import { notFound, redirect } from "next/navigation";
import { AdminBreadcrumb } from "@/components/admin/admin-breadcrumb";
import { canAccess, getAdminContext, PERMS } from "@/lib/permissions";
import { prisma } from "@/lib/prisma";
import { fetchEmulatorRankForEdit } from "@/lib/services/permission-ranks";
import { RankEditClient } from "./rank-edit-client";

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

	const rankId = parseInt(rawId, 10);
	if (Number.isNaN(rankId)) notFound();

	const rank = await fetchEmulatorRankForEdit(prisma, rankId);
	if (!rank) notFound();

	// Fetch users with this rank (limit 200)
	const users = await prisma.user.findMany({
		where: { rank: rankId },
		select: { id: true, username: true, look: true },
		orderBy: { username: "asc" },
		take: 200,
	});

	const totalUsers = await prisma.user.count({ where: { rank: rankId } });

	// Fetch all CMS permissions
	const allCmsPermissions = await prisma.aclPermission.findMany({
		orderBy: { slug: "asc" },
	});

	// Auto-create CMS role for rank >= 4
	let cmsRole: {
		id: number;
		slug: string;
		title: string;
		permissionSlugs: string[];
	} | null = null;

	if (rankId >= 4) {
		const role = await prisma.aclRole.upsert({
			where: { slug: `rank_${rankId}` },
			create: {
				slug: `rank_${rankId}`,
				title: rank.rank_name || `Rank ${rankId}`,
			},
			update: {},
			include: {
				rolePermissions: { include: { permission: true } },
			},
		});
		cmsRole = {
			id: role.id,
			slug: role.slug,
			title: role.title,
			permissionSlugs: role.rolePermissions.map((rp) => rp.permission.slug),
		};
	}

	return (
		<div className="space-y-6">
			<AdminBreadcrumb
				items={[
					{ label: "Permissions", href: "/admin/permissions" },
					{ label: rank.rank_name || `Rank ${rankId}` },
				]}
			/>
			<RankEditClient
				rank={rank}
				users={users}
				totalUsers={totalUsers}
				cmsRole={cmsRole}
				allCmsPermissions={allCmsPermissions}
			/>
		</div>
	);
}