import Link from "next/link";
import { getTranslations } from "next-intl/server";
import {
	deletePermission,
	upsertPermission,
} from "@/actions/admin-housekeeping";
import { prisma } from "@/lib/prisma";

export const dynamic = "force-dynamic";

export default async function AdminHousekeeping({
	searchParams,
}: {
	searchParams: Promise<{ q?: string; mode?: "manage" | "import" }>;
}) {
	const t = await getTranslations("pages.admin.housekeeping");

	const sp = await searchParams;
	const q = (sp.q ?? "").trim();
	const mode = sp.mode === "import" ? "import" : "manage";

	let permissions: Awaited<
		ReturnType<typeof prisma.websiteHousekeepingPermissions.findMany>
	> = [];
	try {
		permissions = await prisma.websiteHousekeepingPermissions.findMany({
			orderBy: [{ permission: "asc" }],
		});
	} catch {
		permissions = [];
	}

	const filtered = q
		? permissions.filter((p) =>
				p.permission.toLowerCase().includes(q.toLowerCase()),
			)
		: permissions;

	const ranks = permissions.map((p) => p.minRank);
	const maxRank = ranks.length ? Math.max(...ranks) : 0;
	const totalMin = ranks.reduce((sum, r) => sum + r, 0);

	const selectedIds = new Set<number>();
	if (mode === "import") {
		const importRaw = String(sp.q ?? "");
		if (importRaw) {
			const importIds = importRaw
				.split(",")
				.map((i) => Number(i.trim()))
				.filter((i) => !Number.isNaN(i));
			importIds.forEach((id) => {
				selectedIds.add(id);
			});
		}
	}

	return (
		<main>
			<div className="flex items-center gap-3 mb-6">
				<div className="w-10 h-10 rounded-xl bg-gradient-to-br from-[var(--admin-accent)]/20 to-[var(--admin-accent)]/5 grid place-items-center">
					<span className="text-lg">🔑</span>
				</div>
				<div>
					<h1 className="m-0 text-xl font-extrabold text-[var(--admin-text)]">
						{t("title")}
					</h1>
					<p className="m-0 text-xs text-[var(--admin-text-muted)] mt-0.5">
						{t("subtitle")}
					</p>
				</div>
			</div>

			<div className="admin-stat-row">
				<span className="admin-stat-chip">
					{t("permissionsCount", { count: permissions.length })}
				</span>
				<span className="admin-stat-chip">
					{t("highestMinRank", { rank: maxRank })}
				</span>
				<span className="admin-stat-chip">
					{t("totalMinRank", { total: totalMin })}
				</span>
			</div>

			<div className="admin-filter-bar">
				<form className="flex gap-2 flex-1">
					<input
						name="q"
						defaultValue={q}
						placeholder={t("searchPermission")}
						className="flex-1 min-w-[200px]"
					/>
					<button type="submit" className="btn btn-primary">
						{t("search")}
					</button>
				</form>
				<Link
					href="/admin/housekeeping?mode=manage"
					className="btn btn-outline"
				>
					{t("manage")}
				</Link>
				<Link
					href="/admin/housekeeping?mode=import&form=selected_ids"
					className="btn btn-outline"
				>
					{t("importSelection")}
				</Link>
			</div>

			{mode === "manage" ? (
				<section>
					<h2 className="admin-section-title">{t("addPermission")}</h2>
					<form action={upsertPermission} className="admin-card">
						<div className="flex gap-2 flex-wrap">
							<input
								name="permission"
								placeholder={t("permissionKey")}
								required
								className="min-w-[200px]"
							/>
							<input
								name="minRank"
								type="number"
								min={0}
								placeholder={t("minRank")}
								required
								className="w-[110px]"
							/>
							<input
								name="description"
								placeholder={t("description")}
								className="flex-1 min-w-[160px]"
							/>
							<button type="submit" className="btn btn-primary">
								{t("save")}
							</button>
						</div>
					</form>
				</section>
			) : (
				<section>
					<h2 className="admin-section-title">{t("importPermissions")}</h2>
					<p className="text-xs text-[var(--admin-text-muted)] -mt-2 mb-3">
						{t("importHint")}
					</p>
					<form action={upsertPermission} className="admin-card">
						<div className="flex gap-2 flex-wrap">
							<input
								name="q"
								placeholder={t("importPlaceholder")}
								required
								className="flex-1 min-w-[200px]"
							/>
							<button type="submit" className="btn btn-primary">
								{t("import")}
							</button>
						</div>
					</form>
				</section>
			)}

			<section>
				<h2 className="admin-section-title">
					{t("permissions")}{" "}
					<span className="inline-block text-[0.72rem] font-bold px-2 py-0.5 rounded-full bg-[var(--admin-accent)]/18 text-[var(--admin-text)]">
						{filtered.length}
					</span>
				</h2>
				{filtered.length === 0 ? (
					<div className="admin-empty">{t("noPermissions")}</div>
				) : (
					<div className="overflow-x-auto">
						<table>
							<thead>
								<tr>
									<th className="w-[40px]">#</th>
									<th>{t("colPermission")}</th>
									<th>{t("colDescription")}</th>
									<th className="w-[200px]">{t("colMinRank")}</th>
									<th className="w-[80px]" />
								</tr>
							</thead>
							<tbody>
								{filtered.map((p, i) => (
									<tr
										key={String(p.id)}
										style={
											mode === "import" && selectedIds.has(i)
												? {
														backgroundColor:
															"color-mix(in srgb, var(--admin-accent) 5%, transparent)",
													}
												: {}
										}
									>
										<td className="muted" style={{ width: "40px" }}>
											{i + 1}
										</td>
										<td>
											<strong>{p.permission}</strong>
										</td>
										<td className="muted">{p.description ?? "—"}</td>
										<td>
											<form
												action={upsertPermission}
												style={{ display: "flex", gap: "0.5rem" }}
											>
												<input
													type="hidden"
													name="permission"
													value={p.permission}
												/>
												<input
													type="hidden"
													name="description"
													value={p.description ?? ""}
												/>
												<input
													name="minRank"
													type="number"
													min={0}
													defaultValue={p.minRank}
													style={{ width: 90 }}
												/>
												<button type="submit" className="btn btn-outline">
													{t("save")}
												</button>
											</form>
										</td>
										<td>
											<form action={deletePermission}>
												<input type="hidden" name="id" value={String(p.id)} />
												<button type="submit" className="btn btn-danger">
													✕
												</button>
											</form>
										</td>
									</tr>
								))}
							</tbody>
						</table>
					</div>
				)}
			</section>
		</main>
	);
}