import { useTranslation } from "next-i18next";

import Container from "components/services/widget/container";
import Block from "components/services/widget/block";
import useWidgetAPI from "utils/proxy/use-widget-api";

function calcRunning(total, current) {
  return current.status === "running" ? total + 1 : total;
}

export default function Component({ service }) {
  const { t } = useTranslation();

  const { widget } = service;

  const { data: clusterData, error: clusterError } = useWidgetAPI(widget, "cluster/resources");

  if (clusterError) {
    return <Container service={service} error={clusterError} />;
  }

  if (!clusterData || !clusterData.data) {
    return (
      <Container service={service}>
        <Block label="proxmox.vms" />
        <Block label="proxmox.lxc" />
        <Block label="resources.cpu" />
        <Block label="resources.mem" />
      </Container>
    );
  }

  const { data } = clusterData;
  const vms =
    data.filter(
      (item) => item.type === "qemu" && item.template === 0 && (widget.node === undefined || widget.node === item.node),
    ) || [];
  const lxc =
    data.filter(
      (item) => item.type === "lxc" && item.template === 0 && (widget.node === undefined || widget.node === item.node),
    ) || [];
  const nodes =
    data.filter(
      (item) =>
        item.type === "node" && item.status === "online" && (widget.node === undefined || widget.node === item.node),
    ) || [];
  const runningVMs = vms.reduce(calcRunning, 0);
  const runningLXC = lxc.reduce(calcRunning, 0);

  if (nodes.length === 0) {
    return (
      <Container service={service}>
        <Block label="proxmox.vms" value={`${runningVMs} / ${vms.length}`} />
        <Block label="proxmox.lxc" value={`${runningLXC} / ${lxc.length}`} />
        <Block label="resources.cpu" />
        <Block label="resources.mem" />
      </Container>
    );
  }

  const maxMemory = nodes.reduce((sum, n) => n.maxmem + sum, 0);
  const usedMemory = nodes.reduce((sum, n) => n.mem + sum, 0);
  const maxCpu = nodes.reduce((sum, n) => n.maxcpu + sum, 0);
  const usedCpu = nodes.reduce((sum, n) => n.cpu * n.maxcpu + sum, 0);

  return (
    <Container service={service}>
      <Block label="proxmox.vms" value={`${runningVMs} / ${vms.length}`} />
      <Block label="proxmox.lxc" value={`${runningLXC} / ${lxc.length}`} />
      <Block label="resources.cpu" value={t("common.percent", { value: (usedCpu / maxCpu) * 100 })} />
      <Block label="resources.mem" value={t("common.percent", { value: (usedMemory / maxMemory) * 100 })} />
    </Container>
  );
}