import { useTranslation } from "next-i18next/pages";
import dynamic from "next/dynamic";
import { useCallback } from "react";

import Block from "../components/block";
import Container from "../components/container";

import useDataPoints from "./use-data-points";

import { parseVersionForUrl } from "utils/proxy/api-helpers";
import useWidgetAPI from "utils/proxy/use-widget-api";

const ChartDual = dynamic(() => import("../components/chart_dual"), { ssr: false });

const defaultPointsLimit = 15;
const defaultInterval = (isChart) => (isChart ? 1000 : 5000);

export default function Component({ service }) {
  const { t } = useTranslation();
  const { widget } = service;
  const { chart, metric } = widget;
  const { refreshInterval = defaultInterval(chart), pointsLimit = defaultPointsLimit, version = 3 } = widget;
  const apiVersion = parseVersionForUrl(version, 3);

  const rxKey = apiVersion === 3 ? "rx" : "bytes_recv";
  const txKey = apiVersion === 3 ? "tx" : "bytes_sent";

  const [, interfaceName] = metric.split(":");

  const [dataPoints, addDataPoint] = useDataPoints(pointsLimit, { a: 0, b: 0 });

  const handleData = useCallback(
    (newData) => {
      if (!newData?.error) {
        const interfaceData = newData.find((item) => item[item.key] === interfaceName);

        if (interfaceData) {
          addDataPoint({
            a: (interfaceData[rxKey] * 8) / interfaceData.time_since_update,
            b: (interfaceData[txKey] * 8) / interfaceData.time_since_update,
          });
        }
      }
    },
    [addDataPoint, interfaceName, rxKey, txKey],
  );

  const { data, error } = useWidgetAPI(
    widget,
    `${apiVersion}/network`,
    {
      refreshInterval: Math.max(defaultInterval(chart), refreshInterval),
    },
    { onSuccess: handleData },
  );

  if (error || (data && data.error)) {
    const finalError = error || data.error;
    return <Container error={finalError} widget={widget} />;
  }

  if (!data) {
    return (
      <Container chart={chart}>
        <Block position="bottom-3 left-3">-</Block>
      </Container>
    );
  }

  const interfaceData = data.find((item) => item[item.key] === interfaceName);

  if (!interfaceData) {
    return (
      <Container chart={chart}>
        <Block position="bottom-3 left-3">-</Block>
      </Container>
    );
  }

  return (
    <Container chart={chart}>
      {chart && (
        <ChartDual
          dataPoints={dataPoints}
          label={[t("docker.rx"), t("docker.tx")]}
          formatter={(value) =>
            t("common.bitrate", {
              value,
              maximumFractionDigits: 0,
            })
          }
        />
      )}

      <Block position="bottom-3 left-3">
        {interfaceData && interfaceData.interface_name && chart && (
          <div className="text-xs opacity-50">{interfaceData.interface_name}</div>
        )}

        <div className="text-xs opacity-75">
          {t("common.bitrate", {
            value: (interfaceData[rxKey] * 8) / interfaceData.time_since_update,
            maximumFractionDigits: 0,
          })}{" "}
          {t("docker.rx")}
        </div>
      </Block>

      {!chart && (
        <Block position="top-3 right-3">
          {interfaceData && interfaceData.interface_name && (
            <div className="text-xs opacity-50">{interfaceData.interface_name}</div>
          )}
        </Block>
      )}

      <Block position="bottom-3 right-3">
        <div className="text-xs opacity-75">
          {t("common.bitrate", {
            value: (interfaceData[txKey] * 8) / interfaceData.time_since_update,
            maximumFractionDigits: 0,
          })}{" "}
          {t("docker.tx")}
        </div>
      </Block>
    </Container>
  );
}