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+import toDate from "../toDate/index.js";
+import requiredArgs from "../_lib/requiredArgs/index.js";
+/**
+ * @name areIntervalsOverlapping
+ * @category Interval Helpers
+ * @summary Is the given time interval overlapping with another time interval?
+ *
+ * @description
+ * Is the given time interval overlapping with another time interval? Adjacent intervals do not count as overlapping.
+ *
+ * @param {Interval} intervalLeft - the first interval to compare. See [Interval]{@link https://date-fns.org/docs/Interval}
+ * @param {Interval} intervalRight - the second interval to compare. See [Interval]{@link https://date-fns.org/docs/Interval}
+ * @param {Object} [options] - the object with options
+ * @param {Boolean} [options.inclusive=false] - whether the comparison is inclusive or not
+ * @returns {Boolean} whether the time intervals are overlapping
+ * @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:
+ * areIntervalsOverlapping(
+ *   { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
+ *   { start: new Date(2014, 0, 17), end: new Date(2014, 0, 21) }
+ * )
+ * //=> true
+ *
+ * @example
+ * // For non-overlapping time intervals:
+ * areIntervalsOverlapping(
+ *   { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
+ *   { start: new Date(2014, 0, 21), end: new Date(2014, 0, 22) }
+ * )
+ * //=> false
+ *
+ * @example
+ * // For adjacent time intervals:
+ * areIntervalsOverlapping(
+ *   { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
+ *   { start: new Date(2014, 0, 20), end: new Date(2014, 0, 30) }
+ * )
+ * //=> false
+ *
+ * @example
+ * // Using the inclusive option:
+ * areIntervalsOverlapping(
+ *   { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
+ *   { start: new Date(2014, 0, 20), end: new Date(2014, 0, 24) }
+ * )
+ * //=> false
+ * areIntervalsOverlapping(
+ *   { start: new Date(2014, 0, 10), end: new Date(2014, 0, 20) },
+ *   { start: new Date(2014, 0, 20), end: new Date(2014, 0, 24) },
+ *   { inclusive: true }
+ * )
+ * //=> true
+ */
+export default function areIntervalsOverlapping(intervalLeft, intervalRight, options) {
+  requiredArgs(2, arguments);
+  var leftStartTime = toDate(intervalLeft === null || intervalLeft === void 0 ? void 0 : intervalLeft.start).getTime();
+  var leftEndTime = toDate(intervalLeft === null || intervalLeft === void 0 ? void 0 : intervalLeft.end).getTime();
+  var rightStartTime = toDate(intervalRight === null || intervalRight === void 0 ? void 0 : intervalRight.start).getTime();
+  var rightEndTime = toDate(intervalRight === null || intervalRight === void 0 ? void 0 : 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');
+  }
+  if (options !== null && options !== void 0 && options.inclusive) {
+    return leftStartTime <= rightEndTime && rightStartTime <= leftEndTime;
+  }
+  return leftStartTime < rightEndTime && rightStartTime < leftEndTime;
+}
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