import config from "@payload-config";
import { headers as nextHeaders } from "next/headers";
import { redirect } from "next/navigation";
import { getPayload } from "payload";
import type { Ticket } from "@/payload-types";
import { TicketsView } from "@/components/frontend/helpdesk/TicketsView";
import { hasPermission } from "@/utils/access-control/hasPermission";
import { LifeBuoyIcon } from "lucide-react";
import { getTicketVoteSummaries } from "@/lib/tickets/voteState";

export const metadata = {
  title: "Helpdesk: Polaris Task Force",
};

function HelpdeskDisabled() {
  return (
    <div className="mx-auto flex w-full max-w-2xl flex-col gap-4 p-5">
      <div className="flex flex-col gap-1">
        <div className="flex items-center gap-2">
          <LifeBuoyIcon className="size-5 text-muted-foreground" />
          <h1 className="text-lg font-semibold">Helpdesk</h1>
        </div>
        <p className="text-sm text-muted-foreground">
          The Helpdesk is currently disabled by a unit admin.
        </p>
      </div>
    </div>
  );
}

export default async function HelpdeskPage() {
  const headers = await nextHeaders();
  const payload = await getPayload({ config });
  const { user } = await payload.auth({
    headers,
    canSetHeaders: false,
  });

  if (!user) {
    const pathname = headers.get("x-invoke-path") || "/helpdesk";
    redirect(`/login?returnTo=${encodeURIComponent(pathname)}`);
  }

  const { helpdeskEnabled } = await payload.findGlobal({ slug: "game-rules" });
  if (!helpdeskEnabled) {
    return <HelpdeskDisabled />;
  }

  const ticketsRes = await payload.find({
    collection: "tickets",
    sort: "-updatedAt",
    limit: 200,
    depth: 2,
  });
  const tickets = ticketsRes.docs as unknown as Ticket[];
  const [isStaff, voteSummaries] = await Promise.all([
    hasPermission(payload, user, "tickets:staff"),
    getTicketVoteSummaries(
      payload,
      user.id,
      tickets.map((ticket) => ticket.id),
    ),
  ]);

  return (
    <div className="flex flex-col gap-6 p-5">
      <div className="flex flex-col gap-1">
        <div className="flex items-center gap-2">
          <LifeBuoyIcon className="size-5 text-muted-foreground" />
          <h1 className="text-lg font-semibold">Helpdesk</h1>
        </div>
        <p className="text-sm text-muted-foreground">Submit and track support requests.</p>
      </div>

      <TicketsView tickets={tickets} voteSummaries={voteSummaries} isStaff={isStaff} />
    </div>
  );
}