Analytics/NSDate+SFAnalytics.m

   1 /*
   2  * Copyright (c) 2017 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #import <Foundation/Foundation.h>
  25 #import "NSDate+SFAnalytics.h"
  26
  27 @implementation NSDate (SFAnalytics)
  28
  29 - (NSTimeInterval)bucketToRoundingFactor:(SFAnalyticsTimestampBucket)bucket
  30 {
  31     switch (bucket) {
  32         case SFAnalyticsTimestampBucketSecond:
  33             return 1;
  34         case SFAnalyticsTimestampBucketMinute:
  35             return 60;
  36         case SFAnalyticsTimestampBucketHour:
  37             return 60 * 60;
  38     }
  39 }
  40
  41 - (NSTimeInterval)timeIntervalSince1970WithBucket:(SFAnalyticsTimestampBucket)bucket
  42 {
  43     NSTimeInterval mask = [self bucketToRoundingFactor:bucket];
  44     NSTimeInterval now = [[NSDate date] timeIntervalSince1970];
  45     return (NSTimeInterval)(now + (mask - ((long)now % (long)mask)));
  46 }
  47
  48 @end
  49