metamask-extension/ui/components/app/edit-gas-fee-popover/network-statistics/status-slider/status-slider.js

import React from 'react';

import { NetworkCongestionThresholds } from '../../../../../../shared/constants/gas';
import { useGasFeeContext } from '../../../../../contexts/gasFee';
import { useI18nContext } from '../../../../../hooks/useI18nContext';
import { NetworkStabilityTooltip } from '../tooltips';

const GRADIENT_COLORS = [
  '#037DD6',
  '#1876C8',
  '#2D70BA',
  '#4369AB',
  '#57629E',
  '#6A5D92',
  '#805683',
  '#9A4D71',
  '#B44561',
  '#C54055',
  '#D73A49',
];

const determineStatusInfo = (givenNetworkCongestion) => {
  const networkCongestion = givenNetworkCongestion ?? 0.5;
  const colorIndex = Math.round(networkCongestion * 10);
  const color = GRADIENT_COLORS[colorIndex];
  const sliderTickValue = colorIndex * 10;

  if (networkCongestion >= NetworkCongestionThresholds.busy) {
    return {
      statusLabel: 'busy',
      tooltipLabel: 'highLowercase',
      color,
      sliderTickValue,
    };
  } else if (networkCongestion >= NetworkCongestionThresholds.stable) {
    return {
      statusLabel: 'stable',
      tooltipLabel: 'stableLowercase',
      color,
      sliderTickValue,
    };
  }
  return {
    statusLabel: 'notBusy',
    tooltipLabel: 'lowLowercase',
    color,
    sliderTickValue,
  };
};

const StatusSlider = () => {
  const t = useI18nContext();
  const { gasFeeEstimates } = useGasFeeContext();
  const statusInfo = determineStatusInfo(gasFeeEstimates.networkCongestion);

  return (
    <NetworkStabilityTooltip
      color={statusInfo.color}
      tooltipLabel={statusInfo.tooltipLabel}
    >
      <div className="status-slider">
        <div className="status-slider__arrow-container">
          <div
            className="status-slider__arrow-border"
            style={{
              marginLeft: `${statusInfo.sliderTickValue}%`,
            }}
            data-testid="status-slider-arrow-border"
          >
            <div
              className="status-slider__arrow"
              style={{
                borderTopColor: statusInfo.color,
              }}
              data-testid="status-slider-arrow"
            />
          </div>
        </div>
        <div className="status-slider__line" />
        <div
          className="status-slider__label"
          style={{ color: statusInfo.color }}
          data-testid="status-slider-label"
        >
          {t(statusInfo.statusLabel)}
        </div>
      </div>
    </NetworkStabilityTooltip>
  );
};

export default StatusSlider;