/**
 * @name ranges-merge
 * @fileoverview Merge and sort string index ranges
 * @version 7.1.0
 * @author Roy Revelt, Codsen Ltd
 * @license MIT
 * {@link https://codsen.com/os/ranges-merge/}
 */

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var _toConsumableArray = require('@babel/runtime/helpers/toConsumableArray');
var _objectSpread = require('@babel/runtime/helpers/objectSpread2');
var _typeof = require('@babel/runtime/helpers/typeof');
var rangesSort = require('ranges-sort');

function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

var _toConsumableArray__default = /*#__PURE__*/_interopDefaultLegacy(_toConsumableArray);
var _objectSpread__default = /*#__PURE__*/_interopDefaultLegacy(_objectSpread);
var _typeof__default = /*#__PURE__*/_interopDefaultLegacy(_typeof);

var version$1 = "7.1.0";

var version = version$1;
var defaults = {
  mergeType: 1,
  progressFn: null,
  joinRangesThatTouchEdges: true
};
function rMerge(arrOfRanges, originalOpts) {
  function isObj(something) {
    return something && _typeof__default['default'](something) === "object" && !Array.isArray(something);
  }
  if (!Array.isArray(arrOfRanges) || !arrOfRanges.length) {
    return null;
  }
  var opts;
  if (originalOpts) {
    if (isObj(originalOpts)) {
      opts = _objectSpread__default['default'](_objectSpread__default['default']({}, defaults), originalOpts);
      if (opts.progressFn && isObj(opts.progressFn) && !Object.keys(opts.progressFn).length) {
        opts.progressFn = null;
      } else if (opts.progressFn && typeof opts.progressFn !== "function") {
        throw new Error("ranges-merge: [THROW_ID_01] opts.progressFn must be a function! It was given of a type: \"".concat(_typeof__default['default'](opts.progressFn), "\", equal to ").concat(JSON.stringify(opts.progressFn, null, 4)));
      }
      if (opts.mergeType && +opts.mergeType !== 1 && +opts.mergeType !== 2) {
        throw new Error("ranges-merge: [THROW_ID_02] opts.mergeType was customised to a wrong thing! It was given of a type: \"".concat(_typeof__default['default'](opts.mergeType), "\", equal to ").concat(JSON.stringify(opts.mergeType, null, 4)));
      }
      if (typeof opts.joinRangesThatTouchEdges !== "boolean") {
        throw new Error("ranges-merge: [THROW_ID_04] opts.joinRangesThatTouchEdges was customised to a wrong thing! It was given of a type: \"".concat(_typeof__default['default'](opts.joinRangesThatTouchEdges), "\", equal to ").concat(JSON.stringify(opts.joinRangesThatTouchEdges, null, 4)));
      }
    } else {
      throw new Error("emlint: [THROW_ID_03] the second input argument must be a plain object. It was given as:\n".concat(JSON.stringify(originalOpts, null, 4), " (type ").concat(_typeof__default['default'](originalOpts), ")"));
    }
  } else {
    opts = _objectSpread__default['default']({}, defaults);
  }
  var filtered = arrOfRanges
  .filter(function (range) {
    return range;
  }).map(function (subarr) {
    return _toConsumableArray__default['default'](subarr);
  }).filter(
  function (rangeArr) {
    return rangeArr[2] !== undefined || rangeArr[0] !== rangeArr[1];
  });
  var sortedRanges;
  var lastPercentageDone;
  var percentageDone;
  if (opts.progressFn) {
    sortedRanges = rangesSort.rSort(filtered, {
      progressFn: function progressFn(percentage) {
        percentageDone = Math.floor(percentage / 5);
        if (percentageDone !== lastPercentageDone) {
          lastPercentageDone = percentageDone;
          opts.progressFn(percentageDone);
        }
      }
    });
  } else {
    sortedRanges = rangesSort.rSort(filtered);
  }
  if (!sortedRanges) {
    return null;
  }
  var len = sortedRanges.length - 1;
  for (var i = len; i > 0; i--) {
    if (opts.progressFn) {
      percentageDone = Math.floor((1 - i / len) * 78) + 21;
      if (percentageDone !== lastPercentageDone && percentageDone > lastPercentageDone) {
        lastPercentageDone = percentageDone;
        opts.progressFn(percentageDone);
      }
    }
    if (sortedRanges[i][0] <= sortedRanges[i - 1][0] || !opts.joinRangesThatTouchEdges && sortedRanges[i][0] < sortedRanges[i - 1][1] || opts.joinRangesThatTouchEdges && sortedRanges[i][0] <= sortedRanges[i - 1][1]) {
      sortedRanges[i - 1][0] = Math.min(sortedRanges[i][0], sortedRanges[i - 1][0]);
      sortedRanges[i - 1][1] = Math.max(sortedRanges[i][1], sortedRanges[i - 1][1]);
      if (sortedRanges[i][2] !== undefined && (sortedRanges[i - 1][0] >= sortedRanges[i][0] || sortedRanges[i - 1][1] <= sortedRanges[i][1])) {
        if (sortedRanges[i - 1][2] !== null) {
          if (sortedRanges[i][2] === null && sortedRanges[i - 1][2] !== null) {
            sortedRanges[i - 1][2] = null;
          } else if (sortedRanges[i - 1][2] != null) {
            if (+opts.mergeType === 2 && sortedRanges[i - 1][0] === sortedRanges[i][0]) {
              sortedRanges[i - 1][2] = sortedRanges[i][2];
            } else {
              sortedRanges[i - 1][2] += sortedRanges[i][2];
            }
          } else {
            sortedRanges[i - 1][2] = sortedRanges[i][2];
          }
        }
      }
      sortedRanges.splice(i, 1);
      i = sortedRanges.length;
    }
  }
  return sortedRanges.length ? sortedRanges : null;
}

exports.defaults = defaults;
exports.rMerge = rMerge;
exports.version = version;