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100 lines
3.4 KiB
Objective-C
100 lines
3.4 KiB
Objective-C
//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "DateUtil.h"
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#import <SignalMessaging/NSString+OWS.h>
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#import <SignalServiceKit/NSDate+OWS.h>
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NS_ASSUME_NONNULL_BEGIN
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static NSString *const DATE_FORMAT_WEEKDAY = @"EEEE";
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@implementation DateUtil
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+ (NSDateFormatter *)dateFormatter {
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static NSDateFormatter *formatter;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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formatter = [NSDateFormatter new];
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[formatter setLocale:[NSLocale currentLocale]];
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[formatter setTimeStyle:NSDateFormatterNoStyle];
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[formatter setDateStyle:NSDateFormatterShortStyle];
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});
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return formatter;
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}
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+ (NSDateFormatter *)weekdayFormatter {
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static NSDateFormatter *formatter;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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formatter = [NSDateFormatter new];
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[formatter setLocale:[NSLocale currentLocale]];
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[formatter setDateFormat:DATE_FORMAT_WEEKDAY];
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});
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return formatter;
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}
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+ (NSDateFormatter *)timeFormatter {
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static NSDateFormatter *formatter;
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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formatter = [NSDateFormatter new];
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[formatter setLocale:[NSLocale currentLocale]];
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[formatter setTimeStyle:NSDateFormatterShortStyle];
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[formatter setDateStyle:NSDateFormatterNoStyle];
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});
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return formatter;
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}
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+ (BOOL)dateIsOlderThanOneDay:(NSDate *)date {
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return [[NSDate date] timeIntervalSinceDate:date] > kDayInterval;
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}
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+ (BOOL)dateIsOlderThanOneWeek:(NSDate *)date {
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return [[NSDate date] timeIntervalSinceDate:date] > kWeekInterval;
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}
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+ (BOOL)date:(NSDate *)date isEqualToDateIgnoringTime:(NSDate *)anotherDate {
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static const unsigned componentFlags = (NSCalendarUnitYear | NSCalendarUnitMonth | NSCalendarUnitDay);
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NSDateComponents *components1 = [[NSCalendar autoupdatingCurrentCalendar] components:componentFlags fromDate:date];
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NSDateComponents *components2 =
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[[NSCalendar autoupdatingCurrentCalendar] components:componentFlags fromDate:anotherDate];
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return ((components1.year == components2.year) && (components1.month == components2.month) &&
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(components1.day == components2.day));
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}
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+ (BOOL)dateIsToday:(NSDate *)date {
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return [self date:[NSDate date] isEqualToDateIgnoringTime:date];
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}
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+ (BOOL)dateIsYesterday:(NSDate *)date
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{
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NSDate *yesterday = [NSDate ows_dateWithMillisecondsSince1970:[NSDate ows_millisecondTimeStamp] - kDayInMs];
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return [self date:yesterday isEqualToDateIgnoringTime:date];
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}
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+ (NSString *)formatPastTimestampRelativeToNow:(uint64_t)pastTimestamp isRTL:(BOOL)isRTL
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{
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OWSCAssert(pastTimestamp > 0);
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uint64_t nowTimestamp = [NSDate ows_millisecondTimeStamp];
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BOOL isFutureTimestamp = pastTimestamp >= nowTimestamp;
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NSDate *pastDate = [NSDate ows_dateWithMillisecondsSince1970:pastTimestamp];
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NSString *dateString;
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if (isFutureTimestamp || [self dateIsToday:pastDate]) {
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dateString = NSLocalizedString(@"DATE_TODAY", @"The current day.");
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} else if ([self dateIsYesterday:pastDate]) {
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dateString = NSLocalizedString(@"DATE_YESTERDAY", @"The day before today.");
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} else {
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dateString = [[self dateFormatter] stringFromDate:pastDate];
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}
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return [[dateString rtlSafeAppend:@" " isRTL:isRTL] rtlSafeAppend:[[self timeFormatter] stringFromDate:pastDate]
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isRTL:isRTL];
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}
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@end
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NS_ASSUME_NONNULL_END
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