/*

     File: ANBEUI64Transformer.m

 Abstract: Implementation for an NSValueTransformer subclass for transforming a numeric EUI-64 into a string and back again.

  Version: 1.0

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 */

#import "ANBEUI64Transformer.h"

@implementation ANBEUI64Transformer

+ (Class)transformedValueClass

{

    return [NSString class];

}

+ (BOOL)allowsReverseTransformation

{

    return YES;

}

- (id)transformedValue:(id)value

{

    id result = nil;

    if([value isKindOfClass:[NSNumber class]])

    {

        result = [NSString stringWithFormat:@"0x%016llx", [value unsignedLongLongValue]];

    }

    else if([value isKindOfClass:[NSArray class]])

    {

        NSMutableArray *newArray = [NSMutableArray array];

        for(id obj in (NSArray *)value)

        {

            if([obj isKindOfClass:[NSNumber class]])

            {

                [newArray addObject:[NSString stringWithFormat:@"0x%016llx", [obj unsignedLongLongValue]]];

            }

            else

            {

                [newArray addObject:[NSNull null]];

            }

        }

        result = newArray;

    }

    return result;

}

- (id)reverseTransformedValue:(id)value

{

    id result = nil;

    if([value isKindOfClass:[NSString class]])

    {

        NSScanner *scanner = [NSScanner scannerWithString:value];

        unsigned long long val;

        [scanner scanHexLongLong:&val];

        result = [NSNumber numberWithUnsignedLongLong:val];

    }

    else if([value isKindOfClass:[NSArray class]])

    {

        NSMutableArray *newArray = [NSMutableArray array];

        for(id obj in (NSArray *)value)

        {

            NSScanner *scanner = [NSScanner scannerWithString:obj];

            unsigned long long val;

            [scanner scanHexLongLong:&val];

            [newArray addObject:[NSNumber numberWithUnsignedLongLong:val]];

        }

        result = newArray;

    }

    return result;

}

@end