'use strict';

const shared_createContext = require('../shared/createContext.cjs');
const shared_clamp = require('../shared/clamp.cjs');

function getNextSortedValues(prevValues = [], nextValue, atIndex) {
  const nextValues = [...prevValues];
  nextValues[atIndex] = nextValue;
  return nextValues.sort((a, b) => a - b);
}
function convertValueToPercentage(value, min, max) {
  const maxSteps = max - min;
  const percentPerStep = 100 / maxSteps;
  const percentage = percentPerStep * (value - min);
  return shared_clamp.clamp(percentage, 0, 100);
}
function getLabel(index, totalValues) {
  if (totalValues > 2)
    return `Value ${index + 1} of ${totalValues}`;
  else if (totalValues === 2)
    return ["Minimum", "Maximum"][index];
  else
    return void 0;
}
function getClosestValueIndex(values, nextValue) {
  if (values.length === 1)
    return 0;
  const distances = values.map((value) => Math.abs(value - nextValue));
  const closestDistance = Math.min(...distances);
  return distances.indexOf(closestDistance);
}
function getThumbInBoundsOffset(width, left, direction) {
  const halfWidth = width / 2;
  const halfPercent = 50;
  const offset = linearScale([0, halfPercent], [0, halfWidth]);
  return (halfWidth - offset(left) * direction) * direction;
}
function getStepsBetweenValues(values) {
  return values.slice(0, -1).map((value, index) => values[index + 1] - value);
}
function hasMinStepsBetweenValues(values, minStepsBetweenValues) {
  if (minStepsBetweenValues > 0) {
    const stepsBetweenValues = getStepsBetweenValues(values);
    const actualMinStepsBetweenValues = Math.min(...stepsBetweenValues);
    return actualMinStepsBetweenValues >= minStepsBetweenValues;
  }
  return true;
}
function linearScale(input, output) {
  return (value) => {
    if (input[0] === input[1] || output[0] === output[1])
      return output[0];
    const ratio = (output[1] - output[0]) / (input[1] - input[0]);
    return output[0] + ratio * (value - input[0]);
  };
}
function getDecimalCount(value) {
  return (String(value).split(".")[1] || "").length;
}
function roundValue(value, decimalCount) {
  const rounder = 10 ** decimalCount;
  return Math.round(value * rounder) / rounder;
}
const PAGE_KEYS = ["PageUp", "PageDown"];
const ARROW_KEYS = ["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"];
const BACK_KEYS = {
  "from-left": ["Home", "PageDown", "ArrowDown", "ArrowLeft"],
  "from-right": ["Home", "PageDown", "ArrowDown", "ArrowRight"],
  "from-bottom": ["Home", "PageDown", "ArrowDown", "ArrowLeft"],
  "from-top": ["Home", "PageUp", "ArrowUp", "ArrowLeft"]
};
const [injectSliderOrientationContext, provideSliderOrientationContext] = shared_createContext.createContext(["SliderVertical", "SliderHorizontal"]);

exports.ARROW_KEYS = ARROW_KEYS;
exports.BACK_KEYS = BACK_KEYS;
exports.PAGE_KEYS = PAGE_KEYS;
exports.convertValueToPercentage = convertValueToPercentage;
exports.getClosestValueIndex = getClosestValueIndex;
exports.getDecimalCount = getDecimalCount;
exports.getLabel = getLabel;
exports.getNextSortedValues = getNextSortedValues;
exports.getThumbInBoundsOffset = getThumbInBoundsOffset;
exports.hasMinStepsBetweenValues = hasMinStepsBetweenValues;
exports.injectSliderOrientationContext = injectSliderOrientationContext;
exports.linearScale = linearScale;
exports.provideSliderOrientationContext = provideSliderOrientationContext;
exports.roundValue = roundValue;
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