AMPUtils.m

//
//  AMPUtil.m
//  Pods
//
//  Created by Daniel Jih on 10/4/15.
//
//

#import <Foundation/Foundation.h>
#import "AMPUtils.h"
#import "AMPARCMacros.h"

@interface AMPUtils()
@end

@implementation AMPUtils

+ (id)alloc
{
    // Util class cannot be instantiated.
    return nil;
}

+ (NSString*)generateUUID
{
    CFUUIDRef uuid = CFUUIDCreate(kCFAllocatorDefault);
#if __has_feature(objc_arc)
    NSString *uuidStr = (__bridge_transfer NSString *)CFUUIDCreateString(kCFAllocatorDefault, uuid);
#else
    NSString *uuidStr = (NSString *) CFUUIDCreateString(kCFAllocatorDefault, uuid);
#endif
    CFRelease(uuid);
    return SAFE_ARC_AUTORELEASE(uuidStr);
}

+ (id) makeJSONSerializable:(id) obj
{
    if (obj == nil) {
        return [NSNull null];
    }
    if ([obj isKindOfClass:[NSString class]] ||
        [obj isKindOfClass:[NSNull class]]) {
        return obj;
    }
    if ([obj isKindOfClass:[NSNumber class]]) {
        if (!isfinite([obj floatValue])) {
            return [NSNull null];
        } else {
            return obj;
        }
    }
    if ([obj isKindOfClass:[NSDate class]]) {
        return [obj description];
    }
    if ([obj isKindOfClass:[NSArray class]]) {
        NSMutableArray *arr = [NSMutableArray array];
        id objCopy = [obj copy];
        for (id i in objCopy) {
            [arr addObject:[self makeJSONSerializable:i]];
        }
        SAFE_ARC_RELEASE(objCopy);
        return [NSArray arrayWithArray:arr];
    }
    if ([obj isKindOfClass:[NSDictionary class]]) {
        NSMutableDictionary *dict = [NSMutableDictionary dictionary];
        id objCopy = [obj copy];
        for (id key in objCopy) {
            NSString *coercedKey;
            if (![key isKindOfClass:[NSString class]]) {
                coercedKey = [key description];
                NSLog(@"WARNING: Non-string property key, received %@, coercing to %@", [key class], coercedKey);
            } else {
                coercedKey = key;
            }
            dict[coercedKey] = [self makeJSONSerializable:objCopy[key]];
        }
        SAFE_ARC_RELEASE(objCopy);
        return [NSDictionary dictionaryWithDictionary:dict];
    }
    NSString *str = [obj description];
    NSLog(@"WARNING: Invalid property value type, received %@, coercing to %@", [obj class], str);
    return str;
}

@end