All files / modules/75-cf/components/PercentageRollout DistributionBar.tsx

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/*
 * Copyright 2021 Harness Inc. All rights reserved.
 * Use of this source code is governed by the PolyForm Shield 1.0.0 license
 * that can be found in the licenses directory at the root of this repository, also available at
 * https://polyformproject.org/wp-content/uploads/2020/06/PolyForm-Shield-1.0.0.txt.
 */
 
import React, { FC } from 'react'
import type { Variation } from 'services/cf'
import { CFVariationColors } from '@cf/constants'
 
import css from './DistributionBar.module.scss'
 
export interface DistributionSegment {
  variation: Variation
  weight: number
}
 
export interface DistributionBarProps {
  distributionSegments: DistributionSegment[]
}
 
const DistributionBar: FC<DistributionBarProps> = ({ distributionSegments }) => {
  const { parts: gradientParts, lastStop: endStop } = distributionSegments.reduce<{
    parts: string[]
    lastStop: number
  }>(
    ({ parts, lastStop }, distributionSegment, index) => {
      const color = CFVariationColors[index % CFVariationColors.length]
      const endPoint = lastStop + distributionSegment.weight
 
      parts.push(`${color} ${lastStop}%, ${color} ${endPoint}%`)
 
      return { parts, lastStop: endPoint }
    },
    {
      parts: [],
      lastStop: 0
    }
  )
 
  if (endStop < 100) {
    gradientParts.push(`rgba(0,0,0,0) ${endStop}%`)
  }
 
  return (
    <div
      className={css.distributionBar}
      style={
        endStop <= 100
          ? { backgroundImage: `linear-gradient(to right, ${gradientParts.join()})` }
          : { backgroundColor: 'var(--red-900)' }
      }
    />
  )
}
 
export default DistributionBar