@helpwave/hightide/dist/util/array.mjs

helpwave's component and theming library

// src/util/array.ts
var equalSizeGroups = (array, groupSize) => {
  if (groupSize <= 0) {
    console.warn(`group size should be greater than 0: groupSize = ${groupSize}`);
    return [[...array]];
  }
  const groups = [];
  for (let i = 0; i < array.length; i += groupSize) {
    groups.push(array.slice(i, Math.min(i + groupSize, array.length)));
  }
  return groups;
};
var defaultRangeOptions = {
  allowEmptyRange: false,
  stepSize: 1,
  exclusiveStart: false,
  exclusiveEnd: true
};
var range = (endOrRange, options) => {
  const { allowEmptyRange, stepSize, exclusiveStart, exclusiveEnd } = { ...defaultRangeOptions, ...options };
  let start = 0;
  let end;
  if (typeof endOrRange === "number") {
    end = endOrRange;
  } else {
    start = endOrRange[0];
    end = endOrRange[1];
  }
  if (!exclusiveEnd) {
    end -= 1;
  }
  if (exclusiveStart) {
    start += 1;
  }
  if (end - 1 < start) {
    if (!allowEmptyRange) {
      console.warn(`range: end (${end}) < start (${start}) should be allowed explicitly, set options.allowEmptyRange to true`);
    }
    return [];
  }
  return Array.from({ length: end - start }, (_, index) => index * stepSize + start);
};
var closestMatch = (list, firstCloser) => {
  return list.reduce((item1, item2) => {
    return firstCloser(item1, item2) ? item1 : item2;
  });
};
var getNeighbours = (list, item, neighbourDistance = 2) => {
  const index = list.indexOf(item);
  const totalItems = neighbourDistance * 2 + 1;
  if (list.length < totalItems) {
    console.warn("List is to short");
    return list;
  }
  if (index === -1) {
    console.error("item not found in list");
    return list.splice(0, totalItems);
  }
  let start = index - neighbourDistance;
  if (start < 0) {
    start += list.length;
  }
  const end = (index + neighbourDistance + 1) % list.length;
  const result = [];
  let ignoreOnce = list.length === totalItems;
  for (let i = start; i !== end || ignoreOnce; i = (i + 1) % list.length) {
    result.push(list[i]);
    if (end === i && ignoreOnce) {
      ignoreOnce = false;
    }
  }
  return result;
};
var createLoopingListWithIndex = (list, startIndex = 0, length = 0, forwards = true) => {
  if (length < 0) {
    console.warn(`createLoopingList: length must be >= 0, given ${length}`);
  } else if (length === 0) {
    length = list.length;
  }
  const returnList = [];
  if (forwards) {
    for (let i = startIndex; returnList.length < length; i = (i + 1) % list.length) {
      returnList.push([i, list[i]]);
    }
  } else {
    for (let i = startIndex; returnList.length < length; i = i === 0 ? i = list.length - 1 : i - 1) {
      returnList.push([i, list[i]]);
    }
  }
  return returnList;
};
var createLoopingList = (list, startIndex = 0, length = 0, forwards = true) => {
  return createLoopingListWithIndex(list, startIndex, length, forwards).map(([_, item]) => item);
};
var ArrayUtil = {
  unique: (list) => {
    const seen = /* @__PURE__ */ new Set();
    return list.filter((item) => {
      if (seen.has(item)) {
        return false;
      }
      seen.add(item);
      return true;
    });
  },
  difference: (list, removeList) => {
    const remove = new Set(removeList);
    return list.filter((item) => !remove.has(item));
  }
};
export {
  ArrayUtil,
  closestMatch,
  createLoopingList,
  createLoopingListWithIndex,
  equalSizeGroups,
  getNeighbours,
  range
};
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