import { sanitizeRelayUrl, unixNow } from "@snort/shared";
import { EventKind, RequestBuilder } from "@snort/system";
import { useRequestBuilder } from "@snort/system-react";
import { useMemo } from "react";

import { findTag } from "@/Utils";
import { Day, MonitorRelays } from "@/Utils/Const";

import UptimeLabel from "./uptime-label";

export default function RelayUptime({ url }: { url: string }) {
  const sub = useMemo(() => {
    const u = sanitizeRelayUrl(url);
    if (!u) return;

    const rb = new RequestBuilder(`uptime`);
    rb.withFilter()
      .kinds([30_166 as EventKind])
      .tag("d", [u])
      .since(unixNow() - Day)
      .relay(MonitorRelays);
    return rb;
  }, [url]);

  const data = useRequestBuilder(sub);
  const myData = data.filter(a => findTag(a, "d") === url);
  const ping = myData.reduce(
    (acc, v) => {
      const read = findTag(v, "rtt-read");
      if (read) {
        acc.n += 1;
        acc.total += Number(read);
      }
      return acc;
    },
    {
      n: 0,
      total: 0,
    },
  );
  const avgPing = ping.total / ping.n;
  return <UptimeLabel avgPing={avgPing} />;
}