import { asc, desc, eq, gte } from "drizzle-orm";
import { getTranslations } from "next-intl/server";
import Link from "@/components/link";
import { ContentCard, EmptyState } from "@/components/public/ui";
import { db, User, WebsiteTeams } from "@/lib/db";
import { siteSettings } from "@/lib/services/site-settings";

export const metadata = { title: "Staff" };

type StaffMember = {
	username: string;
	look: string;
	rank: number;
	motto: string;
};

type Team = {
	id: string;
	rankName: string;
	badge: string | null;
	jobDescription: string | null;
	staffColor: string;
};

export default async function StaffPage() {
	const t = await getTranslations("pages.staff");
	const minStaffRank =
		Number(await siteSettings.get("min_staff_rank", "7")) || 7;

	// Independent queries — staff members and teams load concurrently.
	const [staff, teams] = await Promise.all([
		db
			.select({
				username: User.username,
				look: User.look,
				rank: User.rank,
				motto: User.motto,
			})
			.from(User)
			.where(gte(User.rank, minStaffRank))
			.orderBy(desc(User.rank), asc(User.username))
			.limit(100)
			.catch((): StaffMember[] => []),
		db
			.select({
				id: WebsiteTeams.id,
				rankName: WebsiteTeams.rankName,
				badge: WebsiteTeams.badge,
				jobDescription: WebsiteTeams.jobDescription,
				staffColor: WebsiteTeams.staffColor,
			})
			.from(WebsiteTeams)
			.where(eq(WebsiteTeams.hiddenRank, false))
			.orderBy(asc(WebsiteTeams.id))
			.then((rows) => rows.map((row) => ({ ...row, id: String(row.id) })))
			.catch((): Team[] => []),
	]);

	return (
		<main style={{ display: "grid", gap: "1.5rem" }}>
			<ContentCard icon="🛡️" title={t("title")} subtitle={t("subtitle")} />

			{teams.length > 0 ? (
				<ContentCard
					icon="⭐"
					title={t("ranksTitle")}
					subtitle={t("ranksSubtitle")}
				>
					<div className="card-grid sm-2 lg-3">
						{teams.map((team) => (
							<div key={team.id} className="card">
								<h3 style={{ margin: "0 0 0.25rem", color: team.staffColor }}>
									{team.rankName}
								</h3>
								{team.jobDescription ? (
									<p className="muted" style={{ margin: 0 }}>
										{team.jobDescription}
									</p>
								) : null}
							</div>
						))}
					</div>
				</ContentCard>
			) : null}

			<ContentCard
				icon="👥"
				title={t("membersTitle")}
				subtitle={
					staff.length === 0
						? t("membersEmptySubtitle")
						: t("membersSubtitle", { count: staff.length })
				}
				padded={staff.length === 0}
			>
				{staff.length === 0 ? (
					<EmptyState icon="🛡️">{t("emptyState")}</EmptyState>
				) : (
					<table>
						<thead>
							<tr>
								<th>{t("colUsername")}</th>
								<th>{t("colRank")}</th>
								<th>{t("colMotto")}</th>
							</tr>
						</thead>
						<tbody>
							{staff.map((u) => (
								<tr key={u.username}>
									<td>
										<Link href={`/u/${u.username}`}>{u.username}</Link>
									</td>
									<td>{u.rank}</td>
									<td className="muted">{u.motto || "—"}</td>
								</tr>
							))}
						</tbody>
					</table>
				)}
			</ContentCard>
		</main>
	);
}