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-"use strict";
-
-var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
-Object.defineProperty(exports, "__esModule", {
- value: true
-});
-exports.default = getOverlappingDaysInIntervals;
-var _index = _interopRequireDefault(require("../toDate/index.js"));
-var _index2 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
-var MILLISECONDS_IN_DAY = 24 * 60 * 60 * 1000;
-
-/**
- * @name getOverlappingDaysInIntervals
- * @category Interval Helpers
- * @summary Get the number of days that overlap in two time intervals
- *
- * @description
- * Get the number of days that overlap in two time intervals
- *
- * @param {Interval} intervalLeft - the first interval to compare. See [Interval]{@link docs/Interval}
- * @param {Interval} intervalRight - the second interval to compare. See [Interval]{@link docs/Interval}
- * @returns {Number} the number of days that overlap in two time intervals
- * @throws {TypeError} 2 arguments required
- * @throws {RangeError} The start of an interval cannot be after its end
- * @throws {RangeError} Date in interval cannot be `Invalid Date`
- *
- * @example
- * // For overlapping time intervals adds 1 for each started overlapping day:
- * getOverlappingDaysInIntervals(
- * { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
- * { start: new Date(2014, 0, 17), end: new Date(2014, 0, 21) }
- * )
- * //=> 3
- *
- * @example
- * // For non-overlapping time intervals returns 0:
- * getOverlappingDaysInIntervals(
- * { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
- * { start: new Date(2014, 0, 21), end: new Date(2014, 0, 22) }
- * )
- * //=> 0
- */
-
-function getOverlappingDaysInIntervals(dirtyIntervalLeft, dirtyIntervalRight) {
- (0, _index2.default)(2, arguments);
- var intervalLeft = dirtyIntervalLeft || {};
- var intervalRight = dirtyIntervalRight || {};
- var leftStartTime = (0, _index.default)(intervalLeft.start).getTime();
- var leftEndTime = (0, _index.default)(intervalLeft.end).getTime();
- var rightStartTime = (0, _index.default)(intervalRight.start).getTime();
- var rightEndTime = (0, _index.default)(intervalRight.end).getTime();
-
- // Throw an exception if start date is after end date or if any date is `Invalid Date`
- if (!(leftStartTime <= leftEndTime && rightStartTime <= rightEndTime)) {
- throw new RangeError('Invalid interval');
- }
- var isOverlapping = leftStartTime < rightEndTime && rightStartTime < leftEndTime;
- if (!isOverlapping) {
- return 0;
- }
- var overlapStartDate = rightStartTime < leftStartTime ? leftStartTime : rightStartTime;
- var overlapEndDate = rightEndTime > leftEndTime ? leftEndTime : rightEndTime;
- var differenceInMs = overlapEndDate - overlapStartDate;
- return Math.ceil(differenceInMs / MILLISECONDS_IN_DAY);
-}
-module.exports = exports.default; \ No newline at end of file
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