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+//
+//  date.ts
+//  AppStoreKit
+//
+//  Created by Sam Vafaee on 10/25/17.
+//  Copyright (c) 2017 Apple Inc. All rights reserved.
+//
+import * as serverData from "../json-parsing/server-data";
+/**
+ * Returns the date representation for a string ignoring the time. For preorders, it
+ * is vital that any date string be passed through this before being used.
+ * @param dateString  The date string to parse
+ * @returns A date in local time zone.
+ */
+export function parseDateOmittingTimeFromString(dateString) {
+    // Sanity check
+    if (serverData.isNull(dateString) || dateString === "") {
+        return null;
+    }
+    // Only consider date
+    if (dateString.indexOf("T") !== -1) {
+        dateString = dateString.split("T")[0];
+    }
+    // This string replacement is needed to ensure midnight in the local time zone
+    // is used, rather than UTC-midnight.
+    return new Date(dateString.replace(/-/g, "/"));
+}
+/**
+ * Strips time from the given date and returns it as midnight UTC of the same day.
+ * @param date  Local date.
+ * @returns UTC date
+ */
+export function convertLocalDateToUTCMidnight(date) {
+    // Sanity check
+    if (serverData.isNull(date)) {
+        return null;
+    }
+    return new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()));
+}
+/**
+ * Returns the number of milliseconds from epoch to UTC midnight of the given date.
+ * @param date  Local date.
+ * @returns Milliseconds from epoch.
+ */
+export function millisecondsToUTCMidnightFromLocalDate(date) {
+    // Sanity check
+    if (serverData.isNull(date)) {
+        return null;
+    }
+    const utcDate = convertLocalDateToUTCMidnight(date);
+    if (serverData.isNull(utcDate)) {
+        return null;
+    }
+    return utcDate.getTime();
+}
+/**
+ * Removes the time portion from the given date and returns it as midnight of the same day.
+ * @param date  Local date
+ * @returns Local date
+ */
+export function convertLocalDateToLocalMidnight(date) {
+    // Sanity check
+    if (serverData.isNull(date)) {
+        return null;
+    }
+    const midnight = new Date(date);
+    midnight.setHours(0, 0, 0, 0);
+    return midnight;
+}
+/**
+ * Sets the minutes, seconds and milliseconds of the given date to 0.
+ * @param date  Local date
+ * @returns Local date
+ */
+export function convertLocalDateByFlooringToHour(date) {
+    // Sanity check
+    if (serverData.isNull(date)) {
+        return null;
+    }
+    return dateFlooredToHour(date);
+}
+/**
+ * Creates a new date with the minutes, seconds and milliseconds of the given date set to 0.
+ * @param date The date to remove minutes, seconds, and milliseconds from.
+ * @returns The new date with minutes, seconds, and milliseconds removed using local device time zone.
+ */
+export function dateFlooredToHour(date) {
+    const dateCopy = new Date(date.getTime());
+    dateCopy.setMinutes(0);
+    dateCopy.setSeconds(0);
+    dateCopy.setMilliseconds(0);
+    return dateCopy;
+}
+/**
+ * Returns the number of hours between two dates, or null if either date is null.
+ * @param fromDate The date to calculate from.
+ * @param toDate The date to calculate to.
+ */
+export function numberOfHoursBetween(fromDate, toDate) {
+    // Sanity check
+    if (serverData.isNull(fromDate) || serverData.isNull(toDate)) {
+        return null;
+    }
+    return Math.ceil((toDate.getTime() - dateFlooredToHour(fromDate).getTime()) / (60 * 60 * 1000));
+}
+/**
+ * Returns the number of days between two dates, or null if either date is null.
+ * @param fromDate The date to calculate from.
+ * @param toDate The date to calculate to.
+ */
+export function numberOfDaysBetween(fromDate, toDate) {
+    // Sanity check
+    if (serverData.isNull(fromDate) || serverData.isNull(toDate)) {
+        return null;
+    }
+    return Math.floor((toDate.getTime() - fromDate.getTime()) / (60 * 60 * 1000 * 24));
+}
+/**
+ * Whether or not two dates occur on the same day.
+ * @param date A date that will be compared to the second input.
+ * @param otherDate A date that will be compared to the first input.
+ */
+export function areLocalDatesSameDay(date, otherDate) {
+    var _a, _b;
+    return ((_a = convertLocalDateToLocalMidnight(date)) === null || _a === void 0 ? void 0 : _a.getTime()) === ((_b = convertLocalDateToLocalMidnight(otherDate)) === null || _b === void 0 ? void 0 : _b.getTime());
+}
+//# sourceMappingURL=date-util.js.map
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