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#import "MGLClockDirectionFormatter.h"
#import "NSBundle+MGLAdditions.h"
#define wrap(value, min, max) \
(fmod((fmod((value - min), (max - min)) + (max - min)), (max - min)) + min)
@implementation MGLClockDirectionFormatter {
NSNumberFormatter *_numberFormatter;
}
- (instancetype)init {
if (self = [super init]) {
_unitStyle = NSFormattingUnitStyleMedium;
_numberFormatter = [[NSNumberFormatter alloc] init];
_numberFormatter.numberStyle = NSNumberFormatterDecimalStyle;
}
return self;
}
- (NSString *)stringFromDirection:(CLLocationDirection)direction {
NSInteger hour = round(wrap(direction, 0, 360) / 360 * 12);
if (hour == 0) {
hour = 12;
}
NSString *format;
switch (self.unitStyle) {
case NSFormattingUnitStyleShort:
format = NSLocalizedStringWithDefaultValue(@"CLOCK_FMT_SHORT", @"Foundation", nil, @"%@:00", @"Clock position format, short: {hours}:00");
break;
case NSFormattingUnitStyleMedium:
format = NSLocalizedStringWithDefaultValue(@"CLOCK_FMT_MEDIUM", @"Foundation", nil, @"%@ o’clock", @"Clock position format, medium: {hours} o’clock");
break;
case NSFormattingUnitStyleLong:
format = NSLocalizedStringWithDefaultValue(@"CLOCK_FMT_LONG", @"Foundation", nil, @"%@ o’clock", @"Clock position format, long: {hours} o’clock");
break;
default:
break;
}
return [NSString stringWithFormat:format, [_numberFormatter stringFromNumber:@(hour)]];
}
- (nullable NSString *)stringForObjectValue:(id)obj {
if (![obj isKindOfClass:[NSValue class]]) {
return nil;
}
return [self stringFromDirection:[obj doubleValue]];
}
- (BOOL)getObjectValue:(out id __nullable * __nullable)obj forString:(NSString *)string errorDescription:(out NSString * __nullable * __nullable)error {
NSAssert(NO, @"-getObjectValue:forString:errorDescription: has not been implemented");
return NO;
}
@end
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