{tpr("alreadyHaveAccountPre")}{" "}
							<Link
								href="/login"
								className="font-extrabold hover:underline"
								style={{
									color: "var(--color-primary-readable, var(--color-primary))",
								}}
							>
								{tpr("alreadyHaveAccountLink")}
							</Link>
						</p>
					</div>

					{/* Right: form */}
					<div className="flex-1">
						<SectionCard
							title={tpr("title")}
							icon="/assets/images/icons/navigation/me.png"
							bodyClassName="p-6"
						>
							<p
								className="text-sm mb-6"
								style={{ color: "var(--color-text-muted)" }}
							>
								{tpr("subtitle")}
							</p>
							<RegisterForm
								hotelName={hotelName}
								captcha={{
									provider: cfg.provider,
									siteKey: cfg.siteKey || undefined,
								}}
								nonce={nonce}
							/>
						</SectionCard>
					</div>
				</div>
			</Reveal>
		</div>
	);
}