import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
import { Loader2, Tablet, Trash2 } from 'lucide-react';
import { useClient } from 'hooks/useClient';
import type { KioskDevice } from '../db/types';

/*
  Registered devices — yours, or everyone's if you are the owner. The server decides which; this panel does
  not ask, so a member cannot request somebody else's list by omitting a parameter.

  Enrolment itself is not here. Capturing a UDID needs a `.mobileconfig` served without a session and a
  callback the device posts to, and neither can exist until the platform can serve a plugin's route above
  the account gate. Until then this shows what the standalone service registered.
*/

const STATUS_TONE: Record<string, string> = {
  registered: 'bg-success/10 text-success',
  captured: 'bg-info/10 text-info',
  pending: 'bg-muted text-muted-foreground',
  failed: 'bg-destructive/10 text-destructive',
};

export const DevicesPanel = () => {
  const client = useClient();
  const queryClient = useQueryClient();

  const { data, isLoading } = useQuery({
    queryKey: ['kiosk', 'devices'],
    queryFn: () => client.get<{ devices: KioskDevice[] }>('/kiosk/devices'),
  });

  const remove = useMutation({
    mutationFn: (id: number) => client.delete(`/kiosk/devices/${id}`),
    onSuccess: () => queryClient.invalidateQueries({ queryKey: ['kiosk', 'devices'] }),
  });

  if (isLoading) {
    return (
      <div className="flex h-full items-center justify-center text-muted-foreground">
        <Loader2 className="h-4 w-4 animate-spin" />
      </div>
    );
  }

  const devices = data?.devices ?? [];

  return (
    <div className="h-full overflow-y-auto">
      <div className="sticky top-0 z-10 border-b border-border bg-muted px-4 py-2 text-xs font-semibold">
        Devices
      </div>

      {!devices.length ? (
        <div className="flex flex-col items-center justify-center gap-2 px-6 py-10 text-center text-sm text-muted-foreground">
          <Tablet className="h-7 w-7" />
          <span>No devices registered.</span>
          <span className="text-xs">
            A device is registered by installing an enrolment profile, which is not wired up yet.
          </span>
        </div>
      ) : (
        devices.map((device) => (
          <div key={device.id} className="group flex items-center gap-3 border-b border-border/60 px-4 py-3">
            <div className="min-w-0 flex-1">
              <div className="truncate text-sm font-medium">{device.label}</div>
              <div className="mt-0.5 flex flex-wrap items-center gap-x-2 gap-y-1 text-[11px] text-muted-foreground">
                <span className={`rounded px-1.5 py-0.5 font-medium ${STATUS_TONE[device.status] ?? 'bg-muted'}`}>
                  {device.status}
                </span>
                {device.product ? <span>{device.product}</span> : null}
                {device.osVersion ? <span>iOS {device.osVersion}</span> : null}
                {/* The UDID is deliberately not shown in full: it identifies a person's hardware, and the
                    whole reason artefacts stay private is that a `.ipa` leaks the full list of them. */}
                {device.udid ? <span className="tabular-nums">…{device.udid.slice(-6)}</span> : null}
                {device.failureReason ? (
                  <span className="text-destructive">{device.failureReason}</span>
                ) : null}
              </div>
            </div>
            <button
              type="button"
              onClick={() => remove.mutate(device.id)}
              title="Remove device"
              aria-label={`Remove ${device.label}`}
              className="shrink-0 cursor-pointer rounded p-1.5 text-muted-foreground opacity-0 transition-opacity hover:text-destructive group-hover:opacity-100 focus-visible:opacity-100"
            >
              <Trash2 className="h-3.5 w-3.5" />
            </button>
          </div>
        ))
      )}
    </div>
  );
};