MKStoreManager.h

//
//  StoreManager.h
//  MKStoreKit (Version 4.0)
//
//  Created by Mugunth Kumar on 17-Nov-2010.
//  Version 4.1
//  Copyright 2010 Steinlogic. All rights reserved.
//	File created using Singleton XCode Template by Mugunth Kumar (http://mugunthkumar.com
//  Permission granted to do anything, commercial/non-commercial with this file apart from removing the line/URL above
//  Read my blog post at http://mk.sg/1m on how to use this code

//  Licensing (Zlib)
//  This software is provided 'as-is', without any express or implied
//  warranty.  In no event will the authors be held liable for any damages
//  arising from the use of this software.
//
//  Permission is granted to anyone to use this software for any purpose,
//  including commercial applications, and to alter it and redistribute it
//  freely, subject to the following restrictions:
//
//  1. The origin of this software must not be misrepresented; you must not
//  claim that you wrote the original software. If you use this software
//  in a product, an acknowledgment in the product documentation would be
//  appreciated but is not required.
//  2. Altered source versions must be plainly marked as such, and must not be
//  misrepresented as being the original software.
//  3. This notice may not be removed or altered from any source distribution.

//  As a side note on using this code, you might consider giving some credit to me by
//	1) linking my website from your app's website 
//	2) or crediting me inside the app's credits page 
//	3) or a tweet mentioning @mugunthkumar
//	4) A paypal donation to mugunth.kumar@gmail.com


#import <Foundation/Foundation.h>
#import <StoreKit/StoreKit.h>
#import "MKStoreObserver.h"
#import "MKStoreKitConfigs.h"
#import "JSONKit.h"

#define kReceiptStringKey @"MK_STOREKIT_RECEIPTS_STRING"

#ifndef NDEBUG
#define kReceiptValidationURL @"https://sandbox.itunes.apple.com/verifyReceipt"
#else
#define kReceiptValidationURL @"https://buy.itunes.apple.com/verifyReceipt"
#endif

#define kProductFetchedNotification @"MKStoreKitProductsFetched"
#define kSubscriptionsPurchasedNotification @"MKStoreKitSubscriptionsPurchased"
#define kSubscriptionsInvalidNotification @"MKStoreKitSubscriptionsInvalid"

@interface MKStoreManager : NSObject<SKProductsRequestDelegate>

// These are the methods you will be using in your app
+ (MKStoreManager*)sharedManager;

// this is a static method, since it doesn't require the store manager to be initialized prior to calling
+ (BOOL) isFeaturePurchased:(NSString*) featureId; 
//returns a dictionary with all prices for identifiers
- (NSMutableDictionary *)pricesDictionary;
- (NSMutableArray*) purchasableObjectsDescription;

// use this method to invoke a purchase
- (void) buyFeature:(NSString*) featureId
         onComplete:(void (^)(NSString*)) completionBlock         
        onCancelled:(void (^)(void)) cancelBlock;

// use this method to restore a purchase
- (void) restorePreviousTransactionsOnComplete:(void (^)(void)) completionBlock
                                       onError:(void (^)(NSError*)) errorBlock;

- (BOOL) canConsumeProduct:(NSString*) productName quantity:(int) quantity;
- (BOOL) consumeProduct:(NSString*) productName quantity:(int) quantity;
- (BOOL) isSubscriptionActive:(NSString*) featureId;
//for testing proposes you can use this method to remove all the saved keychain data (saved purchases, etc.)
- (BOOL) removeAllKeychainData;

+(void) setObject:(id) object forKey:(NSString*) key;
+(NSNumber*) numberForKey:(NSString*) key;

-(void) restoreCompleted;
-(void) restoreFailedWithError:(NSError*) error;
@end