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/*
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* Copyright 2017 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import <TargetConditionals.h>
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#if TARGET_OS_IOS || TARGET_OS_TV
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#import "FirebaseInAppMessaging/Sources/Util/FIRIAMElapsedTimeTracker.h"
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@interface FIRIAMElapsedTimeTracker ()
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@property(nonatomic) NSTimeInterval totalTrackedTimeSoFar;
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@property(nonatomic) NSTimeInterval lastTrackingStartPoint;
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@property(nonatomic, nonnull) id<FIRIAMTimeFetcher> timeFetcher;
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@property(nonatomic) BOOL tracking;
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@end
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@implementation FIRIAMElapsedTimeTracker
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- (NSTimeInterval)trackedTimeSoFar {
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if (_tracking) {
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return self.totalTrackedTimeSoFar + [self.timeFetcher currentTimestampInSeconds] -
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self.lastTrackingStartPoint;
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} else {
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return self.totalTrackedTimeSoFar;
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}
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}
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- (void)pause {
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self.tracking = NO;
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self.totalTrackedTimeSoFar +=
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[self.timeFetcher currentTimestampInSeconds] - self.lastTrackingStartPoint;
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}
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- (void)resume {
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self.tracking = YES;
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self.lastTrackingStartPoint = [self.timeFetcher currentTimestampInSeconds];
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}
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- (instancetype)initWithTimeFetcher:(id<FIRIAMTimeFetcher>)timeFetcher {
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if (self = [super init]) {
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_tracking = YES;
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_timeFetcher = timeFetcher;
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_totalTrackedTimeSoFar = 0;
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_lastTrackingStartPoint = [timeFetcher currentTimestampInSeconds];
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}
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return self;
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}
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@end
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#endif // TARGET_OS_IOS || TARGET_OS_TV
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