Add BUYAccountCredentials object.

Mobile Buy SDK/Mobile Buy SDK/Models/BUYAccountCredentials.h

+//
+//  BUYAccountCredentials.h
+//  Mobile Buy SDK
+//
+//  Created by Shopify.
+//  Copyright (c) 2016 Shopify Inc. All rights reserved.
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+//
+
+#import <Foundation/Foundation.h>
+
+/**
+ *   Intended for storing a collection of credential items representing individual values
+ */
+
+@class BUYAccountCredentialItem;
+@interface BUYAccountCredentials : NSObject
+
+NS_ASSUME_NONNULL_BEGIN
+
++ (BUYAccountCredentials *)credentialsWithItems:(NSArray<BUYAccountCredentialItem *> *)items;
++ (BUYAccountCredentials *)credentialsWithItemKeys:(NSArray<NSString *> *)keys;
+
+@property (readonly) NSDictionary *JSONRepresentation;
+@property (nonatomic, readonly, getter=isValid) BOOL valid;
+
+- (BUYAccountCredentialItem *)objectForKeyedSubscript:(NSString *)key;
+- (void)setObject:(BUYAccountCredentialItem *)obj forKeyedSubscript:(NSString *)key;
+
+@end
+
+
+/**
+ *  Represents a key and KVC-validatable value
+ */
+
+@interface BUYAccountCredentialItem : NSObject
+
++ (instancetype)itemWithKey:(NSString *)key value:(NSString *)value;
+
+@property (nonatomic, getter=isValid) BOOL valid;
+@property (nonatomic, strong) NSString *key;
+@property (nonatomic, strong) NSString *value;
+
+NS_ASSUME_NONNULL_END
+
+@end

Mobile Buy SDK/Mobile Buy SDK/Models/BUYAccountCredentials.m

+//
+//  BUYAccountCredentials.m
+//  Mobile Buy SDK
+//
+//  Created by Shopify.
+//  Copyright (c) 2016 Shopify Inc. All rights reserved.
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in
+//  all copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+//  THE SOFTWARE.
+//
+
+#import "BUYAccountCredentials.h"
+
+@class BUYAccountCredentialItem;
+@interface BUYAccountCredentials()
+@property (strong, nonatomic) NSMutableDictionary<NSString *, BUYAccountCredentialItem *> *items;
+@end
+
+@implementation BUYAccountCredentials
+
++ (BUYAccountCredentials *)credentialsWithItems:(NSArray<BUYAccountCredentialItem *> *)items
+{
+	BUYAccountCredentials *credentials = [BUYAccountCredentials new];
+	NSMutableDictionary *keyedItems = [NSMutableDictionary dictionary];
+	for (BUYAccountCredentialItem *item in items) {
+		keyedItems[item.key] = item;
+	}
+	credentials.items = keyedItems;
+	return credentials;
+}
+
++ (BUYAccountCredentials *)credentialsWithItemKeys:(NSArray<NSString *> *)keys
+{
+	NSMutableArray *items = [NSMutableArray array];
+	for (NSString *key in keys) {
+		BUYAccountCredentialItem *item = [BUYAccountCredentialItem itemWithKey:key value:@""];
+		[items addObject:item];
+	}
+	return [BUYAccountCredentials credentialsWithItems:items];
+}
+
+- (NSDictionary *)JSONRepresentation
+{
+	__block NSMutableDictionary *customer = [NSMutableDictionary dictionary];
+	[self.items enumerateKeysAndObjectsUsingBlock:^(NSString * _Nonnull key, BUYAccountCredentialItem * _Nonnull obj, BOOL * _Nonnull stop) {
+		customer[key] = obj.value;
+	}];
+	return @{ @"customer": customer };
+}
+
+- (BOOL)validateValue:(inout id  _Nullable __autoreleasing *)ioValue forKey:(NSString *)inKey error:(out NSError * _Nullable __autoreleasing *)outError
+{
+	return [self.items[inKey] validateValue:ioValue forKey:inKey error:outError];
+}
+
+- (BUYAccountCredentialItem *)objectForKeyedSubscript:(NSString *)key
+{
+	return self.items[key];
+}
+
+- (void)setObject:(BUYAccountCredentialItem *)obj forKeyedSubscript:(NSString *)key
+{
+	self.items[key] = obj;
+}
+
+- (BOOL)validationForKey:(NSString *)key
+{
+	return [self.items[key] isValid];
+}
+
+- (BOOL)isValid
+{
+	__block BOOL valid = YES;
+	[self.items enumerateKeysAndObjectsUsingBlock:^(NSString * _Nonnull key, BUYAccountCredentialItem * _Nonnull obj, BOOL * _Nonnull stop) {
+		valid = valid && [obj isValid];
+	}];
+	return valid;
+}
+
+@end
+
+@implementation BUYAccountCredentialItem
+
++ (instancetype)itemWithKey:(NSString *)key value:(NSString *)value
+{
+	BUYAccountCredentialItem *item = [BUYAccountCredentialItem new];
+	item.key = key;
+	item.value = value;
+	return item;
+}
+
+- (NSString *)value
+{
+	return _value ?: @"";
+}
+
+- (BOOL)validateValue:(inout id  _Nullable __autoreleasing *)ioValue forKey:(NSString *)inKey error:(out NSError * _Nullable __autoreleasing *)outError
+{
+	self.value = *ioValue;
+	self.valid = self.value.length > 0;
+	return [self isValid];
+}
+
+@end