#import "SGFeatureCollection.h"

#import "SGFeatureCollection+Private.h"

#import "NSArray+SGFeature.h"

@interface SGFeatureCollection ()

@property (retain) NSArray* features;

@implementation SGFeatureCollection

@synthesize features;

+ (SGFeatureCollection *)featureCollectionWithDictionary:(NSDictionary *)features

{

return [[[SGFeatureCollection alloc] initWithDictionary:features] autorelease];

}

+ (SGFeatureCollection *)featureCollectionWithFeatures:(NSArray *)features

{

return [[[SGFeatureCollection alloc] initWithFeatures:features] autorelease];

}

+ (SGFeatureCollection *)featureCollectionWithRecords:(NSArray *)records

{

return [[[SGFeatureCollection alloc] initWithRecords:records] autorelease];

}

- (id)initWithDictionary:(NSDictionary *)someFeatures

{

if ([[someFeatures objectForKey:@"type"] isEqual:@"FeatureCollection"]) {

return [self initWithFeatures:[someFeatures objectForKey:@"features"]];

} else {

NSLog(@"Invalid type '%@' for a FeatureCollection.", [someFeatures objectForKey:@"type"]);

return nil;

}

}

- (id)initWithFeatures:(NSArray *)someFeatures

{

self = [super init];

if (self) {

if (someFeatures) {

features = [[NSArray arrayWithFeatures:someFeatures] retain];

} else {

features = [[NSArray alloc] init];

}

}

return self;

}

- (id)initWithRecords:(NSArray *)someRecords

{

self = [super init];

if (self) {

if (someRecords) {

features = [someRecords retain];

} else {

features = [[NSArray alloc] init];

}

}

return self;

}

- (void)dealloc

{

[features release];

[super dealloc];

}

- (NSUInteger)count

{

return [features count];

}

- (NSDictionary *)asDictionary

{

NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithCapacity:2];

[dict setObject:@"FeatureCollection"

forKey:@"type"];

[dict setObject:features

forKey:@"features"];

return [NSDictionary dictionaryWithDictionary:dict];

}

- (id)JSON

{

return [self asDictionary];

}