import { redirect } from "next/navigation";
import { Prisma } from "@/generated/prisma/client";
import { canAccess, getAdminContext, PERMS } from "@/lib/permissions";
import { prisma } from "@/lib/prisma";
import { fetchEmulatorRankSummaries } from "@/lib/services/permission-ranks";
import { PermissionsList } from "./permissions-list";

export default async function PermissionsPage({
	searchParams,
}: {
	params: Promise<{ locale: string }>;
	searchParams?: Promise<{ from?: string }>;
}) {
	const { session, permissions } = await getAdminContext();
	if (!canAccess(permissions, PERMS.PERMISSIONS_MANAGE, session.user.rank)) {
		redirect("/admin");
	}

	const sp = (await searchParams) ?? {};
	const fromHousekeeping = sp.from === "housekeeping";

	const ranks = await fetchEmulatorRankSummaries(prisma);

	// User counts per rank
	const rawCounts: { rank: number; cnt: number }[] = await prisma.$queryRaw(
		Prisma.sql`SELECT \`rank\`, COUNT(*) as cnt FROM users GROUP BY \`rank\``,
	);
	const countMap: Record<number, number> = {};
	for (const row of rawCounts) {
		countMap[Number(row.rank)] = Number(row.cnt);
	}

	const ranksWithCounts = ranks.map((rank) => ({
		...rank,
		userCount: countMap[rank.id] ?? 0,
	}));

	return (
		<PermissionsList
			ranks={ranksWithCounts}
			fromHousekeeping={fromHousekeeping}
		/>
	);
}