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backend/node_modules/date-fns/differenceInBusinessDays/index.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = differenceInBusinessDays;
+var _index = _interopRequireDefault(require("../addDays/index.js"));
+var _index2 = _interopRequireDefault(require("../differenceInCalendarDays/index.js"));
+var _index3 = _interopRequireDefault(require("../isSameDay/index.js"));
+var _index4 = _interopRequireDefault(require("../isValid/index.js"));
+var _index5 = _interopRequireDefault(require("../isWeekend/index.js"));
+var _index6 = _interopRequireDefault(require("../toDate/index.js"));
+var _index7 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
+var _index8 = _interopRequireDefault(require("../_lib/toInteger/index.js"));
+/**
+ * @name differenceInBusinessDays
+ * @category Day Helpers
+ * @summary Get the number of business days between the given dates.
+ *
+ * @description
+ * Get the number of business day periods between the given dates.
+ * Business days being days that arent in the weekend.
+ * Like `differenceInCalendarDays`, the function removes the times from
+ * the dates before calculating the difference.
+ *
+ * @param {Date|Number} dateLeft - the later date
+ * @param {Date|Number} dateRight - the earlier date
+ * @returns {Number} the number of business days
+ * @throws {TypeError} 2 arguments required
+ *
+ * @example
+ * // How many business days are between
+ * // 10 January 2014 and 20 July 2014?
+ * const result = differenceInBusinessDays(
+ *   new Date(2014, 6, 20),
+ *   new Date(2014, 0, 10)
+ * )
+ * //=> 136
+ *
+ * // How many business days are between
+ * // 30 November 2021 and 1 November 2021?
+ * const result = differenceInBusinessDays(
+ *   new Date(2021, 10, 30),
+ *   new Date(2021, 10, 1)
+ * )
+ * //=> 21
+ *
+ * // How many business days are between
+ * // 1 November 2021 and 1 December 2021?
+ * const result = differenceInBusinessDays(
+ *   new Date(2021, 10, 1),
+ *   new Date(2021, 11, 1)
+ * )
+ * //=> -22
+ *
+ * // How many business days are between
+ * // 1 November 2021 and 1 November 2021 ?
+ * const result = differenceInBusinessDays(
+ *   new Date(2021, 10, 1),
+ *   new Date(2021, 10, 1)
+ * )
+ * //=> 0
+ */
+function differenceInBusinessDays(dirtyDateLeft, dirtyDateRight) {
+  (0, _index7.default)(2, arguments);
+  var dateLeft = (0, _index6.default)(dirtyDateLeft);
+  var dateRight = (0, _index6.default)(dirtyDateRight);
+  if (!(0, _index4.default)(dateLeft) || !(0, _index4.default)(dateRight)) return NaN;
+  var calendarDifference = (0, _index2.default)(dateLeft, dateRight);
+  var sign = calendarDifference < 0 ? -1 : 1;
+  var weeks = (0, _index8.default)(calendarDifference / 7);
+  var result = weeks * 5;
+  dateRight = (0, _index.default)(dateRight, weeks * 7);
+
+  // the loop below will run at most 6 times to account for the remaining days that don't makeup a full week
+  while (!(0, _index3.default)(dateLeft, dateRight)) {
+    // sign is used to account for both negative and positive differences
+    result += (0, _index5.default)(dateRight) ? 0 : sign;
+    dateRight = (0, _index.default)(dateRight, sign);
+  }
+  return result === 0 ? 0 : result;
+}
+module.exports = exports.default;