// @flow strict

import type {
  ScoreBarColorMap,
  ScoreBarLabelMap,
} from '../../components/ScoreBar';


const getValidRange = (
  score: number,
  totalBars: number,
  keys: Array<string>,
): string => {
  const scorePercentage = (100 * score) / totalBars;
  for (const key of keys) {
    if (scorePercentage <= Number(key)) {
      return key;
    }
  }

  return [...keys].pop() || '';
};

export const getColorByScorePercentage = (
  totalBars: number,
  score: number,
  currentBarNumber: number,
  colorMap: ScoreBarColorMap,
): string => {
  if (score <= 0) {
    return colorMap.inactive;
  }
  const validRange = getValidRange(score, totalBars, Object.keys(colorMap));
  const validColor = colorMap[validRange];

  return currentBarNumber < score ? validColor : colorMap.inactive;
};

export const getLabelByScorePercentage = (
  score: number,
  totalBars: number,
  labelMap?: ScoreBarLabelMap,
): string => {
  if (!labelMap) {
    return '';
  }
  const validRange = getValidRange(score, totalBars, Object.keys(labelMap));
  const validLabel = labelMap[validRange];

  return validLabel || '';
};

export const SCORE_BAR_ERRORS = Object.freeze({
  INVALID_BAR_COUNT: {
    type: 'INVALID_BAR_COUNT',
    description: 'totalBars can not be less than 1',
  },
});