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#import "DroppedPinAnnotation.h"
#import "LocationCoordinate2DTransformer.h"
#import "TimeIntervalTransformer.h"
#import <Mapbox/Mapbox.h>
static MGLCoordinateFormatter *DroppedPinCoordinateFormatter;
@implementation DroppedPinAnnotation {
NSTimer *_timer;
NSTimeInterval _priorShownTimeInterval;
NSDate *_dateShown;
NSValueTransformer *_timeIntervalTransformer;
}
+ (void)initialize {
if (self == [DroppedPinAnnotation class]) {
DroppedPinCoordinateFormatter = [[MGLCoordinateFormatter alloc] init];
}
}
- (instancetype)init {
if (self = [super init]) {
_timeIntervalTransformer = [NSValueTransformer valueTransformerForName:
NSStringFromClass([TimeIntervalTransformer class])];
[self update:nil];
}
return self;
}
- (void)dealloc {
[self pause];
}
- (void)setCoordinate:(CLLocationCoordinate2D)coordinate {
super.coordinate = coordinate;
[self update:nil];
}
- (NSTimeInterval)elapsedShownTime {
return _priorShownTimeInterval - _dateShown.timeIntervalSinceNow;
}
- (void)resume {
_dateShown = [NSDate date];
_timer = [NSTimer scheduledTimerWithTimeInterval:1
target:self
selector:@selector(update:)
userInfo:nil
repeats:YES];
}
- (void)pause {
[_timer invalidate];
_timer = nil;
_priorShownTimeInterval -= _dateShown.timeIntervalSinceNow;
_dateShown = nil;
}
- (void)update:(NSTimer *)timer {
NSString *coordinate = [DroppedPinCoordinateFormatter stringFromCoordinate:self.coordinate];
NSString *elapsedTime = [_timeIntervalTransformer transformedValue:@(self.elapsedShownTime)];
self.subtitle = [NSString stringWithFormat:@"%@\nSelected for %@", coordinate, elapsedTime];
}
@end
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